Package com.trilead.ssh2.crypto.cipher
Class DES
java.lang.Object
com.trilead.ssh2.crypto.cipher.DES
- All Implemented Interfaces:
BlockCipher
- Direct Known Subclasses:
DESede
DES.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected void
desFunc
(int[] wKey, byte[] in, int inOff, byte[] out, int outOff) the DES engine.protected int[]
generateWorkingKey
(boolean encrypting, byte[] key, int off) generate an integer based working key based on our secret key and what we processing we are planning to do.int
void
init
(boolean encrypting, byte[] key) initialise a DES cipher.void
reset()
void
transformBlock
(byte[] in, int inOff, byte[] out, int outOff)
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Constructor Details
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DES
public DES()standard constructor.
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Method Details
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init
public void init(boolean encrypting, byte[] key) initialise a DES cipher.- Specified by:
init
in interfaceBlockCipher
- Parameters:
encrypting
- whether or not we are for encryption.key
- the parameters required to set up the cipher.- Throws:
IllegalArgumentException
- if the params argument is inappropriate.
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getAlgorithmName
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getBlockSize
public int getBlockSize()- Specified by:
getBlockSize
in interfaceBlockCipher
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transformBlock
public void transformBlock(byte[] in, int inOff, byte[] out, int outOff) - Specified by:
transformBlock
in interfaceBlockCipher
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reset
public void reset() -
generateWorkingKey
protected int[] generateWorkingKey(boolean encrypting, byte[] key, int off) generate an integer based working key based on our secret key and what we processing we are planning to do. Acknowledgements for this routine go to James Gillogly invalid input: '&' Phil Karn. (whoever, and wherever they are!). -
desFunc
protected void desFunc(int[] wKey, byte[] in, int inOff, byte[] out, int outOff) the DES engine.
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