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package org.bouncycastle.crypto.test;
import java.math.BigInteger;
import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
import org.bouncycastle.crypto.InvalidCipherTextException;
import org.bouncycastle.crypto.engines.SM2Engine;
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.math.ec.ECConstants;
import org.bouncycastle.math.ec.ECCurve;
import org.bouncycastle.math.ec.ECPoint;
import org.bouncycastle.util.Arrays;
import org.bouncycastle.util.Strings;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.test.SimpleTest;
import org.bouncycastle.util.test.TestRandomBigInteger;
public class SM2EngineTest
extends SimpleTest
{
public String getName()
{
return "SM2Engine";
}
private void doEngineTestFp()
throws Exception
{
BigInteger SM2_ECC_P = new BigInteger("8542D69E4C044F18E8B92435BF6FF7DE457283915C45517D722EDB8B08F1DFC3", 16);
BigInteger SM2_ECC_A = new BigInteger("787968B4FA32C3FD2417842E73BBFEFF2F3C848B6831D7E0EC65228B3937E498", 16);
BigInteger SM2_ECC_B = new BigInteger("63E4C6D3B23B0C849CF84241484BFE48F61D59A5B16BA06E6E12D1DA27C5249A", 16);
BigInteger SM2_ECC_N = new BigInteger("8542D69E4C044F18E8B92435BF6FF7DD297720630485628D5AE74EE7C32E79B7", 16);
BigInteger SM2_ECC_H = ECConstants.ONE;
BigInteger SM2_ECC_GX = new BigInteger("421DEBD61B62EAB6746434EBC3CC315E32220B3BADD50BDC4C4E6C147FEDD43D", 16);
BigInteger SM2_ECC_GY = new BigInteger("0680512BCBB42C07D47349D2153B70C4E5D7FDFCBFA36EA1A85841B9E46E09A2", 16);
ECCurve curve = new ECCurve.Fp(SM2_ECC_P, SM2_ECC_A, SM2_ECC_B, SM2_ECC_N, SM2_ECC_H);
ECPoint g = curve.createPoint(SM2_ECC_GX, SM2_ECC_GY);
ECDomainParameters domainParams = new ECDomainParameters(curve, g, SM2_ECC_N);
ECKeyPairGenerator keyPairGenerator = new ECKeyPairGenerator();
ECKeyGenerationParameters aKeyGenParams = new ECKeyGenerationParameters(domainParams, new TestRandomBigInteger("1649AB77A00637BD5E2EFE283FBF353534AA7F7CB89463F208DDBC2920BB0DA0", 16));
keyPairGenerator.init(aKeyGenParams);
AsymmetricCipherKeyPair aKp = keyPairGenerator.generateKeyPair();
ECPublicKeyParameters aPub = (ECPublicKeyParameters)aKp.getPublic();
ECPrivateKeyParameters aPriv = (ECPrivateKeyParameters)aKp.getPrivate();
SM2Engine sm2Engine = new SM2Engine();
byte[] m = Strings.toByteArray("encryption standard");
sm2Engine.init(true, new ParametersWithRandom(aPub, new TestRandomBigInteger("4C62EEFD6ECFC2B95B92FD6C3D9575148AFA17425546D49018E5388D49DD7B4F", 16)));
byte[] enc = sm2Engine.processBlock(m, 0, m.length);
isTrue("enc wrong", Arrays.areEqual(Hex.decode(
"04245C26 FB68B1DD DDB12C4B 6BF9F2B6 D5FE60A3 83B0D18D 1C4144AB F17F6252" +
"E776CB92 64C2A7E8 8E52B199 03FDC473 78F605E3 6811F5C0 7423A24B 84400F01" +
"B8650053 A89B41C4 18B0C3AA D00D886C 00286467 9C3D7360 C30156FA B7C80A02" +
"76712DA9 D8094A63 4B766D3A 285E0748 0653426D"), enc));
sm2Engine.init(false, aPriv);
byte[] dec = sm2Engine.processBlock(enc, 0, enc.length);
isTrue("dec wrong", Arrays.areEqual(m, dec));
enc[80] = (byte)(enc[80] + 1);
try
{
sm2Engine.processBlock(enc, 0, enc.length);
fail("no exception");
}
catch (InvalidCipherTextException e)
{
isTrue("wrong exception", "invalid cipher text".equals(e.getMessage()));
}
// long message
sm2Engine = new SM2Engine();
m = new byte[4097];
for (int i = 0; i != m.length; i++)
{
m[i] = (byte)i;
}
sm2Engine.init(true, new ParametersWithRandom(aPub, new TestRandomBigInteger("4C62EEFD6ECFC2B95B92FD6C3D9575148AFA17425546D49018E5388D49DD7B4F", 16)));
enc = sm2Engine.processBlock(m, 0, m.length);
sm2Engine.init(false, aPriv);
dec = sm2Engine.processBlock(enc, 0, enc.length);
isTrue("dec wrong", Arrays.areEqual(m, dec));
}
private void doEngineTestFpC1C3C2()
throws Exception
{
BigInteger SM2_ECC_P = new BigInteger("8542D69E4C044F18E8B92435BF6FF7DE457283915C45517D722EDB8B08F1DFC3", 16);
BigInteger SM2_ECC_A = new BigInteger("787968B4FA32C3FD2417842E73BBFEFF2F3C848B6831D7E0EC65228B3937E498", 16);
BigInteger SM2_ECC_B = new BigInteger("63E4C6D3B23B0C849CF84241484BFE48F61D59A5B16BA06E6E12D1DA27C5249A", 16);
BigInteger SM2_ECC_N = new BigInteger("8542D69E4C044F18E8B92435BF6FF7DD297720630485628D5AE74EE7C32E79B7", 16);
BigInteger SM2_ECC_H = ECConstants.ONE;
BigInteger SM2_ECC_GX = new BigInteger("421DEBD61B62EAB6746434EBC3CC315E32220B3BADD50BDC4C4E6C147FEDD43D", 16);
BigInteger SM2_ECC_GY = new BigInteger("0680512BCBB42C07D47349D2153B70C4E5D7FDFCBFA36EA1A85841B9E46E09A2", 16);
ECCurve curve = new ECCurve.Fp(SM2_ECC_P, SM2_ECC_A, SM2_ECC_B, SM2_ECC_N, SM2_ECC_H);
ECPoint g = curve.createPoint(SM2_ECC_GX, SM2_ECC_GY);
ECDomainParameters domainParams = new ECDomainParameters(curve, g, SM2_ECC_N);
ECKeyPairGenerator keyPairGenerator = new ECKeyPairGenerator();
ECKeyGenerationParameters aKeyGenParams = new ECKeyGenerationParameters(domainParams, new TestRandomBigInteger("1649AB77A00637BD5E2EFE283FBF353534AA7F7CB89463F208DDBC2920BB0DA0", 16));
keyPairGenerator.init(aKeyGenParams);
AsymmetricCipherKeyPair aKp = keyPairGenerator.generateKeyPair();
ECPublicKeyParameters aPub = (ECPublicKeyParameters)aKp.getPublic();
ECPrivateKeyParameters aPriv = (ECPrivateKeyParameters)aKp.getPrivate();
SM2Engine sm2Engine = new SM2Engine(SM2Engine.Mode.C1C3C2);
byte[] m = Strings.toByteArray("encryption standard");
sm2Engine.init(true, new ParametersWithRandom(aPub, new TestRandomBigInteger("4C62EEFD6ECFC2B95B92FD6C3D9575148AFA17425546D49018E5388D49DD7B4F", 16)));
byte[] enc = sm2Engine.processBlock(m, 0, m.length);
isTrue("enc wrong", Arrays.areEqual(Hex.decode(
"04245C26 FB68B1DD DDB12C4B 6BF9F2B6 D5FE60A3 83B0D18D 1C4144AB F17F6252" +
"E776CB92 64C2A7E8 8E52B199 03FDC473 78F605E3 6811F5C0 7423A24B 84400F01" +
"B8 9C3D7360 C30156FA B7C80A02" +
"76712DA9 D8094A63 4B766D3A 285E0748 0653426D 650053 A89B41C4 18B0C3AA D00D886C 00286467"), enc));
sm2Engine.init(false, aPriv);
byte[] dec = sm2Engine.processBlock(enc, 0, enc.length);
isTrue("dec wrong", Arrays.areEqual(m, dec));
enc[80] = (byte)(enc[80] + 1);
try
{
sm2Engine.processBlock(enc, 0, enc.length);
fail("no exception");
}
catch (InvalidCipherTextException e)
{
isTrue("wrong exception", "invalid cipher text".equals(e.getMessage()));
}
// long message
sm2Engine = new SM2Engine(SM2Engine.Mode.C1C3C2);
m = new byte[4097];
for (int i = 0; i != m.length; i++)
{
m[i] = (byte)i;
}
sm2Engine.init(true, new ParametersWithRandom(aPub, new TestRandomBigInteger("4C62EEFD6ECFC2B95B92FD6C3D9575148AFA17425546D49018E5388D49DD7B4F", 16)));
enc = sm2Engine.processBlock(m, 0, m.length);
sm2Engine.init(false, aPriv);
dec = sm2Engine.processBlock(enc, 0, enc.length);
isTrue("dec wrong", Arrays.areEqual(m, dec));
}
private void doEngineTestF2m()
throws Exception
{
BigInteger SM2_ECC_A = new BigInteger("00", 16);
BigInteger SM2_ECC_B = new BigInteger("E78BCD09746C202378A7E72B12BCE00266B9627ECB0B5A25367AD1AD4CC6242B", 16);
BigInteger SM2_ECC_N = new BigInteger("7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFBC972CF7E6B6F900945B3C6A0CF6161D", 16);
BigInteger SM2_ECC_H = BigInteger.valueOf(4);
BigInteger SM2_ECC_GX = new BigInteger("00CDB9CA7F1E6B0441F658343F4B10297C0EF9B6491082400A62E7A7485735FADD", 16);
BigInteger SM2_ECC_GY = new BigInteger("013DE74DA65951C4D76DC89220D5F7777A611B1C38BAE260B175951DC8060C2B3E", 16);
ECCurve curve = new ECCurve.F2m(257, 12, SM2_ECC_A, SM2_ECC_B, SM2_ECC_N, SM2_ECC_H);
ECPoint g = curve.createPoint(SM2_ECC_GX, SM2_ECC_GY);
ECDomainParameters domainParams = new ECDomainParameters(curve, g, SM2_ECC_N, SM2_ECC_H);
ECKeyPairGenerator keyPairGenerator = new ECKeyPairGenerator();
ECKeyGenerationParameters aKeyGenParams = new ECKeyGenerationParameters(domainParams, new TestRandomBigInteger("56A270D17377AA9A367CFA82E46FA5267713A9B91101D0777B07FCE018C757EB", 16));
keyPairGenerator.init(aKeyGenParams);
AsymmetricCipherKeyPair aKp = keyPairGenerator.generateKeyPair();
ECPublicKeyParameters aPub = (ECPublicKeyParameters)aKp.getPublic();
ECPrivateKeyParameters aPriv = (ECPrivateKeyParameters)aKp.getPrivate();
SM2Engine sm2Engine = new SM2Engine();
byte[] m = Strings.toByteArray("encryption standard");
sm2Engine.init(true, new ParametersWithRandom(aPub, new TestRandomBigInteger("6D3B497153E3E92524E5C122682DBDC8705062E20B917A5F8FCDB8EE4C66663D", 16)));
byte[] enc = sm2Engine.processBlock(m, 0, m.length);
isTrue("f2m enc wrong", Arrays.areEqual(Hex.decode(
"04019D23 6DDB3050 09AD52C5 1BB93270 9BD534D4 76FBB7B0 DF9542A8 A4D890A3" +
"F2E100B2 3B938DC0 A94D1DF8 F42CF45D 2D6601BF 638C3D7D E75A29F0 2AFB7E45" +
"E91771FD 55AC6213 C2A8A040 E4CAB5B2 6A9CFCDA 737373A4 8625D375 8FA37B3E" +
"AB80E9CF CABA665E 3199EA15 A1FA8189 D96F5791 25E4"), enc));
sm2Engine.init(false, aPriv);
byte[] dec = sm2Engine.processBlock(enc, 0, enc.length);
isTrue("f2m dec wrong", Arrays.areEqual(m, dec));
}
public void performTest()
throws Exception
{
doEngineTestFp();
doEngineTestF2m();
doEngineTestFpC1C3C2();
}
public static void main(String[] args)
{
runTest(new SM2EngineTest());
}
}