de.uni_koblenz.aggrimm.icp.crypto.sign.algorithm.auxiliary

Class TripleHasher

java.lang.Object

de.uni_koblenz.aggrimm.icp.crypto.sign.algorithm.auxiliary.TripleHasher

public class TripleHasher
extends Object

This class provides functions to calculate the hash for individual triples

Author:

Peter Schauß

Constructor Summary

Constructors

Constructor and Description
TripleHasher()

Method Summary

Modifier and Type	Method and Description
static byte[]	hashTripleConcatenation(Triple t, MessageDigest d) Deprecated.
static BigInteger	hashTripleMelnik(Triple t, MessageDigest d) Hashs a triple using the approach of Melnik

Methods inherited from class java.lang.Object

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

Constructor Detail

TripleHasher

public TripleHasher()

Method Detail

hashTripleMelnik

public static BigInteger hashTripleMelnik(Triple t,
                                          MessageDigest d)
                                   throws Exception

Hashs a triple using the approach of Melnik

Parameters:

t - triples to hash

d - used digest method for hashing

Returns:

hash value as byte array

Throws:

Exception - if hashing fails

hashTripleConcatenation

@Deprecated
public static byte[] hashTripleConcatenation(Triple t,
                                                         MessageDigest d)
                                                  throws Exception

Deprecated.

Hashs a triple using simple string concatenation.

Parameters:

t - triples to hash

d - used digest method for hashing

Returns:

hash value as byte array

Throws:

Exception - if hashing fails