org.bouncycastle.crypto
public class BufferedAsymmetricBlockCipher extends Object
Field Summary | |
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protected byte[] | buf |
protected int | bufOff |
Constructor Summary | |
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BufferedAsymmetricBlockCipher(AsymmetricBlockCipher cipher)
base constructor.
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Method Summary | |
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byte[] | doFinal()
process the contents of the buffer using the underlying
cipher.
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int | getBufferPosition()
return the amount of data sitting in the buffer.
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int | getInputBlockSize()
returns the largest size an input block can be.
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int | getOutputBlockSize()
returns the maximum size of the block produced by this cipher.
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AsymmetricBlockCipher | getUnderlyingCipher()
return the underlying cipher for the buffer.
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void | init(boolean forEncryption, CipherParameters params)
initialise the buffer and the underlying cipher.
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void | processByte(byte in)
add another byte for processing.
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void | processBytes(byte[] in, int inOff, int len)
add len bytes to the buffer for processing.
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void | reset()
Reset the buffer and the underlying cipher. |
Parameters: cipher the cipher this buffering object wraps.
Returns: the result of the encryption/decryption process on the buffer.
Throws: InvalidCipherTextException if we are given a garbage block.
Returns: the amount of data sitting in the buffer.
Returns: maximum size for an input block.
Returns: maximum size of the output block produced by the cipher.
Returns: the underlying cipher for the buffer.
Parameters: forEncryption if true the cipher is initialised for encryption, if false for decryption. params the key and other data required by the cipher.
Parameters: in the input byte.
Parameters: in the input data inOff offset into the in array where the data starts len the length of the block to be processed.