package org.bouncycastle.jce.provider.test;
import java.math.BigInteger;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.Security;
import java.security.Signature;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
import org.bouncycastle.jce.interfaces.GOST3410PrivateKey;
import org.bouncycastle.jce.interfaces.GOST3410PublicKey;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.jce.spec.ECParameterSpec;
import org.bouncycastle.jce.spec.ECPrivateKeySpec;
import org.bouncycastle.jce.spec.ECPublicKeySpec;
import org.bouncycastle.jce.spec.GOST3410ParameterSpec;
import org.bouncycastle.math.ec.ECCurve;
import org.bouncycastle.math.ec.ECFieldElement;
import org.bouncycastle.math.ec.ECPoint;
import org.bouncycastle.util.BigIntegers;
import org.bouncycastle.util.test.FixedSecureRandom;
import org.bouncycastle.util.test.SimpleTest;
public class GOST3410Test
extends SimpleTest
{
private void ecGOST3410Test()
throws Exception
{
BigInteger r = new BigInteger("29700980915817952874371204983938256990422752107994319651632687982059210933395");
BigInteger s = new BigInteger("46959264877825372965922731380059061821746083849389763294914877353246631700866");
byte[] kData = BigIntegers.asUnsignedByteArray(new BigInteger("53854137677348463731403841147996619241504003434302020712960838528893196233395"));
SecureRandom k = new FixedSecureRandom(kData);
BigInteger mod_p = new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564821041"); //p
ECCurve curve = new ECCurve.Fp(
mod_p, // p
new BigInteger("7"), // a
new BigInteger("43308876546767276905765904595650931995942111794451039583252968842033849580414")); // b
ECParameterSpec spec = new ECParameterSpec(
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
ECPrivateKeySpec priKey = new ECPrivateKeySpec(
new BigInteger("55441196065363246126355624130324183196576709222340016572108097750006097525544"), // d
spec);
ECPublicKeySpec pubKey = new ECPublicKeySpec(
new ECPoint.Fp(curve,
new ECFieldElement.Fp(mod_p, new BigInteger("57520216126176808443631405023338071176630104906313632182896741342206604859403")), // x
new ECFieldElement.Fp(mod_p, new BigInteger("17614944419213781543809391949654080031942662045363639260709847859438286763994"))), // y
spec);
Signature sgr = Signature.getInstance("ECGOST3410", "BC");
KeyFactory f = KeyFactory.getInstance("ECGOST3410", "BC");
PrivateKey sKey = f.generatePrivate(priKey);
PublicKey vKey = f.generatePublic(pubKey);
sgr.initSign(sKey, k);
byte[] message = new byte[] { (byte)'a', (byte)'b', (byte)'c' };
sgr.update(message);
byte[] sigBytes = sgr.sign();
sgr.initVerify(vKey);
sgr.update(message);
if (!sgr.verify(sigBytes))
{
fail("ECGOST3410 verification failed");
}
BigInteger[] sig = decode(sigBytes);
if (!r.equals(sig[0]))
{
fail(
": r component wrong." + System.getProperty("line.separator")
+ " expecting: " + r + System.getProperty("line.separator")
+ " got : " + sig[0]);
}
if (!s.equals(sig[1]))
{
fail(
": s component wrong." + System.getProperty("line.separator")
+ " expecting: " + s + System.getProperty("line.separator")
+ " got : " + sig[1]);
}
}
private void generationTest()
throws Exception
{
Signature s = Signature.getInstance("GOST3410", "BC");
KeyPairGenerator g = KeyPairGenerator.getInstance("GOST3410", "BC");
byte[] data = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
GOST3410ParameterSpec gost3410P = new GOST3410ParameterSpec(CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_A.getId());
g.initialize(gost3410P, new SecureRandom());
KeyPair p = g.generateKeyPair();
PrivateKey sKey = p.getPrivate();
PublicKey vKey = p.getPublic();
s.initSign(sKey);
s.update(data);
byte[] sigBytes = s.sign();
s = Signature.getInstance("GOST3410", "BC");
s.initVerify(vKey);
s.update(data);
if (!s.verify(sigBytes))
{
fail("GOST3410 verification failed");
}
//
// default iniialisation test
//
s = Signature.getInstance("GOST3410", "BC");
g = KeyPairGenerator.getInstance("GOST3410", "BC");
p = g.generateKeyPair();
sKey = p.getPrivate();
vKey = p.getPublic();
s.initSign(sKey);
s.update(data);
sigBytes = s.sign();
s = Signature.getInstance("GOST3410", "BC");
s.initVerify(vKey);
s.update(data);
if (!s.verify(sigBytes))
{
fail("GOST3410 verification failed");
}
//
// encoded test
//
KeyFactory f = KeyFactory.getInstance("GOST3410", "BC");
X509EncodedKeySpec x509s = new X509EncodedKeySpec(vKey.getEncoded());
GOST3410PublicKey k1 = (GOST3410PublicKey)f.generatePublic(x509s);
if (!k1.getY().equals(((GOST3410PublicKey)vKey).getY()))
{
fail("public number not decoded properly");
}
PKCS8EncodedKeySpec pkcs8 = new PKCS8EncodedKeySpec(sKey.getEncoded());
GOST3410PrivateKey k2 = (GOST3410PrivateKey)f.generatePrivate(pkcs8);
if (!k2.getX().equals(((GOST3410PrivateKey)sKey).getX()))
{
fail("private number not decoded properly");
}
//
// ECGOST3410 generation test
//
s = Signature.getInstance("ECGOST3410", "BC");
g = KeyPairGenerator.getInstance("ECGOST3410", "BC");
BigInteger mod_p = new BigInteger("57896044618658097711785492504343953926634992332820282019728792003956564821041"); //p
ECCurve curve = new ECCurve.Fp(
mod_p, // p
new BigInteger("7"), // a
new BigInteger("43308876546767276905765904595650931995942111794451039583252968842033849580414")); // b
ECParameterSpec ecSpec = new ECParameterSpec(
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
g.initialize(ecSpec, new SecureRandom());
p = g.generateKeyPair();
sKey = p.getPrivate();
vKey = p.getPublic();
s.initSign(sKey);
s.update(data);
sigBytes = s.sign();
s = Signature.getInstance("ECGOST3410", "BC");
s.initVerify(vKey);
s.update(data);
if (!s.verify(sigBytes))
{
fail("ECGOST3410 verification failed");
}
}
private void parametersTest()
throws Exception
{
// AlgorithmParameterGenerator a = AlgorithmParameterGenerator.getInstance("GOST3410", "BC");
// a.init(512, random);
// AlgorithmParameters params = a.generateParameters();
//
// byte[] encodeParams = params.getEncoded();
//
// AlgorithmParameters a2 = AlgorithmParameters.getInstance("GOST3410", "BC");
// a2.init(encodeParams);
//
// // a and a2 should be equivalent!
// byte[] encodeParams_2 = a2.getEncoded();
//
// if (!arrayEquals(encodeParams, encodeParams_2))
// {
// fail("encode/decode parameters failed");
// }
GOST3410ParameterSpec gost3410P = new GOST3410ParameterSpec(CryptoProObjectIdentifiers.gostR3410_94_CryptoPro_B.getId());
KeyPairGenerator g = KeyPairGenerator.getInstance("GOST3410", "BC");
g.initialize(gost3410P, new SecureRandom());
KeyPair p = g.generateKeyPair();
PrivateKey sKey = p.getPrivate();
PublicKey vKey = p.getPublic();
Signature s = Signature.getInstance("GOST3410", "BC");
byte[] data = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
s.initSign(sKey);
s.update(data);
byte[] sigBytes = s.sign();
s = Signature.getInstance("GOST3410", "BC");
s.initVerify(vKey);
s.update(data);
if (!s.verify(sigBytes))
{
fail("GOST3410 verification failed");
}
}
private BigInteger[] decode(
byte[] encoding)
{
byte[] r = new byte[32];
byte[] s = new byte[32];
System.arraycopy(encoding, 0, s, 0, 32);
System.arraycopy(encoding, 32, r, 0, 32);
BigInteger[] sig = new BigInteger[2];
sig[0] = new BigInteger(1, r);
sig[1] = new BigInteger(1, s);
return sig;
}
public String getName()
{
return "GOST3410/ECGOST3410";
}
public void performTest()
throws Exception
{
ecGOST3410Test();
generationTest();
parametersTest();
}
public static void main(
String[] args)
{
Security.addProvider(new BouncyCastleProvider());
runTest(new GOST3410Test());
}
}