author | mbalao |
Wed, 12 Sep 2018 13:09:51 +0200 | |
changeset 51800 | bccd9966f1ed |
parent 47216 | 71c04702a3d5 |
child 53257 | 5170dc2bcf64 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005, 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.pkcs11; |
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import java.security.*; |
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import java.security.spec.AlgorithmParameterSpec; |
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import javax.crypto.*; |
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import sun.security.internal.spec.TlsMasterSecretParameterSpec; |
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import static sun.security.pkcs11.TemplateManager.*; |
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import sun.security.pkcs11.wrapper.*; |
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import static sun.security.pkcs11.wrapper.PKCS11Constants.*; |
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/** |
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* KeyGenerator for the SSL/TLS master secret. |
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* |
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* @author Andreas Sterbenz |
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* @since 1.6 |
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*/ |
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public final class P11TlsMasterSecretGenerator extends KeyGeneratorSpi { |
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private final static String MSG = "TlsMasterSecretGenerator must be " |
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+ "initialized using a TlsMasterSecretParameterSpec"; |
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// token instance |
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private final Token token; |
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// algorithm name |
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private final String algorithm; |
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// mechanism id |
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private long mechanism; |
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private int tlsVersion; |
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@SuppressWarnings("deprecation") |
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private TlsMasterSecretParameterSpec spec; |
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private P11Key p11Key; |
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CK_VERSION ckVersion; |
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// whether SSLv3 is supported |
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private final boolean supportSSLv3; |
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P11TlsMasterSecretGenerator(Token token, String algorithm, long mechanism) |
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throws PKCS11Exception { |
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super(); |
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this.token = token; |
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this.algorithm = algorithm; |
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this.mechanism = mechanism; |
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// Given the current lookup order specified in SunPKCS11.java, if |
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// CKM_SSL3_MASTER_KEY_DERIVE is not used to construct this object, |
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// it means that this mech is disabled or unsupported. |
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supportSSLv3 = (mechanism == CKM_SSL3_MASTER_KEY_DERIVE); |
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} |
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protected void engineInit(SecureRandom random) { |
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throw new InvalidParameterException(MSG); |
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} |
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@SuppressWarnings("deprecation") |
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protected void engineInit(AlgorithmParameterSpec params, |
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SecureRandom random) throws InvalidAlgorithmParameterException { |
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if (params instanceof TlsMasterSecretParameterSpec == false) { |
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throw new InvalidAlgorithmParameterException(MSG); |
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} |
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TlsMasterSecretParameterSpec spec = (TlsMasterSecretParameterSpec)params; |
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tlsVersion = (spec.getMajorVersion() << 8) | spec.getMinorVersion(); |
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if ((tlsVersion == 0x0300 && !supportSSLv3) || |
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(tlsVersion < 0x0300) || (tlsVersion > 0x0303)) { |
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throw new InvalidAlgorithmParameterException |
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("Only" + (supportSSLv3? " SSL 3.0,": "") + |
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" TLS 1.0, TLS 1.1 and TLS 1.2 are supported (" + |
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tlsVersion + ")"); |
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} |
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SecretKey key = spec.getPremasterSecret(); |
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// algorithm should be either TlsRsaPremasterSecret or TlsPremasterSecret, |
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// but we omit the check |
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try { |
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p11Key = P11SecretKeyFactory.convertKey(token, key, null); |
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} catch (InvalidKeyException e) { |
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throw new InvalidAlgorithmParameterException("init() failed", e); |
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} |
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this.spec = spec; |
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final boolean isTlsRsaPremasterSecret = |
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p11Key.getAlgorithm().equals("TlsRsaPremasterSecret"); |
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if (tlsVersion == 0x0300) { |
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mechanism = isTlsRsaPremasterSecret ? |
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CKM_SSL3_MASTER_KEY_DERIVE : CKM_SSL3_MASTER_KEY_DERIVE_DH; |
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} else if (tlsVersion == 0x0301 || tlsVersion == 0x0302) { |
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mechanism = isTlsRsaPremasterSecret ? |
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CKM_TLS_MASTER_KEY_DERIVE : CKM_TLS_MASTER_KEY_DERIVE_DH; |
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} else if (tlsVersion == 0x0303) { |
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mechanism = isTlsRsaPremasterSecret ? |
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CKM_TLS12_MASTER_KEY_DERIVE : CKM_TLS12_MASTER_KEY_DERIVE_DH; |
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} |
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if (isTlsRsaPremasterSecret) { |
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ckVersion = new CK_VERSION(0, 0); |
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} else { |
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// Note: we use DH for all non-RSA premaster secrets. That includes |
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// Kerberos. That should not be a problem because master secret |
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// calculation is always a straightforward application of the |
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// TLS PRF (or the SSL equivalent). |
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// The only thing special about RSA master secret calculation is |
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// that it extracts the version numbers from the premaster secret. |
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ckVersion = null; |
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} |
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} |
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protected void engineInit(int keysize, SecureRandom random) { |
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throw new InvalidParameterException(MSG); |
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} |
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protected SecretKey engineGenerateKey() { |
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if (spec == null) { |
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throw new IllegalStateException |
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("TlsMasterSecretGenerator must be initialized"); |
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} |
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byte[] clientRandom = spec.getClientRandom(); |
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byte[] serverRandom = spec.getServerRandom(); |
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CK_SSL3_RANDOM_DATA random = |
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new CK_SSL3_RANDOM_DATA(clientRandom, serverRandom); |
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CK_MECHANISM ckMechanism = null; |
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if (tlsVersion < 0x0303) { |
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CK_SSL3_MASTER_KEY_DERIVE_PARAMS params = |
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new CK_SSL3_MASTER_KEY_DERIVE_PARAMS(random, ckVersion); |
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ckMechanism = new CK_MECHANISM(mechanism, params); |
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} else if (tlsVersion == 0x0303) { |
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CK_TLS12_MASTER_KEY_DERIVE_PARAMS params = |
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new CK_TLS12_MASTER_KEY_DERIVE_PARAMS(random, ckVersion, |
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Functions.getHashMechId(spec.getPRFHashAlg())); |
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ckMechanism = new CK_MECHANISM(mechanism, params); |
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} |
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Session session = null; |
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try { |
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session = token.getObjSession(); |
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CK_ATTRIBUTE[] attributes = token.getAttributes(O_GENERATE, |
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CKO_SECRET_KEY, CKK_GENERIC_SECRET, new CK_ATTRIBUTE[0]); |
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long keyID = token.p11.C_DeriveKey(session.id(), |
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ckMechanism, p11Key.keyID, attributes); |
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int major, minor; |
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if (ckVersion == null) { |
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major = -1; |
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minor = -1; |
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} else { |
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major = ckVersion.major; |
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minor = ckVersion.minor; |
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} |
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SecretKey key = P11Key.masterSecretKey(session, keyID, |
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"TlsMasterSecret", 48 << 3, attributes, major, minor); |
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return key; |
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} catch (Exception e) { |
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throw new ProviderException("Could not generate key", e); |
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} finally { |
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token.releaseSession(session); |
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} |
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} |
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} |