Package org.xipki.security

Class DSAPlainDigestSigner

java.lang.Object

org.xipki.security.DSAPlainDigestSigner

All Implemented Interfaces:

org.bouncycastle.crypto.Signer

public class DSAPlainDigestSigner
extends Object
implements org.bouncycastle.crypto.Signer

Plain-DSA signer. The signature is not encoded as ASN.1 structure, but just the concatenation of two integer (r and s) in format of byte array.

Since:

2.0.0

Author:

Lijun Liao (xipki)

Constructor Summary

Constructors

Constructor	Description
DSAPlainDigestSigner(org.bouncycastle.crypto.DSA signer, org.bouncycastle.crypto.Digest digest)

Method Summary

Modifier and Type	Method	Description
byte[]	generateSignature()
void	init(boolean forSigning, org.bouncycastle.crypto.CipherParameters parameters)
void	reset()
void	update(byte input)
void	update(byte[] input, int inOff, int length)
boolean	verifySignature(byte[] signature)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DSAPlainDigestSigner

public DSAPlainDigestSigner(org.bouncycastle.crypto.DSA signer,
                            org.bouncycastle.crypto.Digest digest)

Method Detail

init

public void init(boolean forSigning,
                 org.bouncycastle.crypto.CipherParameters parameters)

Specified by:

init in interface org.bouncycastle.crypto.Signer

update

public void update(byte input)

Specified by:

update in interface org.bouncycastle.crypto.Signer

update

public void update(byte[] input,
                   int inOff,
                   int length)

Specified by:

update in interface org.bouncycastle.crypto.Signer

generateSignature

public byte[] generateSignature()

Specified by:

generateSignature in interface org.bouncycastle.crypto.Signer

verifySignature

public boolean verifySignature(byte[] signature)

Specified by:

verifySignature in interface org.bouncycastle.crypto.Signer

reset

public void reset()

Specified by:

reset in interface org.bouncycastle.crypto.Signer