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Bouncy Castle Cryptography 1.11 API Specification: Class BufferedAsymmetricBlockCipher
org.bouncycastle.crypto
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Field Summary | |
protected byte[] |
buf
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protected int |
bufOff
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Constructor Summary | |
BufferedAsymmetricBlockCipher(AsymmetricBlockCipher cipher)
base constructor. |
Method Summary | |
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. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
protected byte[] buf
protected int bufOff
Constructor Detail |
public BufferedAsymmetricBlockCipher(AsymmetricBlockCipher cipher)
cipher
- the cipher this buffering object wraps.Method Detail |
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.param
- 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()
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Bouncy Castle Cryptography 1.11 | ||||||||
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