de.flexiprovider.nf.iq.iqrdsa
Class IQRDSAPrivateKey

java.lang.Object
  |
  +--de.flexiprovider.api.keys.PrivateKey
        |
        +--de.flexiprovider.nf.iq.iqrdsa.IQRDSAPrivateKey

All Implemented Interfaces:

java.security.Key, Key, java.security.PrivateKey, java.io.Serializable

public class IQRDSAPrivateKey

extends PrivateKey

Class for private keys pertaining to the IQRDSA algorithm

Author:

Ralf-P. Weinmann

See Also:

PrivateKey, Serialized Form

Fields inherited from interface java.security.Key

serialVersionUID

Fields inherited from interface java.security.PrivateKey

serialVersionUID

Constructor Summary

protected	IQRDSAPrivateKey(IQRDSAParameterSpec params, QuadraticIdeal gamma, QuadraticIdeal alpha, FlexiBigInt a) Construct an IQRDSA private key from the given parameters, public key value and base element of the NFDL-problem.
protected	IQRDSAPrivateKey(IQRDSAPrivateKeySpec keySpec) Construct an IQRDSA private key from the given key specification.

Method Summary

boolean	equals(java.lang.Object obj)
FlexiBigInt	getA()
java.lang.String	getAlgorithm() Returns the standard algorithm name for this key.
protected codec.asn1.ASN1Type	getAlgParams()
QuadraticIdeal	getAlpha()
QuadraticIdeal	getGamma()
protected byte[]	getKeyData()
protected codec.asn1.ASN1ObjectIdentifier	getOID()
IQRDSAParameterSpec	getParams()
int	hashCode()
java.lang.String	toString()

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

getEncoded, getFormat

Methods inherited from class java.lang.Object

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

Constructor Detail

IQRDSAPrivateKey

protected IQRDSAPrivateKey(IQRDSAParameterSpec params,
                           QuadraticIdeal gamma,
                           QuadraticIdeal alpha,
                           FlexiBigInt a)

Construct an IQRDSA private key from the given parameters, public key value and base element of the NFDL-problem.

Parameters:

params - parameters consisting of gamma and prime modulus

gamma - the base element of the NFDL-problem

alpha - the public key value

a - the private key value

IQRDSAPrivateKey

protected IQRDSAPrivateKey(IQRDSAPrivateKeySpec keySpec)

Construct an IQRDSA private key from the given key specification.

Parameters:

keySpec - the key specification

Method Detail

getAlgorithm

public java.lang.String getAlgorithm()

Returns the standard algorithm name for this key.

Returns:

the name of the algorithm associated with this key.

getParams

public IQRDSAParameterSpec getParams()

Returns:

the parameters

getGamma

public QuadraticIdeal getGamma()

Returns:

gamma

getAlpha

public QuadraticIdeal getAlpha()

Returns:

alpha

getA

public FlexiBigInt getA()

Returns:

a

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 obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

getAlgParams

protected codec.asn1.ASN1Type getAlgParams()

Overrides:

getAlgParams in class PrivateKey

Following copied from class: de.flexiprovider.api.keys.PrivateKey

Returns:

the algorithm parameters to encode in the SubjectPublicKeyInfo structure

getKeyData

protected byte[] getKeyData()

Overrides:

getKeyData in class PrivateKey

Following copied from class: de.flexiprovider.api.keys.PrivateKey

Returns:

the keyData to encode in the SubjectPublicKeyInfo structure

getOID

protected codec.asn1.ASN1ObjectIdentifier getOID()

Overrides:

getOID in class PrivateKey

Following copied from class: de.flexiprovider.api.keys.PrivateKey

Returns:

the OID to encode in the SubjectPublicKeyInfo structure