de.flexiprovider.pqc.ots.lm
Class LMOTSHash

java.lang.Object
  |
  +--de.flexiprovider.pqc.ots.lm.LMOTSHash

public class LMOTSHash

extends java.lang.Object

This class implements the hash function used for the signature. It is described in the paper on page 7 (2.3 A hash function family)

Constructor Summary

LMOTSHash(byte[] encoded)
Constructor using an encoded byte Array to construct an LMOTS Hash.

LMOTSHash(java.util.Vector a)
Constructor

Method Summary

GFP32Polynomial	calculatHash(java.util.Vector vec) this method calculates the hash of a given vector of GFP32Polynomial
java.util.Vector	getA()
byte[]	getEncoded()

Methods inherited from class java.lang.Object

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

Constructor Detail

LMOTSHash

public LMOTSHash(byte[] encoded)

Constructor using an encoded byte Array to construct an LMOTS Hash. The byte array must comply to the encoding format of LMOTS Hash. Using .getEncoded() yields a suitable byte array.

Parameters:

encoded - the byte array to be decoded.

LMOTSHash

public LMOTSHash(java.util.Vector a)

Constructor

Parameters:

a - a vector of GFP32Polynomial

Method Detail

calculatHash

public GFP32Polynomial calculatHash(java.util.Vector vec)

this method calculates the hash of a given vector of GFP32Polynomial

Parameters:

vec - a vector of GFP32Polynomial

Returns:

a GFP32Polynomial

getA

public java.util.Vector getA()

getEncoded

public byte[] getEncoded()
                  throws codec.asn1.ASN1Exception,
                         java.io.IOException