de.flexiprovider.pqc.ecc.mceliece
Class McEliecePublicKey

java.lang.Object
  |
  +--de.flexiprovider.api.keys.PublicKey
        |
        +--de.flexiprovider.pqc.ecc.mceliece.McEliecePublicKey

All Implemented Interfaces:

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

public class McEliecePublicKey

extends PublicKey

This class implements a McEliece public key and is usually instantiated by the McElieceKeyPairGenerator or McElieceKeyFactory.

Author:

Elena Klintsevich

See Also:

Serialized Form

Fields inherited from interface java.security.Key

serialVersionUID

Fields inherited from interface java.security.PublicKey

serialVersionUID

Constructor Summary

protected	McEliecePublicKey(int n, int t, GF2Matrix g) Constructor (used by the McElieceKeyPairGenerator).
protected	McEliecePublicKey(McEliecePublicKeySpec keySpec) Constructor (used by the McElieceKeyFactory).

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()
protected GF2Matrix	getG()
protected int	getK()
protected byte[]	getKeyData() Return the keyData to encode in the SubjectPublicKeyInfo structure.
protected int	getN()
protected codec.asn1.ASN1ObjectIdentifier	getOID()
protected 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

McEliecePublicKey

protected McEliecePublicKey(int n,
                            int t,
                            GF2Matrix g)

Constructor (used by the McElieceKeyPairGenerator).

Parameters:

n - the length of the code

t - the error correction capability of the code

g - the generator matrix

McEliecePublicKey

protected McEliecePublicKey(McEliecePublicKeySpec keySpec)

Constructor (used by the McElieceKeyFactory).

Parameters:

keySpec - a McEliecePublicKeySpec

Method Detail

getAlgorithm

public java.lang.String getAlgorithm()

Return the name of the algorithm.

Returns:

"McEliece"

getN

protected int getN()

Returns:

the length of the code

getK

protected int getK()

Returns:

the dimension of the code

getT

protected int getT()

Returns:

the error correction capability of the code

getG

protected GF2Matrix getG()

Returns:

the generator 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 keyData to encode in the SubjectPublicKeyInfo structure.

The ASN.1 definition of the key structure is

       McEliecePublicKey ::= SEQUENCE {
         n           Integer      -- length of the code
         t           Integer      -- error correcting capability
         matrixG     OctetString  -- generator matrix as octet string
       }
 

Overrides:

getKeyData in class PublicKey

Returns:

the keyData to encode in the SubjectPublicKeyInfo structure