de.flexiprovider.core.rsa
Class RSAKeyPairGenerator

java.lang.Object
  |
  +--java.security.KeyPairGeneratorSpi
        |
        +--de.flexiprovider.api.keys.KeyPairGenerator
              |
              +--de.flexiprovider.core.rsa.interfaces.RSAKeyPairGenerator
                    |
                    +--de.flexiprovider.core.rsa.RSAKeyPairGenerator

public final class RSAKeyPairGenerator

extends RSAKeyPairGenerator

This class extends the KeyPairGenerator class. The key generation follows the PKCS#1 standard. The algorithm strength translates directly to the bit length of the modulus n = p*q. A key pair consists of an RSAPublicKey and an RSAPrivateCrtKey. The default bit length of n is 1024.

Author:

Thomas Wahrenbruch, Martin Döring

Constructor Summary

RSAKeyPairGenerator()

Method Summary

KeyPair	genKeyPair() Generate an RSA key pair.
void	initialize(AlgorithmParameterSpec params, SecureRandom random) Initialize the key pair generator with the given parameters and source of randomness.
void	initialize(int keySize, SecureRandom random) Initialize the key pair generator with the given key size.

Methods inherited from class de.flexiprovider.core.rsa.interfaces.RSAKeyPairGenerator

initialize

Methods inherited from class de.flexiprovider.api.keys.KeyPairGenerator

generateKeyPair, initialize

Methods inherited from class java.lang.Object

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

Constructor Detail

RSAKeyPairGenerator

public RSAKeyPairGenerator()

Method Detail

initialize

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

Initialize the key pair generator with the given parameters and source of randomness. If the parameters are null, the default parameters are used.

Overrides:

initialize in class KeyPairGenerator

Parameters:

params - the key generation parameters

random - the source of randomness

Throws:

InvalidAlgorithmParameterException - if the parameters are not an instance of RSAKeyGenParameterSpec.

initialize

public void initialize(int keySize,
                       SecureRandom random)

Initialize the key pair generator with the given key size.

Overrides:

initialize in class KeyPairGenerator

Parameters:

keySize - the bit length of the modulus n

random - the source of randomness

genKeyPair

public KeyPair genKeyPair()

Generate an RSA key pair.

Overrides:

genKeyPair in class KeyPairGenerator

Returns:

the key pair, consisting of an RSAPrivateCrtKey and an RSAPublicKey