Package net.i2p.crypto.eddsa.spec

Class EdDSAPrivateKeySpec

java.lang.Object

net.i2p.crypto.eddsa.spec.EdDSAPrivateKeySpec

All Implemented Interfaces:

KeySpec

public class EdDSAPrivateKeySpec
extends Object
implements KeySpec

Since:

0.9.15

Author:

str4d

Constructor Summary

Constructors

Constructor	Description
EdDSAPrivateKeySpec(byte[] seed, byte[] h, byte[] a, GroupElement A, EdDSAParameterSpec spec)	No validation of any parameters other than a.
EdDSAPrivateKeySpec(byte[] a, GroupElement A, EdDSAParameterSpec spec)	No validation of any parameters other than a.
EdDSAPrivateKeySpec(byte[] seed, EdDSAParameterSpec spec)
EdDSAPrivateKeySpec(EdDSAParameterSpec spec, byte[] h)	Initialize directly from the hash.

Method Summary

Modifier and Type	Method	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

Constructor Details

EdDSAPrivateKeySpec

public EdDSAPrivateKeySpec(byte[] seed,
 EdDSAParameterSpec spec)

Parameters:

seed - the private key

spec - the parameter specification for this key

Throws:

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:

IllegalArgumentException - if hash length is wrong

Since:

0.9.27 (GitHub issue #17)

EdDSAPrivateKeySpec

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

No validation of any parameters other than a. getSeed() and getH() will return null if this constructor is used.

Parameters:

a - must be "clamped" (for Ed) or reduced mod l (for Red)

A - if null, will be derived from a.

Throws:

IllegalArgumentException - if a not clamped or reduced

Since:

0.9.39

EdDSAPrivateKeySpec

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

No validation of any parameters other than a.

Parameters:

seed - may be null

h - may be null

a - must be "clamped" (for Ed) or reduced mod l (for Red)

A - if null, will be derived from a.

Throws:

IllegalArgumentException - if a not clamped or reduced

Method Details

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()