org.bouncycastle.openpgp.operator.bc
Class BcAEADUtil

java.lang.Object
  |
  +--org.bouncycastle.openpgp.operator.bc.BcAEADUtil

public class BcAEADUtil

extends java.lang.Object

Inner Class Summary

protected static class	BcAEADUtil.PGPAeadInputStream
protected static class	BcAEADUtil.PGPAeadOutputStream

Constructor Summary

BcAEADUtil()

Method Summary

static org.bouncycastle.crypto.modes.AEADBlockCipher	createAEADCipher(int encAlgorithm, int aeadAlgorithm)
protected static long	getChunkLength(int chunkSize) Calculate an actual chunk length from the encoded chunk size.
protected static byte[]	getNonce(byte[] iv, long chunkIndex) Generate a nonce by xor-ing the given iv with the chunk index.
protected static void	xorChunkId(byte[] nonce, long chunkIndex) XOR the byte array with the chunk index in-place.

Methods inherited from class java.lang.Object

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

Constructor Detail

BcAEADUtil

public BcAEADUtil()

Method Detail

getNonce

protected static byte[] getNonce(byte[] iv,
                                 long chunkIndex)

Generate a nonce by xor-ing the given iv with the chunk index.

Parameters:

iv - initialization vector

chunkIndex - chunk index

Returns:

nonce

xorChunkId

protected static void xorChunkId(byte[] nonce,
                                 long chunkIndex)

XOR the byte array with the chunk index in-place.

Parameters:

nonce - byte array

chunkIndex - chunk index

getChunkLength

protected static long getChunkLength(int chunkSize)

Calculate an actual chunk length from the encoded chunk size.

Parameters:

chunkSize - encoded chunk size

Returns:

decoded length

createAEADCipher

public static org.bouncycastle.crypto.modes.AEADBlockCipher createAEADCipher(int encAlgorithm,
                                                                             int aeadAlgorithm)
                                                                      throws PGPException