Package org.bouncycastle.crypto.params

## Class ECDomainParameters

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

- All Implemented Interfaces:
    `ECConstants`
  Direct Known Subclasses:
    `DSTU4145Parameters`, `ECNamedDomainParameters`

      public class ECDomainParameters
      extends java.lang.Object
      implements ECConstants

- - ### Field Summary

    - ### Fields inherited from interface org.bouncycastle.math.ec.ECConstants

      `EIGHT, FOUR, ONE, THREE, TWO, ZERO`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `ECDomainParameters​(X9ECParameters x9)` |
    `ECDomainParameters​(ECCurve curve, ECPoint G, java.math.BigInteger n)` |
    `ECDomainParameters​(ECCurve curve, ECPoint G, java.math.BigInteger n, java.math.BigInteger h)` |
    `ECDomainParameters​(ECCurve curve, ECPoint G, java.math.BigInteger n, java.math.BigInteger h, byte[] seed)` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `boolean` | `equals​(java.lang.Object obj)` |
    `ECCurve` | `getCurve()` |
    `ECPoint` | `getG()` |
    `java.math.BigInteger` | `getH()` |
    `java.math.BigInteger` | `getHInv()` |
    `java.math.BigInteger` | `getN()` |
    `byte[]` | `getSeed()` |
    `int` | `hashCode()` |
    `java.math.BigInteger` | `validatePrivateScalar​(java.math.BigInteger d)` |
    `ECPoint` | `validatePublicPoint​(ECPoint q)` |

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

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

- - ### Constructor Detail

    - #### ECDomainParameters

          public ECDomainParameters​(X9ECParameters x9)

    - #### ECDomainParameters

          public ECDomainParameters​(ECCurve curve,
                                    ECPoint G,
                                    java.math.BigInteger n)

    - #### ECDomainParameters

          public ECDomainParameters​(ECCurve curve,
                                    ECPoint G,
                                    java.math.BigInteger n,
                                    java.math.BigInteger h)

    - #### ECDomainParameters

          public ECDomainParameters​(ECCurve curve,
                                    ECPoint G,
                                    java.math.BigInteger n,
                                    java.math.BigInteger h,
                                    byte[] seed)

  - ### Method Detail

    - #### getCurve

          public ECCurve getCurve()

    - #### getG

          public ECPoint getG()

    - #### getN

          public java.math.BigInteger getN()

    - #### getH

          public java.math.BigInteger getH()

    - #### getHInv

          public java.math.BigInteger getHInv()

    - #### getSeed

          public byte[] getSeed()

    - #### equals

          public boolean equals​(java.lang.Object obj)

      Overrides:
        `equals` in class `java.lang.Object`

    - #### hashCode

          public int hashCode()

      Overrides:
        `hashCode` in class `java.lang.Object`

    - #### validatePrivateScalar

          public java.math.BigInteger validatePrivateScalar​(java.math.BigInteger d)

    - #### validatePublicPoint

          public ECPoint validatePublicPoint​(ECPoint q)