iaik.security.md

Class RipeMd256

java.lang.Object

java.security.MessageDigestSpi

java.security.MessageDigest

iaik.security.md.AbstractMessageDigest

iaik.security.md.RipeMd256

All Implemented Interfaces:

java.lang.Cloneable

public final class RipeMd256
extends AbstractMessageDigest

This class implements the RipeMd256 message digest algorithm. It produces a 256 bit digest (hence the name). However, note that RipeMd256 provides only the same security as RipeMd128, since it is based on the latter! Consider using SHA-256 instead. Nevertheless, it can be used in applications that require a fast computation of longer hash values.

For a specification of the algorithm see Fast Software Encryption, LCS 1039, Springer Verlag, 1996, pp. 71-82. Also available online from http://www.esat.kuleuven.ac.be/cosic/cosic.html.

Version:

File Revision 10

See Also:

MessageDigest

Constructor Summary

Constructors

Constructor and Description
RipeMd256() Creates a new RipeMd256 message digest object.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	clone() Returns a clone of this RipeMd256 Object.
protected void	engineReset() SPI: Resets this RipeMd256 message digest object for being supplied with new data.

Methods inherited from class iaik.security.md.AbstractMessageDigest

engineDigest, engineGetDigestLength, engineUpdate, engineUpdate

Methods inherited from class java.security.MessageDigest

digest, digest, digest, getAlgorithm, getDigestLength, getInstance, getInstance, getInstance, getProvider, isEqual, reset, toString, update, update, update, update

Methods inherited from class java.security.MessageDigestSpi

engineDigest, engineUpdate

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

RipeMd256

public RipeMd256()

Creates a new RipeMd256 message digest object. Applications do not use this constructor. They shall use

 MessageDigest.getInstance("RIPEMD256");

for creating a messageDigest object.

See Also:

MessageDigest.getInstance(java.lang.String)

Method Detail

clone

public java.lang.Object clone()

Returns a clone of this RipeMd256 Object.

Overrides:

clone in class AbstractMessageDigest

Returns:

a clone of this RipeMd256 Object

engineReset

protected void engineReset()

SPI: Resets this RipeMd256 message digest object for being supplied with new data.

This method is called by engineDigest after the actual hash computation has been finished to automatically reset the message digest object for being supplied with new data for starting a new hash computation.

Specified by:

engineReset in class AbstractMessageDigest

See Also:

MessageDigestSpi.engineReset()