SHOW Signed

net.rim.device.api.crypto
Class TripleDESEncryptorEngine

java.lang.Object
  |
  +--net.rim.device.api.crypto.TripleDESEncryptorEngine

All Implemented Interfaces:

BlockEncryptorEngine, SymmetricKeyEncryptorEngine

public final class TripleDESEncryptorEngine

extends Object

implements SymmetricKeyEncryptorEngine

Implements the raw functionality of the TripleDES algorithm.

We implemented TripleDES as it's defined in NIST's FIPS 46-3.

For a code sample using the Triple DES encryptor engine, click here.

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

Since:

JDE 3.6.0

See Also:

TripleDESDecryptorEngine, TripleDESKey

Field Summary

static int

BLOCK_LENGTH The block length, in bytes, for the algorithm, namely 8 bytes.

Constructor Summary

TripleDESEncryptorEngine(TripleDESKey key) Creates a TripleDESEncryptorEngine object based upon a TripleDES key as input, and initializes this key for use with the algorithm.

Method Summary

	void	encrypt(byte[] plaintext, int plaintextOffset, byte[] ciphertext, int ciphertextOffset) Encrypts a block of the given plaintext into a block of ciphertext.
	String	getAlgorithm() Returns the name of the algorithm used, ie "TripleDES".
	int	getBlockLength() Returns the block length of the engine in bytes.

Methods inherited from class java.lang.Object

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

Field Detail

BLOCK_LENGTH

public static final int BLOCK_LENGTH

The block length, in bytes, for the algorithm, namely 8 bytes.

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

Constructor Detail

TripleDESEncryptorEngine

public TripleDESEncryptorEngine(TripleDESKey key)
                         throws CryptoTokenException,
                                CryptoUnsupportedOperationException

Creates a TripleDESEncryptorEngine object based upon a TripleDES key as input, and initializes this key for use with the algorithm.

Parameters:

key - The TripleDESKey object to use for encryption.

Throws:

CryptoTokenException - Thrown when a problem occurs with the crypto token, or the crypto token is invalid.

CryptoUnsupportedOperationException - Thrown when a call is made to an unsupported operation.

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

Method Detail

getAlgorithm

public String getAlgorithm()

Returns the name of the algorithm used, ie "TripleDES".

This method will always return the String "TripleDES".

Specified by:

getAlgorithm in interface BlockEncryptorEngine

Returns:

A String that represents the name of the algorithm used to encrypt data.

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

getBlockLength

public int getBlockLength()

Description copied from interface: BlockEncryptorEngine

Returns the block length of the engine in bytes.

Specified by:

getBlockLength in interface BlockEncryptorEngine

Since:

JDE 3.6.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.

encrypt

public void encrypt(byte[] plaintext,
                    int plaintextOffset,
                    byte[] ciphertext,
                    int ciphertextOffset)
             throws CryptoTokenException

Description copied from interface: BlockEncryptorEngine

Encrypts a block of the given plaintext into a block of ciphertext.

Specified by:

encrypt in interface BlockEncryptorEngine

Since:

JDE 3.7.0

Category:

Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.