org.bouncycastle.asn1.x9

Class X9Curve

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 and Description
X9Curve(ECCurve curve)
X9Curve(ECCurve curve, byte[] seed)
X9Curve(X9FieldID fieldID, ASN1Sequence seq) Deprecated. use constructor including order/cofactor
X9Curve(X9FieldID fieldID, java.math.BigInteger order, java.math.BigInteger cofactor, ASN1Sequence seq)

Method Summary

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

Methods inherited from class org.bouncycastle.asn1.ASN1Object

equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode, toASN1Object

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,
               ASN1Sequence seq)

Deprecated. use constructor including order/cofactor

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.