KeyPairGenerator (Javadocs [I2P+ 2.13.0+]

java.lang.Object
- java.security.KeyPairGeneratorSpi
- - net.i2p.crypto.eddsa.KeyPairGenerator

Direct Known Subclasses:
RedKeyPairGenerator
```
public class KeyPairGenerator
extends KeyPairGeneratorSpi
```
Key pair generator for EdDSA (Edwards-curve Digital Signature Algorithm) keys. This implementation generates EdDSA key pairs with a default key size of 256 bits using the Ed25519 curve, which provides strong security with excellent performance characteristics. EdDSA is the recommended signature algorithm for new I2P applications.
Generated keys are suitable for:
- Digital signatures and verification
- I2P destination keys
- Router identity and communication
See Also:
RFC 8032 - EdDSA

Field Summary

Fields
Modifier and Type	Field and Description
`protected static int`	`DEFAULT_KEYSIZE` DEFAULT_KEYSIZE.
`protected EdDSAParameterSpec`	`edParams` EdDSA parameter specification, set by initialize().
`protected boolean`	`initialized` Whether the generator has been initialized.
`protected SecureRandom`	`random` The random number source, set by initialize().

Constructor Summary
Constructors
Constructor and Description
KeyPairGenerator()

Constructors
Constructor and Description
`KeyPairGenerator()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected EdDSANamedCurveSpec`	`createNamedCurveSpec(String curveName)` Create an EdDSANamedCurveSpec from the provided curve name.
`KeyPair`	`generateKeyPair()`
`void`	`initialize(AlgorithmParameterSpec params, SecureRandom random)` Initialize with the given parameter spec.
`void`	`initialize(int keysize, SecureRandom random)` Initialize with the given key size.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DEFAULT_KEYSIZE
```
protected static final int DEFAULT_KEYSIZE
```
    DEFAULT_KEYSIZE.
    See Also:
    Constant Field Values
  - edParams
```
protected EdDSAParameterSpec edParams
```
    EdDSA parameter specification, set by initialize().
  - initialized
```
protected boolean initialized
```
    Whether the generator has been initialized.
  - random
```
protected SecureRandom random
```
    The random number source, set by initialize().
- Constructor Detail
  - KeyPairGenerator
```
public KeyPairGenerator()
```
- Method Detail
  - 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.
  - generateKeyPair
```
public KeyPair generateKeyPair()
```
    Specified by:
    generateKeyPair in class KeyPairGeneratorSpi
    Returns:
    the generated key pair
  - initialize
```
public void initialize(AlgorithmParameterSpec params,
                       SecureRandom random)
                throws InvalidAlgorithmParameterException
```
    Initialize with the given parameter spec.
    Overrides:
    initialize in class KeyPairGeneratorSpi
    Throws:
    InvalidAlgorithmParameterException
  - initialize
```
public void initialize(int keysize,
                       SecureRandom random)
```
    Initialize with the given key size.
    Specified by:
    initialize in class KeyPairGeneratorSpi

Class KeyPairGenerator

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_KEYSIZE

edParams

initialized

random

Constructor Detail

KeyPairGenerator

Method Detail

createNamedCurveSpec

generateKeyPair

initialize

initialize