Package org.bouncycastle.crypto.engines
Class DSTU7624Engine
- java.lang.Object
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- org.bouncycastle.crypto.engines.DSTU7624Engine
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- All Implemented Interfaces:
BlockCipher
public class DSTU7624Engine extends java.lang.Object implements BlockCipher
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Constructor Summary
Constructors Constructor Description DSTU7624Engine(int blockBitLength)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
getAlgorithmName()
Return the name of the algorithm the cipher implements.int
getBlockSize()
Return the block size for this cipher (in bytes).void
init(boolean forEncryption, CipherParameters params)
Initialise the cipher.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.void
reset()
Reset the cipher.
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Method Detail
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init
public void init(boolean forEncryption, CipherParameters params) throws java.lang.IllegalArgumentException
Description copied from interface:BlockCipher
Initialise the cipher.- Specified by:
init
in interfaceBlockCipher
- Parameters:
forEncryption
- if true the cipher is initialised for encryption, if false for decryption.params
- the key and other data required by the cipher.- Throws:
java.lang.IllegalArgumentException
- if the params argument is inappropriate.
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getAlgorithmName
public java.lang.String getAlgorithmName()
Description copied from interface:BlockCipher
Return the name of the algorithm the cipher implements.- Specified by:
getAlgorithmName
in interfaceBlockCipher
- Returns:
- the name of the algorithm the cipher implements.
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getBlockSize
public int getBlockSize()
Description copied from interface:BlockCipher
Return the block size for this cipher (in bytes).- Specified by:
getBlockSize
in interfaceBlockCipher
- Returns:
- the block size for this cipher in bytes.
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processBlock
public int processBlock(byte[] in, int inOff, byte[] out, int outOff) throws DataLengthException, java.lang.IllegalStateException
Description copied from interface:BlockCipher
Process one block of input from the array in and write it to the out array.- Specified by:
processBlock
in interfaceBlockCipher
- Parameters:
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.- Returns:
- the number of bytes processed and produced.
- Throws:
DataLengthException
- if there isn't enough data in in, or space in out.java.lang.IllegalStateException
- if the cipher isn't initialised.
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reset
public void reset()
Description copied from interface:BlockCipher
Reset the cipher. After resetting the cipher is in the same state as it was after the last init (if there was one).- Specified by:
reset
in interfaceBlockCipher
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