| org.bouncycastle.crypto.modes.AEADBlockCipher
All known Subclasses: org.bouncycastle.crypto.modes.CCMBlockCipher, org.bouncycastle.crypto.modes.EAXBlockCipher,
| Method Summary | |
| public int | doFinal(byte[] out, int outOff)
Finish the operation either appending or verifying the MAC at the end of the data.
Parameters:
out - space for any resulting output data.
Parameters:
outOff - offset into out to start copying the data at. | | public String | getAlgorithmName()
Return the name of the algorithm. | | public byte[] | getMac()
Return the value of the MAC associated with the last stream processed. | | public int | getOutputSize(int len)
return the size of the output buffer required for a processBytes plus a
doFinal with an input of len bytes.
Parameters:
len - the length of the input. | | public BlockCipher | getUnderlyingCipher()
return the cipher this object wraps. | | public int | getUpdateOutputSize(int len)
return the size of the output buffer required for a processBytes
an input of len bytes.
Parameters:
len - the length of the input. | | public void | init(boolean forEncryption, CipherParameters params)
initialise the underlying cipher. | | public int | processByte(byte in, byte[] out, int outOff)
encrypt/decrypt a single byte.
Parameters:
in - the byte to be processed.
Parameters:
out - the output buffer the processed byte goes into.
Parameters:
outOff - the offset into the output byte array the processed data starts at. | | public int | processBytes(byte[] in, int inOff, int len, byte[] out, int outOff)
process a block of bytes from in putting the result into out.
Parameters:
in - the input byte array.
Parameters:
inOff - the offset into the in array where the data to be processed starts.
Parameters:
len - the number of bytes to be processed.
Parameters:
out - the output buffer the processed bytes go into.
Parameters:
outOff - the offset into the output byte array the processed data starts at. | | public void | reset()
Reset the cipher. |
| getAlgorithmName | | public String getAlgorithmName()(Code) | | Return the name of the algorithm.
the algorithm name. |
| getMac | | public byte[] getMac()(Code) | | Return the value of the MAC associated with the last stream processed.
MAC for plaintext data. |
| getOutputSize | | public int getOutputSize(int len)(Code) | | return the size of the output buffer required for a processBytes plus a
doFinal with an input of len bytes.
Parameters:
len - the length of the input. the space required to accommodate a call to processBytes and doFinalwith len bytes of input. |
| getUnderlyingCipher | | public BlockCipher getUnderlyingCipher()(Code) | | return the cipher this object wraps.
the cipher this object wraps. |
| getUpdateOutputSize | | public int getUpdateOutputSize(int len)(Code) | | return the size of the output buffer required for a processBytes
an input of len bytes.
Parameters:
len - the length of the input. the space required to accommodate a call to processByteswith len bytes of input. |
| init | | public void init(boolean forEncryption, CipherParameters params) throws IllegalArgumentException(Code) | | initialise the underlying cipher. Parameter can either be an AEADParameters or a ParametersWithIV object.
Parameters:
forEncryption - true if we are setting up for encryption, false otherwise.
Parameters:
params - the necessary parameters for the underlying cipher to be initialised.
exception:
IllegalArgumentException - if the params argument is inappropriate. |
| processByte | | public int processByte(byte in, byte[] out, int outOff) throws DataLengthException(Code) | | encrypt/decrypt a single byte.
Parameters:
in - the byte to be processed.
Parameters:
out - the output buffer the processed byte goes into.
Parameters:
outOff - the offset into the output byte array the processed data starts at. the number of bytes written to out.
exception:
DataLengthException - if the output buffer is too small. |
| processBytes | | public int processBytes(byte[] in, int inOff, int len, byte[] out, int outOff) throws DataLengthException(Code) | | process a block of bytes from in putting the result into out.
Parameters:
in - the input byte array.
Parameters:
inOff - the offset into the in array where the data to be processed starts.
Parameters:
len - the number of bytes to be processed.
Parameters:
out - the output buffer the processed bytes go into.
Parameters:
outOff - the offset into the output byte array the processed data starts at. the number of bytes written to out.
exception:
DataLengthException - if the output buffer is too small. |
| reset | | public void reset()(Code) | | Reset the cipher. After resetting the cipher is in the same state
as it was after the last init (if there was one).
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