org.bouncycastle.openpgp.operator.bc

Class BcAEADUtil

java.lang.Object

org.bouncycastle.openpgp.operator.bc.BcAEADUtil

public class BcAEADUtil
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	BcAEADUtil.PGPAeadInputStream
protected static class	BcAEADUtil.PGPAeadOutputStream

Constructor Summary

Constructors

Constructor and Description
BcAEADUtil()

Method Summary

Modifier and Type	Method and Description
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

Throws:

PGPException