xjava.security
public interface Padding
Deprecated:
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 $
Since: IJCE 1.0.0
See Also: java.security.PaddingScheme
Method Summary | |
---|---|
int | pad(byte[] in, int off, int len)
Pads a given array of bytes. |
String | paddingScheme()
Returns the standard name of the padding scheme implemented.
|
int | padLength(int len)
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)
Given the specified subarray of bytes that includes padding
bytes, returns the index indicating where padding starts.
|
Parameters: 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.
Returns: the number of padding bytes written.
See Also: java.security.Cipher#blockSize
See International JCE Standard Algorithm Names for a list of PaddingScheme algorithm names.
Returns: the standard name of the padding scheme, such as "PKCS#5".
Parameters: len the length of the data which is to be padded.
Returns: the absolute value of the increase in size that a padding operation would cause on input data of the specified length.
Parameters: 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
.
Returns: the index into the in
buffer indicating
where the padding starts.