X9Curve (Bouncy Castle Cryptography 1.79 API Specification)

java.lang.Object
- org.bouncycastle.asn1.ASN1Object
- - org.bouncycastle.asn1.x9.X9Curve

All Implemented Interfaces:

ASN1Encodable, X9ObjectIdentifiers, Encodable
```
public class X9Curve
extends ASN1Object
implements X9ObjectIdentifiers
```
ASN.1 def for Elliptic-Curve Curve structure. See X9.62, for further details.

Field Summary
- Fields inherited from interface org.bouncycastle.asn1.x9.X9ObjectIdentifiers
  ansi_X9_42, ansi_X9_62, c2onb191v4, c2onb191v5, c2onb239v4, c2onb239v5, c2pnb163v1, c2pnb163v2, c2pnb163v3, c2pnb176w1, c2pnb208w1, c2pnb272w1, c2pnb304w1, c2pnb368w1, c2tnb191v1, c2tnb191v2, c2tnb191v3, c2tnb239v1, c2tnb239v2, c2tnb239v3, c2tnb359v1, c2tnb431r1, characteristic_two_field, cTwoCurve, dhEphem, dhHybrid1, dhHybrid2, dhHybridOneFlow, dhOneFlow, dhpublicnumber, dhSinglePass_cofactorDH_sha1kdf_scheme, dhSinglePass_stdDH_sha1kdf_scheme, dhStatic, ecdsa_with_SHA1, ecdsa_with_SHA2, ecdsa_with_SHA224, ecdsa_with_SHA256, ecdsa_with_SHA384, ecdsa_with_SHA512, ellipticCurve, gnBasis, id_dsa, id_dsa_with_sha1, id_ecPublicKey, id_ecSigType, id_fieldType, id_kdf_kdf2, id_kdf_kdf3, id_publicKeyType, mqv1, mqv2, mqvSinglePass_sha1kdf_scheme, ppBasis, prime_field, prime192v1, prime192v2, prime192v3, prime239v1, prime239v2, prime239v3, prime256v1, primeCurve, tpBasis, x9_42_schemes, x9_44, x9_44_components, x9_63_scheme

Constructor Summary

Constructors
Constructor	Description
`X9Curve(X9FieldID fieldID, java.math.BigInteger order, java.math.BigInteger cofactor, ASN1Sequence seq)`
`X9Curve(ECCurve curve)`
`X9Curve(ECCurve curve, byte[] seed)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ECCurve`	`getCurve()`
`byte[]`	`getSeed()`
`ASN1Primitive`	`toASN1Primitive()`	Produce an object suitable for an ASN1OutputStream.

Methods inherited from class org.bouncycastle.asn1.ASN1Object
encodeTo, encodeTo, equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - X9Curve
```
public X9Curve(ECCurve curve)
```
  - X9Curve
```
public X9Curve(ECCurve curve,
               byte[] seed)
```
  - X9Curve
```
public X9Curve(X9FieldID fieldID,
               java.math.BigInteger order,
               java.math.BigInteger cofactor,
               ASN1Sequence seq)
```
- Method Detail
  - getCurve
```
public ECCurve getCurve()
```
  - getSeed
```
public byte[] getSeed()
```
  - toASN1Primitive
```
public ASN1Primitive toASN1Primitive()
```
    Produce an object suitable for an ASN1OutputStream. Curve ::= SEQUENCE { a FieldElement, b FieldElement, seed BIT STRING OPTIONAL }
    
    Specified by:
    
    toASN1Primitive in interface ASN1Encodable
    
    Specified by:
    
    toASN1Primitive in class ASN1Object
    
    Returns:
    
    a primitive representation of this object.