org.bouncycastle.crypto.tls
Class TlsStreamCipher

java.lang.Object
  org.bouncycastle.crypto.tls.TlsStreamCipher

All Implemented Interfaces:

TlsCipher

public class TlsStreamCipher
extends java.lang.Object
implements TlsCipher

Field Summary

protected TlsContext	context
protected StreamCipher	decryptCipher
protected StreamCipher	encryptCipher
protected TlsMac	readMac
protected boolean	usesNonce
protected TlsMac	writeMac

Constructor Summary

TlsStreamCipher(TlsContext context, StreamCipher clientWriteCipher, StreamCipher serverWriteCipher, Digest clientWriteDigest, Digest serverWriteDigest, int cipherKeySize)
Deprecated. Use version with additional 'usesNonce' argument

TlsStreamCipher(TlsContext context, StreamCipher clientWriteCipher, StreamCipher serverWriteCipher, Digest clientWriteDigest, Digest serverWriteDigest, int cipherKeySize, boolean usesNonce)

Method Summary

byte[]	decodeCiphertext(long seqNo, short type, byte[] ciphertext, int offset, int len)
byte[]	encodePlaintext(long seqNo, short type, byte[] plaintext, int offset, int len)
int	getPlaintextLimit(int ciphertextLimit)

Methods inherited from class java.lang.Object

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

Field Detail

context

protected TlsContext context

encryptCipher

protected StreamCipher encryptCipher

decryptCipher

protected StreamCipher decryptCipher

writeMac

protected TlsMac writeMac

readMac

protected TlsMac readMac

usesNonce

protected boolean usesNonce

Constructor Detail

TlsStreamCipher

public TlsStreamCipher(TlsContext context,
                       StreamCipher clientWriteCipher,
                       StreamCipher serverWriteCipher,
                       Digest clientWriteDigest,
                       Digest serverWriteDigest,
                       int cipherKeySize)
                throws java.io.IOException

Deprecated. Use version with additional 'usesNonce' argument

Throws:

java.io.IOException

TlsStreamCipher

public TlsStreamCipher(TlsContext context,
                       StreamCipher clientWriteCipher,
                       StreamCipher serverWriteCipher,
                       Digest clientWriteDigest,
                       Digest serverWriteDigest,
                       int cipherKeySize,
                       boolean usesNonce)
                throws java.io.IOException

Throws:

java.io.IOException

Method Detail

getPlaintextLimit

public int getPlaintextLimit(int ciphertextLimit)

Specified by:

getPlaintextLimit in interface TlsCipher

encodePlaintext

public byte[] encodePlaintext(long seqNo,
                              short type,
                              byte[] plaintext,
                              int offset,
                              int len)

Specified by:

encodePlaintext in interface TlsCipher

decodeCiphertext

public byte[] decodeCiphertext(long seqNo,
                               short type,
                               byte[] ciphertext,
                               int offset,
                               int len)
                        throws java.io.IOException

Specified by:

decodeCiphertext in interface TlsCipher

Throws:

java.io.IOException