Initial import of old CVS repository

1 files changed, 179 insertions, 0 deletions

diff --git a/crypto/src/asn1/cryptopro/ECGOST3410NamedCurves.cs b/crypto/src/asn1/cryptopro/ECGOST3410NamedCurves.cs
new file mode 100644
index 000000000..998e0e06f
--- /dev/null
+++ b/crypto/src/asn1/cryptopro/ECGOST3410NamedCurves.cs
@@ -0,0 +1,179 @@
+using System;
+using System.Collections;
+
+using Org.BouncyCastle.Asn1;
+using Org.BouncyCastle.Crypto.Parameters;
+using Org.BouncyCastle.Math;
+using Org.BouncyCastle.Math.EC;
+using Org.BouncyCastle.Utilities;
+using Org.BouncyCastle.Utilities.Collections;
+
+namespace Org.BouncyCastle.Asn1.CryptoPro
+{
+    /**
+    * table of the available named parameters for GOST 3410-2001.
+    */
+    public sealed class ECGost3410NamedCurves
+    {
+		private ECGost3410NamedCurves()
+		{
+		}
+
+        internal static readonly IDictionary objIds = Platform.CreateHashtable();
+        internal static readonly IDictionary parameters = Platform.CreateHashtable();
+        internal static readonly IDictionary names = Platform.CreateHashtable();
+
+        static ECGost3410NamedCurves()
+        {
+            BigInteger mod_p = new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639319");
+            BigInteger mod_q = new BigInteger("115792089237316195423570985008687907853073762908499243225378155805079068850323");
+
+            FpCurve curve = new FpCurve(
+                mod_p, // p
+                new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639316"), // a
+                new BigInteger("166")); // b
+
+            ECDomainParameters ecParams = new ECDomainParameters(
+                curve,
+				curve.CreatePoint(
+					BigInteger.One, // x
+					new BigInteger("64033881142927202683649881450433473985931760268884941288852745803908878638612"), // y
+					false),
+                mod_q);
+
+			parameters[CryptoProObjectIdentifiers.GostR3410x2001CryptoProA] = ecParams;
+
+            mod_p = new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639319");
+            mod_q = new BigInteger("115792089237316195423570985008687907853073762908499243225378155805079068850323");
+
+            curve = new FpCurve(
+                mod_p, // p
+                new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639316"),
+                new BigInteger("166"));
+
+            ecParams = new ECDomainParameters(
+                curve,
+				curve.CreatePoint(
+					BigInteger.One, // x
+					new BigInteger("64033881142927202683649881450433473985931760268884941288852745803908878638612"), // y
+					false),
+                mod_q);
+
+            parameters[CryptoProObjectIdentifiers.GostR3410x2001CryptoProXchA] = ecParams;
+
+            mod_p = new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564823193"); //p
+            mod_q = new BigInteger("57896044618658097711785492504343953927102133160255826820068844496087732066703"); //q
+
+            curve = new FpCurve(
+                mod_p, // p
+                new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564823190"), // a
+                new BigInteger("28091019353058090096996979000309560759124368558014865957655842872397301267595")); // b
+
+            ecParams = new ECDomainParameters(
+                curve,
+                curve.CreatePoint(
+					BigInteger.One, // x
+					new BigInteger("28792665814854611296992347458380284135028636778229113005756334730996303888124"), // y
+					false),
+                mod_q); // q
+
+            parameters[CryptoProObjectIdentifiers.GostR3410x2001CryptoProB] = ecParams;
+
+            mod_p = new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502619");
+            mod_q = new BigInteger("70390085352083305199547718019018437840920882647164081035322601458352298396601");
+
+            curve = new FpCurve(
+                mod_p, // p
+                new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502616"),
+                new BigInteger("32858"));
+
+            ecParams = new ECDomainParameters(
+                curve,
+                curve.CreatePoint(
+					BigInteger.Zero, // x
+					new BigInteger("29818893917731240733471273240314769927240550812383695689146495261604565990247"), // y
+					false),
+                mod_q);
+
+            parameters[CryptoProObjectIdentifiers.GostR3410x2001CryptoProXchB] = ecParams;
+
+            mod_p = new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502619"); //p
+            mod_q = new BigInteger("70390085352083305199547718019018437840920882647164081035322601458352298396601"); //q
+            curve = new FpCurve(
+                mod_p, // p
+                new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502616"), // a
+                new BigInteger("32858")); // b
+
+            ecParams = new ECDomainParameters(
+                curve,
+                curve.CreatePoint(
+					BigInteger.Zero, // x
+					new BigInteger("29818893917731240733471273240314769927240550812383695689146495261604565990247"), // y
+					false),
+                mod_q); // q
+
+			parameters[CryptoProObjectIdentifiers.GostR3410x2001CryptoProC] = ecParams;
+
+            objIds["GostR3410-2001-CryptoPro-A"] = CryptoProObjectIdentifiers.GostR3410x2001CryptoProA;
+            objIds["GostR3410-2001-CryptoPro-B"] = CryptoProObjectIdentifiers.GostR3410x2001CryptoProB;
+            objIds["GostR3410-2001-CryptoPro-C"] = CryptoProObjectIdentifiers.GostR3410x2001CryptoProC;
+            objIds["GostR3410-2001-CryptoPro-XchA"] = CryptoProObjectIdentifiers.GostR3410x2001CryptoProXchA;
+            objIds["GostR3410-2001-CryptoPro-XchB"] = CryptoProObjectIdentifiers.GostR3410x2001CryptoProXchB;
+
+            names[CryptoProObjectIdentifiers.GostR3410x2001CryptoProA] = "GostR3410-2001-CryptoPro-A";
+            names[CryptoProObjectIdentifiers.GostR3410x2001CryptoProB] = "GostR3410-2001-CryptoPro-B";
+            names[CryptoProObjectIdentifiers.GostR3410x2001CryptoProC] = "GostR3410-2001-CryptoPro-C";
+            names[CryptoProObjectIdentifiers.GostR3410x2001CryptoProXchA] = "GostR3410-2001-CryptoPro-XchA";
+            names[CryptoProObjectIdentifiers.GostR3410x2001CryptoProXchB] = "GostR3410-2001-CryptoPro-XchB";
+        }
+
+        /**
+        * return the ECDomainParameters object for the given OID, null if it
+        * isn't present.
+        *
+        * @param oid an object identifier representing a named parameters, if present.
+        */
+        public static ECDomainParameters GetByOid(
+            DerObjectIdentifier oid)
+        {
+            return (ECDomainParameters) parameters[oid];
+        }
+
+		/**
+		 * returns an enumeration containing the name strings for curves
+		 * contained in this structure.
+		 */
+		public static IEnumerable Names
+		{
+			get { return new EnumerableProxy(objIds.Keys); }
+		}
+
+        public static ECDomainParameters GetByName(
+            string name)
+        {
+            DerObjectIdentifier oid = (DerObjectIdentifier) objIds[name];
+
+            if (oid != null)
+            {
+                return (ECDomainParameters) parameters[oid];
+            }
+
+            return null;
+        }
+
+        /**
+        * return the named curve name represented by the given object identifier.
+        */
+        public static string GetName(
+            DerObjectIdentifier oid)
+        {
+            return (string) names[oid];
+        }
+
+		public static DerObjectIdentifier GetOid(
+			string name)
+        {
+            return (DerObjectIdentifier) objIds[name];
+        }
+    }
+}