de.flexiprovider.core.md
Class MD5

java.lang.Object
  |
  +--java.security.MessageDigestSpi
        |
        +--de.flexiprovider.api.MessageDigest
              |
              +--de.flexiprovider.core.md.MDFamilyDigest
                    |
                    +--de.flexiprovider.core.md.MD5

public final class MD5

extends MDFamilyDigest

This class implements the MD5 message digest algorithm according to the Handbook of Applied Cryptography, Menezes, van Oorschot, Vanstone, CRC Press, 1997, algorithm 9.51

The algorithm has been invented by Rivest and further information concerning the MD5 message digest family can be found at www.rsa.com and in RFC 1321.

The efficiency of this implementation has been tested on a AMD K6-III, 450 MHz, running Windows 98 SE, using jdk 1.2.2. The hashing rate is about 125 MBits / second.

Author:

Oliver Seiler

Field Summary

static java.lang.String	ALG_NAME The algorithm name.
static java.lang.String	OID The OID of MD5 (defined by PKCS #2).

Fields inherited from class de.flexiprovider.core.md.MDFamilyDigest

state, x

Constructor Summary

MD5()
Constructor.

Method Summary

byte[]	digest() compute the digest and reset the engine
protected void	processBlock() process a block of 64 bytes
void	reset() reset the engine to its initial state

Methods inherited from class de.flexiprovider.core.md.MDFamilyDigest

getDigestLength, initMessageDigest, padMessageDigest, rotateLeft, update, update

Methods inherited from class de.flexiprovider.api.MessageDigest

digest, digest, engineDigest, engineGetDigestLength, engineReset, engineUpdate, engineUpdate, update

Methods inherited from class java.security.MessageDigestSpi

clone, engineDigest

Methods inherited from class java.lang.Object

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

Field Detail

ALG_NAME

public static final java.lang.String ALG_NAME

The algorithm name.

OID

public static final java.lang.String OID

The OID of MD5 (defined by PKCS #2).

Constructor Detail

MD5

public MD5()

Constructor.

Method Detail

reset

public void reset()

reset the engine to its initial state

Overrides:

reset in class MessageDigest

digest

public byte[] digest()

compute the digest and reset the engine

Overrides:

digest in class MessageDigest

Returns:

the message digest in a byte array

processBlock

protected void processBlock()

process a block of 64 bytes

Overrides:

processBlock in class MDFamilyDigest