org.cryptacular.generator

Class KeyPairGenerator

java.lang.Object

org.cryptacular.generator.KeyPairGenerator

public final class KeyPairGenerator
extends java.lang.Object

Static factory that generates various types of asymmetric key pairs.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	KeyPairGenerator() Private constructor of static factory.

Method Summary

Modifier and Type	Method and Description
static java.security.KeyPair	generateDSA(java.security.SecureRandom random, int bitLength) Generates a DSA key pair.
static java.security.KeyPair	generateEC(java.security.SecureRandom random, int bitLength) Generates a EC key pair.
static java.security.KeyPair	generateEC(java.security.SecureRandom random, java.lang.String namedCurve) Generates a EC key pair.
static java.security.KeyPair	generateRSA(java.security.SecureRandom random, int bitLength) Generates a RSA key pair.

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyPairGenerator

private KeyPairGenerator()

Private constructor of static factory.

Method Detail

generateDSA

public static java.security.KeyPair generateDSA(java.security.SecureRandom random,
                                                int bitLength)

Generates a DSA key pair.

Parameters:

random - Random source required for key generation.

bitLength - Desired key size in bits.

Returns:

DSA key pair of desired size.

generateRSA

public static java.security.KeyPair generateRSA(java.security.SecureRandom random,
                                                int bitLength)

Generates a RSA key pair.

Parameters:

random - Random source required for key generation.

bitLength - Desired key size in bits.

Returns:

RSA key pair of desired size.

generateEC

public static java.security.KeyPair generateEC(java.security.SecureRandom random,
                                               int bitLength)

Generates a EC key pair.

Parameters:

random - Random source required for key generation.

bitLength - Desired key size in bits.

Returns:

EC key pair of desired size.

generateEC

public static java.security.KeyPair generateEC(java.security.SecureRandom random,
                                               java.lang.String namedCurve)

Generates a EC key pair.

Parameters:

random - Random source required for key generation.

namedCurve - Well-known elliptic curve name that includes domain parameters including key size.

Returns:

EC key pair according to named curve.