net.rim.device.api.crypto
Interface BlockDecryptorEngineExt

All Superinterfaces:
BlockDecryptorEngine
All Known Implementing Classes:
AESCBCDecryptorEngine, TripleDESCBCDecryptorEngine

public interface BlockDecryptorEngineExt
extends BlockDecryptorEngine

The BlockDecryptorEngineExt interface describes the functionality of using a block cipher for decryption.

Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Since:
BlackBerry API 5.0.0

Method Summary
Category: Signed  void decrypt(byte[] ciphertext, int ciphertextOffset, byte[] plaintext, int plaintextOffset, int numBlocks)
          Decodes a series of blocks of the given ciphertext into a series of blocks of plaintext.
 
Methods inherited from interface net.rim.device.api.crypto.BlockDecryptorEngine
decrypt, getAlgorithm, getBlockLength
 



Method Detail

decrypt

void decrypt(byte[] ciphertext,
             int ciphertextOffset,
             byte[] plaintext,
             int plaintextOffset,
             int numBlocks)
             throws CryptoTokenException
Decodes a series of blocks of the given ciphertext into a series of blocks of plaintext.

Parameters:
ciphertext - A byte array containing the input that is to be decrypted.
ciphertextOffset - The starting offset, or initial byte position, of the data within the input array.
plaintext - A byte array containing the output from the method.
plaintextOffset - The starting offset, or initial byte position, of the data within the output array.
numBlocks - The number of blocks to decrypt.
Throws:
CryptoTokenException - Thrown when an error occurs with the crypto token or the crypto token is invalid.
Category:
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
Since:
BlackBerry API 5.0.0





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