cz.d1x.dxcrypto.encryption

Class EncryptionAlgorithms

java.lang.Object

cz.d1x.dxcrypto.encryption.EncryptionAlgorithms

public class EncryptionAlgorithms
extends Object

Factory that provides builders for available encryption algorithms. Create a new builder and when you are done with parameters, call build() to retrieve EncryptionAlgorithm instance.

Author:

Zdenek Obst, zdenek.obst-at-gmail.com

Constructor Summary

Constructors

Constructor and Description
EncryptionAlgorithms()

Method Summary

Modifier and Type	Method and Description
static SymmetricAlgorithmBuilder	aes() Creates a new builder for AES (128b) encryption.
static SymmetricAlgorithmBuilder	aes(byte[] keyPassword) Creates a new builder for AES (128b) encryption.
static SymmetricAlgorithmBuilder	aes(String keyPassword) Creates a new builder for AES (128b) encryption.
static SymmetricAlgorithmBuilder	aes256() Creates a new builder for AES (256b) encryption.
static SymmetricAlgorithmBuilder	aes256(byte[] keyPassword) Creates a new builder for AES (256b) encryption.
static SymmetricAlgorithmBuilder	aes256(String keyPassword) Creates a new builder for AES (256b) encryption.
static void	defaultFactories(EncryptionFactories factories) Sets a new global factories for encryption engines.
static RSAAlgorithmBuilder	rsa() Creates a new builder for RSA encryption.
static SymmetricAlgorithmBuilder	tripleDes() Creates a new builder for 3DES encryption.
static SymmetricAlgorithmBuilder	tripleDes(byte[] keyPassword) Creates a new builder for 3DES encryption.
static SymmetricAlgorithmBuilder	tripleDes(String keyPassword) Creates a new builder for 3DES encryption.

Methods inherited from class java.lang.Object

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

Constructor Detail

EncryptionAlgorithms

public EncryptionAlgorithms()

Method Detail

defaultFactories

public static void defaultFactories(EncryptionFactories factories)

Sets a new global factories for encryption engines. It defaults to CryptoFactories.

Parameters:

factories - factories to be set

aes

public static SymmetricAlgorithmBuilder aes(byte[] keyPassword)
                                     throws IllegalArgumentException

Creates a new builder for AES (128b) encryption. Engine for encryption is dependent on defaultFactories(EncryptionFactories) which defaults to CryptoFactories that uses standard Java API implementations (you can read CryptoFactories javadoc that describes what parameters it uses for encryption algorithms).

Parameters:

keyPassword - password for key derivation

Returns:

builder for AES encryption

Throws:

IllegalArgumentException - exception if passed key password is null

aes

public static SymmetricAlgorithmBuilder aes(String keyPassword)
                                     throws IllegalArgumentException

Creates a new builder for AES (128b) encryption. Engine for encryption is dependent on defaultFactories(EncryptionFactories) which defaults to CryptoFactories that uses standard Java API implementations (you can read CryptoFactories javadoc that describes what parameters it uses for encryption algorithms).

Parameters:

keyPassword - password for key derivation

Returns:

builder for AES encryption algorithm

Throws:

IllegalArgumentException - exception if passed key password is null

aes

public static SymmetricAlgorithmBuilder aes()

Creates a new builder for AES (128b) encryption. Engine for encryption is dependent on defaultFactories(EncryptionFactories) which defaults to CryptoFactories that uses standard Java API implementations (you can read CryptoFactories javadoc that describes what parameters it uses for encryption algorithms).

Note that during build process, you must call one of methods for specifying encryption key. The methods are

• SymmetricAlgorithmBuilder.keyPassword(byte[])
• SymmetricAlgorithmBuilder.key(byte[])
• SymmetricAlgorithmBuilder.keyFactory(EncryptionKeyFactory)

Returns:

builder for AES encryption algorithm

Throws:

IllegalArgumentException - exception if passed key password is null

aes256

public static SymmetricAlgorithmBuilder aes256(byte[] keyPassword)
                                        throws IllegalArgumentException

Creates a new builder for AES (256b) encryption. Engine for encryption is dependent on defaultFactories(EncryptionFactories) which defaults to CryptoFactories that uses standard Java API implementations (you can read CryptoFactories javadoc that describes what parameters it uses for encryption algorithms).

Note that if you use default CryptoFactories, you may need JCE installed for AES-256.

Parameters:

keyPassword - password for key derivation

Returns:

builder for AES encryption

Throws:

IllegalArgumentException - exception if passed key password is null

aes256

public static SymmetricAlgorithmBuilder aes256(String keyPassword)
                                        throws IllegalArgumentException

Creates a new builder for AES (256b) encryption. Engine for encryption is dependent on defaultFactories(EncryptionFactories) which defaults to CryptoFactories that uses standard Java API implementations (you can read CryptoFactories javadoc that describes what parameters it uses for encryption algorithms) .

Note that if you use default CryptoFactories, you may need JCE installed for AES-256.

Parameters:

keyPassword - password for key derivation

Returns:

builder for AES encryption algorithm

Throws:

IllegalArgumentException - exception if passed key password is null

aes256

public static SymmetricAlgorithmBuilder aes256()

Creates a new builder for AES (256b) encryption. Engine for encryption is dependent on defaultFactories(EncryptionFactories) which defaults to CryptoFactories that uses standard Java API implementations (you can read CryptoFactories javadoc that describes what parameters it uses for encryption algorithms).

Note that during build process, you must call one of methods for specifying encryption key. The methods are

• SymmetricAlgorithmBuilder.keyPassword(byte[])
• SymmetricAlgorithmBuilder.key(byte[])
• SymmetricAlgorithmBuilder.keyFactory(EncryptionKeyFactory)

Returns:

builder for AES encryption algorithm

Throws:

IllegalArgumentException - exception if passed key password is null

tripleDes

public static SymmetricAlgorithmBuilder tripleDes(byte[] keyPassword)
                                           throws IllegalArgumentException

Creates a new builder for 3DES encryption. Engine for encryption is dependent on defaultFactories(EncryptionFactories) which defaults to CryptoFactories that uses standard Java API implementations (you can read CryptoFactories javadoc that describes what parameters it uses for encryption algorithms).

Parameters:

keyPassword - password for key derivation

Returns:

builder for 3DES encryption algorithm

Throws:

IllegalArgumentException - exception if passed key password is null

tripleDes

public static SymmetricAlgorithmBuilder tripleDes(String keyPassword)
                                           throws IllegalArgumentException

Creates a new builder for 3DES encryption. Engine for encryption is dependent on defaultFactories(EncryptionFactories) which defaults to CryptoFactories that uses standard Java API implementations (you can read CryptoFactories javadoc that describes what parameters it uses for encryption algorithms).

Parameters:

keyPassword - password for key derivation

Returns:

builder for 3DES encryption algorithm

Throws:

IllegalArgumentException - exception if passed key password is null

tripleDes

public static SymmetricAlgorithmBuilder tripleDes()

Creates a new builder for 3DES encryption. Engine for encryption is dependent on defaultFactories(EncryptionFactories) which defaults to CryptoFactories that uses standard Java API implementations (you can read CryptoFactories javadoc that describes what parameters it uses for encryption algorithms).

Note that during build process, you must call one of methods for specifying encryption key. The methods are

• SymmetricAlgorithmBuilder.keyPassword(byte[])
• SymmetricAlgorithmBuilder.key(byte[])
• SymmetricAlgorithmBuilder.keyFactory(EncryptionKeyFactory)

Returns:

builder for AES encryption algorithm

Throws:

IllegalArgumentException - exception if passed key password is null

rsa

public static RSAAlgorithmBuilder rsa()

Creates a new builder for RSA encryption. Engine for encryption is dependent on defaultFactories(EncryptionFactories) which defaults to CryptoFactories that uses standard Java API implementations (you can read CryptoFactories javadoc that describes what parameters it uses for encryption algorithms).

Returns:

builder for RSA encryption algorithm