org.bouncycastle.crypto.fips

Class FipsOutputMACCalculator<T>

java.lang.Object

org.bouncycastle.crypto.fips.FipsOutputMACCalculator<T>

Type Parameters:

T - the parameters type associated with the final implementation of this calculator.

All Implemented Interfaces:

OutputMACCalculator<T>

public abstract class FipsOutputMACCalculator<T>
extends java.lang.Object
implements OutputMACCalculator<T>

Base class for the approved mode OutputMACCalculator implementations.

Method Summary

Modifier and Type	Method and Description
byte[]	getMAC() Return the MAC calculated on what has been written to the calculator's output stream.
abstract int	getMAC(byte[] output, int off) Output the current MAC value for what has been written to the calculator's output stream.
abstract int	getMACSize() Return the size of the MAC produced by this calculator in bytes.
abstract UpdateOutputStream	getMACStream() Returns a stream that will accept data for the purpose of calculating a MAC.
abstract T	getParameters() Return the parameters for this MAC calculator.
abstract void	reset() Reset the calculator back to its initial state.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getMAC

public byte[] getMAC()

Description copied from interface: OutputMACCalculator

Return the MAC calculated on what has been written to the calculator's output stream.

Specified by:

getMAC in interface OutputMACCalculator<T>

Returns:

a MAC.

getParameters

public abstract T getParameters()

Description copied from interface: OutputMACCalculator

Return the parameters for this MAC calculator.

Specified by:

getParameters in interface OutputMACCalculator<T>

Returns:

the MAC calculator's parameters.

getMACSize

public abstract int getMACSize()

Description copied from interface: OutputMACCalculator

Return the size of the MAC produced by this calculator in bytes.

Specified by:

getMACSize in interface OutputMACCalculator<T>

Returns:

MAC length in bytes.

getMACStream

public abstract UpdateOutputStream getMACStream()

Description copied from interface: OutputMACCalculator

Returns a stream that will accept data for the purpose of calculating a MAC. Use org.bouncycastle.util.io.TeeOutputStream if you want to accumulate the data on the fly as well.

Specified by:

getMACStream in interface OutputMACCalculator<T>

Returns:

an UpdateOutputStream

getMAC

public abstract int getMAC(byte[] output,
                           int off)

Description copied from interface: OutputMACCalculator

Output the current MAC value for what has been written to the calculator's output stream.

Specified by:

getMAC in interface OutputMACCalculator<T>

Parameters:

output - output array to write the MAC to.

off - offset to start writing the MAC at.

Returns:

the number of bytes written

reset

public abstract void reset()

Description copied from interface: OutputMACCalculator

Reset the calculator back to its initial state.

Specified by:

reset in interface OutputMACCalculator<T>