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diff --git a/libjava/gnu/java/security/provider/DSAParameters.java b/libjava/gnu/java/security/provider/DSAParameters.java
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-/* 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);
-}
-
-}
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