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Diffstat (limited to 'core/src/test/java/org/bouncycastle/crypto/ec/test/ECTransformationTest.java')
-rw-r--r--core/src/test/java/org/bouncycastle/crypto/ec/test/ECTransformationTest.java149
1 files changed, 0 insertions, 149 deletions
diff --git a/core/src/test/java/org/bouncycastle/crypto/ec/test/ECTransformationTest.java b/core/src/test/java/org/bouncycastle/crypto/ec/test/ECTransformationTest.java
deleted file mode 100644
index 96ada144..00000000
--- a/core/src/test/java/org/bouncycastle/crypto/ec/test/ECTransformationTest.java
+++ /dev/null
@@ -1,149 +0,0 @@
-package org.bouncycastle.crypto.ec.test;
-
-import java.math.BigInteger;
-import java.security.SecureRandom;
-
-import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
-import org.bouncycastle.crypto.ec.ECDecryptor;
-import org.bouncycastle.crypto.ec.ECElGamalDecryptor;
-import org.bouncycastle.crypto.ec.ECElGamalEncryptor;
-import org.bouncycastle.crypto.ec.ECEncryptor;
-import org.bouncycastle.crypto.ec.ECNewPublicKeyTransform;
-import org.bouncycastle.crypto.ec.ECNewRandomnessTransform;
-import org.bouncycastle.crypto.ec.ECPair;
-import org.bouncycastle.crypto.ec.ECPairTransform;
-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.encoders.Hex;
-import org.bouncycastle.util.test.SimpleTest;
-
-public class ECTransformationTest
- extends SimpleTest
-{
- public String getName()
- {
- return "ECTransformationTest";
- }
-
- public void performTest()
- throws Exception
- {
- BigInteger n = new BigInteger("6277101735386680763835789423176059013767194773182842284081");
-
- ECCurve.Fp curve = new ECCurve.Fp(
- new BigInteger("6277101735386680763835789423207666416083908700390324961279"), // q
- new BigInteger("fffffffffffffffffffffffffffffffefffffffffffffffc", 16), // a
- new BigInteger("64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1", 16), // b
- n, ECConstants.ONE);
-
- ECDomainParameters params = new ECDomainParameters(
- curve,
- curve.decodePoint(Hex.decode("03188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012")), // G
- n);
-
- ECPublicKeyParameters pubKey = new ECPublicKeyParameters(
- curve.decodePoint(Hex.decode("0262b12d60690cdcf330babab6e69763b471f994dd702d16a5")), // Q
- params);
-
- ECPrivateKeyParameters priKey = new ECPrivateKeyParameters(
- new BigInteger("651056770906015076056810763456358567190100156695615665659"), // d
- params);
-
-
- ParametersWithRandom pRandom = new ParametersWithRandom(pubKey, new SecureRandom());
-
- doTest(priKey, pRandom, BigInteger.valueOf(20));
-
- BigInteger rand = new BigInteger(pubKey.getParameters().getN().bitLength() - 1, new SecureRandom());
-
- doTest(priKey, pRandom, rand);
- doSameKeyTest(priKey, pRandom, rand);
- }
-
- private void doTest(ECPrivateKeyParameters priKey, ParametersWithRandom pRandom, BigInteger value)
- {
- ECPoint data = priKey.getParameters().getG().multiply(value);
-
- ECEncryptor encryptor = new ECElGamalEncryptor();
-
- encryptor.init(pRandom);
-
- ECPair pair = encryptor.encrypt(data);
-
- ECKeyPairGenerator ecGen = new ECKeyPairGenerator();
-
- ecGen.init(new ECKeyGenerationParameters(priKey.getParameters(), new SecureRandom()));
-
- AsymmetricCipherKeyPair reEncKP = ecGen.generateKeyPair();
-
- ECPairTransform ecr = new ECNewPublicKeyTransform();
-
- ecr.init(reEncKP.getPublic());
-
- ECPair srcPair = pair;
-
- // re-encrypt the message portion
- pair = ecr.transform(srcPair);
-
- ECDecryptor decryptor = new ECElGamalDecryptor();
-
- decryptor.init(priKey);
-
- // decrypt out the original private key
- ECPoint p = decryptor.decrypt(new ECPair(srcPair.getX(), pair.getY()));
-
- decryptor.init(reEncKP.getPrivate());
-
- // decrypt the fully transformed point.
- ECPoint result = decryptor.decrypt(new ECPair(pair.getX(), p));
-
- if (!data.equals(result))
- {
- fail("point pair failed to decrypt back to original");
- }
- }
-
- private void doSameKeyTest(ECPrivateKeyParameters priKey, ParametersWithRandom pRandom, BigInteger value)
- {
- ECPoint data = priKey.getParameters().getG().multiply(value);
-
- ECEncryptor encryptor = new ECElGamalEncryptor();
-
- encryptor.init(pRandom);
-
- ECPair pair = encryptor.encrypt(data);
-
- ECPairTransform ecr = new ECNewRandomnessTransform();
-
- ecr.init(pRandom);
-
- ECPair srcPair = pair;
-
- // re-encrypt the message portion
- pair = ecr.transform(srcPair);
-
- ECDecryptor decryptor = new ECElGamalDecryptor();
-
- decryptor.init(priKey);
-
- // decrypt the fully transformed point.
- ECPoint result = decryptor.decrypt(pair);
-
- if (!data.equals(result))
- {
- fail("point pair failed to decrypt back to original");
- }
- }
-
- public static void main(String[] args)
- {
- runTest(new ECTransformationTest());
- }
-}