diff options
Diffstat (limited to 'libjava/gnu/java/security/provider/DSAParameters.java')
-rw-r--r-- | libjava/gnu/java/security/provider/DSAParameters.java | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/libjava/gnu/java/security/provider/DSAParameters.java b/libjava/gnu/java/security/provider/DSAParameters.java deleted file mode 100644 index 77d648956ee..00000000000 --- a/libjava/gnu/java/security/provider/DSAParameters.java +++ /dev/null @@ -1,150 +0,0 @@ -/* DSAParameters.java --- DSA Parameters Implementation - Copyright (C) 1999, 2003, 2004 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 gnu.java.io.ASN1ParsingException; -import gnu.java.security.der.DER; -import gnu.java.security.der.DERReader; -import gnu.java.security.der.DERValue; -import gnu.java.security.der.DERWriter; - -import java.io.ByteArrayOutputStream; -import java.io.IOException; -import java.math.BigInteger; -import java.security.AlgorithmParametersSpi; -import java.security.spec.AlgorithmParameterSpec; -import java.security.spec.DSAParameterSpec; -import java.security.spec.InvalidParameterSpecException; -import java.util.ArrayList; - -/* - ASN.1 Encoding for DSA from rfc2459 - - id-dsa ID ::= { iso(1) member-body(2) us(840) x9-57(10040) - x9cm(4) 1 } - - Dss-Parms ::= SEQUENCE { - p INTEGER, - q INTEGER, - g INTEGER } - -*/ -public class DSAParameters extends AlgorithmParametersSpi -{ -private BigInteger q; // the small prime -private BigInteger p; // the big prime -private BigInteger g; - - -public void engineInit(AlgorithmParameterSpec paramSpec) - throws InvalidParameterSpecException -{ - if( paramSpec instanceof DSAParameterSpec ) { - DSAParameterSpec dsaParamSpec = (DSAParameterSpec)paramSpec; - p = dsaParamSpec.getP(); - q = dsaParamSpec.getQ(); - g = dsaParamSpec.getG(); - } - else - throw new InvalidParameterSpecException("Only accepts DSAParameterSpec"); -} - -public void engineInit(byte[] params) - throws IOException -{ - DERReader in = new DERReader(params); - DERValue val = in.read(); - if (val.getValue() != DER.CONSTRUCTED_VALUE) - throw new ASN1ParsingException("badly formed parameters"); - try - { - p = (BigInteger) in.read().getValue(); - q = (BigInteger) in.read().getValue(); - g = (BigInteger) in.read().getValue(); - } - catch (Exception x) - { - throw new ASN1ParsingException("badly formed parameters"); - } -} - -public void engineInit(byte[] params, String format) - throws IOException -{ - if( !format.equals("ASN.1") ) - throw new IOException("Invalid Format: Only accepts ASN.1"); - engineInit( params ); -} - -public AlgorithmParameterSpec engineGetParameterSpec(Class paramSpec) - throws InvalidParameterSpecException -{ - if( paramSpec.isAssignableFrom(DSAParameterSpec.class) ) - return new DSAParameterSpec(p, q, g); - else - throw new InvalidParameterSpecException("Only accepts DSAParameterSpec"); -} - -public byte[] engineGetEncoded() - throws IOException -{ - ByteArrayOutputStream bout = new ByteArrayOutputStream(); - ArrayList seq = new ArrayList(3); - seq.add(new DERValue(DER.INTEGER, p)); - seq.add(new DERValue(DER.INTEGER, q)); - seq.add(new DERValue(DER.INTEGER, g)); - DERWriter.write(bout, new DERValue(DER.CONSTRUCTED | DER.SEQUENCE, seq)); - return bout.toByteArray(); -} - - -public byte[] engineGetEncoded(String format) - throws IOException -{ - if( !format.equals("ASN.1") ) - throw new IOException("Invalid Format: Only accepts ASN.1"); - return engineGetEncoded(); -} - -public String engineToString() -{ - return ("q: " + q + " p: " + p + " g: " + g); -} - -} |