GSKKFDGenerator (Bouncy Castle Library 1.68 API Specification)

java.lang.Object
- org.bouncycastle.crypto.agreement.kdf.GSKKFDGenerator

All Implemented Interfaces:

DerivationFunction, DigestDerivationFunction
```
public class GSKKFDGenerator
extends java.lang.Object
implements DigestDerivationFunction
```
BSI Key Derivation Function for Session Keys (see BSI-TR-03111 Section 4.3.3)

Constructor Summary

Constructors
Constructor Description

GSKKFDGenerator(Digest digest)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`generateBytes(byte[] out, int outOff, int len)`
`Digest`	`getDigest()`	return the message digest used as the basis for the function
`void`	`init(DerivationParameters param)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - GSKKFDGenerator
```
public GSKKFDGenerator(Digest digest)
```
- Method Detail
  - getDigest
```
public Digest getDigest()
```
    Description copied from interface: DigestDerivationFunction
    
    return the message digest used as the basis for the function
    
    Specified by:
    
    getDigest in interface DigestDerivationFunction
  - init
```
public void init(DerivationParameters param)
```
    Specified by:
    
    init in interface DerivationFunction
  - generateBytes
```
public int generateBytes(byte[] out,
                         int outOff,
                         int len)
                  throws DataLengthException,
                         java.lang.IllegalArgumentException
```
    Specified by:
    
    generateBytes in interface DerivationFunction
    
    Throws:
    
    DataLengthException
    
    java.lang.IllegalArgumentException