diff options
Diffstat (limited to 'libjava/gnu/java/security/provider/DSAKeyPairGenerator.java')
| -rw-r--r-- | libjava/gnu/java/security/provider/DSAKeyPairGenerator.java | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/libjava/gnu/java/security/provider/DSAKeyPairGenerator.java b/libjava/gnu/java/security/provider/DSAKeyPairGenerator.java deleted file mode 100644 index 2c643d5c367..00000000000 --- a/libjava/gnu/java/security/provider/DSAKeyPairGenerator.java +++ /dev/null @@ -1,171 +0,0 @@ -/* GnuDSAKeyPairGenerator.java --- Gnu DSA Key Pair Generator - Copyright (C) 1999 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package gnu.java.security.provider; - -import java.math.BigInteger; -import java.security.AlgorithmParameterGenerator; -import java.security.AlgorithmParameters; -import java.security.InvalidAlgorithmParameterException; -import java.security.InvalidParameterException; -import java.security.KeyPair; -import java.security.KeyPairGeneratorSpi; -import java.security.SecureRandom; -import java.security.interfaces.DSAParams; -import java.security.spec.AlgorithmParameterSpec; -import java.security.spec.DSAParameterSpec; -import java.util.Random; - -public class DSAKeyPairGenerator extends KeyPairGeneratorSpi - implements java.security.interfaces.DSAKeyPairGenerator -{ -int keysize; -SecureRandom random; -private BigInteger q = null; // the small prime -private BigInteger p = null; // the big prime -private BigInteger g = null; - -DSAKeyPairGenerator() -{ - keysize = 1024; -} - -public void initialize(int keysize, SecureRandom random) -{ - //if( ((keysize % 64) != 0) || (keysize < 512) || (keysize > 1024) ) - // throw new InvalidAlgorithmParameterException("Invalid key size"); - - this.keysize = keysize; - this.random = random; -} - -public void initialize(AlgorithmParameterSpec params, - SecureRandom random) - throws InvalidAlgorithmParameterException -{ - if( !( params instanceof DSAParameterSpec ) ) - throw new InvalidAlgorithmParameterException("Must be DSAParameterSpec"); - - DSAParameterSpec dsaparameterspec = (DSAParameterSpec)params; - p = dsaparameterspec.getP(); - q = dsaparameterspec.getQ(); - g = dsaparameterspec.getG(); - this.random = random; -} - -public void initialize(DSAParams params, SecureRandom random) - throws InvalidParameterException -{ - if(params.getP() != null) - p = params.getP(); - else - throw new InvalidParameterException(); - - if(params.getQ() != null) - q = params.getQ(); - else - throw new InvalidParameterException(); - - if(params.getG() != null) - g = params.getG(); - else - throw new InvalidParameterException(); - - this.random = random; -} - -public void initialize(int modlen, boolean genParams, SecureRandom random) - throws InvalidParameterException -{ - if( ((modlen % 64) != 0) || (modlen < 512) || (modlen > 1024) ) - throw new InvalidParameterException(); - - if( (genParams == false) && (modlen != 512) && (modlen != 768) && (modlen != 1024) ) - throw new InvalidParameterException(); - this.keysize = modlen; - this.random = random; - p = null; - q = null; - g = null; -} - -public KeyPair generateKeyPair() -{ - if( getDefaults() == false) { - try { - AlgorithmParameterGenerator apgDSA = AlgorithmParameterGenerator.getInstance("DSA"); - AlgorithmParameters apDSA = apgDSA.generateParameters(); - DSAParameterSpec dsaparameterspec = (DSAParameterSpec)apDSA.getParameterSpec( DSAParameterSpec.class ); - p = dsaparameterspec.getP(); - q = dsaparameterspec.getQ(); - g = dsaparameterspec.getG(); - } catch ( Exception e ) { - return null; - } - } - - BigInteger x = new BigInteger( 159, new Random() ); - - BigInteger y = g.modPow( x, p ); - - return new KeyPair( new GnuDSAPublicKey(y,p,q,g), new GnuDSAPrivateKey(x,p,q,g)); - //return new KeyPair( public, private ); -} - -//These constants are Sun's Constants copied from the -//Cryptography Specification -private boolean getDefaults() -{ - if( keysize == 512) { - p = new BigInteger("fca682ce8e12caba26efccf7110e526db078b05edecbcd1eb4a208f3ae1617ae01f35b91a47e6df63413c5e12ed0899bcd132acd50d99151bdc43ee737592e17", 16); - q = new BigInteger("962eddcc369cba8ebb260ee6b6a126d9346e38c5", 16); - g = new BigInteger("678471b27a9cf44ee91a49c5147db1a9aaf244f05a434d6486931d2d14271b9e35030b71fd73da179069b32e2935630e1c2062354d0da20a6c416e50be794ca4", 16); - return true; - } else if( keysize == 768) { - p = new BigInteger("e9e642599d355f37c97ffd3567120b8e25c9cd43e927b3a9670fbec5d890141922d2c3b3ad2480093799869d1e846aab49fab0ad26d2ce6a22219d470bce7d777d4a21fbe9c270b57f607002f3cef8393694cf45ee3688c11a8c56ab127a3daf", 16); - q = new BigInteger("9cdbd84c9f1ac2f38d0f80f42ab952e7338bf511", 16); - g = new BigInteger("30470ad5a005fb14ce2d9dcd87e38bc7d1b1c5facbaecbe95f190aa7a31d23c4dbbcbe06174544401a5b2c020965d8c2bd2171d3668445771f74ba084d2029d83c1c158547f3a9f1a2715be23d51ae4d3e5a1f6a7064f316933a346d3f529252", 16); - } else if( keysize == 512) { - p = new BigInteger("fd7f53811d75122952df4a9c2eece4e7f611b7523cef4400c31e3f80b6512669455d402251fb593d8d58fabfc5f5ba30f6cb9b556cd7813b801d346ff26660b76b9950a5a49f9fe8047b1022c24fbba9d7feb7c61bf83b57e7c6a8a6150f04fb83f6d3c51ec3023554135a169132f675f3ae2b61d72aeff22203199dd14801c7", 16); - q = new BigInteger("9760508f15230bccb292b982a2eb840bf0581cf5", 16); - g = new BigInteger("f7e1a085d69b3ddecbbcab5c36b857b97994afbbfa3aea82f9574c0b3d0782675159578ebad4594fe67107108180b449167123e84c281613b7cf09328cc8a6e13c167a8b547c8d28e0a3ae1e2bb3a675916ea37f0bfa213562f1fb627a01243bcca4f1bea8519089a883dfe15ae59f06928b665e807b552564014c3bfecf492a", 16); - } - return false; -} - -} |
