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java.lang.Object | +--net.rim.device.api.crypto.SkipjackEncryptorEngine
The SkipjackEncryptorEngine implements the encryption functionality
of the Skipjack block cipher.
We implemented Skipjack as it's defined in Skipjack
Skipjack operates on 64 bit blocks and has a key length of 80 bits.
For a code sample using the Skipjack encryptor engine, click here.
For information on cryptographic algorithms, see Crypto Algorithms.
SkipjackDecryptorEngine,
SkipjackKey| Field Summary | ||
|
static int |
BLOCK_LENGTH
Represents the block length of the cipher in bytes, namely 8 bytes. |
| Constructor Summary | ||
|
SkipjackEncryptorEngine(SkipjackKey key)
Creates a SkipjackEncryptorEngine based upon a Skipjack key that is initialized and
used for encryption of the plaintext for all subsequent calls to the class. |
|
| 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 "Skipjack". |
|
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 |
public static final int BLOCK_LENGTH
| Constructor Detail |
public SkipjackEncryptorEngine(SkipjackKey key) throws CryptoTokenException, CryptoUnsupportedOperationException
SkipjackEncryptorEngine based upon a Skipjack key that is initialized and
used for encryption of the plaintext for all subsequent calls to the class.
key - Contains the key material that will be used for encryption.CryptoTokenException - Thrown if an error occurs with the crypto
token or the crypto token is invalid.CryptoUnsupportedOperationException - Thrown if a call is made to
an unsupported operation.| Method Detail |
public void encrypt(byte[] plaintext,
int plaintextOffset,
byte[] ciphertext,
int ciphertextOffset)
throws CryptoTokenException
BlockEncryptorEngine
BlockEncryptorEngineplaintext - A byte array containing the input that is to be encrypted.plaintextOffset - The starting offset, or initial byte position, of
the data within the input array.ciphertext - A byte array to hold the ciphertext output from the method.ciphertextOffset - The starting offset, or initial byte position, of
the data within the output array.CryptoTokenException - Thrown when an problem occurs with the
crypto token or the crypto token is invalid.public String getAlgorithm()
BlockEncryptorEnginepublic int getBlockLength()
BlockEncryptorEngine
BlockEncryptorEngine
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