| author | xuelei |
| Mon, 25 Jun 2018 13:41:39 -0700 | |
| changeset 50768 | 68fa3d4026ea |
| parent 47216 | src/java.base/share/classes/sun/security/ssl/CipherBox.java@71c04702a3d5 |
| child 51574 | ed52ea83f830 |
| permissions | -rw-r--r-- |
| 2 | 1 |
/* |
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.security.ssl; |
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||
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import java.nio.ByteBuffer; |
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import java.security.AccessController; |
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import java.security.GeneralSecurityException; |
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import java.security.InvalidAlgorithmParameterException; |
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import java.security.InvalidKeyException; |
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import java.security.Key; |
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import java.security.PrivilegedAction; |
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import java.security.SecureRandom; |
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import java.security.Security; |
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import java.security.spec.AlgorithmParameterSpec; |
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import java.util.AbstractMap.SimpleImmutableEntry; |
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import java.util.Arrays; |
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import java.util.HashMap; |
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import java.util.Map; |
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import javax.crypto.BadPaddingException; |
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import javax.crypto.Cipher; |
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import javax.crypto.IllegalBlockSizeException; |
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import javax.crypto.SecretKey; |
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import javax.crypto.ShortBufferException; |
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import javax.crypto.spec.GCMParameterSpec; |
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import javax.crypto.spec.IvParameterSpec; |
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import sun.security.ssl.Authenticator.MAC; |
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import static sun.security.ssl.CipherType.*; |
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import static sun.security.ssl.JsseJce.*; |
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enum SSLCipher {
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// exportable ciphers |
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@SuppressWarnings({"unchecked", "rawtypes"})
|
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B_NULL("NULL", NULL_CIPHER, 0, 0, 0, 0, true, true,
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
|
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new NullReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_NONE |
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), |
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new NullReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_13 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new NullWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_NONE |
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), |
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new NullWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_13 |
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) |
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})), |
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_RC4_40(CIPHER_RC4, STREAM_CIPHER, 5, 16, 0, 0, true, true, |
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
|
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new StreamReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new StreamWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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) |
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})), |
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_RC2_40("RC2", BLOCK_CIPHER, 5, 16, 8, 0, false, true,
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new StreamReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new StreamWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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) |
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})), |
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_DES_40(CIPHER_DES, BLOCK_CIPHER, 5, 8, 8, 0, true, true, |
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T10BlockReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T10BlockWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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) |
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})), |
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// domestic strength ciphers |
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_RC4_128(CIPHER_RC4, STREAM_CIPHER, 16, 16, 0, 0, true, false, |
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new StreamReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_12 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new StreamWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_12 |
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) |
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})), |
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||
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_DES(CIPHER_DES, BLOCK_CIPHER, 8, 8, 8, 0, true, false, |
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T10BlockReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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), |
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T11BlockReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_11 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T10BlockWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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), |
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T11BlockWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_11 |
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) |
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})), |
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_3DES(CIPHER_3DES, BLOCK_CIPHER, 24, 24, 8, 0, true, false, |
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T10BlockReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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), |
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T11BlockReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_11_12 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T10BlockWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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), |
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T11BlockWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_11_12 |
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) |
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})), |
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||
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_IDEA("IDEA", BLOCK_CIPHER, 16, 16, 8, 0, false, false,
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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null, |
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ProtocolVersion.PROTOCOLS_TO_12 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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null, |
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ProtocolVersion.PROTOCOLS_TO_12 |
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) |
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})), |
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||
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_AES_128(CIPHER_AES, BLOCK_CIPHER, 16, 16, 16, 0, true, false, |
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T10BlockReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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), |
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T11BlockReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_11_12 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T10BlockWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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), |
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T11BlockWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_11_12 |
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) |
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})), |
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||
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_AES_256(CIPHER_AES, BLOCK_CIPHER, 32, 32, 16, 0, true, false, |
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T10BlockReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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), |
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T11BlockReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_11_12 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T10BlockWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_TO_10 |
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), |
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T11BlockWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_11_12 |
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) |
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})), |
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_AES_128_GCM(CIPHER_AES_GCM, AEAD_CIPHER, 16, 16, 12, 4, true, false, |
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T12GcmReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_12 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T12GcmWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_12 |
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) |
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})), |
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_AES_256_GCM(CIPHER_AES_GCM, AEAD_CIPHER, 32, 32, 12, 4, true, false, |
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
|
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T12GcmReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_12 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
|
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T12GcmWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_12 |
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) |
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})), |
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_AES_128_GCM_IV(CIPHER_AES_GCM, AEAD_CIPHER, 16, 16, 12, 0, true, false, |
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
|
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T13GcmReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_13 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
|
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T13GcmWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_13 |
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) |
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})), |
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|
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@SuppressWarnings({"unchecked", "rawtypes"})
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B_AES_256_GCM_IV(CIPHER_AES_GCM, AEAD_CIPHER, 32, 32, 12, 0, true, false, |
|
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(Map.Entry<ReadCipherGenerator, |
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ProtocolVersion[]>[])(new Map.Entry[] {
|
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new SimpleImmutableEntry<ReadCipherGenerator, ProtocolVersion[]>( |
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new T13GcmReadCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_13 |
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) |
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}), |
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(Map.Entry<WriteCipherGenerator, |
|
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ProtocolVersion[]>[])(new Map.Entry[] {
|
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new SimpleImmutableEntry<WriteCipherGenerator, ProtocolVersion[]>( |
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new T13GcmWriteCipherGenerator(), |
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ProtocolVersion.PROTOCOLS_OF_13 |
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) |
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})); |
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||
334 |
// descriptive name including key size, e.g. AES/128 |
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final String description; |
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336 |
||
337 |
// JCE cipher transformation string, e.g. AES/CBC/NoPadding |
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final String transformation; |
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339 |
||
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// algorithm name, e.g. AES |
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final String algorithm; |
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342 |
||
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// supported and compile time enabled. Also see isAvailable() |
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final boolean allowed; |
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345 |
||
346 |
// number of bytes of entropy in the key |
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final int keySize; |
|
| 16913 | 348 |
|
| 50768 | 349 |
// length of the actual cipher key in bytes. |
350 |
// for non-exportable ciphers, this is the same as keySize |
|
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final int expandedKeySize; |
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352 |
||
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// size of the IV |
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final int ivSize; |
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355 |
||
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// size of fixed IV |
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// |
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358 |
// record_iv_length = ivSize - fixedIvSize |
|
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final int fixedIvSize; |
|
360 |
||
361 |
// exportable under 512/40 bit rules |
|
362 |
final boolean exportable; |
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363 |
||
364 |
// Is the cipher algorithm of Cipher Block Chaining (CBC) mode? |
|
365 |
final CipherType cipherType; |
|
| 16913 | 366 |
|
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// size of the authentication tag, only applicable to cipher suites in |
368 |
// Galois Counter Mode (GCM) |
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369 |
// |
|
370 |
// As far as we know, all supported GCM cipher suites use 128-bits |
|
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// authentication tags. |
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final int tagSize = 16; |
|
373 |
||
374 |
// runtime availability |
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private final boolean isAvailable; |
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376 |
||
377 |
private final Map.Entry<ReadCipherGenerator, |
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378 |
ProtocolVersion[]>[] readCipherGenerators; |
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private final Map.Entry<WriteCipherGenerator, |
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ProtocolVersion[]>[] writeCipherGenerators; |
|
381 |
||
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// Map of Ciphers listed in jdk.tls.KeyLimit |
|
383 |
private static final HashMap<String, Long> cipherLimits = new HashMap<>(); |
|
384 |
||
385 |
// Keywords found on the jdk.tls.KeyLimit security property. |
|
386 |
final static String tag[] = {"KEYUPDATE"};
|
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| 16913 | 387 |
|
| 50768 | 388 |
static {
|
389 |
final long max = 4611686018427387904L; // 2^62 |
|
390 |
String prop = AccessController.doPrivileged( |
|
391 |
new PrivilegedAction<String>() {
|
|
392 |
@Override |
|
393 |
public String run() {
|
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394 |
return Security.getProperty("jdk.tls.keyLimits");
|
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} |
|
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}); |
|
397 |
||
398 |
if (prop != null) {
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399 |
String propvalue[] = prop.split(",");
|
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400 |
||
401 |
for (String entry : propvalue) {
|
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402 |
int index; |
|
403 |
// If this is not a UsageLimit, goto to next entry. |
|
404 |
String values[] = entry.trim().toUpperCase().split(" ");
|
|
405 |
||
406 |
if (values[1].contains(tag[0])) {
|
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407 |
index = 0; |
|
408 |
} else {
|
|
409 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl")) {
|
|
410 |
SSLLogger.fine("jdk.net.keyLimits: Unknown action: " +
|
|
411 |
entry); |
|
412 |
} |
|
413 |
continue; |
|
414 |
} |
|
| 16913 | 415 |
|
| 50768 | 416 |
long size; |
417 |
int i = values[2].indexOf("^");
|
|
418 |
try {
|
|
419 |
if (i >= 0) {
|
|
420 |
size = (long) Math.pow(2, |
|
421 |
Integer.parseInt(values[2].substring(i + 1))); |
|
422 |
} else {
|
|
423 |
size = Long.parseLong(values[2]); |
|
424 |
} |
|
425 |
if (size < 1 || size > max) {
|
|
426 |
throw new NumberFormatException("Length exceeded limits");
|
|
427 |
} |
|
428 |
} catch (NumberFormatException e) {
|
|
429 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl")) {
|
|
430 |
SSLLogger.fine("jdk.net.keyLimits: " + e.getMessage() +
|
|
431 |
": " + entry); |
|
432 |
} |
|
433 |
continue; |
|
434 |
} |
|
435 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl")) {
|
|
436 |
SSLLogger.fine("jdk.net.keyLimits: entry = " + entry +
|
|
437 |
". " + values[0] + ":" + tag[index] + " = " + size); |
|
438 |
} |
|
439 |
cipherLimits.put(values[0] + ":" + tag[index], size); |
|
440 |
} |
|
441 |
} |
|
442 |
} |
|
| 10915 | 443 |
|
| 50768 | 444 |
private SSLCipher(String transformation, |
445 |
CipherType cipherType, int keySize, |
|
446 |
int expandedKeySize, int ivSize, |
|
447 |
int fixedIvSize, boolean allowed, boolean exportable, |
|
448 |
Map.Entry<ReadCipherGenerator, |
|
449 |
ProtocolVersion[]>[] readCipherGenerators, |
|
450 |
Map.Entry<WriteCipherGenerator, |
|
451 |
ProtocolVersion[]>[] writeCipherGenerators) {
|
|
452 |
this.transformation = transformation; |
|
453 |
String[] splits = transformation.split("/");
|
|
454 |
this.algorithm = splits[0]; |
|
455 |
this.cipherType = cipherType; |
|
456 |
this.description = this.algorithm + "/" + (keySize << 3); |
|
457 |
this.keySize = keySize; |
|
458 |
this.ivSize = ivSize; |
|
459 |
this.fixedIvSize = fixedIvSize; |
|
460 |
this.allowed = allowed; |
|
461 |
||
462 |
this.expandedKeySize = expandedKeySize; |
|
463 |
this.exportable = exportable; |
|
464 |
||
465 |
// availability of this bulk cipher |
|
466 |
// |
|
467 |
// We assume all supported ciphers are always available since they are |
|
468 |
// shipped with the SunJCE provider. However, AES/256 is unavailable |
|
469 |
// when the default JCE policy jurisdiction files are installed because |
|
470 |
// of key length restrictions. |
|
471 |
this.isAvailable = allowed && isUnlimited(keySize, transformation); |
|
472 |
||
473 |
this.readCipherGenerators = readCipherGenerators; |
|
474 |
this.writeCipherGenerators = writeCipherGenerators; |
|
475 |
} |
|
476 |
||
477 |
SSLReadCipher createReadCipher(Authenticator authenticator, |
|
478 |
ProtocolVersion protocolVersion, |
|
479 |
SecretKey key, IvParameterSpec iv, |
|
480 |
SecureRandom random) throws GeneralSecurityException {
|
|
481 |
if (readCipherGenerators.length == 0) {
|
|
482 |
return null; |
|
483 |
} |
|
| 7039 | 484 |
|
| 50768 | 485 |
ReadCipherGenerator rcg = null; |
486 |
for (Map.Entry<ReadCipherGenerator, |
|
487 |
ProtocolVersion[]> me : readCipherGenerators) {
|
|
488 |
for (ProtocolVersion pv : me.getValue()) {
|
|
489 |
if (protocolVersion == pv) {
|
|
490 |
rcg = me.getKey(); |
|
491 |
} |
|
492 |
} |
|
493 |
} |
|
494 |
||
495 |
if (rcg != null) {
|
|
496 |
return rcg.createCipher(this, authenticator, |
|
497 |
protocolVersion, transformation, key, iv, random); |
|
498 |
} |
|
499 |
return null; |
|
500 |
} |
|
501 |
||
502 |
SSLWriteCipher createWriteCipher(Authenticator authenticator, |
|
503 |
ProtocolVersion protocolVersion, |
|
504 |
SecretKey key, IvParameterSpec iv, |
|
505 |
SecureRandom random) throws GeneralSecurityException {
|
|
506 |
if (readCipherGenerators.length == 0) {
|
|
507 |
return null; |
|
508 |
} |
|
509 |
||
510 |
WriteCipherGenerator rcg = null; |
|
511 |
for (Map.Entry<WriteCipherGenerator, |
|
512 |
ProtocolVersion[]> me : writeCipherGenerators) {
|
|
513 |
for (ProtocolVersion pv : me.getValue()) {
|
|
514 |
if (protocolVersion == pv) {
|
|
515 |
rcg = me.getKey(); |
|
516 |
} |
|
517 |
} |
|
518 |
} |
|
519 |
||
520 |
if (rcg != null) {
|
|
521 |
return rcg.createCipher(this, authenticator, |
|
522 |
protocolVersion, transformation, key, iv, random); |
|
523 |
} |
|
524 |
return null; |
|
| 2 | 525 |
} |
526 |
||
527 |
/** |
|
| 50768 | 528 |
* Test if this bulk cipher is available. For use by CipherSuite. |
| 2 | 529 |
*/ |
| 50768 | 530 |
boolean isAvailable() {
|
531 |
return this.isAvailable; |
|
532 |
} |
|
| 7039 | 533 |
|
| 50768 | 534 |
private static boolean isUnlimited(int keySize, String transformation) {
|
535 |
int keySizeInBits = keySize * 8; |
|
536 |
if (keySizeInBits > 128) { // need the JCE unlimited
|
|
537 |
// strength jurisdiction policy |
|
538 |
try {
|
|
539 |
if (Cipher.getMaxAllowedKeyLength( |
|
540 |
transformation) < keySizeInBits) {
|
|
541 |
return false; |
|
542 |
} |
|
543 |
} catch (Exception e) {
|
|
544 |
return false; |
|
| 7039 | 545 |
} |
| 50768 | 546 |
} |
547 |
||
548 |
return true; |
|
549 |
} |
|
550 |
||
551 |
@Override |
|
552 |
public String toString() {
|
|
553 |
return description; |
|
554 |
} |
|
555 |
||
556 |
interface ReadCipherGenerator {
|
|
557 |
SSLReadCipher createCipher(SSLCipher sslCipher, |
|
558 |
Authenticator authenticator, |
|
559 |
ProtocolVersion protocolVersion, String algorithm, |
|
560 |
Key key, AlgorithmParameterSpec params, |
|
561 |
SecureRandom random) throws GeneralSecurityException; |
|
562 |
} |
|
563 |
||
564 |
abstract static class SSLReadCipher {
|
|
565 |
final Authenticator authenticator; |
|
566 |
final ProtocolVersion protocolVersion; |
|
567 |
boolean keyLimitEnabled = false; |
|
568 |
long keyLimitCountdown = 0; |
|
569 |
SecretKey baseSecret; |
|
570 |
||
571 |
SSLReadCipher(Authenticator authenticator, |
|
572 |
ProtocolVersion protocolVersion) {
|
|
573 |
this.authenticator = authenticator; |
|
574 |
this.protocolVersion = protocolVersion; |
|
575 |
} |
|
| 7039 | 576 |
|
| 50768 | 577 |
static final SSLReadCipher nullTlsReadCipher() {
|
578 |
try {
|
|
579 |
return B_NULL.createReadCipher( |
|
580 |
Authenticator.nullTlsMac(), |
|
581 |
ProtocolVersion.NONE, null, null, null); |
|
582 |
} catch (GeneralSecurityException gse) {
|
|
583 |
// unlikely |
|
584 |
throw new RuntimeException("Cannot create NULL SSLCipher", gse);
|
|
585 |
} |
|
586 |
} |
|
587 |
||
588 |
static final SSLReadCipher nullDTlsReadCipher() {
|
|
589 |
try {
|
|
590 |
return B_NULL.createReadCipher( |
|
591 |
Authenticator.nullDtlsMac(), |
|
592 |
ProtocolVersion.NONE, null, null, null); |
|
593 |
} catch (GeneralSecurityException gse) {
|
|
594 |
// unlikely |
|
595 |
throw new RuntimeException("Cannot create NULL SSLCipher", gse);
|
|
596 |
} |
|
597 |
} |
|
598 |
||
599 |
abstract Plaintext decrypt(byte contentType, ByteBuffer bb, |
|
600 |
byte[] sequence) throws GeneralSecurityException; |
|
601 |
||
602 |
void dispose() {
|
|
603 |
// blank |
|
604 |
} |
|
605 |
||
606 |
abstract int estimateFragmentSize(int packetSize, int headerSize); |
|
607 |
||
608 |
boolean isNullCipher() {
|
|
609 |
return false; |
|
610 |
} |
|
611 |
||
612 |
/** |
|
613 |
* Check if processed bytes have reached the key usage limit. |
|
614 |
* If key usage limit is not be monitored, return false. |
|
615 |
*/ |
|
616 |
public boolean atKeyLimit() {
|
|
617 |
if (keyLimitCountdown >= 0) {
|
|
618 |
return false; |
|
| 7039 | 619 |
} |
620 |
||
| 50768 | 621 |
// Turn off limit checking as KeyUpdate will be occurring |
622 |
keyLimitEnabled = false; |
|
623 |
return true; |
|
| 2 | 624 |
} |
625 |
} |
|
626 |
||
| 50768 | 627 |
interface WriteCipherGenerator {
|
628 |
SSLWriteCipher createCipher(SSLCipher sslCipher, |
|
629 |
Authenticator authenticator, |
|
630 |
ProtocolVersion protocolVersion, String algorithm, |
|
631 |
Key key, AlgorithmParameterSpec params, |
|
632 |
SecureRandom random) throws GeneralSecurityException; |
|
633 |
} |
|
634 |
||
635 |
abstract static class SSLWriteCipher {
|
|
636 |
final Authenticator authenticator; |
|
637 |
final ProtocolVersion protocolVersion; |
|
638 |
boolean keyLimitEnabled = false; |
|
639 |
long keyLimitCountdown = 0; |
|
640 |
SecretKey baseSecret; |
|
641 |
||
642 |
SSLWriteCipher(Authenticator authenticator, |
|
643 |
ProtocolVersion protocolVersion) {
|
|
644 |
this.authenticator = authenticator; |
|
645 |
this.protocolVersion = protocolVersion; |
|
646 |
} |
|
647 |
||
648 |
abstract int encrypt(byte contentType, ByteBuffer bb); |
|
649 |
||
650 |
static final SSLWriteCipher nullTlsWriteCipher() {
|
|
651 |
try {
|
|
652 |
return B_NULL.createWriteCipher( |
|
653 |
Authenticator.nullTlsMac(), |
|
654 |
ProtocolVersion.NONE, null, null, null); |
|
655 |
} catch (GeneralSecurityException gse) {
|
|
656 |
// unlikely |
|
657 |
throw new RuntimeException( |
|
658 |
"Cannot create NULL SSL write Cipher", gse); |
|
659 |
} |
|
660 |
} |
|
661 |
||
662 |
static final SSLWriteCipher nullDTlsWriteCipher() {
|
|
663 |
try {
|
|
664 |
return B_NULL.createWriteCipher( |
|
665 |
Authenticator.nullDtlsMac(), |
|
666 |
ProtocolVersion.NONE, null, null, null); |
|
667 |
} catch (GeneralSecurityException gse) {
|
|
668 |
// unlikely |
|
669 |
throw new RuntimeException( |
|
670 |
"Cannot create NULL SSL write Cipher", gse); |
|
671 |
} |
|
672 |
} |
|
673 |
||
674 |
void dispose() {
|
|
675 |
// blank |
|
676 |
} |
|
677 |
||
678 |
abstract int getExplicitNonceSize(); |
|
679 |
abstract int calculateFragmentSize(int packetLimit, int headerSize); |
|
680 |
abstract int calculatePacketSize(int fragmentSize, int headerSize); |
|
681 |
||
682 |
boolean isCBCMode() {
|
|
683 |
return false; |
|
684 |
} |
|
685 |
||
686 |
boolean isNullCipher() {
|
|
687 |
return false; |
|
688 |
} |
|
689 |
||
690 |
/** |
|
691 |
* Check if processed bytes have reached the key usage limit. |
|
692 |
* If key usage limit is not be monitored, return false. |
|
693 |
*/ |
|
694 |
public boolean atKeyLimit() {
|
|
695 |
if (keyLimitCountdown >= 0) {
|
|
696 |
return false; |
|
697 |
} |
|
698 |
||
699 |
// Turn off limit checking as KeyUpdate will be occurring |
|
700 |
keyLimitEnabled = false; |
|
701 |
return true; |
|
702 |
} |
|
703 |
} |
|
704 |
||
705 |
private static final |
|
706 |
class NullReadCipherGenerator implements ReadCipherGenerator {
|
|
707 |
@Override |
|
708 |
public SSLReadCipher createCipher(SSLCipher sslCipher, |
|
709 |
Authenticator authenticator, |
|
710 |
ProtocolVersion protocolVersion, String algorithm, |
|
711 |
Key key, AlgorithmParameterSpec params, |
|
712 |
SecureRandom random) throws GeneralSecurityException {
|
|
713 |
return new NullReadCipher(authenticator, protocolVersion); |
|
| 2 | 714 |
} |
| 7039 | 715 |
|
| 50768 | 716 |
static final class NullReadCipher extends SSLReadCipher {
|
717 |
NullReadCipher(Authenticator authenticator, |
|
718 |
ProtocolVersion protocolVersion) {
|
|
719 |
super(authenticator, protocolVersion); |
|
720 |
} |
|
721 |
||
722 |
@Override |
|
723 |
public Plaintext decrypt(byte contentType, ByteBuffer bb, |
|
724 |
byte[] sequence) throws GeneralSecurityException {
|
|
725 |
MAC signer = (MAC)authenticator; |
|
726 |
if (signer.macAlg().size != 0) {
|
|
727 |
checkStreamMac(signer, bb, contentType, sequence); |
|
728 |
} else {
|
|
729 |
authenticator.increaseSequenceNumber(); |
|
730 |
} |
|
731 |
||
732 |
return new Plaintext(contentType, |
|
733 |
ProtocolVersion.NONE.major, ProtocolVersion.NONE.minor, |
|
734 |
-1, -1L, bb.slice()); |
|
735 |
} |
|
736 |
||
737 |
@Override |
|
738 |
int estimateFragmentSize(int packetSize, int headerSize) {
|
|
739 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
740 |
return packetSize - headerSize - macLen; |
|
741 |
} |
|
742 |
||
743 |
@Override |
|
744 |
boolean isNullCipher() {
|
|
745 |
return true; |
|
746 |
} |
|
747 |
} |
|
748 |
} |
|
749 |
||
750 |
private static final |
|
751 |
class NullWriteCipherGenerator implements WriteCipherGenerator {
|
|
752 |
@Override |
|
753 |
public SSLWriteCipher createCipher(SSLCipher sslCipher, |
|
754 |
Authenticator authenticator, |
|
755 |
ProtocolVersion protocolVersion, String algorithm, |
|
756 |
Key key, AlgorithmParameterSpec params, |
|
757 |
SecureRandom random) throws GeneralSecurityException {
|
|
758 |
return new NullWriteCipher(authenticator, protocolVersion); |
|
759 |
} |
|
760 |
||
761 |
static final class NullWriteCipher extends SSLWriteCipher {
|
|
762 |
NullWriteCipher(Authenticator authenticator, |
|
763 |
ProtocolVersion protocolVersion) {
|
|
764 |
super(authenticator, protocolVersion); |
|
765 |
} |
|
766 |
||
767 |
@Override |
|
768 |
public int encrypt(byte contentType, ByteBuffer bb) {
|
|
769 |
// add message authentication code |
|
770 |
MAC signer = (MAC)authenticator; |
|
771 |
if (signer.macAlg().size != 0) {
|
|
772 |
addMac(signer, bb, contentType); |
|
773 |
} else {
|
|
774 |
authenticator.increaseSequenceNumber(); |
|
775 |
} |
|
776 |
||
777 |
int len = bb.remaining(); |
|
778 |
bb.position(bb.limit()); |
|
779 |
return len; |
|
780 |
} |
|
781 |
||
782 |
||
783 |
@Override |
|
784 |
int getExplicitNonceSize() {
|
|
785 |
return 0; |
|
786 |
} |
|
787 |
||
788 |
@Override |
|
789 |
int calculateFragmentSize(int packetLimit, int headerSize) {
|
|
790 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
791 |
return packetLimit - headerSize - macLen; |
|
792 |
} |
|
793 |
||
794 |
@Override |
|
795 |
int calculatePacketSize(int fragmentSize, int headerSize) {
|
|
796 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
797 |
return fragmentSize + headerSize + macLen; |
|
798 |
} |
|
799 |
||
800 |
@Override |
|
801 |
boolean isNullCipher() {
|
|
802 |
return true; |
|
803 |
} |
|
| 2 | 804 |
} |
805 |
} |
|
806 |
||
| 50768 | 807 |
private static final |
808 |
class StreamReadCipherGenerator implements ReadCipherGenerator {
|
|
809 |
@Override |
|
810 |
public SSLReadCipher createCipher(SSLCipher sslCipher, |
|
811 |
Authenticator authenticator, |
|
812 |
ProtocolVersion protocolVersion, String algorithm, |
|
813 |
Key key, AlgorithmParameterSpec params, |
|
814 |
SecureRandom random) throws GeneralSecurityException {
|
|
815 |
return new StreamReadCipher(authenticator, protocolVersion, |
|
816 |
algorithm, key, params, random); |
|
| 7039 | 817 |
} |
818 |
||
| 50768 | 819 |
static final class StreamReadCipher extends SSLReadCipher {
|
820 |
private final Cipher cipher; |
|
821 |
||
822 |
StreamReadCipher(Authenticator authenticator, |
|
823 |
ProtocolVersion protocolVersion, String algorithm, |
|
824 |
Key key, AlgorithmParameterSpec params, |
|
825 |
SecureRandom random) throws GeneralSecurityException {
|
|
826 |
super(authenticator, protocolVersion); |
|
827 |
this.cipher = JsseJce.getCipher(algorithm); |
|
828 |
cipher.init(Cipher.DECRYPT_MODE, key, params, random); |
|
829 |
} |
|
830 |
||
831 |
@Override |
|
832 |
public Plaintext decrypt(byte contentType, ByteBuffer bb, |
|
833 |
byte[] sequence) throws GeneralSecurityException {
|
|
834 |
int len = bb.remaining(); |
|
835 |
int pos = bb.position(); |
|
836 |
ByteBuffer dup = bb.duplicate(); |
|
837 |
try {
|
|
838 |
if (len != cipher.update(dup, bb)) {
|
|
839 |
// catch BouncyCastle buffering error |
|
840 |
throw new RuntimeException( |
|
841 |
"Unexpected number of plaintext bytes"); |
|
842 |
} |
|
843 |
if (bb.position() != dup.position()) {
|
|
844 |
throw new RuntimeException( |
|
845 |
"Unexpected ByteBuffer position"); |
|
846 |
} |
|
847 |
} catch (ShortBufferException sbe) {
|
|
848 |
// catch BouncyCastle buffering error |
|
849 |
throw new RuntimeException("Cipher buffering error in " +
|
|
850 |
"JCE provider " + cipher.getProvider().getName(), sbe); |
|
851 |
} |
|
852 |
bb.position(pos); |
|
853 |
if (SSLLogger.isOn && SSLLogger.isOn("plaintext")) {
|
|
854 |
SSLLogger.fine( |
|
855 |
"Plaintext after DECRYPTION", bb.duplicate()); |
|
856 |
} |
|
857 |
||
858 |
MAC signer = (MAC)authenticator; |
|
859 |
if (signer.macAlg().size != 0) {
|
|
860 |
checkStreamMac(signer, bb, contentType, sequence); |
|
861 |
} else {
|
|
862 |
authenticator.increaseSequenceNumber(); |
|
863 |
} |
|
864 |
||
865 |
return new Plaintext(contentType, |
|
866 |
ProtocolVersion.NONE.major, ProtocolVersion.NONE.minor, |
|
867 |
-1, -1L, bb.slice()); |
|
868 |
} |
|
869 |
||
870 |
@Override |
|
871 |
void dispose() {
|
|
872 |
if (cipher != null) {
|
|
873 |
try {
|
|
874 |
cipher.doFinal(); |
|
875 |
} catch (Exception e) {
|
|
876 |
// swallow all types of exceptions. |
|
877 |
} |
|
878 |
} |
|
879 |
} |
|
880 |
||
881 |
@Override |
|
882 |
int estimateFragmentSize(int packetSize, int headerSize) {
|
|
883 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
884 |
return packetSize - headerSize - macLen; |
|
885 |
} |
|
886 |
} |
|
| 7039 | 887 |
} |
888 |
||
| 50768 | 889 |
private static final |
890 |
class StreamWriteCipherGenerator implements WriteCipherGenerator {
|
|
891 |
@Override |
|
892 |
public SSLWriteCipher createCipher(SSLCipher sslCipher, |
|
893 |
Authenticator authenticator, |
|
894 |
ProtocolVersion protocolVersion, String algorithm, |
|
895 |
Key key, AlgorithmParameterSpec params, |
|
896 |
SecureRandom random) throws GeneralSecurityException {
|
|
897 |
return new StreamWriteCipher(authenticator, |
|
898 |
protocolVersion, algorithm, key, params, random); |
|
| 2 | 899 |
} |
| 7039 | 900 |
|
| 50768 | 901 |
static final class StreamWriteCipher extends SSLWriteCipher {
|
902 |
private final Cipher cipher; |
|
903 |
||
904 |
StreamWriteCipher(Authenticator authenticator, |
|
905 |
ProtocolVersion protocolVersion, String algorithm, |
|
906 |
Key key, AlgorithmParameterSpec params, |
|
907 |
SecureRandom random) throws GeneralSecurityException {
|
|
908 |
super(authenticator, protocolVersion); |
|
909 |
this.cipher = JsseJce.getCipher(algorithm); |
|
910 |
cipher.init(Cipher.ENCRYPT_MODE, key, params, random); |
|
911 |
} |
|
912 |
||
913 |
@Override |
|
914 |
public int encrypt(byte contentType, ByteBuffer bb) {
|
|
915 |
// add message authentication code |
|
916 |
MAC signer = (MAC)authenticator; |
|
917 |
if (signer.macAlg().size != 0) {
|
|
918 |
addMac(signer, bb, contentType); |
|
919 |
} else {
|
|
920 |
authenticator.increaseSequenceNumber(); |
|
921 |
} |
|
922 |
||
923 |
if (SSLLogger.isOn && SSLLogger.isOn("plaintext")) {
|
|
924 |
SSLLogger.finest( |
|
925 |
"Padded plaintext before ENCRYPTION", bb.duplicate()); |
|
926 |
} |
|
927 |
||
928 |
int len = bb.remaining(); |
|
929 |
ByteBuffer dup = bb.duplicate(); |
|
930 |
try {
|
|
931 |
if (len != cipher.update(dup, bb)) {
|
|
932 |
// catch BouncyCastle buffering error |
|
933 |
throw new RuntimeException( |
|
934 |
"Unexpected number of plaintext bytes"); |
|
935 |
} |
|
936 |
if (bb.position() != dup.position()) {
|
|
937 |
throw new RuntimeException( |
|
938 |
"Unexpected ByteBuffer position"); |
|
939 |
} |
|
940 |
} catch (ShortBufferException sbe) {
|
|
941 |
// catch BouncyCastle buffering error |
|
942 |
throw new RuntimeException("Cipher buffering error in " +
|
|
943 |
"JCE provider " + cipher.getProvider().getName(), sbe); |
|
944 |
} |
|
945 |
||
946 |
return len; |
|
947 |
} |
|
948 |
||
949 |
@Override |
|
950 |
void dispose() {
|
|
951 |
if (cipher != null) {
|
|
952 |
try {
|
|
953 |
cipher.doFinal(); |
|
954 |
} catch (Exception e) {
|
|
955 |
// swallow all types of exceptions. |
|
956 |
} |
|
957 |
} |
|
958 |
} |
|
959 |
||
960 |
@Override |
|
961 |
int getExplicitNonceSize() {
|
|
962 |
return 0; |
|
| 2 | 963 |
} |
| 16913 | 964 |
|
| 50768 | 965 |
@Override |
966 |
int calculateFragmentSize(int packetLimit, int headerSize) {
|
|
967 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
968 |
return packetLimit - headerSize - macLen; |
|
969 |
} |
|
970 |
||
971 |
@Override |
|
972 |
int calculatePacketSize(int fragmentSize, int headerSize) {
|
|
973 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
974 |
return fragmentSize + headerSize + macLen; |
|
975 |
} |
|
976 |
} |
|
977 |
} |
|
| 2 | 978 |
|
| 50768 | 979 |
private static final |
980 |
class T10BlockReadCipherGenerator implements ReadCipherGenerator {
|
|
981 |
@Override |
|
982 |
public SSLReadCipher createCipher(SSLCipher sslCipher, |
|
983 |
Authenticator authenticator, |
|
984 |
ProtocolVersion protocolVersion, String algorithm, |
|
985 |
Key key, AlgorithmParameterSpec params, |
|
986 |
SecureRandom random) throws GeneralSecurityException {
|
|
987 |
return new BlockReadCipher(authenticator, |
|
988 |
protocolVersion, algorithm, key, params, random); |
|
989 |
} |
|
990 |
||
991 |
static final class BlockReadCipher extends SSLReadCipher {
|
|
992 |
private final Cipher cipher; |
|
993 |
||
994 |
BlockReadCipher(Authenticator authenticator, |
|
995 |
ProtocolVersion protocolVersion, String algorithm, |
|
996 |
Key key, AlgorithmParameterSpec params, |
|
997 |
SecureRandom random) throws GeneralSecurityException {
|
|
998 |
super(authenticator, protocolVersion); |
|
999 |
this.cipher = JsseJce.getCipher(algorithm); |
|
1000 |
cipher.init(Cipher.DECRYPT_MODE, key, params, random); |
|
| 2 | 1001 |
} |
| 16913 | 1002 |
|
| 50768 | 1003 |
@Override |
1004 |
public Plaintext decrypt(byte contentType, ByteBuffer bb, |
|
1005 |
byte[] sequence) throws GeneralSecurityException {
|
|
1006 |
BadPaddingException reservedBPE = null; |
|
| 16913 | 1007 |
|
| 50768 | 1008 |
// sanity check length of the ciphertext |
1009 |
MAC signer = (MAC)authenticator; |
|
1010 |
int cipheredLength = bb.remaining(); |
|
1011 |
int tagLen = signer.macAlg().size; |
|
1012 |
if (tagLen != 0) {
|
|
1013 |
if (!sanityCheck(tagLen, bb.remaining())) {
|
|
1014 |
reservedBPE = new BadPaddingException( |
|
1015 |
"ciphertext sanity check failed"); |
|
1016 |
} |
|
1017 |
} |
|
1018 |
// decryption |
|
1019 |
int len = bb.remaining(); |
|
1020 |
int pos = bb.position(); |
|
1021 |
ByteBuffer dup = bb.duplicate(); |
|
| 16913 | 1022 |
try {
|
| 50768 | 1023 |
if (len != cipher.update(dup, bb)) {
|
1024 |
// catch BouncyCastle buffering error |
|
1025 |
throw new RuntimeException( |
|
1026 |
"Unexpected number of plaintext bytes"); |
|
1027 |
} |
|
1028 |
||
1029 |
if (bb.position() != dup.position()) {
|
|
1030 |
throw new RuntimeException( |
|
1031 |
"Unexpected ByteBuffer position"); |
|
1032 |
} |
|
1033 |
} catch (ShortBufferException sbe) {
|
|
1034 |
// catch BouncyCastle buffering error |
|
1035 |
throw new RuntimeException("Cipher buffering error in " +
|
|
1036 |
"JCE provider " + cipher.getProvider().getName(), sbe); |
|
1037 |
} |
|
1038 |
||
1039 |
if (SSLLogger.isOn && SSLLogger.isOn("plaintext")) {
|
|
1040 |
SSLLogger.fine( |
|
1041 |
"Padded plaintext after DECRYPTION", |
|
1042 |
bb.duplicate().position(pos)); |
|
1043 |
} |
|
1044 |
||
1045 |
// remove the block padding |
|
1046 |
int blockSize = cipher.getBlockSize(); |
|
1047 |
bb.position(pos); |
|
1048 |
try {
|
|
1049 |
removePadding(bb, tagLen, blockSize, protocolVersion); |
|
1050 |
} catch (BadPaddingException bpe) {
|
|
1051 |
if (reservedBPE == null) {
|
|
1052 |
reservedBPE = bpe; |
|
1053 |
} |
|
| 16913 | 1054 |
} |
| 50768 | 1055 |
|
1056 |
// Requires message authentication code for null, stream and |
|
1057 |
// block cipher suites. |
|
1058 |
try {
|
|
1059 |
if (tagLen != 0) {
|
|
1060 |
checkCBCMac(signer, bb, |
|
1061 |
contentType, cipheredLength, sequence); |
|
1062 |
} else {
|
|
1063 |
authenticator.increaseSequenceNumber(); |
|
1064 |
} |
|
1065 |
} catch (BadPaddingException bpe) {
|
|
1066 |
if (reservedBPE == null) {
|
|
1067 |
reservedBPE = bpe; |
|
1068 |
} |
|
1069 |
} |
|
1070 |
||
1071 |
// Is it a failover? |
|
1072 |
if (reservedBPE != null) {
|
|
1073 |
throw reservedBPE; |
|
1074 |
} |
|
1075 |
||
1076 |
return new Plaintext(contentType, |
|
1077 |
ProtocolVersion.NONE.major, ProtocolVersion.NONE.minor, |
|
1078 |
-1, -1L, bb.slice()); |
|
1079 |
} |
|
1080 |
||
1081 |
@Override |
|
1082 |
void dispose() {
|
|
1083 |
if (cipher != null) {
|
|
1084 |
try {
|
|
1085 |
cipher.doFinal(); |
|
1086 |
} catch (Exception e) {
|
|
1087 |
// swallow all types of exceptions. |
|
1088 |
} |
|
| 16913 | 1089 |
} |
| 50768 | 1090 |
} |
1091 |
||
1092 |
@Override |
|
1093 |
int estimateFragmentSize(int packetSize, int headerSize) {
|
|
1094 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
1095 |
||
1096 |
// No padding for a maximum fragment. |
|
1097 |
// |
|
1098 |
// 1 byte padding length field: 0x00 |
|
1099 |
return packetSize - headerSize - macLen - 1; |
|
| 2 | 1100 |
} |
| 50768 | 1101 |
|
1102 |
/** |
|
1103 |
* Sanity check the length of a fragment before decryption. |
|
1104 |
* |
|
1105 |
* In CBC mode, check that the fragment length is one or multiple |
|
1106 |
* times of the block size of the cipher suite, and is at least |
|
1107 |
* one (one is the smallest size of padding in CBC mode) bigger |
|
1108 |
* than the tag size of the MAC algorithm except the explicit IV |
|
1109 |
* size for TLS 1.1 or later. |
|
1110 |
* |
|
1111 |
* In non-CBC mode, check that the fragment length is not less than |
|
1112 |
* the tag size of the MAC algorithm. |
|
1113 |
* |
|
1114 |
* @return true if the length of a fragment matches above |
|
1115 |
* requirements |
|
1116 |
*/ |
|
1117 |
private boolean sanityCheck(int tagLen, int fragmentLen) {
|
|
1118 |
int blockSize = cipher.getBlockSize(); |
|
1119 |
if ((fragmentLen % blockSize) == 0) {
|
|
1120 |
int minimal = tagLen + 1; |
|
1121 |
minimal = (minimal >= blockSize) ? minimal : blockSize; |
|
1122 |
||
1123 |
return (fragmentLen >= minimal); |
|
1124 |
} |
|
1125 |
||
1126 |
return false; |
|
1127 |
} |
|
| 2 | 1128 |
} |
1129 |
} |
|
1130 |
||
| 50768 | 1131 |
private static final |
1132 |
class T10BlockWriteCipherGenerator implements WriteCipherGenerator {
|
|
1133 |
@Override |
|
1134 |
public SSLWriteCipher createCipher(SSLCipher sslCipher, |
|
1135 |
Authenticator authenticator, |
|
1136 |
ProtocolVersion protocolVersion, String algorithm, |
|
1137 |
Key key, AlgorithmParameterSpec params, |
|
1138 |
SecureRandom random) throws GeneralSecurityException {
|
|
1139 |
return new BlockWriteCipher(authenticator, |
|
1140 |
protocolVersion, algorithm, key, params, random); |
|
| 16913 | 1141 |
} |
| 7039 | 1142 |
|
| 50768 | 1143 |
static final class BlockWriteCipher extends SSLWriteCipher {
|
1144 |
private final Cipher cipher; |
|
1145 |
||
1146 |
BlockWriteCipher(Authenticator authenticator, |
|
1147 |
ProtocolVersion protocolVersion, String algorithm, |
|
1148 |
Key key, AlgorithmParameterSpec params, |
|
1149 |
SecureRandom random) throws GeneralSecurityException {
|
|
1150 |
super(authenticator, protocolVersion); |
|
1151 |
this.cipher = JsseJce.getCipher(algorithm); |
|
1152 |
cipher.init(Cipher.ENCRYPT_MODE, key, params, random); |
|
| 2 | 1153 |
} |
1154 |
||
| 50768 | 1155 |
@Override |
1156 |
public int encrypt(byte contentType, ByteBuffer bb) {
|
|
1157 |
int pos = bb.position(); |
|
1158 |
||
1159 |
// add message authentication code |
|
1160 |
MAC signer = (MAC)authenticator; |
|
1161 |
if (signer.macAlg().size != 0) {
|
|
1162 |
addMac(signer, bb, contentType); |
|
1163 |
} else {
|
|
1164 |
authenticator.increaseSequenceNumber(); |
|
1165 |
} |
|
1166 |
||
1167 |
int blockSize = cipher.getBlockSize(); |
|
1168 |
int len = addPadding(bb, blockSize); |
|
1169 |
bb.position(pos); |
|
1170 |
||
1171 |
if (SSLLogger.isOn && SSLLogger.isOn("plaintext")) {
|
|
1172 |
SSLLogger.fine( |
|
1173 |
"Padded plaintext before ENCRYPTION", |
|
1174 |
bb.duplicate()); |
|
1175 |
} |
|
1176 |
||
1177 |
ByteBuffer dup = bb.duplicate(); |
|
1178 |
try {
|
|
1179 |
if (len != cipher.update(dup, bb)) {
|
|
1180 |
// catch BouncyCastle buffering error |
|
1181 |
throw new RuntimeException( |
|
1182 |
"Unexpected number of plaintext bytes"); |
|
1183 |
} |
|
1184 |
||
1185 |
if (bb.position() != dup.position()) {
|
|
1186 |
throw new RuntimeException( |
|
1187 |
"Unexpected ByteBuffer position"); |
|
1188 |
} |
|
1189 |
} catch (ShortBufferException sbe) {
|
|
1190 |
// catch BouncyCastle buffering error |
|
1191 |
throw new RuntimeException("Cipher buffering error in " +
|
|
1192 |
"JCE provider " + cipher.getProvider().getName(), sbe); |
|
1193 |
} |
|
1194 |
||
1195 |
return len; |
|
| 2 | 1196 |
} |
1197 |
||
| 50768 | 1198 |
@Override |
1199 |
void dispose() {
|
|
1200 |
if (cipher != null) {
|
|
1201 |
try {
|
|
1202 |
cipher.doFinal(); |
|
1203 |
} catch (Exception e) {
|
|
1204 |
// swallow all types of exceptions. |
|
1205 |
} |
|
1206 |
} |
|
1207 |
} |
|
1208 |
||
1209 |
@Override |
|
1210 |
int getExplicitNonceSize() {
|
|
1211 |
return 0; |
|
| 2 | 1212 |
} |
| 50768 | 1213 |
|
1214 |
@Override |
|
1215 |
int calculateFragmentSize(int packetLimit, int headerSize) {
|
|
1216 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
1217 |
int blockSize = cipher.getBlockSize(); |
|
1218 |
int fragLen = packetLimit - headerSize; |
|
1219 |
fragLen -= (fragLen % blockSize); // cannot hold a block |
|
1220 |
// No padding for a maximum fragment. |
|
1221 |
fragLen -= 1; // 1 byte padding length field: 0x00 |
|
1222 |
fragLen -= macLen; |
|
1223 |
return fragLen; |
|
1224 |
} |
|
1225 |
||
1226 |
@Override |
|
1227 |
int calculatePacketSize(int fragmentSize, int headerSize) {
|
|
1228 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
1229 |
int blockSize = cipher.getBlockSize(); |
|
1230 |
int paddedLen = fragmentSize + macLen + 1; |
|
1231 |
if ((paddedLen % blockSize) != 0) {
|
|
1232 |
paddedLen += blockSize - 1; |
|
1233 |
paddedLen -= paddedLen % blockSize; |
|
1234 |
} |
|
1235 |
||
1236 |
return headerSize + paddedLen; |
|
1237 |
} |
|
1238 |
||
1239 |
@Override |
|
1240 |
boolean isCBCMode() {
|
|
1241 |
return true; |
|
1242 |
} |
|
| 2 | 1243 |
} |
1244 |
} |
|
1245 |
||
| 50768 | 1246 |
// For TLS 1.1 and 1.2 |
1247 |
private static final |
|
1248 |
class T11BlockReadCipherGenerator implements ReadCipherGenerator {
|
|
1249 |
@Override |
|
1250 |
public SSLReadCipher createCipher(SSLCipher sslCipher, |
|
1251 |
Authenticator authenticator, ProtocolVersion protocolVersion, |
|
1252 |
String algorithm, Key key, AlgorithmParameterSpec params, |
|
1253 |
SecureRandom random) throws GeneralSecurityException {
|
|
1254 |
return new BlockReadCipher(authenticator, protocolVersion, |
|
1255 |
sslCipher, algorithm, key, params, random); |
|
| 2 | 1256 |
} |
| 7039 | 1257 |
|
| 50768 | 1258 |
static final class BlockReadCipher extends SSLReadCipher {
|
1259 |
private final Cipher cipher; |
|
1260 |
||
1261 |
BlockReadCipher(Authenticator authenticator, |
|
1262 |
ProtocolVersion protocolVersion, |
|
1263 |
SSLCipher sslCipher, String algorithm, |
|
1264 |
Key key, AlgorithmParameterSpec params, |
|
1265 |
SecureRandom random) throws GeneralSecurityException {
|
|
1266 |
super(authenticator, protocolVersion); |
|
1267 |
this.cipher = JsseJce.getCipher(algorithm); |
|
1268 |
if (params == null) {
|
|
1269 |
params = new IvParameterSpec(new byte[sslCipher.ivSize]); |
|
| 16913 | 1270 |
} |
| 50768 | 1271 |
cipher.init(Cipher.DECRYPT_MODE, key, params, random); |
| 2 | 1272 |
} |
| 16113 | 1273 |
|
| 50768 | 1274 |
@Override |
1275 |
public Plaintext decrypt(byte contentType, ByteBuffer bb, |
|
1276 |
byte[] sequence) throws GeneralSecurityException {
|
|
1277 |
BadPaddingException reservedBPE = null; |
|
1278 |
||
1279 |
// sanity check length of the ciphertext |
|
1280 |
MAC signer = (MAC)authenticator; |
|
1281 |
int cipheredLength = bb.remaining(); |
|
1282 |
int tagLen = signer.macAlg().size; |
|
1283 |
if (tagLen != 0) {
|
|
1284 |
if (!sanityCheck(tagLen, bb.remaining())) {
|
|
1285 |
reservedBPE = new BadPaddingException( |
|
1286 |
"ciphertext sanity check failed"); |
|
1287 |
} |
|
1288 |
} |
|
1289 |
||
1290 |
// decryption |
|
1291 |
int len = bb.remaining(); |
|
1292 |
int pos = bb.position(); |
|
1293 |
ByteBuffer dup = bb.duplicate(); |
|
1294 |
try {
|
|
1295 |
if (len != cipher.update(dup, bb)) {
|
|
1296 |
// catch BouncyCastle buffering error |
|
1297 |
throw new RuntimeException( |
|
1298 |
"Unexpected number of plaintext bytes"); |
|
1299 |
} |
|
1300 |
||
1301 |
if (bb.position() != dup.position()) {
|
|
1302 |
throw new RuntimeException( |
|
1303 |
"Unexpected ByteBuffer position"); |
|
1304 |
} |
|
1305 |
} catch (ShortBufferException sbe) {
|
|
1306 |
// catch BouncyCastle buffering error |
|
1307 |
throw new RuntimeException("Cipher buffering error in " +
|
|
1308 |
"JCE provider " + cipher.getProvider().getName(), sbe); |
|
1309 |
} |
|
1310 |
||
1311 |
if (SSLLogger.isOn && SSLLogger.isOn("plaintext")) {
|
|
1312 |
SSLLogger.fine( |
|
1313 |
"Padded plaintext after DECRYPTION", |
|
1314 |
bb.duplicate().position(pos)); |
|
1315 |
} |
|
| 7039 | 1316 |
|
| 50768 | 1317 |
// Ignore the explicit nonce. |
1318 |
bb.position(pos + cipher.getBlockSize()); |
|
1319 |
pos = bb.position(); |
|
1320 |
||
1321 |
// remove the block padding |
|
1322 |
int blockSize = cipher.getBlockSize(); |
|
1323 |
bb.position(pos); |
|
1324 |
try {
|
|
1325 |
removePadding(bb, tagLen, blockSize, protocolVersion); |
|
1326 |
} catch (BadPaddingException bpe) {
|
|
1327 |
if (reservedBPE == null) {
|
|
1328 |
reservedBPE = bpe; |
|
1329 |
} |
|
1330 |
} |
|
1331 |
||
1332 |
// Requires message authentication code for null, stream and |
|
1333 |
// block cipher suites. |
|
1334 |
try {
|
|
1335 |
if (tagLen != 0) {
|
|
1336 |
checkCBCMac(signer, bb, |
|
1337 |
contentType, cipheredLength, sequence); |
|
1338 |
} else {
|
|
1339 |
authenticator.increaseSequenceNumber(); |
|
1340 |
} |
|
1341 |
} catch (BadPaddingException bpe) {
|
|
1342 |
if (reservedBPE == null) {
|
|
1343 |
reservedBPE = bpe; |
|
1344 |
} |
|
1345 |
} |
|
1346 |
||
1347 |
// Is it a failover? |
|
1348 |
if (reservedBPE != null) {
|
|
1349 |
throw reservedBPE; |
|
1350 |
} |
|
1351 |
||
1352 |
return new Plaintext(contentType, |
|
1353 |
ProtocolVersion.NONE.major, ProtocolVersion.NONE.minor, |
|
1354 |
-1, -1L, bb.slice()); |
|
1355 |
} |
|
1356 |
||
1357 |
@Override |
|
1358 |
void dispose() {
|
|
1359 |
if (cipher != null) {
|
|
1360 |
try {
|
|
1361 |
cipher.doFinal(); |
|
1362 |
} catch (Exception e) {
|
|
1363 |
// swallow all types of exceptions. |
|
| 7039 | 1364 |
} |
1365 |
} |
|
| 2 | 1366 |
} |
| 50768 | 1367 |
|
1368 |
@Override |
|
1369 |
int estimateFragmentSize(int packetSize, int headerSize) {
|
|
1370 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
1371 |
||
1372 |
// No padding for a maximum fragment. |
|
1373 |
// |
|
1374 |
// 1 byte padding length field: 0x00 |
|
1375 |
int nonceSize = cipher.getBlockSize(); |
|
1376 |
return packetSize - headerSize - nonceSize - macLen - 1; |
|
1377 |
} |
|
1378 |
||
1379 |
/** |
|
1380 |
* Sanity check the length of a fragment before decryption. |
|
1381 |
* |
|
1382 |
* In CBC mode, check that the fragment length is one or multiple |
|
1383 |
* times of the block size of the cipher suite, and is at least |
|
1384 |
* one (one is the smallest size of padding in CBC mode) bigger |
|
1385 |
* than the tag size of the MAC algorithm except the explicit IV |
|
1386 |
* size for TLS 1.1 or later. |
|
1387 |
* |
|
1388 |
* In non-CBC mode, check that the fragment length is not less than |
|
1389 |
* the tag size of the MAC algorithm. |
|
1390 |
* |
|
1391 |
* @return true if the length of a fragment matches above |
|
1392 |
* requirements |
|
1393 |
*/ |
|
1394 |
private boolean sanityCheck(int tagLen, int fragmentLen) {
|
|
1395 |
int blockSize = cipher.getBlockSize(); |
|
1396 |
if ((fragmentLen % blockSize) == 0) {
|
|
1397 |
int minimal = tagLen + 1; |
|
1398 |
minimal = (minimal >= blockSize) ? minimal : blockSize; |
|
1399 |
minimal += blockSize; |
|
1400 |
||
1401 |
return (fragmentLen >= minimal); |
|
1402 |
} |
|
1403 |
||
1404 |
return false; |
|
1405 |
} |
|
| 2 | 1406 |
} |
1407 |
} |
|
1408 |
||
| 50768 | 1409 |
// For TLS 1.1 and 1.2 |
1410 |
private static final |
|
1411 |
class T11BlockWriteCipherGenerator implements WriteCipherGenerator {
|
|
1412 |
@Override |
|
1413 |
public SSLWriteCipher createCipher(SSLCipher sslCipher, |
|
1414 |
Authenticator authenticator, ProtocolVersion protocolVersion, |
|
1415 |
String algorithm, Key key, AlgorithmParameterSpec params, |
|
1416 |
SecureRandom random) throws GeneralSecurityException {
|
|
1417 |
return new BlockWriteCipher(authenticator, protocolVersion, |
|
1418 |
sslCipher, algorithm, key, params, random); |
|
| 2 | 1419 |
} |
1420 |
||
| 50768 | 1421 |
static final class BlockWriteCipher extends SSLWriteCipher {
|
1422 |
private final Cipher cipher; |
|
1423 |
private final SecureRandom random; |
|
1424 |
||
1425 |
BlockWriteCipher(Authenticator authenticator, |
|
1426 |
ProtocolVersion protocolVersion, |
|
1427 |
SSLCipher sslCipher, String algorithm, |
|
1428 |
Key key, AlgorithmParameterSpec params, |
|
1429 |
SecureRandom random) throws GeneralSecurityException {
|
|
1430 |
super(authenticator, protocolVersion); |
|
1431 |
this.cipher = JsseJce.getCipher(algorithm); |
|
1432 |
this.random = random; |
|
1433 |
if (params == null) {
|
|
1434 |
params = new IvParameterSpec(new byte[sslCipher.ivSize]); |
|
1435 |
} |
|
1436 |
cipher.init(Cipher.ENCRYPT_MODE, key, params, random); |
|
1437 |
} |
|
1438 |
||
1439 |
@Override |
|
1440 |
public int encrypt(byte contentType, ByteBuffer bb) {
|
|
1441 |
// To be unique and aware of overflow-wrap, sequence number |
|
1442 |
// is used as the nonce_explicit of block cipher suites. |
|
1443 |
int pos = bb.position(); |
|
1444 |
||
1445 |
// add message authentication code |
|
1446 |
MAC signer = (MAC)authenticator; |
|
1447 |
if (signer.macAlg().size != 0) {
|
|
1448 |
addMac(signer, bb, contentType); |
|
1449 |
} else {
|
|
1450 |
authenticator.increaseSequenceNumber(); |
|
1451 |
} |
|
1452 |
||
1453 |
// DON'T WORRY, the nonce spaces are considered already. |
|
1454 |
byte[] nonce = new byte[cipher.getBlockSize()]; |
|
1455 |
random.nextBytes(nonce); |
|
1456 |
pos = pos - nonce.length; |
|
1457 |
bb.position(pos); |
|
1458 |
bb.put(nonce); |
|
1459 |
bb.position(pos); |
|
1460 |
||
1461 |
int blockSize = cipher.getBlockSize(); |
|
1462 |
int len = addPadding(bb, blockSize); |
|
1463 |
bb.position(pos); |
|
1464 |
||
1465 |
if (SSLLogger.isOn && SSLLogger.isOn("plaintext")) {
|
|
1466 |
SSLLogger.fine( |
|
1467 |
"Padded plaintext before ENCRYPTION", |
|
1468 |
bb.duplicate()); |
|
1469 |
} |
|
1470 |
||
1471 |
ByteBuffer dup = bb.duplicate(); |
|
| 16913 | 1472 |
try {
|
| 50768 | 1473 |
if (len != cipher.update(dup, bb)) {
|
1474 |
// catch BouncyCastle buffering error |
|
1475 |
throw new RuntimeException( |
|
1476 |
"Unexpected number of plaintext bytes"); |
|
1477 |
} |
|
1478 |
||
1479 |
if (bb.position() != dup.position()) {
|
|
1480 |
throw new RuntimeException( |
|
1481 |
"Unexpected ByteBuffer position"); |
|
1482 |
} |
|
1483 |
} catch (ShortBufferException sbe) {
|
|
1484 |
// catch BouncyCastle buffering error |
|
1485 |
throw new RuntimeException("Cipher buffering error in " +
|
|
1486 |
"JCE provider " + cipher.getProvider().getName(), sbe); |
|
1487 |
} |
|
1488 |
||
1489 |
return len; |
|
1490 |
} |
|
1491 |
||
1492 |
@Override |
|
1493 |
void dispose() {
|
|
1494 |
if (cipher != null) {
|
|
1495 |
try {
|
|
1496 |
cipher.doFinal(); |
|
1497 |
} catch (Exception e) {
|
|
1498 |
// swallow all types of exceptions. |
|
1499 |
} |
|
1500 |
} |
|
1501 |
} |
|
1502 |
||
1503 |
@Override |
|
1504 |
int getExplicitNonceSize() {
|
|
1505 |
return cipher.getBlockSize(); |
|
1506 |
} |
|
1507 |
||
1508 |
@Override |
|
1509 |
int calculateFragmentSize(int packetLimit, int headerSize) {
|
|
1510 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
1511 |
int blockSize = cipher.getBlockSize(); |
|
1512 |
int fragLen = packetLimit - headerSize - blockSize; |
|
1513 |
fragLen -= (fragLen % blockSize); // cannot hold a block |
|
1514 |
// No padding for a maximum fragment. |
|
1515 |
fragLen -= 1; // 1 byte padding length field: 0x00 |
|
1516 |
fragLen -= macLen; |
|
1517 |
return fragLen; |
|
1518 |
} |
|
1519 |
||
1520 |
@Override |
|
1521 |
int calculatePacketSize(int fragmentSize, int headerSize) {
|
|
1522 |
int macLen = ((MAC)authenticator).macAlg().size; |
|
1523 |
int blockSize = cipher.getBlockSize(); |
|
1524 |
int paddedLen = fragmentSize + macLen + 1; |
|
1525 |
if ((paddedLen % blockSize) != 0) {
|
|
1526 |
paddedLen += blockSize - 1; |
|
1527 |
paddedLen -= paddedLen % blockSize; |
|
1528 |
} |
|
1529 |
||
1530 |
return headerSize + blockSize + paddedLen; |
|
1531 |
} |
|
1532 |
||
1533 |
@Override |
|
1534 |
boolean isCBCMode() {
|
|
1535 |
return true; |
|
1536 |
} |
|
1537 |
} |
|
1538 |
} |
|
1539 |
||
1540 |
private static final |
|
1541 |
class T12GcmReadCipherGenerator implements ReadCipherGenerator {
|
|
1542 |
@Override |
|
1543 |
public SSLReadCipher createCipher(SSLCipher sslCipher, |
|
1544 |
Authenticator authenticator, |
|
1545 |
ProtocolVersion protocolVersion, String algorithm, |
|
1546 |
Key key, AlgorithmParameterSpec params, |
|
1547 |
SecureRandom random) throws GeneralSecurityException {
|
|
1548 |
return new GcmReadCipher(authenticator, protocolVersion, sslCipher, |
|
1549 |
algorithm, key, params, random); |
|
1550 |
} |
|
1551 |
||
1552 |
static final class GcmReadCipher extends SSLReadCipher {
|
|
1553 |
private final Cipher cipher; |
|
1554 |
private final int tagSize; |
|
1555 |
private final Key key; |
|
1556 |
private final byte[] fixedIv; |
|
1557 |
private final int recordIvSize; |
|
1558 |
private final SecureRandom random; |
|
1559 |
||
1560 |
GcmReadCipher(Authenticator authenticator, |
|
1561 |
ProtocolVersion protocolVersion, |
|
1562 |
SSLCipher sslCipher, String algorithm, |
|
1563 |
Key key, AlgorithmParameterSpec params, |
|
1564 |
SecureRandom random) throws GeneralSecurityException {
|
|
1565 |
super(authenticator, protocolVersion); |
|
1566 |
this.cipher = JsseJce.getCipher(algorithm); |
|
1567 |
this.tagSize = sslCipher.tagSize; |
|
1568 |
this.key = key; |
|
1569 |
this.fixedIv = ((IvParameterSpec)params).getIV(); |
|
1570 |
this.recordIvSize = sslCipher.ivSize - sslCipher.fixedIvSize; |
|
1571 |
this.random = random; |
|
1572 |
||
1573 |
// DON'T initialize the cipher for AEAD! |
|
1574 |
} |
|
1575 |
||
1576 |
@Override |
|
1577 |
public Plaintext decrypt(byte contentType, ByteBuffer bb, |
|
1578 |
byte[] sequence) throws GeneralSecurityException {
|
|
1579 |
if (bb.remaining() < (recordIvSize + tagSize)) {
|
|
1580 |
throw new BadPaddingException( |
|
1581 |
"Insufficient buffer remaining for AEAD cipher " + |
|
1582 |
"fragment (" + bb.remaining() + "). Needs to be " +
|
|
1583 |
"more than or equal to IV size (" + recordIvSize +
|
|
1584 |
") + tag size (" + tagSize + ")");
|
|
1585 |
} |
|
1586 |
||
1587 |
// initialize the AEAD cipher for the unique IV |
|
1588 |
byte[] iv = Arrays.copyOf(fixedIv, |
|
1589 |
fixedIv.length + recordIvSize); |
|
1590 |
bb.get(iv, fixedIv.length, recordIvSize); |
|
1591 |
GCMParameterSpec spec = new GCMParameterSpec(tagSize * 8, iv); |
|
1592 |
try {
|
|
1593 |
cipher.init(Cipher.DECRYPT_MODE, key, spec, random); |
|
1594 |
} catch (InvalidKeyException | |
|
1595 |
InvalidAlgorithmParameterException ikae) {
|
|
1596 |
// unlikely to happen |
|
1597 |
throw new RuntimeException( |
|
1598 |
"invalid key or spec in GCM mode", ikae); |
|
1599 |
} |
|
1600 |
||
1601 |
// update the additional authentication data |
|
1602 |
byte[] aad = authenticator.acquireAuthenticationBytes( |
|
1603 |
contentType, bb.remaining() - tagSize, |
|
1604 |
sequence); |
|
1605 |
cipher.updateAAD(aad); |
|
1606 |
||
1607 |
// DON'T decrypt the nonce_explicit for AEAD mode. The buffer |
|
1608 |
// position has moved out of the nonce_explicit range. |
|
1609 |
int len, pos = bb.position(); |
|
1610 |
ByteBuffer dup = bb.duplicate(); |
|
1611 |
try {
|
|
1612 |
len = cipher.doFinal(dup, bb); |
|
| 16913 | 1613 |
} catch (IllegalBlockSizeException ibse) {
|
1614 |
// unlikely to happen |
|
1615 |
throw new RuntimeException( |
|
1616 |
"Cipher error in AEAD mode \"" + ibse.getMessage() + |
|
1617 |
" \"in JCE provider " + cipher.getProvider().getName()); |
|
| 50768 | 1618 |
} catch (ShortBufferException sbe) {
|
1619 |
// catch BouncyCastle buffering error |
|
1620 |
throw new RuntimeException("Cipher buffering error in " +
|
|
1621 |
"JCE provider " + cipher.getProvider().getName(), sbe); |
|
| 16913 | 1622 |
} |
| 50768 | 1623 |
// reset the limit to the end of the decrypted data |
1624 |
bb.position(pos); |
|
1625 |
bb.limit(pos + len); |
|
1626 |
||
1627 |
if (SSLLogger.isOn && SSLLogger.isOn("plaintext")) {
|
|
1628 |
SSLLogger.fine( |
|
1629 |
"Plaintext after DECRYPTION", bb.duplicate()); |
|
1630 |
} |
|
1631 |
||
1632 |
return new Plaintext(contentType, |
|
1633 |
ProtocolVersion.NONE.major, ProtocolVersion.NONE.minor, |
|
1634 |
-1, -1L, bb.slice()); |
|
1635 |
} |
|
1636 |
||
1637 |
@Override |
|
1638 |
void dispose() {
|
|
1639 |
if (cipher != null) {
|
|
1640 |
try {
|
|
1641 |
cipher.doFinal(); |
|
1642 |
} catch (Exception e) {
|
|
1643 |
// swallow all types of exceptions. |
|
1644 |
} |
|
1645 |
} |
|
1646 |
} |
|
1647 |
||
1648 |
@Override |
|
1649 |
int estimateFragmentSize(int packetSize, int headerSize) {
|
|
1650 |
return packetSize - headerSize - recordIvSize - tagSize; |
|
1651 |
} |
|
1652 |
} |
|
1653 |
} |
|
1654 |
||
1655 |
private static final |
|
1656 |
class T12GcmWriteCipherGenerator implements WriteCipherGenerator {
|
|
1657 |
@Override |
|
1658 |
public SSLWriteCipher createCipher(SSLCipher sslCipher, |
|
1659 |
Authenticator authenticator, |
|
1660 |
ProtocolVersion protocolVersion, String algorithm, |
|
1661 |
Key key, AlgorithmParameterSpec params, |
|
1662 |
SecureRandom random) throws GeneralSecurityException {
|
|
1663 |
return new GcmWriteCipher(authenticator, protocolVersion, sslCipher, |
|
1664 |
algorithm, key, params, random); |
|
1665 |
} |
|
1666 |
||
1667 |
private static final class GcmWriteCipher extends SSLWriteCipher {
|
|
1668 |
private final Cipher cipher; |
|
1669 |
private final int tagSize; |
|
1670 |
private final Key key; |
|
1671 |
private final byte[] fixedIv; |
|
1672 |
private final int recordIvSize; |
|
1673 |
private final SecureRandom random; |
|
1674 |
||
1675 |
GcmWriteCipher(Authenticator authenticator, |
|
1676 |
ProtocolVersion protocolVersion, |
|
1677 |
SSLCipher sslCipher, String algorithm, |
|
1678 |
Key key, AlgorithmParameterSpec params, |
|
1679 |
SecureRandom random) throws GeneralSecurityException {
|
|
1680 |
super(authenticator, protocolVersion); |
|
1681 |
this.cipher = JsseJce.getCipher(algorithm); |
|
1682 |
this.tagSize = sslCipher.tagSize; |
|
1683 |
this.key = key; |
|
1684 |
this.fixedIv = ((IvParameterSpec)params).getIV(); |
|
1685 |
this.recordIvSize = sslCipher.ivSize - sslCipher.fixedIvSize; |
|
1686 |
this.random = random; |
|
1687 |
||
1688 |
// DON'T initialize the cipher for AEAD! |
|
1689 |
} |
|
1690 |
||
1691 |
@Override |
|
1692 |
public int encrypt(byte contentType, |
|
1693 |
ByteBuffer bb) {
|
|
1694 |
// To be unique and aware of overflow-wrap, sequence number |
|
1695 |
// is used as the nonce_explicit of AEAD cipher suites. |
|
1696 |
byte[] nonce = authenticator.sequenceNumber(); |
|
1697 |
||
1698 |
// initialize the AEAD cipher for the unique IV |
|
1699 |
byte[] iv = Arrays.copyOf(fixedIv, |
|
1700 |
fixedIv.length + nonce.length); |
|
1701 |
System.arraycopy(nonce, 0, iv, fixedIv.length, nonce.length); |
|
1702 |
||
1703 |
GCMParameterSpec spec = new GCMParameterSpec(tagSize * 8, iv); |
|
1704 |
try {
|
|
1705 |
cipher.init(Cipher.ENCRYPT_MODE, key, spec, random); |
|
1706 |
} catch (InvalidKeyException | |
|
1707 |
InvalidAlgorithmParameterException ikae) {
|
|
1708 |
// unlikely to happen |
|
1709 |
throw new RuntimeException( |
|
1710 |
"invalid key or spec in GCM mode", ikae); |
|
1711 |
} |
|
1712 |
||
1713 |
// Update the additional authentication data, using the |
|
1714 |
// implicit sequence number of the authenticator. |
|
1715 |
byte[] aad = authenticator.acquireAuthenticationBytes( |
|
1716 |
contentType, bb.remaining(), null); |
|
1717 |
cipher.updateAAD(aad); |
|
1718 |
||
1719 |
// DON'T WORRY, the nonce spaces are considered already. |
|
1720 |
bb.position(bb.position() - nonce.length); |
|
1721 |
bb.put(nonce); |
|
1722 |
||
1723 |
// DON'T encrypt the nonce for AEAD mode. |
|
1724 |
int len, pos = bb.position(); |
|
1725 |
if (SSLLogger.isOn && SSLLogger.isOn("plaintext")) {
|
|
1726 |
SSLLogger.fine( |
|
1727 |
"Plaintext before ENCRYPTION", |
|
1728 |
bb.duplicate()); |
|
1729 |
} |
|
1730 |
||
1731 |
ByteBuffer dup = bb.duplicate(); |
|
1732 |
int outputSize = cipher.getOutputSize(dup.remaining()); |
|
1733 |
if (outputSize > bb.remaining()) {
|
|
1734 |
// Need to expand the limit of the output buffer for |
|
1735 |
// the authentication tag. |
|
1736 |
// |
|
1737 |
// DON'T worry about the buffer's capacity, we have |
|
1738 |
// reserved space for the authentication tag. |
|
1739 |
bb.limit(pos + outputSize); |
|
1740 |
} |
|
1741 |
||
1742 |
try {
|
|
1743 |
len = cipher.doFinal(dup, bb); |
|
1744 |
} catch (IllegalBlockSizeException | |
|
1745 |
BadPaddingException | ShortBufferException ibse) {
|
|
1746 |
// unlikely to happen |
|
1747 |
throw new RuntimeException( |
|
1748 |
"Cipher error in AEAD mode in JCE provider " + |
|
1749 |
cipher.getProvider().getName(), ibse); |
|
1750 |
} |
|
1751 |
||
1752 |
if (len != outputSize) {
|
|
1753 |
throw new RuntimeException( |
|
1754 |
"Cipher buffering error in JCE provider " + |
|
1755 |
cipher.getProvider().getName()); |
|
1756 |
} |
|
1757 |
||
1758 |
return len + nonce.length; |
|
1759 |
} |
|
1760 |
||
1761 |
@Override |
|
1762 |
void dispose() {
|
|
1763 |
if (cipher != null) {
|
|
1764 |
try {
|
|
1765 |
cipher.doFinal(); |
|
1766 |
} catch (Exception e) {
|
|
1767 |
// swallow all types of exceptions. |
|
1768 |
} |
|
1769 |
} |
|
1770 |
} |
|
1771 |
||
1772 |
@Override |
|
1773 |
int getExplicitNonceSize() {
|
|
1774 |
return recordIvSize; |
|
1775 |
} |
|
1776 |
||
1777 |
@Override |
|
1778 |
int calculateFragmentSize(int packetLimit, int headerSize) {
|
|
1779 |
return packetLimit - headerSize - recordIvSize - tagSize; |
|
1780 |
} |
|
1781 |
||
1782 |
@Override |
|
1783 |
int calculatePacketSize(int fragmentSize, int headerSize) {
|
|
1784 |
return fragmentSize + headerSize + recordIvSize + tagSize; |
|
1785 |
} |
|
1786 |
} |
|
1787 |
} |
|
1788 |
||
1789 |
private static final |
|
1790 |
class T13GcmReadCipherGenerator implements ReadCipherGenerator {
|
|
1791 |
||
1792 |
@Override |
|
1793 |
public SSLReadCipher createCipher(SSLCipher sslCipher, |
|
1794 |
Authenticator authenticator, ProtocolVersion protocolVersion, |
|
1795 |
String algorithm, Key key, AlgorithmParameterSpec params, |
|
1796 |
SecureRandom random) throws GeneralSecurityException {
|
|
1797 |
return new GcmReadCipher(authenticator, protocolVersion, sslCipher, |
|
1798 |
algorithm, key, params, random); |
|
1799 |
} |
|
1800 |
||
1801 |
static final class GcmReadCipher extends SSLReadCipher {
|
|
1802 |
private final Cipher cipher; |
|
1803 |
private final int tagSize; |
|
1804 |
private final Key key; |
|
1805 |
private final byte[] iv; |
|
1806 |
private final SecureRandom random; |
|
1807 |
||
1808 |
GcmReadCipher(Authenticator authenticator, |
|
1809 |
ProtocolVersion protocolVersion, |
|
1810 |
SSLCipher sslCipher, String algorithm, |
|
1811 |
Key key, AlgorithmParameterSpec params, |
|
1812 |
SecureRandom random) throws GeneralSecurityException {
|
|
1813 |
super(authenticator, protocolVersion); |
|
1814 |
this.cipher = JsseJce.getCipher(algorithm); |
|
1815 |
this.tagSize = sslCipher.tagSize; |
|
1816 |
this.key = key; |
|
1817 |
this.iv = ((IvParameterSpec)params).getIV(); |
|
1818 |
this.random = random; |
|
1819 |
||
1820 |
keyLimitCountdown = cipherLimits.getOrDefault( |
|
1821 |
algorithm.toUpperCase() + ":" + tag[0], 0L); |
|
1822 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl")) {
|
|
1823 |
SSLLogger.fine("KeyLimit read side: algorithm = " +
|
|
1824 |
algorithm.toUpperCase() + ":" + tag[0] + |
|
1825 |
"\ncountdown value = " + keyLimitCountdown); |
|
1826 |
} |
|
1827 |
if (keyLimitCountdown > 0) {
|
|
1828 |
keyLimitEnabled = true; |
|
1829 |
} |
|
1830 |
// DON'T initialize the cipher for AEAD! |
|
1831 |
} |
|
1832 |
||
1833 |
@Override |
|
1834 |
public Plaintext decrypt(byte contentType, ByteBuffer bb, |
|
1835 |
byte[] sequence) throws GeneralSecurityException {
|
|
1836 |
// An implementation may receive an unencrypted record of type |
|
1837 |
// change_cipher_spec consisting of the single byte value 0x01 |
|
1838 |
// at any time after the first ClientHello message has been |
|
1839 |
// sent or received and before the peer's Finished message has |
|
1840 |
// been received and MUST simply drop it without further |
|
1841 |
// processing. |
|
1842 |
if (contentType == ContentType.CHANGE_CIPHER_SPEC.id) {
|
|
1843 |
return new Plaintext(contentType, |
|
1844 |
ProtocolVersion.NONE.major, ProtocolVersion.NONE.minor, |
|
1845 |
-1, -1L, bb.slice()); |
|
1846 |
} |
|
1847 |
||
1848 |
if (bb.remaining() <= tagSize) {
|
|
1849 |
throw new BadPaddingException( |
|
1850 |
"Insufficient buffer remaining for AEAD cipher " + |
|
1851 |
"fragment (" + bb.remaining() + "). Needs to be " +
|
|
1852 |
"more than tag size (" + tagSize + ")");
|
|
1853 |
} |
|
1854 |
||
1855 |
byte[] sn = sequence; |
|
1856 |
if (sn == null) {
|
|
1857 |
sn = authenticator.sequenceNumber(); |
|
1858 |
} |
|
1859 |
byte[] nonce = iv.clone(); |
|
1860 |
int offset = nonce.length - sn.length; |
|
1861 |
for (int i = 0; i < sn.length; i++) {
|
|
1862 |
nonce[offset + i] ^= sn[i]; |
|
1863 |
} |
|
1864 |
||
1865 |
// initialize the AEAD cipher for the unique IV |
|
1866 |
GCMParameterSpec spec = |
|
1867 |
new GCMParameterSpec(tagSize * 8, nonce); |
|
1868 |
try {
|
|
1869 |
cipher.init(Cipher.DECRYPT_MODE, key, spec, random); |
|
1870 |
} catch (InvalidKeyException | |
|
1871 |
InvalidAlgorithmParameterException ikae) {
|
|
1872 |
// unlikely to happen |
|
1873 |
throw new RuntimeException( |
|
1874 |
"invalid key or spec in GCM mode", ikae); |
|
1875 |
} |
|
1876 |
||
1877 |
// Update the additional authentication data, using the |
|
1878 |
// implicit sequence number of the authenticator. |
|
1879 |
byte[] aad = authenticator.acquireAuthenticationBytes( |
|
1880 |
contentType, bb.remaining(), sn); |
|
1881 |
cipher.updateAAD(aad); |
|
1882 |
||
1883 |
int len, pos = bb.position(); |
|
1884 |
ByteBuffer dup = bb.duplicate(); |
|
1885 |
try {
|
|
1886 |
len = cipher.doFinal(dup, bb); |
|
1887 |
} catch (IllegalBlockSizeException ibse) {
|
|
1888 |
// unlikely to happen |
|
1889 |
throw new RuntimeException( |
|
1890 |
"Cipher error in AEAD mode \"" + ibse.getMessage() + |
|
1891 |
" \"in JCE provider " + cipher.getProvider().getName()); |
|
1892 |
} catch (ShortBufferException sbe) {
|
|
| 16913 | 1893 |
// catch BouncyCastle buffering error |
| 50768 | 1894 |
throw new RuntimeException("Cipher buffering error in " +
|
1895 |
"JCE provider " + cipher.getProvider().getName(), sbe); |
|
1896 |
} |
|
1897 |
// reset the limit to the end of the decrypted data |
|
1898 |
bb.position(pos); |
|
1899 |
bb.limit(pos + len); |
|
1900 |
||
1901 |
// remove inner plaintext padding |
|
1902 |
int i = bb.limit() - 1; |
|
1903 |
for (; i > 0 && bb.get(i) == 0; i--) {
|
|
1904 |
// blank |
|
1905 |
} |
|
1906 |
if (i < (pos + 1)) {
|
|
1907 |
throw new BadPaddingException( |
|
1908 |
"Incorrect inner plaintext: no content type"); |
|
1909 |
} |
|
1910 |
contentType = bb.get(i); |
|
1911 |
bb.limit(i); |
|
1912 |
||
1913 |
if (SSLLogger.isOn && SSLLogger.isOn("plaintext")) {
|
|
1914 |
SSLLogger.fine( |
|
1915 |
"Plaintext after DECRYPTION", bb.duplicate()); |
|
1916 |
} |
|
1917 |
if (keyLimitEnabled) {
|
|
1918 |
keyLimitCountdown -= len; |
|
1919 |
} |
|
1920 |
||
1921 |
return new Plaintext(contentType, |
|
1922 |
ProtocolVersion.NONE.major, ProtocolVersion.NONE.minor, |
|
1923 |
-1, -1L, bb.slice()); |
|
1924 |
} |
|
1925 |
||
1926 |
@Override |
|
1927 |
void dispose() {
|
|
1928 |
if (cipher != null) {
|
|
1929 |
try {
|
|
1930 |
cipher.doFinal(); |
|
1931 |
} catch (Exception e) {
|
|
1932 |
// swallow all types of exceptions. |
|
1933 |
} |
|
| 16913 | 1934 |
} |
| 2 | 1935 |
} |
1936 |
||
| 50768 | 1937 |
@Override |
1938 |
int estimateFragmentSize(int packetSize, int headerSize) {
|
|
1939 |
return packetSize - headerSize - tagSize; |
|
1940 |
} |
|
1941 |
} |
|
1942 |
} |
|
| 16913 | 1943 |
|
| 50768 | 1944 |
private static final |
1945 |
class T13GcmWriteCipherGenerator implements WriteCipherGenerator {
|
|
1946 |
@Override |
|
1947 |
public SSLWriteCipher createCipher(SSLCipher sslCipher, |
|
1948 |
Authenticator authenticator, ProtocolVersion protocolVersion, |
|
1949 |
String algorithm, Key key, AlgorithmParameterSpec params, |
|
1950 |
SecureRandom random) throws GeneralSecurityException {
|
|
1951 |
return new GcmWriteCipher(authenticator, protocolVersion, sslCipher, |
|
1952 |
algorithm, key, params, random); |
|
1953 |
} |
|
1954 |
||
1955 |
private static final class GcmWriteCipher extends SSLWriteCipher {
|
|
1956 |
private final Cipher cipher; |
|
1957 |
private final int tagSize; |
|
1958 |
private final Key key; |
|
1959 |
private final byte[] iv; |
|
1960 |
private final SecureRandom random; |
|
| 2 | 1961 |
|
| 50768 | 1962 |
GcmWriteCipher(Authenticator authenticator, |
1963 |
ProtocolVersion protocolVersion, |
|
1964 |
SSLCipher sslCipher, String algorithm, |
|
1965 |
Key key, AlgorithmParameterSpec params, |
|
1966 |
SecureRandom random) throws GeneralSecurityException {
|
|
1967 |
super(authenticator, protocolVersion); |
|
1968 |
this.cipher = JsseJce.getCipher(algorithm); |
|
1969 |
this.tagSize = sslCipher.tagSize; |
|
1970 |
this.key = key; |
|
1971 |
this.iv = ((IvParameterSpec)params).getIV(); |
|
1972 |
this.random = random; |
|
| 2 | 1973 |
|
| 50768 | 1974 |
keyLimitCountdown = cipherLimits.getOrDefault( |
1975 |
algorithm.toUpperCase() + ":" + tag[0], 0L); |
|
1976 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl")) {
|
|
1977 |
SSLLogger.fine("KeyLimit write side: algorithm = "
|
|
1978 |
+ algorithm.toUpperCase() + ":" + tag[0] + |
|
1979 |
"\ncountdown value = " + keyLimitCountdown); |
|
1980 |
} |
|
1981 |
if (keyLimitCountdown > 0) {
|
|
1982 |
keyLimitEnabled = true; |
|
1983 |
} |
|
1984 |
||
1985 |
// DON'T initialize the cipher for AEAD! |
|
| 2 | 1986 |
} |
1987 |
||
| 50768 | 1988 |
@Override |
1989 |
public int encrypt(byte contentType, |
|
1990 |
ByteBuffer bb) {
|
|
1991 |
byte[] sn = authenticator.sequenceNumber(); |
|
1992 |
byte[] nonce = iv.clone(); |
|
1993 |
int offset = nonce.length - sn.length; |
|
1994 |
for (int i = 0; i < sn.length; i++) {
|
|
1995 |
nonce[offset + i] ^= sn[i]; |
|
1996 |
} |
|
1997 |
||
1998 |
// initialize the AEAD cipher for the unique IV |
|
1999 |
GCMParameterSpec spec = |
|
2000 |
new GCMParameterSpec(tagSize * 8, nonce); |
|
2001 |
try {
|
|
2002 |
cipher.init(Cipher.ENCRYPT_MODE, key, spec, random); |
|
2003 |
} catch (InvalidKeyException | |
|
2004 |
InvalidAlgorithmParameterException ikae) {
|
|
2005 |
// unlikely to happen |
|
2006 |
throw new RuntimeException( |
|
2007 |
"invalid key or spec in GCM mode", ikae); |
|
2008 |
} |
|
2009 |
||
2010 |
// Update the additional authentication data, using the |
|
2011 |
// implicit sequence number of the authenticator. |
|
2012 |
int outputSize = cipher.getOutputSize(bb.remaining()); |
|
2013 |
byte[] aad = authenticator.acquireAuthenticationBytes( |
|
2014 |
contentType, outputSize, sn); |
|
2015 |
cipher.updateAAD(aad); |
|
2016 |
||
2017 |
int len, pos = bb.position(); |
|
2018 |
if (SSLLogger.isOn && SSLLogger.isOn("plaintext")) {
|
|
2019 |
SSLLogger.fine( |
|
2020 |
"Plaintext before ENCRYPTION", |
|
2021 |
bb.duplicate()); |
|
2022 |
} |
|
| 7039 | 2023 |
|
| 50768 | 2024 |
ByteBuffer dup = bb.duplicate(); |
2025 |
if (outputSize > bb.remaining()) {
|
|
2026 |
// Need to expand the limit of the output buffer for |
|
2027 |
// the authentication tag. |
|
2028 |
// |
|
2029 |
// DON'T worry about the buffer's capacity, we have |
|
2030 |
// reserved space for the authentication tag. |
|
2031 |
bb.limit(pos + outputSize); |
|
2032 |
} |
|
2033 |
||
2034 |
try {
|
|
2035 |
len = cipher.doFinal(dup, bb); |
|
2036 |
} catch (IllegalBlockSizeException | |
|
2037 |
BadPaddingException | ShortBufferException ibse) {
|
|
2038 |
// unlikely to happen |
|
2039 |
throw new RuntimeException( |
|
2040 |
"Cipher error in AEAD mode in JCE provider " + |
|
2041 |
cipher.getProvider().getName(), ibse); |
|
2042 |
} |
|
2043 |
||
2044 |
if (len != outputSize) {
|
|
2045 |
throw new RuntimeException( |
|
2046 |
"Cipher buffering error in JCE provider " + |
|
2047 |
cipher.getProvider().getName()); |
|
2048 |
} |
|
2049 |
||
2050 |
if (keyLimitEnabled) {
|
|
2051 |
keyLimitCountdown -= len; |
|
2052 |
} |
|
2053 |
return len; |
|
2054 |
} |
|
2055 |
||
2056 |
@Override |
|
2057 |
void dispose() {
|
|
2058 |
if (cipher != null) {
|
|
2059 |
try {
|
|
2060 |
cipher.doFinal(); |
|
2061 |
} catch (Exception e) {
|
|
2062 |
// swallow all types of exceptions. |
|
| 7039 | 2063 |
} |
2064 |
} |
|
| 2 | 2065 |
} |
| 50768 | 2066 |
|
2067 |
@Override |
|
2068 |
int getExplicitNonceSize() {
|
|
2069 |
return 0; |
|
2070 |
} |
|
2071 |
||
2072 |
@Override |
|
2073 |
int calculateFragmentSize(int packetLimit, int headerSize) {
|
|
2074 |
return packetLimit - headerSize - tagSize; |
|
2075 |
} |
|
2076 |
||
2077 |
@Override |
|
2078 |
int calculatePacketSize(int fragmentSize, int headerSize) {
|
|
2079 |
return fragmentSize + headerSize + tagSize; |
|
2080 |
} |
|
| 2 | 2081 |
} |
2082 |
} |
|
2083 |
||
| 50768 | 2084 |
private static void addMac(MAC signer, |
2085 |
ByteBuffer destination, byte contentType) {
|
|
2086 |
if (signer.macAlg().size != 0) {
|
|
2087 |
int dstContent = destination.position(); |
|
2088 |
byte[] hash = signer.compute(contentType, destination, false); |
|
2089 |
||
2090 |
/* |
|
2091 |
* position was advanced to limit in MAC compute above. |
|
2092 |
* |
|
2093 |
* Mark next area as writable (above layers should have |
|
2094 |
* established that we have plenty of room), then write |
|
2095 |
* out the hash. |
|
2096 |
*/ |
|
2097 |
destination.limit(destination.limit() + hash.length); |
|
2098 |
destination.put(hash); |
|
2099 |
||
2100 |
// reset the position and limit |
|
2101 |
destination.position(dstContent); |
|
2102 |
} |
|
2103 |
} |
|
2104 |
||
2105 |
// for null and stream cipher |
|
2106 |
private static void checkStreamMac(MAC signer, ByteBuffer bb, |
|
2107 |
byte contentType, byte[] sequence) throws BadPaddingException {
|
|
2108 |
int tagLen = signer.macAlg().size; |
|
2109 |
||
2110 |
// Requires message authentication code for null, stream and |
|
2111 |
// block cipher suites. |
|
2112 |
if (tagLen != 0) {
|
|
2113 |
int contentLen = bb.remaining() - tagLen; |
|
2114 |
if (contentLen < 0) {
|
|
2115 |
throw new BadPaddingException("bad record");
|
|
2116 |
} |
|
2117 |
||
2118 |
// Run MAC computation and comparison on the payload. |
|
2119 |
// |
|
2120 |
// MAC data would be stripped off during the check. |
|
2121 |
if (checkMacTags(contentType, bb, signer, sequence, false)) {
|
|
2122 |
throw new BadPaddingException("bad record MAC");
|
|
2123 |
} |
|
2124 |
} |
|
2125 |
} |
|
| 2 | 2126 |
|
| 50768 | 2127 |
// for CBC cipher |
2128 |
private static void checkCBCMac(MAC signer, ByteBuffer bb, |
|
2129 |
byte contentType, int cipheredLength, |
|
2130 |
byte[] sequence) throws BadPaddingException {
|
|
2131 |
BadPaddingException reservedBPE = null; |
|
2132 |
int tagLen = signer.macAlg().size; |
|
2133 |
int pos = bb.position(); |
|
2134 |
||
2135 |
if (tagLen != 0) {
|
|
2136 |
int contentLen = bb.remaining() - tagLen; |
|
2137 |
if (contentLen < 0) {
|
|
2138 |
reservedBPE = new BadPaddingException("bad record");
|
|
2139 |
||
2140 |
// set offset of the dummy MAC |
|
2141 |
contentLen = cipheredLength - tagLen; |
|
2142 |
bb.limit(pos + cipheredLength); |
|
2143 |
} |
|
| 2 | 2144 |
|
| 50768 | 2145 |
// Run MAC computation and comparison on the payload. |
2146 |
// |
|
2147 |
// MAC data would be stripped off during the check. |
|
2148 |
if (checkMacTags(contentType, bb, signer, sequence, false)) {
|
|
2149 |
if (reservedBPE == null) {
|
|
2150 |
reservedBPE = |
|
2151 |
new BadPaddingException("bad record MAC");
|
|
2152 |
} |
|
2153 |
} |
|
2154 |
||
2155 |
// Run MAC computation and comparison on the remainder. |
|
2156 |
int remainingLen = calculateRemainingLen( |
|
2157 |
signer, cipheredLength, contentLen); |
|
2158 |
||
2159 |
// NOTE: remainingLen may be bigger (less than 1 block of the |
|
2160 |
// hash algorithm of the MAC) than the cipheredLength. |
|
2161 |
// |
|
2162 |
// Is it possible to use a static buffer, rather than allocate |
|
2163 |
// it dynamically? |
|
2164 |
remainingLen += signer.macAlg().size; |
|
2165 |
ByteBuffer temporary = ByteBuffer.allocate(remainingLen); |
|
2166 |
||
2167 |
// Won't need to worry about the result on the remainder. And |
|
2168 |
// then we won't need to worry about what's actual data to |
|
2169 |
// check MAC tag on. We start the check from the header of the |
|
2170 |
// buffer so that we don't need to construct a new byte buffer. |
|
2171 |
checkMacTags(contentType, temporary, signer, sequence, true); |
|
| 2 | 2172 |
} |
2173 |
||
| 50768 | 2174 |
// Is it a failover? |
2175 |
if (reservedBPE != null) {
|
|
2176 |
throw reservedBPE; |
|
| 2 | 2177 |
} |
2178 |
} |
|
2179 |
||
2180 |
/* |
|
| 50768 | 2181 |
* Run MAC computation and comparison |
2182 |
*/ |
|
2183 |
private static boolean checkMacTags(byte contentType, ByteBuffer bb, |
|
2184 |
MAC signer, byte[] sequence, boolean isSimulated) {
|
|
2185 |
int tagLen = signer.macAlg().size; |
|
2186 |
int position = bb.position(); |
|
2187 |
int lim = bb.limit(); |
|
2188 |
int macOffset = lim - tagLen; |
|
2189 |
||
2190 |
bb.limit(macOffset); |
|
2191 |
byte[] hash = signer.compute(contentType, bb, sequence, isSimulated); |
|
2192 |
if (hash == null || tagLen != hash.length) {
|
|
2193 |
// Something is wrong with MAC implementation. |
|
2194 |
throw new RuntimeException("Internal MAC error");
|
|
2195 |
} |
|
2196 |
||
2197 |
bb.position(macOffset); |
|
2198 |
bb.limit(lim); |
|
2199 |
try {
|
|
2200 |
int[] results = compareMacTags(bb, hash); |
|
2201 |
return (results[0] != 0); |
|
2202 |
} finally {
|
|
2203 |
// reset to the data |
|
2204 |
bb.position(position); |
|
2205 |
bb.limit(macOffset); |
|
2206 |
} |
|
2207 |
} |
|
2208 |
||
2209 |
/* |
|
2210 |
* A constant-time comparison of the MAC tags. |
|
| 2 | 2211 |
* |
| 50768 | 2212 |
* Please DON'T change the content of the ByteBuffer parameter! |
| 2 | 2213 |
*/ |
| 50768 | 2214 |
private static int[] compareMacTags(ByteBuffer bb, byte[] tag) {
|
2215 |
// An array of hits is used to prevent Hotspot optimization for |
|
2216 |
// the purpose of a constant-time check. |
|
2217 |
int[] results = {0, 0}; // {missed #, matched #}
|
|
2218 |
||
2219 |
// The caller ensures there are enough bytes available in the buffer. |
|
2220 |
// So we won't need to check the remaining of the buffer. |
|
2221 |
for (byte t : tag) {
|
|
2222 |
if (bb.get() != t) {
|
|
2223 |
results[0]++; // mismatched bytes |
|
2224 |
} else {
|
|
2225 |
results[1]++; // matched bytes |
|
2226 |
} |
|
2227 |
} |
|
2228 |
||
2229 |
return results; |
|
2230 |
} |
|
2231 |
||
2232 |
/* |
|
2233 |
* Calculate the length of a dummy buffer to run MAC computation |
|
2234 |
* and comparison on the remainder. |
|
2235 |
* |
|
2236 |
* The caller MUST ensure that the fullLen is not less than usedLen. |
|
2237 |
*/ |
|
2238 |
private static int calculateRemainingLen( |
|
2239 |
MAC signer, int fullLen, int usedLen) {
|
|
2240 |
||
2241 |
int blockLen = signer.macAlg().hashBlockSize; |
|
2242 |
int minimalPaddingLen = signer.macAlg().minimalPaddingSize; |
|
2243 |
||
2244 |
// (blockLen - minimalPaddingLen) is the maximum message size of |
|
2245 |
// the last block of hash function operation. See FIPS 180-4, or |
|
2246 |
// MD5 specification. |
|
2247 |
fullLen += 13 - (blockLen - minimalPaddingLen); |
|
2248 |
usedLen += 13 - (blockLen - minimalPaddingLen); |
|
2249 |
||
2250 |
// Note: fullLen is always not less than usedLen, and blockLen |
|
2251 |
// is always bigger than minimalPaddingLen, so we don't worry |
|
2252 |
// about negative values. 0x01 is added to the result to ensure |
|
2253 |
// that the return value is positive. The extra one byte does |
|
2254 |
// not impact the overall MAC compression function evaluations. |
|
2255 |
return 0x01 + (int)(Math.ceil(fullLen/(1.0d * blockLen)) - |
|
2256 |
Math.ceil(usedLen/(1.0d * blockLen))) * blockLen; |
|
2257 |
} |
|
2258 |
||
| 2 | 2259 |
private static int addPadding(ByteBuffer bb, int blockSize) {
|
2260 |
||
2261 |
int len = bb.remaining(); |
|
2262 |
int offset = bb.position(); |
|
2263 |
||
2264 |
int newlen = len + 1; |
|
2265 |
byte pad; |
|
2266 |
int i; |
|
2267 |
||
2268 |
if ((newlen % blockSize) != 0) {
|
|
2269 |
newlen += blockSize - 1; |
|
2270 |
newlen -= newlen % blockSize; |
|
2271 |
} |
|
2272 |
pad = (byte) (newlen - len); |
|
2273 |
||
2274 |
/* |
|
2275 |
* Update the limit to what will be padded. |
|
2276 |
*/ |
|
2277 |
bb.limit(newlen + offset); |
|
2278 |
||
2279 |
/* |
|
2280 |
* TLS version of the padding works for both SSLv3 and TLSv1 |
|
2281 |
*/ |
|
2282 |
for (i = 0, offset += len; i < pad; i++) {
|
|
2283 |
bb.put(offset++, (byte) (pad - 1)); |
|
2284 |
} |
|
2285 |
||
2286 |
bb.position(offset); |
|
2287 |
bb.limit(offset); |
|
2288 |
||
2289 |
return newlen; |
|
2290 |
} |
|
2291 |
||
2292 |
private static int removePadding(ByteBuffer bb, |
|
| 16113 | 2293 |
int tagLen, int blockSize, |
2294 |
ProtocolVersion protocolVersion) throws BadPaddingException {
|
|
| 2 | 2295 |
int len = bb.remaining(); |
2296 |
int offset = bb.position(); |
|
2297 |
||
2298 |
// last byte is length byte (i.e. actual padding length - 1) |
|
2299 |
int padOffset = offset + len - 1; |
|
| 16113 | 2300 |
int padLen = bb.get(padOffset) & 0xFF; |
| 2 | 2301 |
|
| 16113 | 2302 |
int newLen = len - (padLen + 1); |
2303 |
if ((newLen - tagLen) < 0) {
|
|
2304 |
// If the buffer is not long enough to contain the padding plus |
|
2305 |
// a MAC tag, do a dummy constant-time padding check. |
|
2306 |
// |
|
2307 |
// Note that it is a dummy check, so we won't care about what is |
|
2308 |
// the actual padding data. |
|
2309 |
checkPadding(bb.duplicate(), (byte)(padLen & 0xFF)); |
|
2310 |
||
2311 |
throw new BadPaddingException("Invalid Padding length: " + padLen);
|
|
| 2 | 2312 |
} |
2313 |
||
| 16113 | 2314 |
// The padding data should be filled with the padding length value. |
2315 |
int[] results = checkPadding( |
|
|
27292
7ff4b24b33ce
4774077: Use covariant return types in the NIO buffer hierarchy
rwarburton
parents:
25859
diff
changeset
|
2316 |
bb.duplicate().position(offset + newLen), |
| 16113 | 2317 |
(byte)(padLen & 0xFF)); |
| 30904 | 2318 |
if (protocolVersion.useTLS10PlusSpec()) {
|
| 16113 | 2319 |
if (results[0] != 0) { // padding data has invalid bytes
|
2320 |
throw new BadPaddingException("Invalid TLS padding data");
|
|
| 2 | 2321 |
} |
2322 |
} else { // SSLv3
|
|
2323 |
// SSLv3 requires 0 <= length byte < block size |
|
2324 |
// some implementations do 1 <= length byte <= block size, |
|
2325 |
// so accept that as well |
|
2326 |
// v3 does not require any particular value for the other bytes |
|
| 16113 | 2327 |
if (padLen > blockSize) {
|
|
40544
807dd9a425db
8150530: Improve javax.crypto.BadPaddingException messages
coffeys
parents:
34826
diff
changeset
|
2328 |
throw new BadPaddingException("Padding length (" +
|
|
807dd9a425db
8150530: Improve javax.crypto.BadPaddingException messages
coffeys
parents:
34826
diff
changeset
|
2329 |
padLen + ") of SSLv3 message should not be bigger " + |
|
807dd9a425db
8150530: Improve javax.crypto.BadPaddingException messages
coffeys
parents:
34826
diff
changeset
|
2330 |
"than the block size (" + blockSize + ")");
|
| 2 | 2331 |
} |
2332 |
} |
|
2333 |
||
| 50768 | 2334 |
// Reset buffer limit to remove padding. |
| 16113 | 2335 |
bb.limit(offset + newLen); |
| 2 | 2336 |
|
| 16113 | 2337 |
return newLen; |
| 2 | 2338 |
} |
|
1763
0a6b65d56746
6750401: SSL stress test with GF leads to 32 bit max process size in less than 5 minutes,with PCKS11 provider
wetmore
parents:
2
diff
changeset
|
2339 |
|
|
0a6b65d56746
6750401: SSL stress test with GF leads to 32 bit max process size in less than 5 minutes,with PCKS11 provider
wetmore
parents:
2
diff
changeset
|
2340 |
/* |
| 50768 | 2341 |
* A constant-time check of the padding. |
| 10915 | 2342 |
* |
| 50768 | 2343 |
* NOTE that we are checking both the padding and the padLen bytes here. |
| 16913 | 2344 |
* |
| 50768 | 2345 |
* The caller MUST ensure that the bb parameter has remaining. |
| 16913 | 2346 |
*/ |
| 50768 | 2347 |
private static int[] checkPadding(ByteBuffer bb, byte pad) {
|
2348 |
if (!bb.hasRemaining()) {
|
|
2349 |
throw new RuntimeException("hasRemaining() must be positive");
|
|
| 16913 | 2350 |
} |
2351 |
||
| 50768 | 2352 |
// An array of hits is used to prevent Hotspot optimization for |
2353 |
// the purpose of a constant-time check. |
|
2354 |
int[] results = {0, 0}; // {missed #, matched #}
|
|
2355 |
bb.mark(); |
|
2356 |
for (int i = 0; i <= 256; bb.reset()) {
|
|
2357 |
for (; bb.hasRemaining() && i <= 256; i++) {
|
|
2358 |
if (bb.get() != pad) {
|
|
2359 |
results[0]++; // mismatched padding data |
|
2360 |
} else {
|
|
2361 |
results[1]++; // matched padding data |
|
| 16913 | 2362 |
} |
| 30904 | 2363 |
} |
2364 |
} |
|
2365 |
||
| 50768 | 2366 |
return results; |
| 30904 | 2367 |
} |
| 50768 | 2368 |
} |
| 30904 | 2369 |