org.apache.mina.proxy.utils

Class MD4

java.lang.Object

java.security.MessageDigestSpi

org.apache.mina.proxy.utils.MD4

public class MD4
extends java.security.MessageDigestSpi

MD4.java - An implementation of Ron Rivest's MD4 message digest algorithm. The MD4 algorithm is designed to be quite fast on 32-bit machines. In addition, the MD4 algorithm does not require any large substitution tables.

Since:

MINA 2.0.0-M3

Author:

Apache MINA Project

See Also:

MD4 Message- Digest Algorithm by R. Rivest.

Field Summary

Fields

Modifier and Type	Field and Description
static int	BYTE_BLOCK_LENGTH The MD4 algorithm block length is 64 bytes wide.
static int	BYTE_DIGEST_LENGTH The MD4 algorithm message digest length is 16 bytes wide.

Constructor Summary

Constructors

Constructor and Description
MD4() Default constructor.

Method Summary

Modifier and Type	Method and Description
protected byte[]	engineDigest()
protected int	engineDigest(byte[] buf, int offset, int len)
protected int	engineGetDigestLength() Returns the digest length in bytes.
protected void	engineReset()
protected void	engineUpdate(byte b)
protected void	engineUpdate(byte[] b, int offset, int len)

Methods inherited from class java.security.MessageDigestSpi

clone, engineUpdate

Methods inherited from class java.lang.Object

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

Field Detail

BYTE_DIGEST_LENGTH

public static final int BYTE_DIGEST_LENGTH

The MD4 algorithm message digest length is 16 bytes wide.

See Also:

Constant Field Values

BYTE_BLOCK_LENGTH

public static final int BYTE_BLOCK_LENGTH

The MD4 algorithm block length is 64 bytes wide.

See Also:

Constant Field Values

Constructor Detail

MD4

public MD4()

Default constructor.

Method Detail

engineGetDigestLength

protected int engineGetDigestLength()

Returns the digest length in bytes.

Overrides:

engineGetDigestLength in class java.security.MessageDigestSpi

Returns:

the digest length in bytes.

engineUpdate

protected void engineUpdate(byte b)

Specified by:

engineUpdate in class java.security.MessageDigestSpi

engineUpdate

protected void engineUpdate(byte[] b,
                            int offset,
                            int len)

Specified by:

engineUpdate in class java.security.MessageDigestSpi

engineDigest

protected byte[] engineDigest()

Specified by:

engineDigest in class java.security.MessageDigestSpi

engineDigest

protected int engineDigest(byte[] buf,
                           int offset,
                           int len)
                    throws java.security.DigestException

Overrides:

engineDigest in class java.security.MessageDigestSpi

Throws:

java.security.DigestException

engineReset

protected void engineReset()

Specified by:

engineReset in class java.security.MessageDigestSpi