GSKKDFParameters (Bouncy Castle Library 1.85 API Specification)
Date: 2026-07-12

org.bouncycastle.crypto.agreement.kdf

## Class GSKKDFParameters

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

- All Implemented Interfaces:
    DerivationParameters

      public class GSKKDFParameters
      extends java.lang.Object
      implements DerivationParameters

  BSI Key Derivation Function Parameters for Session Keys (see BSI-TR-03111 Section 4.3.3)

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `GSKKDFParameters(byte[] z, int startCounter)`
    `GSKKDFParameters(byte[] z, int startCounter, byte[] nonce)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `byte[]` | `getNonce()`
    `int` | `getStartCounter()`
    `byte[]` | `getZ()`

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### GSKKDFParameters

          public GSKKDFParameters(byte[] z,
                                  int startCounter)

    - #### GSKKDFParameters

          public GSKKDFParameters(byte[] z,
                                  int startCounter,
                                  byte[] nonce)

  - ### Method Detail

    - #### getZ

          public byte[] getZ()

    - #### getStartCounter

          public int getStartCounter()

    - #### getNonce

          public byte[] getNonce()