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Padding is the interface defined by JavaSoft's JCE to be implemented by classes that provide a general-purpose padding scheme. It is not used in IJCE, for several reasons:
This interface is included in IJCE only so that classes that use it will not fail with an unrecoverable linking error. The abstract class PaddingScheme should be used instead.
Copyright © 1997
Systemics Ltd on behalf of the
Cryptix Development Team.
All rights reserved.
$Revision: 1.2 $
java.security.PaddingScheme
Method Summary | |
int |
pad(byte[] in,
int off,
int len)
Deprecated. Pads a given array of bytes. |
java.lang.String |
paddingScheme()
Deprecated. Returns the standard name of the padding scheme implemented. |
int |
padLength(int len)
Deprecated. Returns the absolute value of the increase in size that a padding operation would cause on input data of a given length. |
int |
unpad(byte[] in,
int off,
int len)
Deprecated. Given the specified subarray of bytes that includes padding bytes, returns the index indicating where padding starts. |
Method Detail |
public int pad(byte[] in, int off, int len)
in
- the buffer containing the bytes.off
- the offset into the in
buffer of the
first byte in the group of bytes to be padded.len
- the number of bytes from the in
buffer,
starting at off
, that need to be padded.java.security.Cipher#blockSize
public int unpad(byte[] in, int off, int len)
in
- the buffer containing the bytes.off
- the starting offset into the in
buffer of
the bytes to be checked to determine where padding starts.len
- the number of bytes from the in
buffer
to check, starting at offset off
.in
buffer indicating
where the padding starts.public int padLength(int len)
len
- the length of the data which is to be padded.public java.lang.String paddingScheme()
See International JCE Standard Algorithm Names for a list of PaddingScheme algorithm names.
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