public final class OneAndZeroes extends PaddingScheme
blockSize
.
Copyright © 1997
Systemics Ltd on behalf of the
Cryptix Development Team.
All rights reserved.
$Revision: 1.4 $
java.security.PaddingScheme
blockSize
Constructor and Description |
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OneAndZeroes()
Creates a OneAndZeroes object.
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Modifier and Type | Method and Description |
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protected boolean |
engineIsValidBlockSize(int size)
SPI: Returns true if size is a valid block size (in
bytes) for this algorithm.
|
protected int |
enginePad(byte[] in,
int offset,
int length)
Pads a given array of bytes.
|
protected int |
engineUnpad(byte[] in,
int offset,
int length)
Given the specified subarray of bytes that includes padding bytes, returns
the index indicating where padding starts.
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clone, engineGetParameter, engineSetBlockSize, engineSetParameter, getAlgorithm, getAlgorithms, getAlgorithms, getBlockSize, getInstance, getInstance, getParameter, pad, paddingScheme, padLength, setParameter, toString, unpad
protected int enginePad(byte[] in, int offset, int length)
in[offset..offset+blockSize-1]
.enginePad
in class PaddingScheme
in
- the buffer containing the incomplete block.offset
- the offset into the in buffer of the
first byte in the group of bytes to be padded.length
- the number of bytes from the in buffer,
starting at offset, that need to be padded.protected int engineUnpad(byte[] in, int offset, int length)
engineUnpad
in class PaddingScheme
in
- the buffer containing the bytes.offset
- the offset into the in buffer of the
first byte in the block.length
- the number of bytes from the in buffer
to check, starting at offset.protected boolean engineIsValidBlockSize(int size)
For OneAndZeroes padding, all sizes are valid.
engineIsValidBlockSize
in class PaddingScheme