Package org.bouncycastle.asn1.x9
Class X9ECParameters
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- org.bouncycastle.asn1.ASN1Object
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- org.bouncycastle.asn1.x9.X9ECParameters
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- All Implemented Interfaces:
ASN1Encodable,X9ObjectIdentifiers,Encodable
public class X9ECParameters extends ASN1Object implements X9ObjectIdentifiers
ASN.1 def for Elliptic-Curve ECParameters structure. See X9.62, for further details.
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Field Summary
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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
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Constructor Summary
Constructors Constructor Description X9ECParameters(ECCurve curve, X9ECPoint g, java.math.BigInteger n)X9ECParameters(ECCurve curve, X9ECPoint g, java.math.BigInteger n, java.math.BigInteger h)X9ECParameters(ECCurve curve, X9ECPoint g, java.math.BigInteger n, java.math.BigInteger h, byte[] seed)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description X9ECPointgetBaseEntry()Return the ASN.1 entry representing the base point G.ECCurvegetCurve()X9CurvegetCurveEntry()Return the ASN.1 entry representing the Curve.X9FieldIDgetFieldIDEntry()Return the ASN.1 entry representing the FieldID.ECPointgetG()java.math.BigIntegergetH()static X9ECParametersgetInstance(java.lang.Object obj)java.math.BigIntegergetN()byte[]getSeed()booleanhasSeed()ASN1PrimitivetoASN1Primitive()Produce an object suitable for an ASN1OutputStream.-
Methods inherited from class org.bouncycastle.asn1.ASN1Object
encodeTo, encodeTo, equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode
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Method Detail
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getInstance
public static X9ECParameters getInstance(java.lang.Object obj)
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getCurve
public ECCurve getCurve()
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getG
public ECPoint getG()
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getN
public java.math.BigInteger getN()
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getH
public java.math.BigInteger getH()
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getSeed
public byte[] getSeed()
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hasSeed
public boolean hasSeed()
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getCurveEntry
public X9Curve getCurveEntry()
Return the ASN.1 entry representing the Curve.- Returns:
- the X9Curve for the curve in these parameters.
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getFieldIDEntry
public X9FieldID getFieldIDEntry()
Return the ASN.1 entry representing the FieldID.- Returns:
- the X9FieldID for the FieldID in these parameters.
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getBaseEntry
public X9ECPoint getBaseEntry()
Return the ASN.1 entry representing the base point G.- Returns:
- the X9ECPoint for the base point in these parameters.
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toASN1Primitive
public ASN1Primitive toASN1Primitive()
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:
toASN1Primitivein interfaceASN1Encodable- Specified by:
toASN1Primitivein classASN1Object- Returns:
- a primitive representation of this object.
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