Package org.bouncycastle.asn1.x9
Class X9FieldID
java.lang.Object
org.bouncycastle.asn1.ASN1Object
org.bouncycastle.asn1.x9.X9FieldID
- All Implemented Interfaces:
ASN1Encodable,X9ObjectIdentifiers,Encodable
ASN.1 def for Elliptic-Curve Field ID structure. See
X9.62, for further details.
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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
ConstructorsConstructorDescriptionX9FieldID(int m, int k1) Constructor for elliptic curves over binary fieldsF2m.X9FieldID(int m, int k1, int k2, int k3) Constructor for elliptic curves over binary fieldsF2m.X9FieldID(BigInteger primeP) Constructor for elliptic curves over prime fieldsF2. -
Method Summary
Modifier and TypeMethodDescriptionstatic X9FieldIDgetInstance(Object obj) Produce a DER encoding of the following structure.Methods inherited from class org.bouncycastle.asn1.ASN1Object
encodeTo, encodeTo, equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode
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Constructor Details
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X9FieldID
Constructor for elliptic curves over prime fieldsF2.- Parameters:
primeP- The primepdefining the prime field.
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X9FieldID
public X9FieldID(int m, int k1) Constructor for elliptic curves over binary fieldsF2m.- Parameters:
m- The exponentmofF2m.k1- The integerk1wherexm + xk1 + 1represents the reduction polynomialf(z).
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X9FieldID
public X9FieldID(int m, int k1, int k2, int k3) Constructor for elliptic curves over binary fieldsF2m.- Parameters:
m- The exponentmofF2m.k1- The integerk1wherexm + xk3 + xk2 + xk1 + 1represents the reduction polynomialf(z).k2- The integerk2wherexm + xk3 + xk2 + xk1 + 1represents the reduction polynomialf(z).k3- The integerk3wherexm + xk3 + xk2 + xk1 + 1represents the reduction polynomialf(z)..
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Method Details
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getInstance
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getIdentifier
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getParameters
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toASN1Primitive
Produce a DER encoding of the following structure.FieldID ::= SEQUENCE { fieldType FIELD-ID.&id({IOSet}), parameters FIELD-ID.&Type({IOSet}{@fieldType}) }- Specified by:
toASN1Primitivein interfaceASN1Encodable- Specified by:
toASN1Primitivein classASN1Object- Returns:
- a primitive representation of this object.
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