net.i2p.crypto.eddsa.spec

Class EdDSAPrivateKeySpec

java.lang.Object

net.i2p.crypto.eddsa.spec.EdDSAPrivateKeySpec

All Implemented Interfaces:

java.security.spec.KeySpec

public class EdDSAPrivateKeySpec
extends java.lang.Object
implements java.security.spec.KeySpec

Field Summary

Fields

Modifier and Type	Field and Description
private byte[]	a
private GroupElement	A
private byte[]	h
private byte[]	seed
private EdDSAParameterSpec	spec

Constructor Summary

Constructors

Constructor and Description
EdDSAPrivateKeySpec(byte[] seed, byte[] h, byte[] a, GroupElement A, EdDSAParameterSpec spec)
EdDSAPrivateKeySpec(byte[] seed, EdDSAParameterSpec spec)
EdDSAPrivateKeySpec(EdDSAParameterSpec spec, byte[] h) Initialize directly from the hash.

Method Summary

Modifier and Type	Method and Description
byte[]	geta()
GroupElement	getA()
byte[]	getH()
EdDSAParameterSpec	getParams()
byte[]	getSeed()

Methods inherited from class java.lang.Object

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

Field Detail

seed

private final byte[] seed

h

private final byte[] h

a

private final byte[] a

A

private final GroupElement A

spec

private final EdDSAParameterSpec spec

Constructor Detail

EdDSAPrivateKeySpec

public EdDSAPrivateKeySpec(byte[] seed,
                           EdDSAParameterSpec spec)

Parameters:

seed - the private key

spec - the parameter specification for this key

Throws:

java.lang.IllegalArgumentException - if seed length is wrong or hash algorithm is unsupported

EdDSAPrivateKeySpec

public EdDSAPrivateKeySpec(EdDSAParameterSpec spec,
                           byte[] h)

Initialize directly from the hash. getSeed() will return null if this constructor is used.

Parameters:

spec - the parameter specification for this key

h - the private key

Throws:

java.lang.IllegalArgumentException - if hash length is wrong

Since:

0.1.1

EdDSAPrivateKeySpec

public EdDSAPrivateKeySpec(byte[] seed,
                           byte[] h,
                           byte[] a,
                           GroupElement A,
                           EdDSAParameterSpec spec)

Method Detail

getSeed

public byte[] getSeed()

Returns:

will be null if constructed directly from the private key

getH

public byte[] getH()

Returns:

the hash

geta

public byte[] geta()

Returns:

the private key

getA

public GroupElement getA()

Returns:

the public key

getParams

public EdDSAParameterSpec getParams()