author | valeriep |
Wed, 10 Apr 2019 02:35:18 +0000 | |
changeset 54483 | ac20c3bdc55d |
parent 53069 | ba1a557b6ccd |
child 55667 | 6521aec1c26e |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2018, 2019, 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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|
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package sun.security.util; |
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|
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import java.io.IOException; |
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import java.security.*; |
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import java.security.spec.*; |
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import sun.security.rsa.RSAUtil; |
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import jdk.internal.access.SharedSecrets; |
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|
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/** |
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* Utility class for Signature related operations. Currently used by various |
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* internal PKI classes such as sun.security.x509.X509CertImpl, |
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* sun.security.pkcs.SignerInfo, for setting signature parameters. |
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* |
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* @since 11 |
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*/ |
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public class SignatureUtil { |
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private static String checkName(String algName) throws ProviderException { |
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if (algName.indexOf(".") == -1) { |
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return algName; |
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} |
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// convert oid to String |
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try { |
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return Signature.getInstance(algName).getAlgorithm(); |
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} catch (Exception e) { |
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throw new ProviderException("Error mapping algorithm name", e); |
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} |
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} |
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// Utility method of creating an AlgorithmParameters object with |
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// the specified algorithm name and encoding |
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private static AlgorithmParameters createAlgorithmParameters(String algName, |
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byte[] paramBytes) throws ProviderException { |
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|
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try { |
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algName = checkName(algName); |
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AlgorithmParameters result = |
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AlgorithmParameters.getInstance(algName); |
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result.init(paramBytes); |
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return result; |
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} catch (NoSuchAlgorithmException | IOException e) { |
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throw new ProviderException(e); |
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} |
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} |
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// Utility method for converting the specified AlgorithmParameters object |
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// into an AlgorithmParameterSpec object. |
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public static AlgorithmParameterSpec getParamSpec(String sigName, |
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AlgorithmParameters params) |
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throws ProviderException { |
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|
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sigName = checkName(sigName); |
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AlgorithmParameterSpec paramSpec = null; |
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if (params != null) { |
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if (sigName.toUpperCase().indexOf("RSA") == -1) { |
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throw new ProviderException |
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("Unrecognized algorithm for signature parameters " + |
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sigName); |
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} |
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// AlgorithmParameters.getAlgorithm() may returns oid if it's |
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// created during DER decoding. Convert to use the standard name |
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// before passing it to RSAUtil |
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if (params.getAlgorithm().indexOf(".") != -1) { |
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try { |
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params = createAlgorithmParameters(sigName, |
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params.getEncoded()); |
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} catch (IOException e) { |
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throw new ProviderException(e); |
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} |
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} |
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paramSpec = RSAUtil.getParamSpec(params); |
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} |
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return paramSpec; |
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} |
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|
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// Utility method for converting the specified parameter bytes into an |
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// AlgorithmParameterSpec object. |
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public static AlgorithmParameterSpec getParamSpec(String sigName, |
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byte[] paramBytes) |
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throws ProviderException { |
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sigName = checkName(sigName); |
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AlgorithmParameterSpec paramSpec = null; |
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if (paramBytes != null) { |
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if (sigName.toUpperCase().indexOf("RSA") == -1) { |
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throw new ProviderException |
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("Unrecognized algorithm for signature parameters " + |
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sigName); |
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} |
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AlgorithmParameters params = |
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createAlgorithmParameters(sigName, paramBytes); |
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paramSpec = RSAUtil.getParamSpec(params); |
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} |
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return paramSpec; |
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} |
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|
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// Utility method for initializing the specified Signature object |
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// for verification with the specified key and params (may be null) |
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public static void initVerifyWithParam(Signature s, PublicKey key, |
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AlgorithmParameterSpec params) |
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throws ProviderException, InvalidAlgorithmParameterException, |
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InvalidKeyException { |
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SharedSecrets.getJavaSecuritySignatureAccess().initVerify(s, key, params); |
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} |
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|
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// Utility method for initializing the specified Signature object |
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// for verification with the specified Certificate and params (may be null) |
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public static void initVerifyWithParam(Signature s, |
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java.security.cert.Certificate cert, |
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AlgorithmParameterSpec params) |
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throws ProviderException, InvalidAlgorithmParameterException, |
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InvalidKeyException { |
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SharedSecrets.getJavaSecuritySignatureAccess().initVerify(s, cert, params); |
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} |
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|
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// Utility method for initializing the specified Signature object |
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// for signing with the specified key and params (may be null) |
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public static void initSignWithParam(Signature s, PrivateKey key, |
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AlgorithmParameterSpec params, SecureRandom sr) |
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throws ProviderException, InvalidAlgorithmParameterException, |
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InvalidKeyException { |
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SharedSecrets.getJavaSecuritySignatureAccess().initSign(s, key, params, sr); |
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} |
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} |