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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.

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package org.bouncycastle.crypto.test;

import java.math.BigInteger;
import java.security.SecureRandom;

import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
import org.bouncycastle.crypto.digests.GOST3411Digest;
import org.bouncycastle.crypto.generators.ECKeyPairGenerator;
import org.bouncycastle.crypto.params.ECDomainParameters;
import org.bouncycastle.crypto.params.ECKeyGenerationParameters;
import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
import org.bouncycastle.crypto.params.ECPublicKeyParameters;
import org.bouncycastle.crypto.params.ParametersWithRandom;
import org.bouncycastle.crypto.signers.ECGOST3410Signer;
import org.bouncycastle.math.ec.ECConstants;
import org.bouncycastle.math.ec.ECCurve;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.test.SimpleTest;
import org.bouncycastle.util.test.TestRandomData;

/**
 *  ECGOST3410 tests are taken from GOST R 34.10-2001.
 */
public class ECGOST3410Test
    extends SimpleTest
 {
    byte[] hashmessage = Hex.decode("3042453136414534424341374533364339313734453431443642453241453435");
    
     /**
     * ECGOST3410 over the field Fp
*/ BigInteger r = new BigInteger("29700980915817952874371204983938256990422752107994319651632687982059210933395"); BigInteger s = new BigInteger("574973400270084654178925310019147038455227042649098563933718999175515839552"); byte[] kData = new BigInteger("53854137677348463731403841147996619241504003434302020712960838528893196233395").toByteArray(); SecureRandom k = new TestRandomData(kData); private void ecGOST3410_TEST() { BigInteger mod_p = new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564821041"); //p BigInteger mod_q = new BigInteger("57896044618658097711785492504343953927082934583725450622380973592137631069619"); ECCurve.Fp curve = new ECCurve.Fp( mod_p, // p new BigInteger("7"), // a new BigInteger("43308876546767276905765904595650931995942111794451039583252968842033849580414"), // b mod_q, ECConstants.ONE); ECDomainParameters params = new ECDomainParameters( curve, curve.createPoint( new BigInteger("2"), // x new BigInteger("4018974056539037503335449422937059775635739389905545080690979365213431566280")), // y mod_q); ECPrivateKeyParameters priKey = new ECPrivateKeyParameters( new BigInteger("55441196065363246126355624130324183196576709222340016572108097750006097525544"), // d params); ParametersWithRandom param = new ParametersWithRandom(priKey, k); ECGOST3410Signer ecgost3410 = new ECGOST3410Signer(); ecgost3410.init(true, param); byte[] mVal = new BigInteger("20798893674476452017134061561508270130637142515379653289952617252661468872421").toByteArray(); byte[] message = new byte[mVal.length]; for (int i = 0; i != mVal.length; i++) { message[i] = mVal[mVal.length - 1 - i]; } BigInteger[] sig = ecgost3410.generateSignature(message); if (!r.equals(sig[0])) { fail("r component wrong.", r, sig[0]); } if (!s.equals(sig[1])) { fail("s component wrong.", s, sig[1]); } // Verify the signature ECPublicKeyParameters pubKey = new ECPublicKeyParameters( curve.createPoint( new BigInteger("57520216126176808443631405023338071176630104906313632182896741342206604859403"), // x new BigInteger("17614944419213781543809391949654080031942662045363639260709847859438286763994")), // y params); ecgost3410.init(false, pubKey); if (!ecgost3410.verifySignature(message, sig[0], sig[1])) { fail("verification fails"); } } /** * Test Sign & Verify with test parameters * see: http://www.ietf.org/internet-drafts/draft-popov-cryptopro-cpalgs-01.txt * gostR3410-2001-TestParamSet P.46 */ private void ecGOST3410_TestParam() { SecureRandom random = new SecureRandom(); BigInteger mod_p = new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564821041"); //p BigInteger mod_q = new BigInteger("57896044618658097711785492504343953927082934583725450622380973592137631069619"); ECCurve.Fp curve = new ECCurve.Fp( mod_p, // p new BigInteger("7"), // a new BigInteger("43308876546767276905765904595650931995942111794451039583252968842033849580414"), // b mod_q, ECConstants.ONE); ECDomainParameters params = new ECDomainParameters( curve, curve.createPoint( new BigInteger("2"), // x new BigInteger("4018974056539037503335449422937059775635739389905545080690979365213431566280")), // y mod_q); ECKeyPairGenerator pGen = new ECKeyPairGenerator(); ECKeyGenerationParameters genParam = new ECKeyGenerationParameters( params, random); pGen.init(genParam); AsymmetricCipherKeyPair pair = pGen.generateKeyPair(); ParametersWithRandom param = new ParametersWithRandom(pair.getPrivate(), random); ECGOST3410Signer ecgost3410 = new ECGOST3410Signer(); ecgost3410.init(true, param); //get hash message using the digest GOST3411. byte[] message = "Message for sign".getBytes(); GOST3411Digest gost3411 = new GOST3411Digest(); gost3411.update(message, 0, message.length); byte[] hashmessage = new byte[gost3411.getDigestSize()]; gost3411.doFinal(hashmessage, 0); BigInteger[] sig = ecgost3410.generateSignature(hashmessage); ecgost3410.init(false, pair.getPublic()); if (!ecgost3410.verifySignature(hashmessage, sig[0], sig[1])) { fail("signature fails"); } } /** * Test Sign & Verify with A parameters * see: http://www.ietf.org/internet-drafts/draft-popov-cryptopro-cpalgs-01.txt * gostR3410-2001-CryptoPro-A-ParamSet P.47 */ public void ecGOST3410_AParam() { SecureRandom random = new SecureRandom(); BigInteger mod_p = new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639319"); //p BigInteger mod_q = new BigInteger("115792089237316195423570985008687907853073762908499243225378155805079068850323"); ECCurve.Fp curve = new ECCurve.Fp( mod_p, // p new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639316"), // a new BigInteger("166"), // b mod_q, ECConstants.ONE); ECDomainParameters params = new ECDomainParameters( curve, curve.createPoint( new BigInteger("1"), // x new BigInteger("64033881142927202683649881450433473985931760268884941288852745803908878638612")), // y mod_q); ECKeyPairGenerator pGen = new ECKeyPairGenerator(); ECKeyGenerationParameters genParam = new ECKeyGenerationParameters( params, random); pGen.init(genParam); AsymmetricCipherKeyPair pair = pGen.generateKeyPair(); ParametersWithRandom param = new ParametersWithRandom(pair.getPrivate(), random); ECGOST3410Signer ecgost3410 = new ECGOST3410Signer(); ecgost3410.init(true, param); BigInteger[] sig = ecgost3410.generateSignature(hashmessage); ecgost3410.init(false, pair.getPublic()); if (!ecgost3410.verifySignature(hashmessage, sig[0], sig[1])) { fail("signature fails"); } } /** * Test Sign & Verify with B parameters * see: http://www.ietf.org/internet-drafts/draft-popov-cryptopro-cpalgs-01.txt * gostR3410-2001-CryptoPro-B-ParamSet P.47-48 */ private void ecGOST3410_BParam() { SecureRandom random = new SecureRandom(); BigInteger mod_p = new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564823193"); //p BigInteger mod_q = new BigInteger("57896044618658097711785492504343953927102133160255826820068844496087732066703"); ECCurve.Fp curve = new ECCurve.Fp( mod_p, // p new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564823190"), // a new BigInteger("28091019353058090096996979000309560759124368558014865957655842872397301267595"), // b mod_q, ECConstants.ONE); ECDomainParameters params = new ECDomainParameters( curve, curve.createPoint( new BigInteger("1"), // x new BigInteger("28792665814854611296992347458380284135028636778229113005756334730996303888124")), // y mod_q); ECKeyPairGenerator pGen = new ECKeyPairGenerator(); ECKeyGenerationParameters genParam = new ECKeyGenerationParameters( params, random); pGen.init(genParam); AsymmetricCipherKeyPair pair = pGen.generateKeyPair(); ParametersWithRandom param = new ParametersWithRandom(pair.getPrivate(), random); ECGOST3410Signer ecgost3410 = new ECGOST3410Signer(); ecgost3410.init(true, param); BigInteger[] sig = ecgost3410.generateSignature(hashmessage); ecgost3410.init(false, pair.getPublic()); if (!ecgost3410.verifySignature(hashmessage, sig[0], sig[1])) { fail("signature fails"); } } /** * Test Sign & Verify with C parameters * see: http://www.ietf.org/internet-drafts/draft-popov-cryptopro-cpalgs-01.txt * gostR3410-2001-CryptoPro-C-ParamSet P.48 */ private void ecGOST3410_CParam() { SecureRandom random = new SecureRandom(); BigInteger mod_p = new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502619"); //p BigInteger mod_q = new BigInteger("70390085352083305199547718019018437840920882647164081035322601458352298396601"); ECCurve.Fp curve = new ECCurve.Fp( mod_p, // p new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502616"), // a new BigInteger("32858"), // b mod_q, ECConstants.ONE); ECDomainParameters params = new ECDomainParameters( curve, curve.createPoint( new BigInteger("0"), // x new BigInteger("29818893917731240733471273240314769927240550812383695689146495261604565990247")), // y mod_q); ECKeyPairGenerator pGen = new ECKeyPairGenerator(); ECKeyGenerationParameters genParam = new ECKeyGenerationParameters( params, random); pGen.init(genParam); AsymmetricCipherKeyPair pair = pGen.generateKeyPair(); ParametersWithRandom param = new ParametersWithRandom(pair.getPrivate(), random); ECGOST3410Signer ecgost3410 = new ECGOST3410Signer(); ecgost3410.init(true, param); BigInteger[] sig = ecgost3410.generateSignature(hashmessage); ecgost3410.init(false, pair.getPublic()); if (!ecgost3410.verifySignature(hashmessage, sig[0], sig[1])) { fail("signature fails"); } } public String getName() { return "ECGOST3410"; } public void performTest() { ecGOST3410_TEST(); ecGOST3410_TestParam(); ecGOST3410_AParam(); ecGOST3410_BParam(); ecGOST3410_CParam(); } public static void main( String[] args) { runTest(new ECGOST3410Test()); } }




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