org.bouncycastle.crypto.tls
Class TlsBlockCipherCipherSuite

java.lang.Object
  org.bouncycastle.crypto.tls.TlsCipherSuite
      org.bouncycastle.crypto.tls.TlsBlockCipherCipherSuite

public class TlsBlockCipherCipherSuite
extends TlsCipherSuite

A generic TLS 1.0 block cipher suite. This can be used for AES or 3DES for example.

Field Summary

private int	cipherKeySize
private BlockCipher	decryptCipher
private BlockCipher	encryptCipher
private short	keyExchange
private Digest	readDigest
private TlsMac	readMac
private Digest	writeDigest
private TlsMac	writeMac

Fields inherited from class org.bouncycastle.crypto.tls.TlsCipherSuite

KE_DH_anon, KE_DH_DSS, KE_DH_RSA, KE_DHE_DSS, KE_DHE_DSS_EXPORT, KE_DHE_RSA, KE_DHE_RSA_EXPORT, KE_RSA, KE_RSA_EXPORT

Constructor Summary

protected

TlsBlockCipherCipherSuite(BlockCipher encrypt, BlockCipher decrypt, Digest writeDigest, Digest readDigest, int cipherKeySize, short keyExchange)

Method Summary

protected byte[]	decodeCiphertext(short type, byte[] ciphertext, int offset, int len, TlsProtocolHandler handler)
protected byte[]	encodePlaintext(short type, byte[] plaintext, int offset, int len)
protected short	getKeyExchangeAlgorithm()
protected void	init(byte[] ms, byte[] cr, byte[] sr)
private void	initCipher(boolean forEncryption, BlockCipher cipher, byte[] key_block, int key_size, int key_offset, int iv_offset)

Methods inherited from class java.lang.Object

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

Field Detail

encryptCipher

private BlockCipher encryptCipher

decryptCipher

private BlockCipher decryptCipher

writeDigest

private Digest writeDigest

readDigest

private Digest readDigest

cipherKeySize

private int cipherKeySize

keyExchange

private short keyExchange

writeMac

private TlsMac writeMac

readMac

private TlsMac readMac

Constructor Detail

TlsBlockCipherCipherSuite

protected TlsBlockCipherCipherSuite(BlockCipher encrypt,
                                    BlockCipher decrypt,
                                    Digest writeDigest,
                                    Digest readDigest,
                                    int cipherKeySize,
                                    short keyExchange)

Method Detail

init

protected void init(byte[] ms,
                    byte[] cr,
                    byte[] sr)

Specified by:

init in class TlsCipherSuite

initCipher

private void initCipher(boolean forEncryption,
                        BlockCipher cipher,
                        byte[] key_block,
                        int key_size,
                        int key_offset,
                        int iv_offset)

encodePlaintext

protected byte[] encodePlaintext(short type,
                                 byte[] plaintext,
                                 int offset,
                                 int len)

Specified by:

encodePlaintext in class TlsCipherSuite

decodeCiphertext

protected byte[] decodeCiphertext(short type,
                                  byte[] ciphertext,
                                  int offset,
                                  int len,
                                  TlsProtocolHandler handler)
                           throws java.io.IOException

Specified by:

decodeCiphertext in class TlsCipherSuite

Throws:

java.io.IOException

getKeyExchangeAlgorithm

protected short getKeyExchangeAlgorithm()

Specified by:

getKeyExchangeAlgorithm in class TlsCipherSuite