src/java.base/share/classes/sun/security/rsa/RSASignature.java
branchJDK-8145252-TLS13-branch
changeset 56542 56aaa6cb3693
parent 47216 71c04702a3d5
child 56592 b1902b22005e
equal deleted inserted replaced
56541:92cbbfc996f3 56542:56aaa6cb3693
     1 /*
     1 /*
     2  * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved.
     2  * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Oracle designates this
     7  * published by the Free Software Foundation.  Oracle designates this
    28 import java.io.IOException;
    28 import java.io.IOException;
    29 import java.nio.ByteBuffer;
    29 import java.nio.ByteBuffer;
    30 
    30 
    31 import java.security.*;
    31 import java.security.*;
    32 import java.security.interfaces.*;
    32 import java.security.interfaces.*;
    33 
    33 import java.security.spec.AlgorithmParameterSpec;
       
    34 
       
    35 import sun.security.rsa.RSAUtil.KeyType;
    34 import sun.security.util.*;
    36 import sun.security.util.*;
    35 import sun.security.x509.AlgorithmId;
    37 import sun.security.x509.AlgorithmId;
    36 
    38 
    37 /**
    39 /**
    38  * PKCS#1 RSA signatures with the various message digest algorithms.
    40  * PKCS#1 v1.5 RSA signatures with the various message digest algorithms.
    39  * This file contains an abstract base class with all the logic plus
    41  * This file contains an abstract base class with all the logic plus
    40  * a nested static class for each of the message digest algorithms
    42  * a nested static class for each of the message digest algorithms
    41  * (see end of the file). We support MD2, MD5, SHA-1, SHA-224, SHA-256,
    43  * (see end of the file). We support MD2, MD5, SHA-1, SHA-224, SHA-256,
    42  * SHA-384, and SHA-512.
    44  * SHA-384, SHA-512, SHA-512/224, and SHA-512/256.
    43  *
    45  *
    44  * @since   1.5
    46  * @since   1.5
    45  * @author  Andreas Sterbenz
    47  * @author  Andreas Sterbenz
    46  */
    48  */
    47 public abstract class RSASignature extends SignatureSpi {
    49 public abstract class RSASignature extends SignatureSpi {
    83         digestReset = true;
    85         digestReset = true;
    84         encodedLength = baseLength + oidLength + md.getDigestLength();
    86         encodedLength = baseLength + oidLength + md.getDigestLength();
    85     }
    87     }
    86 
    88 
    87     // initialize for verification. See JCA doc
    89     // initialize for verification. See JCA doc
       
    90     @Override
    88     protected void engineInitVerify(PublicKey publicKey)
    91     protected void engineInitVerify(PublicKey publicKey)
    89             throws InvalidKeyException {
    92             throws InvalidKeyException {
    90         RSAPublicKey rsaKey = (RSAPublicKey)RSAKeyFactory.toRSAKey(publicKey);
    93         RSAPublicKey rsaKey = (RSAPublicKey)RSAKeyFactory.toRSAKey(publicKey);
    91         this.privateKey = null;
    94         this.privateKey = null;
    92         this.publicKey = rsaKey;
    95         this.publicKey = rsaKey;
    93         initCommon(rsaKey, null);
    96         initCommon(rsaKey, null);
    94     }
    97     }
    95 
    98 
    96     // initialize for signing. See JCA doc
    99     // initialize for signing. See JCA doc
       
   100     @Override
    97     protected void engineInitSign(PrivateKey privateKey)
   101     protected void engineInitSign(PrivateKey privateKey)
    98             throws InvalidKeyException {
   102             throws InvalidKeyException {
    99         engineInitSign(privateKey, null);
   103         engineInitSign(privateKey, null);
   100     }
   104     }
   101 
   105 
   102     // initialize for signing. See JCA doc
   106     // initialize for signing. See JCA doc
       
   107     @Override
   103     protected void engineInitSign(PrivateKey privateKey, SecureRandom random)
   108     protected void engineInitSign(PrivateKey privateKey, SecureRandom random)
   104             throws InvalidKeyException {
   109             throws InvalidKeyException {
   105         RSAPrivateKey rsaKey =
   110         RSAPrivateKey rsaKey =
   106             (RSAPrivateKey)RSAKeyFactory.toRSAKey(privateKey);
   111             (RSAPrivateKey)RSAKeyFactory.toRSAKey(privateKey);
   107         this.privateKey = rsaKey;
   112         this.privateKey = rsaKey;
   112     /**
   117     /**
   113      * Init code common to sign and verify.
   118      * Init code common to sign and verify.
   114      */
   119      */
   115     private void initCommon(RSAKey rsaKey, SecureRandom random)
   120     private void initCommon(RSAKey rsaKey, SecureRandom random)
   116             throws InvalidKeyException {
   121             throws InvalidKeyException {
       
   122         try {
       
   123             RSAUtil.checkParamsAgainstType(KeyType.RSA, rsaKey.getParams());
       
   124         } catch (ProviderException e) {
       
   125             throw new InvalidKeyException("Invalid key for RSA signatures", e);
       
   126         }
   117         resetDigest();
   127         resetDigest();
   118         int keySize = RSACore.getByteLength(rsaKey);
   128         int keySize = RSACore.getByteLength(rsaKey);
   119         try {
   129         try {
   120             padding = RSAPadding.getInstance
   130             padding = RSAPadding.getInstance
   121                 (RSAPadding.PAD_BLOCKTYPE_1, keySize, random);
   131                 (RSAPadding.PAD_BLOCKTYPE_1, keySize, random);
   146         digestReset = true;
   156         digestReset = true;
   147         return md.digest();
   157         return md.digest();
   148     }
   158     }
   149 
   159 
   150     // update the signature with the plaintext data. See JCA doc
   160     // update the signature with the plaintext data. See JCA doc
       
   161     @Override
   151     protected void engineUpdate(byte b) throws SignatureException {
   162     protected void engineUpdate(byte b) throws SignatureException {
   152         md.update(b);
   163         md.update(b);
   153         digestReset = false;
   164         digestReset = false;
   154     }
   165     }
   155 
   166 
   156     // update the signature with the plaintext data. See JCA doc
   167     // update the signature with the plaintext data. See JCA doc
       
   168     @Override
   157     protected void engineUpdate(byte[] b, int off, int len)
   169     protected void engineUpdate(byte[] b, int off, int len)
   158             throws SignatureException {
   170             throws SignatureException {
   159         md.update(b, off, len);
   171         md.update(b, off, len);
   160         digestReset = false;
   172         digestReset = false;
   161     }
   173     }
   162 
   174 
   163     // update the signature with the plaintext data. See JCA doc
   175     // update the signature with the plaintext data. See JCA doc
       
   176     @Override
   164     protected void engineUpdate(ByteBuffer b) {
   177     protected void engineUpdate(ByteBuffer b) {
   165         md.update(b);
   178         md.update(b);
   166         digestReset = false;
   179         digestReset = false;
   167     }
   180     }
   168 
   181 
   169     // sign the data and return the signature. See JCA doc
   182     // sign the data and return the signature. See JCA doc
       
   183     @Override
   170     protected byte[] engineSign() throws SignatureException {
   184     protected byte[] engineSign() throws SignatureException {
       
   185         if (privateKey == null) {
       
   186             throw new SignatureException("Missing private key");
       
   187         }
   171         byte[] digest = getDigestValue();
   188         byte[] digest = getDigestValue();
   172         try {
   189         try {
   173             byte[] encoded = encodeSignature(digestOID, digest);
   190             byte[] encoded = encodeSignature(digestOID, digest);
   174             byte[] padded = padding.pad(encoded);
   191             byte[] padded = padding.pad(encoded);
   175             byte[] encrypted = RSACore.rsa(padded, privateKey, true);
   192             byte[] encrypted = RSACore.rsa(padded, privateKey, true);
   181         }
   198         }
   182     }
   199     }
   183 
   200 
   184     // verify the data and return the result. See JCA doc
   201     // verify the data and return the result. See JCA doc
   185     // should be reset to the state after engineInitVerify call.
   202     // should be reset to the state after engineInitVerify call.
       
   203     @Override
   186     protected boolean engineVerify(byte[] sigBytes) throws SignatureException {
   204     protected boolean engineVerify(byte[] sigBytes) throws SignatureException {
       
   205         if (publicKey == null) {
       
   206             throw new SignatureException("Missing public key");
       
   207         }
   187         try {
   208         try {
   188             if (sigBytes.length != RSACore.getByteLength(publicKey)) {
   209             if (sigBytes.length != RSACore.getByteLength(publicKey)) {
   189                 throw new SignatureException("Signature length not correct: got " +
   210                 throw new SignatureException("Signature length not correct: got " +
   190                     sigBytes.length + " but was expecting " +
   211                     sigBytes.length + " but was expecting " +
   191                     RSACore.getByteLength(publicKey));
   212                     RSACore.getByteLength(publicKey));
   246         return digest;
   267         return digest;
   247     }
   268     }
   248 
   269 
   249     // set parameter, not supported. See JCA doc
   270     // set parameter, not supported. See JCA doc
   250     @Deprecated
   271     @Deprecated
       
   272     @Override
   251     protected void engineSetParameter(String param, Object value)
   273     protected void engineSetParameter(String param, Object value)
   252             throws InvalidParameterException {
   274             throws InvalidParameterException {
   253         throw new UnsupportedOperationException("setParameter() not supported");
   275         throw new UnsupportedOperationException("setParameter() not supported");
   254     }
   276     }
   255 
   277 
       
   278     // See JCA doc
       
   279     @Override
       
   280     protected void engineSetParameter(AlgorithmParameterSpec params)
       
   281         throws InvalidAlgorithmParameterException {
       
   282         if (params != null) {
       
   283             throw new InvalidAlgorithmParameterException("No parameters accepted");
       
   284         }
       
   285     }
       
   286 
   256     // get parameter, not supported. See JCA doc
   287     // get parameter, not supported. See JCA doc
   257     @Deprecated
   288     @Deprecated
       
   289     @Override
   258     protected Object engineGetParameter(String param)
   290     protected Object engineGetParameter(String param)
   259             throws InvalidParameterException {
   291             throws InvalidParameterException {
   260         throw new UnsupportedOperationException("getParameter() not supported");
   292         throw new UnsupportedOperationException("getParameter() not supported");
       
   293     }
       
   294 
       
   295     // See JCA doc
       
   296     @Override
       
   297     protected AlgorithmParameters engineGetParameters() {
       
   298         return null;
   261     }
   299     }
   262 
   300 
   263     // Nested class for MD2withRSA signatures
   301     // Nested class for MD2withRSA signatures
   264     public static final class MD2withRSA extends RSASignature {
   302     public static final class MD2withRSA extends RSASignature {
   265         public MD2withRSA() {
   303         public MD2withRSA() {
   307         public SHA512withRSA() {
   345         public SHA512withRSA() {
   308             super("SHA-512", AlgorithmId.SHA512_oid, 11);
   346             super("SHA-512", AlgorithmId.SHA512_oid, 11);
   309         }
   347         }
   310     }
   348     }
   311 
   349 
       
   350     // Nested class for SHA512/224withRSA signatures
       
   351     public static final class SHA512_224withRSA extends RSASignature {
       
   352         public SHA512_224withRSA() {
       
   353             super("SHA-512/224", AlgorithmId.SHA512_224_oid, 11);
       
   354         }
       
   355     }
       
   356 
       
   357     // Nested class for SHA512/256withRSA signatures
       
   358     public static final class SHA512_256withRSA extends RSASignature {
       
   359         public SHA512_256withRSA() {
       
   360             super("SHA-512/256", AlgorithmId.SHA512_256_oid, 11);
       
   361         }
       
   362     }
   312 }
   363 }