net.java.truevfs.comp.zip.crypto

Interface SeekableBlockCipher

All Superinterfaces:

BlockCipher

All Known Implementing Classes:

CtrBlockCipher

public interface SeekableBlockCipher
extends BlockCipher

Extends a BlockCipher in order to support random access to the blocks in a plain or cipher text.

Author:

Christian Schlichtherle

Method Summary

Modifier and Type	Method and Description
long	getBlockCounter() Returns the index of the block, starting at 0, which will be processed next when BlockCipher.processBlock(byte[], int, byte[], int) is called.
void	setBlockCounter(long blockCounter) Sets the counter so that the block with the given index, starting at 0, can be processed next.

Methods inherited from interface org.bouncycastle.crypto.BlockCipher

getAlgorithmName, getBlockSize, init, processBlock, reset

Method Detail

getBlockCounter

long getBlockCounter()

Returns the index of the block, starting at 0, which will be processed next when BlockCipher.processBlock(byte[], int, byte[], int) is called.

setBlockCounter

void setBlockCounter(long blockCounter)

Sets the counter so that the block with the given index, starting at 0, can be processed next.

Parameters:

blockCounter - The index of the block, starting at 0, which will be processed next when BlockCipher.processBlock(byte[], int, byte[], int) is called.