001package org.apache.commons.ssl.org.bouncycastle.asn1.cryptopro;
002
003import java.math.BigInteger;
004import java.util.Enumeration;
005import java.util.Hashtable;
006
007import org.apache.commons.ssl.org.bouncycastle.asn1.ASN1ObjectIdentifier;
008import org.bouncycastle.crypto.params.ECDomainParameters;
009import org.bouncycastle.math.ec.ECConstants;
010import org.bouncycastle.math.ec.ECCurve;
011
012/**
013 * table of the available named parameters for GOST 3410-2001.
014 */
015public class ECGOST3410NamedCurves
016{
017    static final Hashtable objIds = new Hashtable();
018    static final Hashtable params = new Hashtable();
019    static final Hashtable names = new Hashtable();
020
021    static
022    {
023        BigInteger mod_p = new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639319");
024        BigInteger mod_q = new BigInteger("115792089237316195423570985008687907853073762908499243225378155805079068850323");
025
026        ECCurve.Fp curve = new ECCurve.Fp(
027            mod_p, // p
028            new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639316"), // a
029            new BigInteger("166"), // b
030            mod_q,
031            ECConstants.ONE);
032
033        ECDomainParameters ecParams = new ECDomainParameters(
034            curve,
035            curve.createPoint(
036                new BigInteger("1"), // x
037                new BigInteger("64033881142927202683649881450433473985931760268884941288852745803908878638612")), // y
038            mod_q);
039
040        params.put(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_A, ecParams);  
041
042        mod_p = new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639319");
043        mod_q = new BigInteger("115792089237316195423570985008687907853073762908499243225378155805079068850323");
044
045        curve = new ECCurve.Fp(
046            mod_p, // p
047            new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639316"),
048            new BigInteger("166"),
049            mod_q,
050            ECConstants.ONE);
051
052        ecParams = new ECDomainParameters(
053            curve,
054            curve.createPoint(
055                new BigInteger("1"), // x
056                new BigInteger("64033881142927202683649881450433473985931760268884941288852745803908878638612")), // y
057            mod_q);
058
059        params.put(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_XchA, ecParams); 
060
061        mod_p = new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564823193"); //p
062        mod_q = new BigInteger("57896044618658097711785492504343953927102133160255826820068844496087732066703"); //q
063
064        curve = new ECCurve.Fp(
065            mod_p, // p
066            new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564823190"), // a
067            new BigInteger("28091019353058090096996979000309560759124368558014865957655842872397301267595"), // b
068            mod_q,
069            ECConstants.ONE);
070
071        ecParams = new ECDomainParameters(
072            curve,
073            curve.createPoint(
074                new BigInteger("1"), // x
075                new BigInteger("28792665814854611296992347458380284135028636778229113005756334730996303888124")), // y
076            mod_q); // q
077
078        params.put(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_B, ecParams);  
079
080        mod_p = new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502619");
081        mod_q = new BigInteger("70390085352083305199547718019018437840920882647164081035322601458352298396601");
082
083        curve = new ECCurve.Fp(
084            mod_p, // p
085            new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502616"),
086            new BigInteger("32858"),
087            mod_q,
088            ECConstants.ONE);
089
090        ecParams = new ECDomainParameters(
091            curve,
092            curve.createPoint(
093                new BigInteger("0"),
094                new BigInteger("29818893917731240733471273240314769927240550812383695689146495261604565990247")),
095            mod_q);
096
097        params.put(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_XchB, ecParams);  
098
099        mod_p = new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502619"); //p
100        mod_q = new BigInteger("70390085352083305199547718019018437840920882647164081035322601458352298396601"); //q
101        curve = new ECCurve.Fp(
102            mod_p, // p
103            new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502616"), // a
104            new BigInteger("32858"), // b
105            mod_q,
106            ECConstants.ONE);
107
108        ecParams = new ECDomainParameters(
109            curve,
110            curve.createPoint(
111                new BigInteger("0"), // x
112                new BigInteger("29818893917731240733471273240314769927240550812383695689146495261604565990247")), // y
113            mod_q); // q
114
115        params.put(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_C, ecParams); 
116
117        objIds.put("GostR3410-2001-CryptoPro-A", CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_A);
118        objIds.put("GostR3410-2001-CryptoPro-B", CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_B);
119        objIds.put("GostR3410-2001-CryptoPro-C", CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_C);
120        objIds.put("GostR3410-2001-CryptoPro-XchA", CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_XchA);
121        objIds.put("GostR3410-2001-CryptoPro-XchB", CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_XchB);
122
123        names.put(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_A, "GostR3410-2001-CryptoPro-A");
124        names.put(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_B, "GostR3410-2001-CryptoPro-B");
125        names.put(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_C, "GostR3410-2001-CryptoPro-C");
126        names.put(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_XchA, "GostR3410-2001-CryptoPro-XchA");
127        names.put(CryptoProObjectIdentifiers.gostR3410_2001_CryptoPro_XchB, "GostR3410-2001-CryptoPro-XchB");
128    }
129
130    /**
131     * return the ECDomainParameters object for the given OID, null if it 
132     * isn't present.
133     *
134     * @param oid an object identifier representing a named parameters, if present.
135     */
136    public static ECDomainParameters getByOID(
137        ASN1ObjectIdentifier  oid)
138    {
139        return (ECDomainParameters)params.get(oid);
140    }
141
142    /**
143     * returns an enumeration containing the name strings for parameters
144     * contained in this structure.
145     */
146    public static Enumeration getNames()
147    {
148        return objIds.keys();
149    }
150
151    public static ECDomainParameters getByName(
152        String  name)
153    {
154        ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier)objIds.get(name);
155
156        if (oid != null)
157        {
158            return (ECDomainParameters)params.get(oid);
159        }
160
161        return null;
162    }
163
164    /**
165     * return the named curve name represented by the given object identifier.
166     */
167    public static String getName(
168        ASN1ObjectIdentifier  oid)
169    {
170        return (String)names.get(oid);
171    }
172    
173    public static ASN1ObjectIdentifier getOID(String name)
174    {
175        return (ASN1ObjectIdentifier)objIds.get(name);
176    }
177}