net.i2p.crypto.eddsa

Class EdDSAPrivateKey

java.lang.Object

net.i2p.crypto.eddsa.EdDSAPrivateKey

All Implemented Interfaces:

Serializable, Key, PrivateKey, EdDSAKey

public class EdDSAPrivateKey
extends Object
implements EdDSAKey, PrivateKey

An EdDSA private key.

Warning: Private key encoding is not fully specified in the current IETF draft. This implementation uses PKCS#8 encoding, and is subject to change. See getEncoded().

Ref: https://tools.ietf.org/html/draft-josefsson-pkix-eddsa-04

Author:

str4d

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
EdDSAPrivateKey(EdDSAPrivateKeySpec spec)
EdDSAPrivateKey(PKCS8EncodedKeySpec spec)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object o)
byte[]	geta()
GroupElement	getA()
byte[]	getAbyte()
String	getAlgorithm()
byte[]	getEncoded() This follows the docs from java.security.spec.PKCS8EncodedKeySpec quote:
String	getFormat()
byte[]	getH()
EdDSAParameterSpec	getParams() return a parameter specification representing the EdDSA domain parameters for the key.
byte[]	getSeed()
int	hashCode()

Methods inherited from class java.lang.Object

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

Constructor Detail

EdDSAPrivateKey

public EdDSAPrivateKey(EdDSAPrivateKeySpec spec)

EdDSAPrivateKey

public EdDSAPrivateKey(PKCS8EncodedKeySpec spec)
                throws InvalidKeySpecException

Throws:

InvalidKeySpecException

Method Detail

getAlgorithm

public String getAlgorithm()

Specified by:

getAlgorithm in interface Key

getFormat

public String getFormat()

Specified by:

getFormat in interface Key

getEncoded

public byte[] getEncoded()

This follows the docs from java.security.spec.PKCS8EncodedKeySpec quote:

  The PrivateKeyInfo syntax is defined in the PKCS#8 standard as follows:
  PrivateKeyInfo ::= SEQUENCE {
    version Version,
    privateKeyAlgorithm PrivateKeyAlgorithmIdentifier,
    privateKey PrivateKey,
    attributes [0] IMPLICIT Attributes OPTIONAL }
  Version ::= INTEGER
  PrivateKeyAlgorithmIdentifier ::= AlgorithmIdentifier
  PrivateKey ::= OCTET STRING
  Attributes ::= SET OF Attribute

  AlgorithmIdentifier ::= SEQUENCE
  {
    algorithm           OBJECT IDENTIFIER,
    parameters          ANY OPTIONAL
  }

Ref: https://tools.ietf.org/html/draft-josefsson-pkix-eddsa-04 Note that the private key encoding is not fully specified in the Josefsson draft version 04, and the example could be wrong, as it's lacking Version and AlgorithmIdentifier. This will hopefully be clarified in the next draft. But sun.security.pkcs.PKCS8Key expects them so we must include them for keytool to work.

Specified by:

getEncoded in interface Key

Returns:

49 bytes for Ed25519, null for other curves

getParams

public EdDSAParameterSpec getParams()

Description copied from interface: EdDSAKey

return a parameter specification representing the EdDSA domain parameters for the key.

Specified by:

getParams in interface EdDSAKey

getSeed

public byte[] getSeed()

getH

public byte[] getH()

geta

public byte[] geta()

getA

public GroupElement getA()

getAbyte

public byte[] getAbyte()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object