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Show all versions of truezip Show documentation
Show all versions of truezip Show documentation
TrueZIP is a Java based Virtual File System (VFS) to enable
transparent, multi-threaded read/write access to archive files
(ZIP, TAR etc.) as if they were directories.
Archive files may be arbitrarily nested and the nesting level is only
limited by heap and file system size.
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/*
* Copyright (C) 2005-2010 Schlichtherle IT Services
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package de.schlichtherle.crypto;
import org.bouncycastle.crypto.BlockCipher;
/**
* Extends a {@code BlockCipher} in order to support random access to
* the blocks in a plain or cipher text.
*
* @author Christian Schlichtherle
* @version $Id: SeekableBlockCipher.java,v 1.4 2010/08/20 13:09:53 christian_schlichtherle Exp $
* @since TrueZIP 3.1
*/
public interface SeekableBlockCipher extends BlockCipher {
/**
* Sets the counter so that the block with the given index, starting
* at 0, can be processed next.
*
* @param block The index of the block, starting at 0, which will be
* processed next when
* {@link #processBlock(byte[], int, byte[], int)} is called.
*/
void setBlockCounter(long block);
/**
* Returns the index of the block, starting at 0, which will be processed
* next when {@link #processBlock(byte[], int, byte[], int)} is called.
*/
long getBlockCounter();
}