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## net.sourceforge.jtds.util
Class MD4Digest

    java.lang.Object
      |
      +--net.sourceforge.jtds.util.GeneralDigest
            |
            +--net.sourceforge.jtds.util.MD4Digest

public class MD4Digest
extends GeneralDigest

implementation of MD4 as RFC 1320 by R. Rivest, MIT Laboratory for Computer Science and RSA Data Security, Inc.

NOTE: This algorithm is only included for backwards compatability with legacy applications, it's not secure, don't use it for anything new!

Version:
  $Id: MD4Digest.java,v 1.2 2004/06/27 17:00:55 bheineman Exp $

Field Summary
`private static int` | `DIGEST_LENGTH`
`private int` | `H1`
`private int` | `H2`
`private int` | `H3`
`private int` | `H4`
`private static int` | `S11`
`private static int` | `S12`
`private static int` | `S13`
`private static int` | `S14`
`private static int` | `S21`
`private static int` | `S22`
`private static int` | `S23`
`private static int` | `S24`
`private static int` | `S31`
`private static int` | `S32`
`private static int` | `S33`
`private static int` | `S34`
`private int[]` | `X`
`private int` | `xOff`

Fields inherited from class net.sourceforge.jtds.util.GeneralDigest
`byteCount, xBuf, xBufOff`

Constructor Summary
`MD4Digest()` Standard constructor
`MD4Digest(MD4Digest t)` Copy constructor.

Method Summary
`int` | `doFinal(byte[] out, int outOff)`
`private int` | `F(int u, int v, int w)`
`private int` | `G(int u, int v, int w)`
`java.lang.String` | `getAlgorithmName()`
`int` | `getDigestSize()`
`private int` | `H(int u, int v, int w)`
`protected void` | `processBlock()`
`protected void` | `processLength(long bitLength)`
`protected void` | `processWord(byte[] in, int inOff)`
`void` | `reset()` reset the chaining variables to the IV values.
`private int` | `rotateLeft(int x, int n)`
`private void` | `unpackWord(int word, byte[] out, int outOff)`

Methods inherited from class net.sourceforge.jtds.util.GeneralDigest
`finish, update, update`

Methods inherited from class java.lang.Object
`, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait`

Field Detail

### DIGEST_LENGTH

    private static final int DIGEST_LENGTH

### S11

    private static final int S11

### S12

    private static final int S12

### S13

    private static final int S13

### S14

    private static final int S14

### S21

    private static final int S21

### S22

    private static final int S22

### S23

    private static final int S23

### S24

    private static final int S24

### S31

    private static final int S31

### S32

    private static final int S32

### S33

    private static final int S33

### S34

    private static final int S34

### H1

    private int H1

### H2

    private int H2

### H3

    private int H3

### H4

    private int H4

### X

    private int[] X

### xOff

    private int xOff

Constructor Detail

### MD4Digest

    public MD4Digest()

  Standard constructor

### MD4Digest

    public MD4Digest(MD4Digest t)

  Copy constructor. This will copy the state of the provided message digest.

Method Detail

### getAlgorithmName

    public java.lang.String getAlgorithmName()

### getDigestSize

    public int getDigestSize()

### processWord

    protected void processWord(byte[] in,
                               int inOff)

  Overrides:
    `processWord` in class `GeneralDigest`

### processLength

    protected void processLength(long bitLength)

  Overrides:
    `processLength` in class `GeneralDigest`

### unpackWord

    private void unpackWord(int word,
                            byte[] out,
                            int outOff)

### doFinal

    public int doFinal(byte[] out,
                       int outOff)

### reset

    public void reset()

  reset the chaining variables to the IV values.
  Overrides:
    `reset` in class `GeneralDigest`

### rotateLeft

    private int rotateLeft(int x,
                           int n)

### F

    private int F(int u,
                  int v,
                  int w)

### G

    private int G(int u,
                  int v,
                  int w)

### H

    private int H(int u,
                  int v,
                  int w)

### processBlock

    protected void processBlock()

  Overrides:
    `processBlock` in class `GeneralDigest`

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Generated on November 8 2005