ECGost3410NamedCurves
Elliptic curve registry for GOST 3410-2001 / 2012.
using Org.BouncyCastle.Asn1.Rosstandart;
using Org.BouncyCastle.Asn1.X9;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Math.EC;
using Org.BouncyCastle.Math.EC.Multiplier;
using Org.BouncyCastle.Utilities.Collections;
using Org.BouncyCastle.Utilities.Encoders;
using System;
using System.Collections.Generic;
namespace Org.BouncyCastle.Asn1.CryptoPro
{
public static class ECGost3410NamedCurves
{
internal class Holder_gostR3410_2001_CryptoPro_A : X9ECParametersHolder
{
internal static readonly X9ECParametersHolder Instance = new Holder_gostR3410_2001_CryptoPro_A();
private Holder_gostR3410_2001_CryptoPro_A()
{
}
protected override ECCurve CreateCurve()
{
return ConfigureCurve(new FpCurve(FromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD97"), order: FromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF6C611070995AD10045841B09B761B893"), a: FromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD94"), b: FromHex("A6"), cofactor: BigInteger.One, isInternal: true));
}
protected override X9ECParameters CreateParameters()
{
byte[] seed = null;
ECCurve curve = base.Curve;
X9ECPoint g = ConfigureBasepoint(curve, BigInteger.One, FromHex("8D91E471E0989CDA27DF505A453F2B7635294F2DDF23E3B122ACC99C9E9F1E14"));
return new X9ECParameters(curve, g, curve.Order, curve.Cofactor, seed);
}
}
internal class Holder_gostR3410_2001_CryptoPro_B : X9ECParametersHolder
{
internal static readonly X9ECParametersHolder Instance = new Holder_gostR3410_2001_CryptoPro_B();
private Holder_gostR3410_2001_CryptoPro_B()
{
}
protected override ECCurve CreateCurve()
{
return ConfigureCurve(new FpCurve(FromHex("8000000000000000000000000000000000000000000000000000000000000C99"), order: FromHex("800000000000000000000000000000015F700CFFF1A624E5E497161BCC8A198F"), a: FromHex("8000000000000000000000000000000000000000000000000000000000000C96"), b: FromHex("3E1AF419A269A5F866A7D3C25C3DF80AE979259373FF2B182F49D4CE7E1BBC8B"), cofactor: BigInteger.One, isInternal: true));
}
protected override X9ECParameters CreateParameters()
{
byte[] seed = null;
ECCurve curve = base.Curve;
X9ECPoint g = ConfigureBasepoint(curve, BigInteger.One, FromHex("3FA8124359F96680B83D1C3EB2C070E5C545C9858D03ECFB744BF8D717717EFC"));
return new X9ECParameters(curve, g, curve.Order, curve.Cofactor, seed);
}
}
internal class Holder_gostR3410_2001_CryptoPro_C : X9ECParametersHolder
{
internal static readonly X9ECParametersHolder Instance = new Holder_gostR3410_2001_CryptoPro_C();
private Holder_gostR3410_2001_CryptoPro_C()
{
}
protected override ECCurve CreateCurve()
{
return ConfigureCurve(new FpCurve(FromHex("9B9F605F5A858107AB1EC85E6B41C8AACF846E86789051D37998F7B9022D759B"), order: FromHex("9B9F605F5A858107AB1EC85E6B41C8AA582CA3511EDDFB74F02F3A6598980BB9"), a: FromHex("9B9F605F5A858107AB1EC85E6B41C8AACF846E86789051D37998F7B9022D7598"), b: FromHex("805A"), cofactor: BigInteger.One, isInternal: true));
}
protected override X9ECParameters CreateParameters()
{
byte[] seed = null;
ECCurve curve = base.Curve;
X9ECPoint g = ConfigureBasepoint(curve, BigInteger.Zero, FromHex("41ECE55743711A8C3CBF3783CD08C0EE4D4DC440D4641A8F366E550DFDB3BB67"));
return new X9ECParameters(curve, g, curve.Order, curve.Cofactor, seed);
}
}
internal class Holder_id_tc26_gost_3410_12_256_paramSetA : X9ECParametersHolder
{
internal static readonly X9ECParametersHolder Instance = new Holder_id_tc26_gost_3410_12_256_paramSetA();
private Holder_id_tc26_gost_3410_12_256_paramSetA()
{
}
protected override ECCurve CreateCurve()
{
return ConfigureCurve(new FpCurve(FromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD97"), order: FromHex("400000000000000000000000000000000FD8CDDFC87B6635C115AF556C360C67"), a: FromHex("C2173F1513981673AF4892C23035A27CE25E2013BF95AA33B22C656F277E7335"), b: FromHex("295F9BAE7428ED9CCC20E7C359A9D41A22FCCD9108E17BF7BA9337A6F8AE9513"), cofactor: BigInteger.Four, isInternal: true));
}
protected override X9ECParameters CreateParameters()
{
byte[] seed = null;
ECCurve curve = base.Curve;
X9ECPoint g = ConfigureBasepoint(curve, FromHex("91E38443A5E82C0D880923425712B2BB658B9196932E02C78B2582FE742DAA28"), FromHex("32879423AB1A0375895786C4BB46E9565FDE0B5344766740AF268ADB32322E5C"));
return new X9ECParameters(curve, g, curve.Order, curve.Cofactor, seed);
}
}
internal class Holder_id_tc26_gost_3410_12_512_paramSetA : X9ECParametersHolder
{
internal static readonly X9ECParametersHolder Instance = new Holder_id_tc26_gost_3410_12_512_paramSetA();
private Holder_id_tc26_gost_3410_12_512_paramSetA()
{
}
protected override ECCurve CreateCurve()
{
return ConfigureCurve(new FpCurve(FromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDC7"), order: FromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF27E69532F48D89116FF22B8D4E0560609B4B38ABFAD2B85DCACDB1411F10B275"), a: FromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDC4"), b: FromHex("E8C2505DEDFC86DDC1BD0B2B6667F1DA34B82574761CB0E879BD081CFD0B6265EE3CB090F30D27614CB4574010DA90DD862EF9D4EBEE4761503190785A71C760"), cofactor: BigInteger.One, isInternal: true));
}
protected override X9ECParameters CreateParameters()
{
byte[] seed = null;
ECCurve curve = base.Curve;
X9ECPoint g = ConfigureBasepoint(curve, BigInteger.Three, FromHex("7503CFE87A836AE3A61B8816E25450E6CE5E1C93ACF1ABC1778064FDCBEFA921DF1626BE4FD036E93D75E6A50E3A41E98028FE5FC235F5B889A589CB5215F2A4"));
return new X9ECParameters(curve, g, curve.Order, curve.Cofactor, seed);
}
}
internal class Holder_id_tc26_gost_3410_12_512_paramSetB : X9ECParametersHolder
{
internal static readonly X9ECParametersHolder Instance = new Holder_id_tc26_gost_3410_12_512_paramSetB();
private Holder_id_tc26_gost_3410_12_512_paramSetB()
{
}
protected override ECCurve CreateCurve()
{
return ConfigureCurve(new FpCurve(FromHex("8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006F"), order: FromHex("800000000000000000000000000000000000000000000000000000000000000149A1EC142565A545ACFDB77BD9D40CFA8B996712101BEA0EC6346C54374F25BD"), a: FromHex("8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006C"), b: FromHex("687D1B459DC841457E3E06CF6F5E2517B97C7D614AF138BCBF85DC806C4B289F3E965D2DB1416D217F8B276FAD1AB69C50F78BEE1FA3106EFB8CCBC7C5140116"), cofactor: BigInteger.One, isInternal: true));
}
protected override X9ECParameters CreateParameters()
{
byte[] seed = null;
ECCurve curve = base.Curve;
X9ECPoint g = ConfigureBasepoint(curve, BigInteger.Two, FromHex("1A8F7EDA389B094C2C071E3647A8940F3C123B697578C213BE6DD9E6C8EC7335DCB228FD1EDF4A39152CBCAAF8C0398828041055F94CEEEC7E21340780FE41BD"));
return new X9ECParameters(curve, g, curve.Order, curve.Cofactor, seed);
}
}
internal class Holder_id_tc26_gost_3410_12_512_paramSetC : X9ECParametersHolder
{
internal static readonly X9ECParametersHolder Instance = new Holder_id_tc26_gost_3410_12_512_paramSetC();
private Holder_id_tc26_gost_3410_12_512_paramSetC()
{
}
protected override ECCurve CreateCurve()
{
return ConfigureCurve(new FpCurve(FromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDC7"), order: FromHex("3FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC98CDBA46506AB004C33A9FF5147502CC8EDA9E7A769A12694623CEF47F023ED"), a: FromHex("DC9203E514A721875485A529D2C722FB187BC8980EB866644DE41C68E143064546E861C0E2C9EDD92ADE71F46FCF50FF2AD97F951FDA9F2A2EB6546F39689BD3"), b: FromHex("B4C4EE28CEBC6C2C8AC12952CF37F16AC7EFB6A9F69F4B57FFDA2E4F0DE5ADE038CBC2FFF719D2C18DE0284B8BFEF3B52B8CC7A5F5BF0A3C8D2319A5312557E1"), cofactor: BigInteger.Four, isInternal: true));
}
protected override X9ECParameters CreateParameters()
{
byte[] seed = null;
ECCurve curve = base.Curve;
X9ECPoint g = ConfigureBasepoint(curve, FromHex("E2E31EDFC23DE7BDEBE241CE593EF5DE2295B7A9CBAEF021D385F7074CEA043AA27272A7AE602BF2A7B9033DB9ED3610C6FB85487EAE97AAC5BC7928C1950148"), FromHex("F5CE40D95B5EB899ABBCCFF5911CB8577939804D6527378B8C108C3D2090FF9BE18E2D33E3021ED2EF32D85822423B6304F726AA854BAE07D0396E9A9ADDC40F"));
return new X9ECParameters(curve, g, curve.Order, curve.Cofactor, seed);
}
}
private static readonly Dictionary<string, DerObjectIdentifier> objIds;
private static readonly Dictionary<DerObjectIdentifier, X9ECParametersHolder> curves;
private static readonly Dictionary<DerObjectIdentifier, string> names;
public static IEnumerable<string> Names => CollectionUtilities.Proxy(objIds.Keys);
private static X9ECPoint ConfigureBasepoint(ECCurve curve, BigInteger x, BigInteger y)
{
ECPoint p = curve.CreatePoint(x, y);
WNafUtilities.ConfigureBasepoint(p);
return new X9ECPoint(p, false);
}
private static ECCurve ConfigureCurve(ECCurve curve)
{
return curve;
}
private static BigInteger FromHex(string hex)
{
return new BigInteger(1, Hex.DecodeStrict(hex));
}
private static void DefineCurve(string name, DerObjectIdentifier oid, X9ECParametersHolder holder)
{
objIds.Add(name, oid);
names.Add(oid, name);
curves.Add(oid, holder);
}
static ECGost3410NamedCurves()
{
objIds = new Dictionary<string, DerObjectIdentifier>(StringComparer.OrdinalIgnoreCase);
curves = new Dictionary<DerObjectIdentifier, X9ECParametersHolder>();
names = new Dictionary<DerObjectIdentifier, string>();
DefineCurve("GostR3410-2001-CryptoPro-A", CryptoProObjectIdentifiers.GostR3410x2001CryptoProA, Holder_gostR3410_2001_CryptoPro_A.Instance);
DefineCurve("GostR3410-2001-CryptoPro-B", CryptoProObjectIdentifiers.GostR3410x2001CryptoProB, Holder_gostR3410_2001_CryptoPro_B.Instance);
DefineCurve("GostR3410-2001-CryptoPro-C", CryptoProObjectIdentifiers.GostR3410x2001CryptoProC, Holder_gostR3410_2001_CryptoPro_C.Instance);
DefineCurve("GostR3410-2001-CryptoPro-XchA", CryptoProObjectIdentifiers.GostR3410x2001CryptoProXchA, Holder_gostR3410_2001_CryptoPro_A.Instance);
DefineCurve("GostR3410-2001-CryptoPro-XchB", CryptoProObjectIdentifiers.GostR3410x2001CryptoProXchB, Holder_gostR3410_2001_CryptoPro_C.Instance);
DefineCurve("Tc26-Gost-3410-12-256-paramSetA", RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256_paramSetA, Holder_id_tc26_gost_3410_12_256_paramSetA.Instance);
DefineCurve("Tc26-Gost-3410-12-256-paramSetB", RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256_paramSetB, Holder_gostR3410_2001_CryptoPro_A.Instance);
DefineCurve("Tc26-Gost-3410-12-256-paramSetC", RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256_paramSetC, Holder_gostR3410_2001_CryptoPro_B.Instance);
DefineCurve("Tc26-Gost-3410-12-256-paramSetD", RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256_paramSetD, Holder_gostR3410_2001_CryptoPro_C.Instance);
DefineCurve("Tc26-Gost-3410-12-512-paramSetA", RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512_paramSetA, Holder_id_tc26_gost_3410_12_512_paramSetA.Instance);
DefineCurve("Tc26-Gost-3410-12-512-paramSetB", RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512_paramSetB, Holder_id_tc26_gost_3410_12_512_paramSetB.Instance);
DefineCurve("Tc26-Gost-3410-12-512-paramSetC", RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512_paramSetC, Holder_id_tc26_gost_3410_12_512_paramSetC.Instance);
}
public static X9ECParameters GetByName(string name)
{
DerObjectIdentifier oid = GetOid(name);
if (oid != null)
return GetByOid(oid);
return null;
}
public static X9ECParametersHolder GetByNameLazy(string name)
{
DerObjectIdentifier oid = GetOid(name);
if (oid != null)
return GetByOidLazy(oid);
return null;
}
public static X9ECParameters GetByOid(DerObjectIdentifier oid)
{
return GetByOidLazy(oid)?.Parameters;
}
public static X9ECParametersHolder GetByOidLazy(DerObjectIdentifier oid)
{
return CollectionUtilities.GetValueOrNull(curves, oid);
}
public static string GetName(DerObjectIdentifier oid)
{
return CollectionUtilities.GetValueOrNull(names, oid);
}
public static DerObjectIdentifier GetOid(string name)
{
return CollectionUtilities.GetValueOrNull(objIds, name);
}
}
}