Package net.i2p.crypto.eddsa

Class KeyPairGenerator

java.lang.Object

java.security.KeyPairGeneratorSpi

net.i2p.crypto.eddsa.KeyPairGenerator

Direct Known Subclasses:

RedKeyPairGenerator

public class KeyPairGenerator
extends KeyPairGeneratorSpi

Default keysize is 256 (Ed25519)

Since:

0.9.15

Field Summary

Fields

Modifier and Type	Field	Description
protected static final int	DEFAULT_KEYSIZE
protected EdDSAParameterSpec	edParams
protected boolean	initialized
protected SecureRandom	random

Constructor Summary

Constructors

Constructor	Description
KeyPairGenerator()

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_KEYSIZE

protected static final int DEFAULT_KEYSIZE

See Also:

• Constant Field Values

edParams

protected EdDSAParameterSpec edParams

random

protected SecureRandom random

initialized

protected boolean initialized

Constructor Details

KeyPairGenerator

public KeyPairGenerator()

Method Details

initialize

public void initialize(int keysize,
 SecureRandom random)

Specified by:

initialize in class KeyPairGeneratorSpi

initialize

public void initialize(AlgorithmParameterSpec params,
 SecureRandom random)
                throws InvalidAlgorithmParameterException

Overrides:

initialize in class KeyPairGeneratorSpi

Throws:

InvalidAlgorithmParameterException

generateKeyPair

public KeyPair generateKeyPair()

Specified by:

generateKeyPair in class KeyPairGeneratorSpi

createNamedCurveSpec

protected EdDSANamedCurveSpec createNamedCurveSpec(String curveName)
                                            throws 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:

InvalidAlgorithmParameterException - if the named curve is unknown.