org.spongycastle.crypto.tls

Class TlsAEADCipher

java.lang.Object

org.spongycastle.crypto.tls.TlsAEADCipher

All Implemented Interfaces:

TlsCipher

public class TlsAEADCipher
extends java.lang.Object
implements TlsCipher

Field Summary

Fields

Modifier and Type	Field and Description
protected TlsContext	context
protected AEADBlockCipher	decryptCipher
protected byte[]	decryptImplicitNonce
protected AEADBlockCipher	encryptCipher
protected byte[]	encryptImplicitNonce
protected int	macSize
static int	NONCE_RFC5288
protected int	nonceMode
protected int	record_iv_length

Constructor Summary

Constructors

Constructor and Description
TlsAEADCipher(TlsContext context, AEADBlockCipher clientWriteCipher, AEADBlockCipher serverWriteCipher, int cipherKeySize, int macSize)

Method Summary

Modifier and Type	Method and Description
byte[]	decodeCiphertext(long seqNo, short type, byte[] ciphertext, int offset, int len)
byte[]	encodePlaintext(long seqNo, short type, byte[] plaintext, int offset, int len)
protected byte[]	getAdditionalData(long seqNo, short type, 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

NONCE_RFC5288

public static final int NONCE_RFC5288

See Also:

Constant Field Values

context

protected TlsContext context

macSize

protected int macSize

record_iv_length

protected int record_iv_length

encryptCipher

protected AEADBlockCipher encryptCipher

decryptCipher

protected AEADBlockCipher decryptCipher

encryptImplicitNonce

protected byte[] encryptImplicitNonce

decryptImplicitNonce

protected byte[] decryptImplicitNonce

nonceMode

protected int nonceMode

Constructor Detail

TlsAEADCipher

public TlsAEADCipher(TlsContext context,
                     AEADBlockCipher clientWriteCipher,
                     AEADBlockCipher serverWriteCipher,
                     int cipherKeySize,
                     int macSize)
              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)
                       throws java.io.IOException

Specified by:

encodePlaintext in interface TlsCipher

Throws:

java.io.IOException

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

getAdditionalData

protected byte[] getAdditionalData(long seqNo,
                                   short type,
                                   int len)
                            throws java.io.IOException

Throws:

java.io.IOException