org.bouncycastle.crypto.modes

Class AESCCMPacketCipher

java.lang.Object

org.bouncycastle.crypto.modes.AESCCMPacketCipher

All Implemented Interfaces:

AESCCMModePacketCipher, PacketCipher

public class AESCCMPacketCipher
extends java.lang.Object
implements AESCCMModePacketCipher

Constructor Summary

Constructors

Constructor and Description
AESCCMPacketCipher()

Method Summary

Modifier and Type	Method and Description
protected static void	ctrProcessBlock(byte[] counter, byte[] counterOut, byte[] in, int inOff, byte[] out, int outOff, int[][] workingkeys, byte[] s)
int	getOutputSize(boolean encryption, CipherParameters params, int len) Returns the expected output size for direction and parameters.
static AESCCMModePacketCipher	newInstance()
int	processPacket(boolean forEncryption, CipherParameters params, byte[] in, int inOff, int inLen, byte[] output, int outOff) Process a packet.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.bouncycastle.crypto.modes.AESCCMModePacketCipher

getCCMMacSize, getMacSize

Constructor Detail

AESCCMPacketCipher

public AESCCMPacketCipher()

Method Detail

newInstance

public static AESCCMModePacketCipher newInstance()

getOutputSize

public int getOutputSize(boolean encryption,
                         CipherParameters params,
                         int len)

Description copied from interface: PacketCipher

Returns the expected output size for direction and parameters.

Specified by:

getOutputSize in interface PacketCipher

Parameters:

encryption - encryption if true

params - The cipher parameters

len - the input length.

Returns:

the required minimum output length in bytes.

processPacket

public int processPacket(boolean forEncryption,
                         CipherParameters params,
                         byte[] in,
                         int inOff,
                         int inLen,
                         byte[] output,
                         int outOff)
                  throws PacketCipherException

Description copied from interface: PacketCipher

Process a packet.

Specified by:

processPacket in interface PacketCipher

Parameters:

forEncryption - encryption if true

params - The key parameters

in - The input byte array

inOff - Offset within byte array to start reading input.

inLen - the number of bytes of input to process.

output - The output array

outOff - the offset within the output array to start writing output.

Returns:

Throws:

PacketCipherException - if the transformation encounters an error.

ctrProcessBlock

protected static void ctrProcessBlock(byte[] counter,
                                      byte[] counterOut,
                                      byte[] in,
                                      int inOff,
                                      byte[] out,
                                      int outOff,
                                      int[][] workingkeys,
                                      byte[] s)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object