de.alpharogroup.crypto.factories

Class KeyPairFactory

java.lang.Object

de.alpharogroup.crypto.factories.KeyPairFactory

public class KeyPairFactory
extends Object

The factory class KeyPairFactory holds methods for creating KeyPair objects.

Constructor Summary

Constructors

Constructor and Description
KeyPairFactory()

Method Summary

Modifier and Type	Method and Description
static KeyPair	newKeyPair(Algorithm algorithm, int keySize) Factory method for creating a new KeyPair from the given algorithm and key size.
static KeyPair	newKeyPair(Algorithm algorithm, KeySize keySize) Factory method for creating a new KeyPair from the given algorithm and KeySize.
static KeyPair	newKeyPair(File publicKeyDerFile, File privateKeyDerFile) Factory method for creating a new KeyPair from the given parameters.
static KeyPair	newKeyPair(PublicKey publicKey, PrivateKey privateKey) Factory method for creating a new KeyPair from the given parameters.
static KeyPair	newKeyPair(String algorithm, int keySize) Factory method for creating a new KeyPair from the given parameters.
static KeyPairGenerator	newKeyPairGenerator(String algorithm, int keySize) Factory method for creating a new KeyPairGenerator from the given parameters.
static KeyPairGenerator	newKeyPairGenerator(String algorithm, int keySize, SecureRandom secureRandom) Factory method for creating a new KeyPairGenerator from the given parameters.

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyPairFactory

public KeyPairFactory()

Method Detail

newKeyPair

public static KeyPair newKeyPair(Algorithm algorithm,
                                 KeySize keySize)
                          throws NoSuchAlgorithmException

Factory method for creating a new KeyPair from the given algorithm and KeySize.

Parameters:

algorithm - the algorithm

keySize - the key size as enum

Returns:

the new KeyPair from the given salt and iteration count.

Throws:

NoSuchAlgorithmException - the no such algorithm exception

newKeyPair

public static KeyPair newKeyPair(Algorithm algorithm,
                                 int keySize)
                          throws NoSuchAlgorithmException

Factory method for creating a new KeyPair from the given algorithm and key size.

Parameters:

algorithm - the algorithm

keySize - the key size

Returns:

the new KeyPair from the given salt and iteration count.

Throws:

NoSuchAlgorithmException - the no such algorithm exception

newKeyPair

public static KeyPair newKeyPair(String algorithm,
                                 int keySize)
                          throws NoSuchAlgorithmException

Factory method for creating a new KeyPair from the given parameters.

Parameters:

algorithm - the algorithm

keySize - the key size

Returns:

the new KeyPair from the given parameters.

Throws:

NoSuchAlgorithmException - the no such algorithm exception

newKeyPair

public static KeyPair newKeyPair(PublicKey publicKey,
                                 PrivateKey privateKey)

Factory method for creating a new KeyPair from the given parameters.

Parameters:

publicKey - the public key

privateKey - the private key

Returns:

the new KeyPair from the given parameters.

newKeyPair

public static KeyPair newKeyPair(File publicKeyDerFile,
                                 File privateKeyDerFile)
                          throws NoSuchAlgorithmException,
                                 InvalidKeySpecException,
                                 NoSuchProviderException,
                                 IOException

Factory method for creating a new KeyPair from the given parameters.

Parameters:

publicKeyDerFile - the public key der file

privateKeyDerFile - the private key der file

Returns:

the new KeyPair from the given parameters. *

Throws:

IOException - Signals that an I/O exception has occurred.

NoSuchAlgorithmException - is thrown if instantiation of the cypher object fails.

InvalidKeySpecException - is thrown if generation of the SecretKey object fails.

NoSuchProviderException - is thrown if the specified provider is not registered in the security provider list.

newKeyPairGenerator

public static KeyPairGenerator newKeyPairGenerator(String algorithm,
                                                   int keySize)
                                            throws NoSuchAlgorithmException

Factory method for creating a new KeyPairGenerator from the given parameters.

Parameters:

algorithm - the algorithm

keySize - the key size

Returns:

the new KeyPairGenerator from the given parameters.

Throws:

NoSuchAlgorithmException - is thrown if no Provider supports a KeyPairGeneratorSpi implementation for the specified algorithm.

newKeyPairGenerator

public static KeyPairGenerator newKeyPairGenerator(String algorithm,
                                                   int keySize,
                                                   SecureRandom secureRandom)
                                            throws NoSuchAlgorithmException

Factory method for creating a new KeyPairGenerator from the given parameters.

Parameters:

algorithm - the algorithm

keySize - the key size

secureRandom - the secure random

Returns:

the new KeyPairGenerator from the given parameters.

Throws:

NoSuchAlgorithmException - is thrown if no Provider supports a KeyPairGeneratorSpi implementation for the specified algorithm.