org.bouncycastle.asn1.x9
Class X9ECParameters

java.lang.Object
  org.bouncycastle.asn1.ASN1Encodable
      org.bouncycastle.asn1.x9.X9ECParameters

All Implemented Interfaces:

DEREncodable, X9ObjectIdentifiers

public class X9ECParameters
extends ASN1Encodable
implements X9ObjectIdentifiers

ASN.1 def for Elliptic-Curve ECParameters structure. See X9.62, for further details.

Field Summary

private ECCurve	curve
private X9FieldID	fieldID
private ECPoint	g
private java.math.BigInteger	h
private java.math.BigInteger	n
private static java.math.BigInteger	ONE
private byte[]	seed

Fields inherited from class org.bouncycastle.asn1.ASN1Encodable

BER, DER

Fields inherited from interface org.bouncycastle.asn1.x9.X9ObjectIdentifiers

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_publicKeyType, mqv1, mqv2, mqvSinglePass_sha1kdf_scheme, ppBasis, prime_field, prime192v1, prime192v2, prime192v3, prime239v1, prime239v2, prime239v3, prime256v1, primeCurve, tpBasis, x9_42_schemes, x9_63_scheme

Constructor Summary

X9ECParameters(ASN1Sequence seq)

X9ECParameters(ECCurve curve, ECPoint g, java.math.BigInteger n)

X9ECParameters(ECCurve curve, ECPoint g, java.math.BigInteger n, java.math.BigInteger h)

X9ECParameters(ECCurve curve, ECPoint g, java.math.BigInteger n, java.math.BigInteger h, byte[] seed)

Method Summary

ECCurve	getCurve()
ECPoint	getG()
java.math.BigInteger	getH()
java.math.BigInteger	getN()
byte[]	getSeed()
DERObject	toASN1Object() Produce an object suitable for an ASN1OutputStream.

Methods inherited from class org.bouncycastle.asn1.ASN1Encodable

equals, getDEREncoded, getDERObject, getEncoded, getEncoded, hashCode

Methods inherited from class java.lang.Object

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

Field Detail

ONE

private static final java.math.BigInteger ONE

fieldID

private X9FieldID fieldID

curve

private ECCurve curve

g

private ECPoint g

n

private java.math.BigInteger n

h

private java.math.BigInteger h

seed

private byte[] seed

Constructor Detail

X9ECParameters

public X9ECParameters(ASN1Sequence seq)

X9ECParameters

public X9ECParameters(ECCurve curve,
                      ECPoint g,
                      java.math.BigInteger n)

X9ECParameters

public X9ECParameters(ECCurve curve,
                      ECPoint g,
                      java.math.BigInteger n,
                      java.math.BigInteger h)

X9ECParameters

public X9ECParameters(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()

getSeed

public byte[] getSeed()

toASN1Object

public DERObject toASN1Object()

Produce an object suitable for an ASN1OutputStream.

  ECParameters ::= SEQUENCE {
      version         INTEGER { ecpVer1(1) } (ecpVer1),
      fieldID         FieldID {{FieldTypes}},
      curve           X9Curve,
      base            X9ECPoint,
      order           INTEGER,
      cofactor        INTEGER OPTIONAL
  }
 

Specified by:

toASN1Object in class ASN1Encodable