de.flexiprovider.pqc.ecc.niederreiter
Class NiederreiterPublicKey

java.lang.Object
  |
  +--de.flexiprovider.api.keys.PublicKey
        |
        +--de.flexiprovider.pqc.ecc.niederreiter.NiederreiterPublicKey

All Implemented Interfaces:

java.security.Key, Key, java.security.PublicKey, java.io.Serializable

public class NiederreiterPublicKey

extends PublicKey

This class implements a Niederreiter public key and is usually instantiated by the NiederreiterKeyPairGenerator.

Author:

Elena Klintsevich

See Also:

NiederreiterKeyPairGenerator, NiederreiterPublicKey, Serialized Form

Fields inherited from interface java.security.Key

serialVersionUID

Fields inherited from interface java.security.PublicKey

serialVersionUID

Constructor Summary

protected	NiederreiterPublicKey(int n, int t, GF2Matrix h) Constructor, used by NiederreiterKeyPairGenerator.
protected	NiederreiterPublicKey(NiederreiterPublicKeySpec keySpec) Constructor, used by NiederreiterKeyFactory.

Method Summary

boolean	equals(java.lang.Object other) Compare this key with another object.
java.lang.String	getAlgorithm() Return the name of the algorithm.
protected codec.asn1.ASN1Type	getAlgParams()
GF2Matrix	getH()
int	getK()
protected byte[]	getKeyData() Return the key data to encode in the SubjectPublicKeyInfo structure.
int	getN()
protected codec.asn1.ASN1ObjectIdentifier	getOID()
int	getT()
int	hashCode()
java.lang.String	toString()

Methods inherited from class de.flexiprovider.api.keys.PublicKey

getEncoded, getFormat

Methods inherited from class java.lang.Object

, clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NiederreiterPublicKey

protected NiederreiterPublicKey(int n,
                                int t,
                                GF2Matrix h)

Constructor, used by NiederreiterKeyPairGenerator.

Parameters:

n - length of the code

t - error correction capability of the code

h - check matrix

NiederreiterPublicKey

protected NiederreiterPublicKey(NiederreiterPublicKeySpec keySpec)

Constructor, used by NiederreiterKeyFactory.

Parameters:

keySpec - a NiederreiterPublicKeySpec

Method Detail

getAlgorithm

public java.lang.String getAlgorithm()

Return the name of the algorithm.

Returns:

"Niederreiter"

getN

public int getN()

Returns:

the length of the code

getT

public int getT()

Returns:

the error correction capability of the code

getK

public int getK()

Returns:

the dimension of the code

getH

public GF2Matrix getH()

Returns:

the check matrix

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

a human readable form of the key.

equals

public boolean equals(java.lang.Object other)

Compare this key with another object.

Overrides:

equals in class java.lang.Object

Parameters:

other - the other object

Returns:

the result of the comparison

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

Returns:

the hash code of this key

getOID

protected codec.asn1.ASN1ObjectIdentifier getOID()

Overrides:

getOID in class PublicKey

Returns:

the OID to encode in the SubjectPublicKeyInfo structure

getAlgParams

protected codec.asn1.ASN1Type getAlgParams()

Overrides:

getAlgParams in class PublicKey

Returns:

the algorithm parameters to encode in the SubjectPublicKeyInfo structure

getKeyData

protected byte[] getKeyData()

Return the key data to encode in the SubjectPublicKeyInfo structure.

The ASN.1 definition of the key structure is

 NiederreiterPublicKey ::= SEQUENCE {
   n   INTEGER       -- the length of the code
   t   INTEGER       -- the error correcting capability
   h   OCTET STRING  -- the encoded check matrix
 }
 

Overrides:

getKeyData in class PublicKey

Returns:

the keyData to encode in the SubjectPublicKeyInfo structure