157 lines
3.5 KiB
C#
157 lines
3.5 KiB
C#
using System.Collections;
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using Org.BouncyCastle.Asn1.Anssi;
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using Org.BouncyCastle.Asn1.CryptoPro;
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using Org.BouncyCastle.Asn1.GM;
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using Org.BouncyCastle.Asn1.Nist;
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using Org.BouncyCastle.Asn1.Sec;
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using Org.BouncyCastle.Asn1.TeleTrust;
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using Org.BouncyCastle.Crypto.Parameters;
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using Org.BouncyCastle.Utilities;
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using Org.BouncyCastle.Utilities.Collections;
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namespace Org.BouncyCastle.Asn1.X9;
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public class ECNamedCurveTable
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{
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public static IEnumerable Names
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{
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get
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{
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IList list = Platform.CreateArrayList();
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CollectionUtilities.AddRange(list, X962NamedCurves.Names);
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CollectionUtilities.AddRange(list, SecNamedCurves.Names);
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CollectionUtilities.AddRange(list, NistNamedCurves.Names);
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CollectionUtilities.AddRange(list, TeleTrusTNamedCurves.Names);
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CollectionUtilities.AddRange(list, AnssiNamedCurves.Names);
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CollectionUtilities.AddRange(list, ECGost3410NamedCurves.Names);
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CollectionUtilities.AddRange(list, GMNamedCurves.Names);
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return list;
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}
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}
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public static X9ECParameters GetByName(string name)
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{
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X9ECParameters x9ECParameters = X962NamedCurves.GetByName(name);
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if (x9ECParameters == null)
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{
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x9ECParameters = SecNamedCurves.GetByName(name);
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}
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if (x9ECParameters == null)
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{
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x9ECParameters = NistNamedCurves.GetByName(name);
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}
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if (x9ECParameters == null)
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{
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x9ECParameters = TeleTrusTNamedCurves.GetByName(name);
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}
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if (x9ECParameters == null)
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{
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x9ECParameters = AnssiNamedCurves.GetByName(name);
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}
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if (x9ECParameters == null)
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{
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x9ECParameters = FromDomainParameters(ECGost3410NamedCurves.GetByName(name));
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}
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if (x9ECParameters == null)
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{
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x9ECParameters = GMNamedCurves.GetByName(name);
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}
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return x9ECParameters;
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}
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public static string GetName(DerObjectIdentifier oid)
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{
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string name = X962NamedCurves.GetName(oid);
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if (name == null)
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{
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name = SecNamedCurves.GetName(oid);
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}
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if (name == null)
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{
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name = NistNamedCurves.GetName(oid);
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}
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if (name == null)
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{
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name = TeleTrusTNamedCurves.GetName(oid);
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}
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if (name == null)
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{
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name = AnssiNamedCurves.GetName(oid);
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}
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if (name == null)
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{
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name = ECGost3410NamedCurves.GetName(oid);
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}
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if (name == null)
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{
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name = GMNamedCurves.GetName(oid);
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}
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return name;
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}
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public static DerObjectIdentifier GetOid(string name)
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{
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DerObjectIdentifier oid = X962NamedCurves.GetOid(name);
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if (oid == null)
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{
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oid = SecNamedCurves.GetOid(name);
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}
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if (oid == null)
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{
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oid = NistNamedCurves.GetOid(name);
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}
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if (oid == null)
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{
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oid = TeleTrusTNamedCurves.GetOid(name);
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}
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if (oid == null)
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{
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oid = AnssiNamedCurves.GetOid(name);
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}
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if (oid == null)
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{
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oid = ECGost3410NamedCurves.GetOid(name);
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}
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if (oid == null)
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{
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oid = GMNamedCurves.GetOid(name);
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}
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return oid;
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}
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public static X9ECParameters GetByOid(DerObjectIdentifier oid)
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{
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X9ECParameters x9ECParameters = X962NamedCurves.GetByOid(oid);
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if (x9ECParameters == null)
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{
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x9ECParameters = SecNamedCurves.GetByOid(oid);
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}
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if (x9ECParameters == null)
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{
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x9ECParameters = TeleTrusTNamedCurves.GetByOid(oid);
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}
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if (x9ECParameters == null)
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{
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x9ECParameters = AnssiNamedCurves.GetByOid(oid);
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}
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if (x9ECParameters == null)
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{
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x9ECParameters = FromDomainParameters(ECGost3410NamedCurves.GetByOid(oid));
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}
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if (x9ECParameters == null)
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{
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x9ECParameters = GMNamedCurves.GetByOid(oid);
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}
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return x9ECParameters;
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}
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private static X9ECParameters FromDomainParameters(ECDomainParameters dp)
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{
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if (dp != null)
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{
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return new X9ECParameters(dp.Curve, dp.G, dp.N, dp.H, dp.GetSeed());
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}
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return null;
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}
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}
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