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

org.bouncycastle.crypto.params

## Class ECPrivateKeyParameters

- java.lang.Object
- - org.bouncycastle.crypto.params.AsymmetricKeyParameter
  - - org.bouncycastle.crypto.params.ECKeyParameters
    - - org.bouncycastle.crypto.params.ECPrivateKeyParameters

- All Implemented Interfaces:
    CipherParameters

      public class ECPrivateKeyParameters
      extends ECKeyParameters

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `ECPrivateKeyParameters(java.math.BigInteger d, ECDomainParameters parameters)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.math.BigInteger` | `getD()`

    - ### Methods inherited from class org.bouncycastle.crypto.params.ECKeyParameters

      `getParameters`

    - ### Methods inherited from class org.bouncycastle.crypto.params.AsymmetricKeyParameter

      `isPrivate`

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

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

- - ### Constructor Detail

    - #### ECPrivateKeyParameters

          public ECPrivateKeyParameters(java.math.BigInteger d,
                                        ECDomainParameters parameters)

  - ### Method Detail

    - #### getD

          public java.math.BigInteger getD()