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

org.bouncycastle.crypto.params

## Class IESParameters

- java.lang.Object
- - org.bouncycastle.crypto.params.IESParameters

- All Implemented Interfaces:
    CipherParameters
  Direct Known Subclasses:
    IESWithCipherParameters

      public class IESParameters
      extends java.lang.Object
      implements CipherParameters

  parameters for using an integrated cipher in stream mode.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `IESParameters(byte[] derivation, byte[] encoding, int macKeySize)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `byte[]` | `getDerivationV()`
    `byte[]` | `getEncodingV()`
    `int` | `getMacKeySize()`

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

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

- - ### Constructor Detail

    - #### IESParameters

          public IESParameters(byte[] derivation,
                               byte[] encoding,
                               int macKeySize)

      Parameters:
        `derivation` - the derivation parameter for the KDF function.
        `encoding` - the encoding parameter for the KDF function.
        `macKeySize` - the size of the MAC key (in bits).

  - ### Method Detail

    - #### getDerivationV

          public byte[] getDerivationV()

    - #### getEncodingV

          public byte[] getEncodingV()

    - #### getMacKeySize

          public int getMacKeySize()