Package org.bouncycastle.math.ec

## Class ECCurve.Fp

- java.lang.Object
- - org.bouncycastle.math.ec.ECCurve
  - - org.bouncycastle.math.ec.ECCurve.AbstractFp
    - - org.bouncycastle.math.ec.ECCurve.Fp

- Enclosing class:
    ECCurve

      public static class ECCurve.Fp
      extends ECCurve.AbstractFp

  Elliptic curve over Fp

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.bouncycastle.math.ec.ECCurve

      `ECCurve.AbstractF2m, ECCurve.AbstractFp, ECCurve.Config, ECCurve.F2m, ECCurve.Fp`

  - ### Field Summary

    - ### Fields inherited from class org.bouncycastle.math.ec.ECCurve

      `a, b, cofactor, coord, COORD_AFFINE, COORD_HOMOGENEOUS, COORD_JACOBIAN, COORD_JACOBIAN_CHUDNOVSKY, COORD_JACOBIAN_MODIFIED, COORD_LAMBDA_AFFINE, COORD_LAMBDA_PROJECTIVE, COORD_SKEWED, endomorphism, field, multiplier, order`

  - ### Constructor Summary

    Constructors
    Modifier | Constructor | Description
    --- | --- | ---
    `` | `Fp​(java.math.BigInteger q, java.math.BigInteger a, java.math.BigInteger b)` | Deprecated. use constructor taking order/cofactor
    `` | `Fp​(java.math.BigInteger q, java.math.BigInteger a, java.math.BigInteger b, java.math.BigInteger order, java.math.BigInteger cofactor)` |
    `protected` | `Fp​(java.math.BigInteger q, java.math.BigInteger r, ECFieldElement a, ECFieldElement b, java.math.BigInteger order, java.math.BigInteger cofactor)` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `protected ECCurve` | `cloneCurve()` |
    `protected ECPoint` | `createRawPoint​(ECFieldElement x, ECFieldElement y)` |
    `protected ECPoint` | `createRawPoint​(ECFieldElement x, ECFieldElement y, ECFieldElement[] zs)` |
    `ECFieldElement` | `fromBigInteger​(java.math.BigInteger x)` |
    `int` | `getFieldSize()` |
    `ECPoint` | `getInfinity()` |
    `java.math.BigInteger` | `getQ()` |
    `ECPoint` | `importPoint​(ECPoint p)` |
    `boolean` | `supportsCoordinateSystem​(int coord)` |

    - ### Methods inherited from class org.bouncycastle.math.ec.ECCurve.AbstractFp

      `decompressPoint, isValidFieldElement, randomFieldElement, randomFieldElementMult`

    - ### Methods inherited from class org.bouncycastle.math.ec.ECCurve

      `checkPoint, checkPoints, checkPoints, configure, createCacheSafeLookupTable, createDefaultMultiplier, createPoint, decodePoint, equals, equals, getA, getAllCoordinateSystems, getB, getCofactor, getCoordinateSystem, getEndomorphism, getField, getMultiplier, getOrder, getPreCompInfo, hashCode, normalizeAll, normalizeAll, precompute, validatePoint`

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

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

- - ### Constructor Detail

    - #### Fp

          public Fp​(java.math.BigInteger q,
                    java.math.BigInteger a,
                    java.math.BigInteger b)

      Deprecated.
      use constructor taking order/cofactor

    - #### Fp

          public Fp​(java.math.BigInteger q,
                    java.math.BigInteger a,
                    java.math.BigInteger b,
                    java.math.BigInteger order,
                    java.math.BigInteger cofactor)

    - #### Fp

          protected Fp​(java.math.BigInteger q,
                       java.math.BigInteger r,
                       ECFieldElement a,
                       ECFieldElement b,
                       java.math.BigInteger order,
                       java.math.BigInteger cofactor)

  - ### Method Detail

    - #### cloneCurve

          protected ECCurve cloneCurve()

      Specified by:
        `cloneCurve` in class `ECCurve`

    - #### supportsCoordinateSystem

          public boolean supportsCoordinateSystem​(int coord)

      Overrides:
        `supportsCoordinateSystem` in class `ECCurve`

    - #### getQ

          public java.math.BigInteger getQ()

    - #### getFieldSize

          public int getFieldSize()

      Specified by:
        `getFieldSize` in class `ECCurve`

    - #### fromBigInteger

          public ECFieldElement fromBigInteger​(java.math.BigInteger x)

      Specified by:
        `fromBigInteger` in class `ECCurve`

    - #### createRawPoint

          protected ECPoint createRawPoint​(ECFieldElement x,
                                           ECFieldElement y)

      Specified by:
        `createRawPoint` in class `ECCurve`

    - #### createRawPoint

          protected ECPoint createRawPoint​(ECFieldElement x,
                                           ECFieldElement y,
                                           ECFieldElement[] zs)

      Specified by:
        `createRawPoint` in class `ECCurve`

    - #### importPoint

          public ECPoint importPoint​(ECPoint p)

      Overrides:
        `importPoint` in class `ECCurve`

    - #### getInfinity

          public ECPoint getInfinity()

      Specified by:
        `getInfinity` in class `ECCurve`