GeneralDigest (jTDS API)

java.lang.Object
- net.sourceforge.jtds.util.GeneralDigest

Direct Known Subclasses:

MD4Digest
```
public abstract class GeneralDigest
extends java.lang.Object
```
base implementation of MD4 family style digest as outlined in "Handbook of Applied Cryptography", pages 344 - 347.

Version:

$Id: GeneralDigest.java,v 1.2 2004-06-27 17:00:55 bheineman Exp $

Field Summary

Fields
Modifier and Type Field Description

private long byteCount

private byte[] xBuf

private int xBufOff

Constructor Summary

Constructors
Modifier Constructor Description

protected GeneralDigest()
Standard constructor

protected GeneralDigest(GeneralDigest t)
Copy constructor.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`finish()`
`protected abstract void`	`processBlock()`
`protected abstract void`	`processLength(long bitLength)`
`protected abstract void`	`processWord(byte[] in, int inOff)`
`void`	`reset()`
`void`	`update(byte in)`
`void`	`update(byte[] in, int inOff, int len)`

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

Field Detail

xBuf
```
private byte[] xBuf
```

xBufOff
```
private int xBufOff
```

byteCount
```
private long byteCount
```

Constructor Detail
- GeneralDigest
```
protected GeneralDigest()
```
  Standard constructor
- GeneralDigest
```
protected GeneralDigest(GeneralDigest t)
```
  Copy constructor. We are using copy constructors in place of the Object.clone() interface as this interface is not supported by J2ME.

Method Detail

update
```
public void update(byte in)
```

update

public void update(byte[] in,
                   int inOff,
                   int len)

finish
```
public void finish()
```

reset
```
public void reset()
```

processWord

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

processLength

protected abstract void processLength(long bitLength)

processBlock

protected abstract void processBlock()