SHOW Signed

net.rim.device.api.crypto
Class DESEncryptorEngine

java.lang.Object
  |
  +--net.rim.device.api.crypto.DESEncryptorEngine
All Implemented Interfaces:
BlockEncryptorEngine, SymmetricKeyEncryptorEngine

public final class DESEncryptorEngine
extends Object
implements SymmetricKeyEncryptorEngine

Implements the raw functionality of the DES algorithm. The class encrypts only on byte arrays of size block length and will throw an exception otherwise. DES is defined in FIPS 46-3.

For a code sample using the 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:
DESDecryptorEngine, EncryptorFactory

Field Summary
 Category: Signed static int BLOCK_LENGTH
          A public value stating the block length in bytes for the algorithm, namely 8 bytes.
 
Constructor Summary
 Category: Signed DESEncryptorEngine(DESKey key)
          Creates a DESEncryptorEngineobject given a DES key.
 
Method Summary
 Category: Signed  void encrypt(byte[] plaintext, int plaintextOffset, byte[] ciphertext, int ciphertextOffset)
          Encrypts a block of the given plaintext into a block of ciphertext.
 Category: Signed  String getAlgorithm()
          Returns the name of the algorithm used, ie "DES".
 Category: Signed  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
A public value stating 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

DESEncryptorEngine

public DESEncryptorEngine(DESKey key)
                   throws CryptoTokenException,
                          CryptoUnsupportedOperationException
Creates a DESEncryptorEngineobject given a DES key.

Parameters:
key - The DES key to use for the engine.

Throws:
CryptoTokenException - Thrown when a problem occurs with a crypto token or the crypto token is invalid.
CryptoUnsupportedOperationException - Thrown if 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 "DES".

This method will always return the string "DES".

Returns:
A string representing the name of the algorithm.
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.

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.

Since:
JDE 4.0.2
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.


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