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 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()