BrokenKDF2BytesGenerator (Bouncy Castle Library 1.68 API Specification)

java.lang.Object
- org.bouncycastle.jce.provider.BrokenKDF2BytesGenerator

All Implemented Interfaces:

DerivationFunction
```
public class BrokenKDF2BytesGenerator
extends java.lang.Object
implements DerivationFunction
```
Generator for PBE derived keys and ivs as defined by IEEE P1363a
This implementation is based on draft 9 of IEEE P1363a. Note: as this is still a draft the output of this generator may change, don't use it for anything that might be subject to long term storage.

Constructor Summary

Constructors
Constructor Description

BrokenKDF2BytesGenerator(Digest digest)
Construct a KDF2 Parameters generator.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`generateBytes(byte[] out, int outOff, int len)`	fill len bytes of the output buffer with bytes generated from the derivation function.
`Digest`	`getDigest()`	return the underlying digest.
`void`	`init(DerivationParameters param)`

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

- Constructor Detail
  - BrokenKDF2BytesGenerator
```
public BrokenKDF2BytesGenerator(Digest digest)
```
    Construct a KDF2 Parameters generator. Generates key material according to IEEE P1363a - if you want orthodox results you should use a digest specified in the standard.
    Note: IEEE P1363a standard is still a draft standard, if the standard changes this function, the output of this function will change as well. Don't use this routine for anything subject to long term storage.
    
    Parameters:
    
    digest - the digest to be used as the source of derived keys.
- Method Detail
  - init
```
public void init(DerivationParameters param)
```
    Specified by:
    
    init in interface DerivationFunction
  - getDigest
```
public Digest getDigest()
```
    return the underlying digest.
  - generateBytes
```
public int generateBytes(byte[] out,
                         int outOff,
                         int len)
                  throws DataLengthException,
                         java.lang.IllegalArgumentException
```
    fill len bytes of the output buffer with bytes generated from the derivation function.
    
    Specified by:
    
    generateBytes in interface DerivationFunction
    
    Throws:
    
    java.lang.IllegalArgumentException - if the size of the request will cause an overflow.
    
    DataLengthException - if the out buffer is too small.