org.bouncycastle.crypto.engines
Class RC532Engine
java.lang.Object
org.bouncycastle.crypto.engines.RC532Engine
- BlockCipher
public class RC532Engine
extends java.lang.Object
The specification for RC5 came from the
RC5 Encryption Algorithm
publication in RSA CryptoBytes, Spring of 1995.
http://www.rsasecurity.com/rsalabs/cryptobytes.
This implementation has a word size of 32 bits.
Implementation courtesy of Tito Pena.
RC532Engine() - Create an instance of the RC5 encryption algorithm
and set some defaults
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String | getAlgorithmName() - Return the name of the algorithm the cipher implements.
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int | getBlockSize() - Return the block size for this cipher (in bytes).
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void | init(boolean forEncryption, CipherParameters params) - initialise a RC5-32 cipher.
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int | processBlock(byte[] in, int inOff, byte[] out, int outOff) - Process one block of input from the array in and write it to
the out array.
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void | reset() - Reset the cipher.
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RC532Engine
public RC532Engine()
Create an instance of the RC5 encryption algorithm
and set some defaults
getAlgorithmName
public String getAlgorithmName()
Return the name of the algorithm the cipher implements.
- getAlgorithmName in interface BlockCipher
- the name of the algorithm the cipher implements.
getBlockSize
public int getBlockSize()
Return the block size for this cipher (in bytes).
- getBlockSize in interface BlockCipher
- the block size for this cipher in bytes.
init
public void init(boolean forEncryption,
CipherParameters params)
initialise a RC5-32 cipher.
- init in interface BlockCipher
forEncryption
- whether or not we are for encryption.params
- the parameters required to set up the cipher.
processBlock
public int processBlock(byte[] in,
int inOff,
byte[] out,
int outOff)
Process one block of input from the array in and write it to
the out array.
- processBlock in interface BlockCipher
in
- the array containing the input data.inOff
- offset into the in array the data starts at.out
- the array the output data will be copied into.outOff
- the offset into the out array the output will start at.
- the number of bytes processed and produced.
reset
public void reset()
Reset the cipher. After resetting the cipher is in the same state
as it was after the last init (if there was one).
- reset in interface BlockCipher