net.tomp2p.connection

Class DSASignatureFactory

java.lang.Object

net.tomp2p.connection.DSASignatureFactory

All Implemented Interfaces:

Serializable, SignatureFactory

public class DSASignatureFactory
extends Object
implements SignatureFactory

The default signature is done with SHA1withDSA.

Author:

Thomas Bocek

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DSASignatureFactory()

Method Summary

Methods

Modifier and Type	Method and Description
PublicKey	decodePublicKey(byte[] me) The public key is sent over the wire, thus the decoding of it needs special handling.
PublicKey	decodePublicKey(io.netty.buffer.ByteBuf buf)
void	encodePublicKey(PublicKey publicKey, io.netty.buffer.ByteBuf buf)
SignatureCodec	sign(PrivateKey privateKey, ByteBuffer[] byteBuffers)
SignatureCodec	signatureCodec(io.netty.buffer.ByteBuf buf) Get the signature codec and read the signature directly from the buffer
int	signatureSize()
Signature	update(PublicKey receivedPublicKey, ByteBuffer[] byteBuffers)
boolean	verify(PublicKey publicKey, ByteBuffer[] byteBuffers, SignatureCodec signatureEncoded)

Methods inherited from class java.lang.Object

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

Constructor Detail

DSASignatureFactory

public DSASignatureFactory()

Method Detail

decodePublicKey

public PublicKey decodePublicKey(byte[] me)

Description copied from interface: SignatureFactory

The public key is sent over the wire, thus the decoding of it needs special handling.

Specified by:

decodePublicKey in interface SignatureFactory

Parameters:

me - The byte array that contains the public key

Returns:

The decoded public key

decodePublicKey

public PublicKey decodePublicKey(io.netty.buffer.ByteBuf buf)

Specified by:

decodePublicKey in interface SignatureFactory

encodePublicKey

public void encodePublicKey(PublicKey publicKey,
                   io.netty.buffer.ByteBuf buf)

Specified by:

encodePublicKey in interface SignatureFactory

sign

public SignatureCodec sign(PrivateKey privateKey,
                  ByteBuffer[] byteBuffers)
                    throws InvalidKeyException,
                           SignatureException,
                           IOException

Specified by:

sign in interface SignatureFactory

Throws:

InvalidKeyException

SignatureException

IOException

verify

public boolean verify(PublicKey publicKey,
             ByteBuffer[] byteBuffers,
             SignatureCodec signatureEncoded)
               throws SignatureException,
                      InvalidKeyException

Specified by:

verify in interface SignatureFactory

Throws:

SignatureException

InvalidKeyException

update

public Signature update(PublicKey receivedPublicKey,
               ByteBuffer[] byteBuffers)
                 throws InvalidKeyException,
                        SignatureException

Specified by:

update in interface SignatureFactory

Throws:

InvalidKeyException

SignatureException

signatureCodec

public SignatureCodec signatureCodec(io.netty.buffer.ByteBuf buf)

Description copied from interface: SignatureFactory

Get the signature codec and read the signature directly from the buffer

Specified by:

signatureCodec in interface SignatureFactory

Parameters:

buf - the buffer containing the signature at the reader index

Returns:

the signature codec

signatureSize

public int signatureSize()

Specified by:

signatureSize in interface SignatureFactory

Returns:

the number of bytes of the signature codec