public class BufferedAsymmetricBlockCipher
extends java.lang.Object
Constructor | Description |
---|---|
BufferedAsymmetricBlockCipher(AsymmetricBlockCipher cipher) |
base constructor.
|
Modifier and Type | Method | Description |
---|---|---|
byte[] |
doFinal() |
process the contents of the buffer using the underlying
cipher.
|
int |
getBufferPosition() |
return the amount of data sitting in the buffer.
|
int |
getInputBlockSize() |
returns the largest size an input block can be.
|
int |
getOutputBlockSize() |
returns the maximum size of the block produced by this cipher.
|
AsymmetricBlockCipher |
getUnderlyingCipher() |
return the underlying cipher for the buffer.
|
void |
init(boolean forEncryption,
CipherParameters params) |
initialise the buffer and the underlying cipher.
|
void |
processByte(byte in) |
add another byte for processing.
|
void |
processBytes(byte[] in,
int inOff,
int len) |
add len bytes to the buffer for processing.
|
void |
reset() |
Reset the buffer and the underlying cipher.
|
public BufferedAsymmetricBlockCipher(AsymmetricBlockCipher cipher)
cipher
- the cipher this buffering object wraps.public AsymmetricBlockCipher getUnderlyingCipher()
public int getBufferPosition()
public void init(boolean forEncryption, CipherParameters params)
forEncryption
- if true the cipher is initialised for
encryption, if false for decryption.params
- the key and other data required by the cipher.public int getInputBlockSize()
public int getOutputBlockSize()
public void processByte(byte in)
in
- the input byte.public void processBytes(byte[] in, int inOff, int len)
in
- the input datainOff
- offset into the in array where the data startslen
- the length of the block to be processed.public byte[] doFinal() throws InvalidCipherTextException
InvalidCipherTextException
- if we are given a garbage block.public void reset()