HmacT64

java.lang.Object
- com.hierynomus.security.mac.HmacT64

All Implemented Interfaces:

Mac
```
public class HmacT64
extends java.lang.Object
implements Mac
```
This is an implementation of the HMACT64 keyed hashing algorithm. HMACT64 is defined by Luke Leighton as a modified HMAC-MD5 (RFC 2104) in which the key is truncated at 64 bytes (rather than being hashed via MD5).

Field Summary

Fields
Modifier and Type	Field	Description
`private static int`	`BLOCK_LENGTH`
`private byte[]`	`ipad`
`private static byte`	`IPAD`
`private MessageDigest`	`md5`
`private byte[]`	`opad`
`private static byte`	`OPAD`

Constructor Summary

Constructors
Constructor Description

HmacT64(MessageDigest md5)
Creates an HMACT64 instance which uses the given secret key material.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`byte[]`	`doFinal()`
`void`	`init(byte[] key)`
`void`	`reset()`
`void`	`update(byte b)`
`void`	`update(byte[] array)`
`void`	`update(byte[] array, int offset, int length)`

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

- Field Detail
  - BLOCK_LENGTH
```
private static final int BLOCK_LENGTH
```
    See Also:
    
    Constant Field Values
  - IPAD
```
private static final byte IPAD
```
    See Also:
    
    Constant Field Values
  - OPAD
```
private static final byte OPAD
```
    See Also:
    
    Constant Field Values
  - md5
```
private MessageDigest md5
```
  - ipad
```
private byte[] ipad
```
  - opad
```
private byte[] opad
```
- Constructor Detail
  - HmacT64
```
public HmacT64(MessageDigest md5)
```
    Creates an HMACT64 instance which uses the given secret key material.
- Method Detail
  - init
```
public void init(byte[] key)
          throws SecurityException
```
    Specified by:
    
    init in interface Mac
    
    Throws:
    
    SecurityException
  - doFinal
```
public byte[] doFinal()
```
    Specified by:
    
    doFinal in interface Mac
  - update
```
public void update(byte b)
```
    Specified by:
    
    update in interface Mac
  - update
```
public void update(byte[] array)
```
    Specified by:
    
    update in interface Mac
  - update
```
public void update(byte[] array,
                   int offset,
                   int length)
```
    Specified by:
    
    update in interface Mac
  - reset
```
public void reset()
```
    Specified by:
    
    reset in interface Mac