org.logi.crypto.sign
Class MD5State

java.lang.Object
  |
  +--org.logi.crypto.Crypto
        |
        +--org.logi.crypto.sign.HashState
              |
              +--org.logi.crypto.sign.MD5State

public class MD5State

extends HashState

An object of this class holds the state of an MD5 fingerprint still being calculated.

Author:

Logi Ragnarsson (logir@logi.org)

See Also:

Fingerprint, Signature

Inner Class Summary

static class

MD5State.SubState MD5 function without the padding.

Fields inherited from class org.logi.crypto.Crypto

BIT, cdsPath, EMPTY_ARRAY, FOUR, keySource, NIBBLE, ONE, primeCertainty, random, TWO, ZERO

Constructor Summary

MD5State()
Create a new clear MD5State.

Method Summary

int	blockSize() Return the size of input-blocks for this hash function in bytes.
Fingerprint	calculate() Return a Fingerprint for the curret state, without destroying the state.
java.lang.String	getName() The name of the algorithm is "MD5".
int	hashSize() Returns the size of a fingerprint in bytes.
void	reset() Reset the object.
void	update(byte[] data, int offset, int length) Update the fingerprint state with the bytes from buf[offset, offset+length-1].

Methods inherited from class org.logi.crypto.sign.HashState

create, create, getDefaultHashFunction, setDefaultHashFunction, update, update

Methods inherited from class org.logi.crypto.Crypto

binString, binString, ensureArrayLength, ensureArrayLength, equal, equalRelaxed, equalSub, fromHexNibble, fromHexString, fromString, fromString, hexString, hexString, hexString, hexString, hexString, initRandom, initRandom, makeClass, makeInt, makeLong, makeSessionKey, pastSpace, pickBits, pickBits, prettyPrint, prettyPrint, readBlock, readInt, trimArrayLength, trimArrayLength, trimLeadingZeroes, writeBytes, writeBytes, writeInt

Methods inherited from class java.lang.Object

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

Constructor Detail

MD5State

public MD5State()

Create a new clear MD5State.

Method Detail

getName

public java.lang.String getName()

The name of the algorithm is "MD5".

Overrides:

getName in class HashState

reset

public void reset()

Reset the object.

Overrides:

reset in class HashState

update

public void update(byte[] data,
                   int offset,
                   int length)

Update the fingerprint state with the bytes from buf[offset, offset+length-1].

Overrides:

update in class HashState

calculate

public Fingerprint calculate()

Return a Fingerprint for the curret state, without destroying the state.

Overrides:

calculate in class HashState

blockSize

public int blockSize()

Return the size of input-blocks for this hash function in bytes.

Overrides:

blockSize in class HashState

hashSize

public int hashSize()

Returns the size of a fingerprint in bytes.

Overrides:

hashSize in class HashState