net.i2p.crypto.eddsa

Class KeyPairGenerator

java.lang.Object

java.security.KeyPairGeneratorSpi

net.i2p.crypto.eddsa.KeyPairGenerator

public final class KeyPairGenerator
extends java.security.KeyPairGeneratorSpi

Default keysize is 256 (Ed25519)

Field Summary

Fields

Modifier and Type	Field and Description
private static int	DEFAULT_KEYSIZE
private static java.util.Hashtable<java.lang.Integer,java.security.spec.AlgorithmParameterSpec>	edParameters
private EdDSAParameterSpec	edParams
private boolean	initialized
private java.security.SecureRandom	random

Constructor Summary

Constructors

Constructor and Description
KeyPairGenerator()

Method Summary

Modifier and Type	Method and Description
protected EdDSANamedCurveSpec	createNamedCurveSpec(java.lang.String curveName) Create an EdDSANamedCurveSpec from the provided curve name.
java.security.KeyPair	generateKeyPair()
void	initialize(java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random)
void	initialize(int keysize, java.security.SecureRandom random)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_KEYSIZE

private static final int DEFAULT_KEYSIZE

See Also:

Constant Field Values

edParams

private EdDSAParameterSpec edParams

random

private java.security.SecureRandom random

initialized

private boolean initialized

edParameters

private static final java.util.Hashtable<java.lang.Integer,java.security.spec.AlgorithmParameterSpec> edParameters

Constructor Detail

KeyPairGenerator

public KeyPairGenerator()

Method Detail

initialize

public void initialize(int keysize,
                       java.security.SecureRandom random)

Specified by:

initialize in class java.security.KeyPairGeneratorSpi

initialize

public void initialize(java.security.spec.AlgorithmParameterSpec params,
                       java.security.SecureRandom random)
                throws java.security.InvalidAlgorithmParameterException

Overrides:

initialize in class java.security.KeyPairGeneratorSpi

Throws:

java.security.InvalidAlgorithmParameterException

generateKeyPair

public java.security.KeyPair generateKeyPair()

Specified by:

generateKeyPair in class java.security.KeyPairGeneratorSpi

createNamedCurveSpec

protected EdDSANamedCurveSpec createNamedCurveSpec(java.lang.String curveName)
                                            throws java.security.InvalidAlgorithmParameterException

Create an EdDSANamedCurveSpec from the provided curve name. The current implementation fetches the pre-created curve spec from a table.

Parameters:

curveName - the EdDSA named curve.

Returns:

the specification for the named curve.

Throws:

java.security.InvalidAlgorithmParameterException - if the named curve is unknown.