org.gudy.bouncycastle.asn1.x9
Class X9ECParameters

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

All Implemented Interfaces:

DEREncodable, X9ObjectIdentifiers

public class X9ECParameters
extends java.lang.Object
implements DEREncodable, X9ObjectIdentifiers

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

Field Summary

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

ansi_X9_62, characteristic_two_field, dhpublicnumber, ecdsa_with_SHA1, ellipticCurve, gnBasis, id_dsa, id_dsa_with_sha1, id_ecPublicKey, id_ecSigType, id_fieldType, id_publicKeyType, ppBasis, prime_field, prime192v1, prime192v2, prime192v3, prime239v1, prime239v2, prime239v3, prime256v1, primeCurve, tpBasis

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

Methods inherited from class java.lang.Object

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

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()

getDERObject

public DERObject getDERObject()

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:

getDERObject in interface DEREncodable