BlockCipher

All Implemented Interfaces:
```
public interface BlockCipher

                    
```
Block cipher engines are expected to conform to this interface.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`abstract void`	`init(boolean forEncryption, CipherParameters params)`	Initialise the cipher.
`abstract String`	`getAlgorithmName()`	Return the name of the algorithm the cipher implements.
`abstract int`	`getBlockSize()`	Return the block size for this cipher (in bytes).
`abstract int`	`processBlock(Array<byte> in, int inOff, Array<byte> out, int outOff)`	Process one block of input from the array in and write it to the out array.
`abstract void`	`reset()`	Reset the cipher.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - init
```
 abstract void init(boolean forEncryption, CipherParameters params)
```
    Initialise the cipher.
    
    Parameters:
    
    forEncryption - if true the cipher is initialised for encryption, if false for decryption.
    
    params - the key and other data required by the cipher.
  - getAlgorithmName
```
 abstract String getAlgorithmName()
```
    Return the name of the algorithm the cipher implements.
    
    Returns:
    
    the name of the algorithm the cipher implements.
  - getBlockSize
```
 abstract int getBlockSize()
```
    Return the block size for this cipher (in bytes).
    
    Returns:
    
    the block size for this cipher in bytes.
  - processBlock
```
 abstract int processBlock(Array<byte> in, int inOff, Array<byte> out, int outOff)
```
    Process one block of input from the array in and write it to the out array.
    
    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.
  - reset
```
 abstract 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).