OutputXOFCalculator

Type Parameters:

T - the parameters type for the XOF calculator.

All Known Implementing Classes:

FipsOutputXOFCalculator
```
public interface OutputXOFCalculator<T>
```
Base interface for an eXtendable Output Funnction (XOF) calculator.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`getFunctionOutput(byte[] output, int off, int outLen)`	Output the function output for what has been written to the calculator's output stream.
`byte[]`	`getFunctionOutput(int outLen)`	Return the outLen bytes of function output for what has been written to the calculator's output stream.
`UpdateOutputStream`	`getFunctionStream()`	Returns a stream that will accept data for the purpose of calculating a MAC.
`T`	`getParameters()`	Return the parameters for this MAC calculator.
`void`	`reset()`	Reset the calculator back to its initial state.

- Method Detail
  - getParameters
```
T getParameters()
```
    Return the parameters for this MAC calculator.
    
    Returns:
    
    the MAC calculator's parameters.
  - getFunctionStream
```
UpdateOutputStream getFunctionStream()
```
    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.
    
    Returns:
    
    an UpdateOutputStream
  - getFunctionOutput
```
byte[] getFunctionOutput(int outLen)
```
    Return the outLen bytes of function output for what has been written to the calculator's output stream.
    
    Parameters:
    
    outLen - the number of output bytes requested.
    
    Returns:
    
    a byte array containing outLen bytes of output.
  - getFunctionOutput
```
int getFunctionOutput(byte[] output,
                      int off,
                      int outLen)
```
    Output the function output for what has been written to the calculator's output stream.
    
    Parameters:
    
    output - output array to write the output bytes to.
    
    off - offset to start writing the bytes at.
    
    outLen - the number of output bytes requested.
    
    Returns:
    
    the number of bytes written
  - reset
```
void reset()
```
    Reset the calculator back to its initial state.