package org.bouncycastle.crypto.test;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.test.FixedSecureRandom;
import org.bouncycastle.util.test.SimpleTest;
import org.bouncycastle.math.ec.ECCurve;
import org.bouncycastle.math.ec.ECPoint;
import org.bouncycastle.math.ec.ECFieldElement;
import org.bouncycastle.crypto.params.*;
import org.bouncycastle.crypto.signers.ECGOST3410Signer;
import org.bouncycastle.crypto.generators.ECKeyPairGenerator;
import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
import org.bouncycastle.crypto.digests.GOST3411Digest;
import java.math.BigInteger;
import java.security.SecureRandom;
/**
* 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<br>
*/
BigInteger r = new BigInteger("29700980915817952874371204983938256990422752107994319651632687982059210933395");
BigInteger s = new BigInteger("574973400270084654178925310019147038455227042649098563933718999175515839552");
byte[] kData = new BigInteger("53854137677348463731403841147996619241504003434302020712960838528893196233395").toByteArray();
SecureRandom k = new FixedSecureRandom(kData);
private void ecGOST3410_TEST()
{
BigInteger mod_p = new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564821041"); //p
ECCurve.Fp curve = new ECCurve.Fp(
mod_p, // p
new BigInteger("7"), // a
new BigInteger("43308876546767276905765904595650931995942111794451039583252968842033849580414")); // b
ECDomainParameters params = new ECDomainParameters(
curve,
new ECPoint.Fp(curve,
new ECFieldElement.Fp(mod_p,new BigInteger("2")), // x
new ECFieldElement.Fp(mod_p,new BigInteger("4018974056539037503335449422937059775635739389905545080690979365213431566280"))), // y
new BigInteger("57896044618658097711785492504343953927082934583725450622380973592137631069619")); // 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(
new ECPoint.Fp(curve,
new ECFieldElement.Fp(mod_p, new BigInteger("57520216126176808443631405023338071176630104906313632182896741342206604859403")), // x
new ECFieldElement.Fp(mod_p, 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
ECCurve.Fp curve = new ECCurve.Fp(
mod_p, // p
new BigInteger("7"), // a
new BigInteger("43308876546767276905765904595650931995942111794451039583252968842033849580414")); // b
ECDomainParameters params = new ECDomainParameters(
curve,
new ECPoint.Fp(curve,
new ECFieldElement.Fp(mod_p,new BigInteger("2")), // x
new ECFieldElement.Fp(mod_p,new BigInteger("4018974056539037503335449422937059775635739389905545080690979365213431566280"))), // y
new BigInteger("57896044618658097711785492504343953927082934583725450622380973592137631069619")); // 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
ECCurve.Fp curve = new ECCurve.Fp(
mod_p, // p
new BigInteger("115792089237316195423570985008687907853269984665640564039457584007913129639316"), // a
new BigInteger("166")); // b
ECDomainParameters params = new ECDomainParameters(
curve,
new ECPoint.Fp(curve,
new ECFieldElement.Fp(mod_p,new BigInteger("1")), // x
new ECFieldElement.Fp(mod_p,new BigInteger("64033881142927202683649881450433473985931760268884941288852745803908878638612"))), // y
new BigInteger("115792089237316195423570985008687907853073762908499243225378155805079068850323")); // 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
ECCurve.Fp curve = new ECCurve.Fp(
mod_p, // p
new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564823190"), // a
new BigInteger("28091019353058090096996979000309560759124368558014865957655842872397301267595")); // b
ECDomainParameters params = new ECDomainParameters(
curve,
new ECPoint.Fp(curve,
new ECFieldElement.Fp(mod_p,new BigInteger("1")), // x
new ECFieldElement.Fp(mod_p,new BigInteger("28792665814854611296992347458380284135028636778229113005756334730996303888124"))), // y
new BigInteger("57896044618658097711785492504343953927102133160255826820068844496087732066703")); // 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
ECCurve.Fp curve = new ECCurve.Fp(
mod_p, // p
new BigInteger("70390085352083305199547718019018437841079516630045180471284346843705633502616"), // a
new BigInteger("32858")); // b
ECDomainParameters params = new ECDomainParameters(
curve,
new ECPoint.Fp(curve,
new ECFieldElement.Fp(mod_p,new BigInteger("0")), // x
new ECFieldElement.Fp(mod_p,new BigInteger("29818893917731240733471273240314769927240550812383695689146495261604565990247"))), // y
new BigInteger("70390085352083305199547718019018437840920882647164081035322601458352298396601")); // 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());
}
}