org.spongycastle.tls.crypto.impl.bc

Class BcTlsDSSSigner

java.lang.Object

org.spongycastle.tls.crypto.impl.bc.BcTlsSigner

org.spongycastle.tls.crypto.impl.bc.BcTlsDSSSigner

All Implemented Interfaces:

TlsSigner

Direct Known Subclasses:

BcTlsDSASigner, BcTlsECDSASigner

public abstract class BcTlsDSSSigner
extends BcTlsSigner

BC light-weight base class for the signers implementing the two DSA style algorithms from FIPS PUB 186-4: DSA and ECDSA.

Field Summary

Fields inherited from class org.spongycastle.tls.crypto.impl.bc.BcTlsSigner

crypto, privateKey

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BcTlsDSSSigner(BcTlsCrypto crypto, org.spongycastle.crypto.params.AsymmetricKeyParameter privateKey)

Method Summary

Modifier and Type	Method and Description
protected abstract org.spongycastle.crypto.DSA	createDSAImpl(short hashAlgorithm)
byte[]	generateRawSignature(SignatureAndHashAlgorithm algorithm, byte[] hash) Generate an encoded signature based on the passed in hash,
protected abstract short	getSignatureAlgorithm()

Methods inherited from class org.spongycastle.tls.crypto.impl.bc.BcTlsSigner

getStreamSigner

Methods inherited from class java.lang.Object

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

Constructor Detail

BcTlsDSSSigner

protected BcTlsDSSSigner(BcTlsCrypto crypto,
                         org.spongycastle.crypto.params.AsymmetricKeyParameter privateKey)

Method Detail

createDSAImpl

protected abstract org.spongycastle.crypto.DSA createDSAImpl(short hashAlgorithm)

getSignatureAlgorithm

protected abstract short getSignatureAlgorithm()

generateRawSignature

public byte[] generateRawSignature(SignatureAndHashAlgorithm algorithm,
                                   byte[] hash)
                            throws java.io.IOException

Description copied from interface: TlsSigner

Generate an encoded signature based on the passed in hash,

Parameters:

algorithm - the signature algorithm to use.

hash - the hash calculated for the signature.

Returns:

an encoded signature.

Throws:

java.io.IOException - in case of an exception processing the hash.