EdDSAPublicKeySpec | Javadocs [I2P+]

java.lang.Object

net.i2p.crypto.eddsa.spec.EdDSAPublicKeySpec

All Implemented Interfaces:: KeySpec

public class EdDSAPublicKeySpecextends Object implements KeySpec

EdDSA public key specification.

Field Summary
Fields
Modifier and Type
Field
Description
private final GroupElement
A
The public key's point.
private GroupElement
Aneg
The negated point, computed on first use.
private final EdDSAParameterSpec
spec
The curve parameters the key belongs to.
Constructor Summary
Constructors
Constructor
Description
EdDSAPublicKeySpec(byte[] pk, EdDSAParameterSpec spec)
Create a new EdDSA public key specification from a byte array.
EdDSAPublicKeySpec(GroupElement aPoint, EdDSAParameterSpec spec)
Public key specification from a group element.
Method Summary
All Methods
Modifier and Type
Method
Description
GroupElement
getA()
Returns the public key group element.
GroupElement
getNegativeA()
Returns the negation of the public key group element.
EdDSAParameterSpec
getParams()
Returns the parameter specification for this key.
Methods inherited from class Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- A
  private final GroupElement A
  The public key's point.
- Aneg
  private GroupElement Aneg
  The negated point, computed on first use.
- spec
  private final EdDSAParameterSpec spec
  The curve parameters the key belongs to.
Constructor Details
- EdDSAPublicKeySpec
  public EdDSAPublicKeySpec(byte[] pk, EdDSAParameterSpec spec)
  Create a new EdDSA public key specification from a byte array.
  Parameters:
  pk - the public key
  spec - the parameter specification for this key
  Throws:
  IllegalArgumentException - if key length is wrong
- EdDSAPublicKeySpec
  public EdDSAPublicKeySpec(GroupElement aPoint, EdDSAParameterSpec spec)
  Public key specification from a group element.
  Parameters:
  aPoint - The public key group element.
  spec - The parameter specification for this key.
Method Details
- getA
  public GroupElement getA()
  Returns the public key group element.
  Returns:
  the public key group element
- getNegativeA
  public GroupElement getNegativeA()
  Returns the negation of the public key group element. The result is lazily computed and cached.
  Returns:
  the negated public key group element
- getParams
  public EdDSAParameterSpec getParams()
  Returns the parameter specification for this key.
  Returns:
  the parameter specification