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java.lang.Objectcom.sun.mfwk.security.crypto.MfCrypto
This class is used to encrypt and decrypt blocs of data using the DES algorithm.
 The key management can be managed by the class itself (by providing a file path which
 contains the key)
 or can be handled by the caller (by providing the key as a SecretKey object or a byte[]).
| Constructor Summary | |
| MfCrypto()Creates a new instance of MfCrypto | |
| MfCrypto(byte[] k)Creates a new instance of MfCrypto and initialises the secret key with the argument | |
| MfCrypto(javax.crypto.SecretKey k)Creates a new instance of MfCrypto and initialises the secret key with the argument | |
| Method Summary | |
|  byte[] | decrypt(byte[] buf)Takes a byte array as input and return a byte array which is decrypted using the symetric key | 
|  byte[] | encrypt(byte[] buf)Takes a byte array as input and return a byte array which is encrypted using the symetric key | 
|  byte[] | getKeyBytes()Get the key as a byte[] | 
|  javax.crypto.SecretKey | getKeyObject()Get the key as Key object | 
|  void | setKey(byte[] keybuf)sets the key with the argument | 
|  void | setKey(javax.crypto.SecretKey k)sets the key with the argument | 
| Methods inherited from class java.lang.Object | 
| equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
| Constructor Detail | 
public MfCrypto()
public MfCrypto(byte[] k)
         throws java.security.InvalidKeyException
k - The key as a byte array.
java.security.InvalidKeyException - if the key is null or invalid for DES algorithm
public MfCrypto(javax.crypto.SecretKey k)
         throws java.security.InvalidKeyException
k - The key as a SecretKey object.| Method Detail | 
public void setKey(javax.crypto.SecretKey k)
            throws java.security.InvalidKeyException
k - The key as a SecretKey object.
java.security.InvalidKeyException
public void setKey(byte[] keybuf)
            throws java.security.InvalidKeyException
keybuf - the key as a byte array.
java.security.InvalidKeyException - if the key is null or invalid for DES algorithmpublic javax.crypto.SecretKey getKeyObject()
public byte[] getKeyBytes()
public byte[] encrypt(byte[] buf)
               throws java.security.InvalidKeyException
buf - The buffer to encrypt.
java.security.InvalidKeyException - if the key  is null (not initialised) or invalid for DES algorithm
public byte[] decrypt(byte[] buf)
               throws java.security.InvalidKeyException
buf - The buffer to decrypt.
java.security.InvalidKeyException - if the key is null (not initialised) or invalid for DES algorithm| 
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