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Diffstat (limited to 'libraries/spongycastle/prov/src/test/java/org/spongycastle/jce/provider/test/ElGamalTest.java')
-rw-r--r--libraries/spongycastle/prov/src/test/java/org/spongycastle/jce/provider/test/ElGamalTest.java497
1 files changed, 0 insertions, 497 deletions
diff --git a/libraries/spongycastle/prov/src/test/java/org/spongycastle/jce/provider/test/ElGamalTest.java b/libraries/spongycastle/prov/src/test/java/org/spongycastle/jce/provider/test/ElGamalTest.java
deleted file mode 100644
index 5fb8a290c..000000000
--- a/libraries/spongycastle/prov/src/test/java/org/spongycastle/jce/provider/test/ElGamalTest.java
+++ /dev/null
@@ -1,497 +0,0 @@
-package org.spongycastle.jce.provider.test;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.math.BigInteger;
-import java.security.AlgorithmParameterGenerator;
-import java.security.AlgorithmParameters;
-import java.security.KeyFactory;
-import java.security.KeyPair;
-import java.security.KeyPairGenerator;
-import java.security.SecureRandom;
-import java.security.Security;
-import java.security.spec.PKCS8EncodedKeySpec;
-import java.security.spec.X509EncodedKeySpec;
-
-import javax.crypto.Cipher;
-import javax.crypto.interfaces.DHPrivateKey;
-import javax.crypto.interfaces.DHPublicKey;
-import javax.crypto.spec.DHParameterSpec;
-
-import org.spongycastle.jcajce.provider.config.ConfigurableProvider;
-import org.spongycastle.jce.interfaces.PKCS12BagAttributeCarrier;
-import org.spongycastle.jce.provider.BouncyCastleProvider;
-import org.spongycastle.util.encoders.Hex;
-import org.spongycastle.util.test.SimpleTest;
-
-public class ElGamalTest
- extends SimpleTest
-{
- private BigInteger g512 = new BigInteger("153d5d6172adb43045b68ae8e1de1070b6137005686d29d3d73a7749199681ee5b212c9b96bfdcfa5b20cd5e3fd2044895d609cf9b410b7a0f12ca1cb9a428cc", 16);
- private BigInteger p512 = new BigInteger("9494fec095f3b85ee286542b3836fc81a5dd0a0349b4c239dd38744d488cf8e31db8bcb7d33b41abb9e5a33cca9144b1cef332c94bf0573bf047a3aca98cdf3b", 16);
-
- private BigInteger g768 = new BigInteger("7c240073c1316c621df461b71ebb0cdcc90a6e5527e5e126633d131f87461c4dc4afc60c2cb0f053b6758871489a69613e2a8b4c8acde23954c08c81cbd36132cfd64d69e4ed9f8e51ed6e516297206672d5c0a69135df0a5dcf010d289a9ca1", 16);
- private BigInteger p768 = new BigInteger("8c9dd223debed1b80103b8b309715be009d48860ed5ae9b9d5d8159508efd802e3ad4501a7f7e1cfec78844489148cd72da24b21eddd01aa624291c48393e277cfc529e37075eccef957f3616f962d15b44aeab4039d01b817fde9eaa12fd73f", 16);
-
- private BigInteger g1024 = new BigInteger("1db17639cdf96bc4eabba19454f0b7e5bd4e14862889a725c96eb61048dcd676ceb303d586e30f060dbafd8a571a39c4d823982117da5cc4e0f89c77388b7a08896362429b94a18a327604eb7ff227bffbc83459ade299e57b5f77b50fb045250934938efa145511166e3197373e1b5b1e52de713eb49792bedde722c6717abf", 16);
- private BigInteger p1024 = new BigInteger("a00e283b3c624e5b2b4d9fbc2653b5185d99499b00fd1bf244c6f0bb817b4d1c451b2958d62a0f8a38caef059fb5ecd25d75ed9af403f5b5bdab97a642902f824e3c13789fed95fa106ddfe0ff4a707c85e2eb77d49e68f2808bcea18ce128b178cd287c6bc00efa9a1ad2a673fe0dceace53166f75b81d6709d5f8af7c66bb7", 16);
-
- public String getName()
- {
- return "ElGamal";
- }
-
- private void testGP(
- int size,
- int privateValueSize,
- BigInteger g,
- BigInteger p)
- throws Exception
- {
- DHParameterSpec elParams = new DHParameterSpec(p, g, privateValueSize);
- KeyPairGenerator keyGen = KeyPairGenerator.getInstance("ElGamal", "SC");
- byte[] in = "This is a test".getBytes();
-
- keyGen.initialize(elParams);
-
- KeyPair keyPair = keyGen.generateKeyPair();
- SecureRandom rand = new SecureRandom();
-
- checkKeySize(privateValueSize, keyPair);
-
- Cipher cipher = Cipher.getInstance("ElGamal", "SC");
-
- cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
-
- if (cipher.getOutputSize(in.length) != (size / 8) * 2)
- {
- fail("getOutputSize wrong on encryption");
- }
-
- byte[] out = cipher.doFinal(in);
-
- cipher.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
-
- if (cipher.getOutputSize(out.length) != (size / 8) - 1)
- {
- fail("getOutputSize wrong on decryption");
- }
-
- //
- // No Padding - maximum length
- //
- byte[] modBytes = ((DHPublicKey)keyPair.getPublic()).getParams().getP().toByteArray();
- byte[] maxInput = new byte[modBytes.length - 1];
-
- maxInput[0] |= 0x7f;
-
- cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
-
- out = cipher.doFinal(maxInput);
-
- cipher.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
-
- out = cipher.doFinal(out);
-
- if (!areEqual(out, maxInput))
- {
- fail("NoPadding test failed on decrypt expected " + new String(Hex.encode(maxInput)) + " got " + new String(Hex.encode(out)));
- }
-
- //
- // encrypt/decrypt
- //
-
- Cipher c1 = Cipher.getInstance("ElGamal", "SC");
- Cipher c2 = Cipher.getInstance("ElGamal", "SC");
-
- c1.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
-
- byte[] out1 = c1.doFinal(in);
-
- c2.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
-
- byte[] out2 = c2.doFinal(out1);
-
- if (!areEqual(in, out2))
- {
- fail(size + " encrypt test failed");
- }
-
- //
- // encrypt/decrypt with update
- //
- int outLen = c1.update(in, 0, 2, out1, 0);
-
- outLen += c1.doFinal(in, 2, in.length - 2, out1, outLen);
-
- outLen = c2.update(out1, 0, 2, out2, 0);
-
- outLen += c2.doFinal(out1, 2, out1.length - 2, out2, outLen);
-
- if (!areEqual(in, out2))
- {
- fail(size + " encrypt with update test failed");
- }
-
- //
- // public key encoding test
- //
- byte[] pubEnc = keyPair.getPublic().getEncoded();
- KeyFactory keyFac = KeyFactory.getInstance("ElGamal", "SC");
- X509EncodedKeySpec pubX509 = new X509EncodedKeySpec(pubEnc);
- DHPublicKey pubKey = (DHPublicKey)keyFac.generatePublic(pubX509);
- DHParameterSpec spec = pubKey.getParams();
-
- if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP()))
- {
- fail(size + " bit public key encoding/decoding test failed on parameters");
- }
-
- if (!((DHPublicKey)keyPair.getPublic()).getY().equals(pubKey.getY()))
- {
- fail(size + " bit public key encoding/decoding test failed on y value");
- }
-
- //
- // public key serialisation test
- //
- pubKey = (DHPublicKey)serializeDeserialize(keyPair.getPublic());
- spec = pubKey.getParams();
-
- if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP()))
- {
- fail(size + " bit public key serialisation test failed on parameters");
- }
-
- if (!((DHPublicKey)keyPair.getPublic()).getY().equals(pubKey.getY()))
- {
- fail(size + " bit public key serialisation test failed on y value");
- }
-
- if (!keyPair.getPublic().equals(pubKey))
- {
- fail("equals test failed");
- }
-
- if (keyPair.getPublic().hashCode() != pubKey.hashCode())
- {
- fail("hashCode test failed");
- }
-
- //
- // private key encoding test
- //
- byte[] privEnc = keyPair.getPrivate().getEncoded();
- PKCS8EncodedKeySpec privPKCS8 = new PKCS8EncodedKeySpec(privEnc);
- DHPrivateKey privKey = (DHPrivateKey)keyFac.generatePrivate(privPKCS8);
-
- spec = privKey.getParams();
-
- if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP()))
- {
- fail(size + " bit private key encoding/decoding test failed on parameters");
- }
-
- if (!((DHPrivateKey)keyPair.getPrivate()).getX().equals(privKey.getX()))
- {
- fail(size + " bit private key encoding/decoding test failed on y value");
- }
-
- //
- // private key serialisation test
- //
- privKey = (DHPrivateKey)serializeDeserialize(keyPair.getPrivate());
- spec = privKey.getParams();
-
- if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP()))
- {
- fail(size + " bit private key serialisation test failed on parameters");
- }
-
- if (!((DHPrivateKey)keyPair.getPrivate()).getX().equals(privKey.getX()))
- {
- fail(size + " bit private key serialisation test failed on y value");
- }
-
- if (!keyPair.getPrivate().equals(privKey))
- {
- fail("equals test failed");
- }
-
- if (keyPair.getPrivate().hashCode() != privKey.hashCode())
- {
- fail("hashCode test failed");
- }
-
- if (!(privKey instanceof PKCS12BagAttributeCarrier))
- {
- fail("private key not implementing PKCS12 attribute carrier");
- }
- }
-
- private Object serializeDeserialize(Object o)
- throws Exception
- {
- ByteArrayOutputStream bOut = new ByteArrayOutputStream();
- ObjectOutputStream oOut = new ObjectOutputStream(bOut);
-
- oOut.writeObject(o);
- oOut.close();
-
- ObjectInputStream oIn = new ObjectInputStream(new ByteArrayInputStream(bOut.toByteArray()));
-
- return oIn.readObject();
- }
-
- private void checkKeySize(int privateValueSize, KeyPair aKeyPair)
- {
- if (privateValueSize != 0)
- {
- DHPrivateKey key = (DHPrivateKey)aKeyPair.getPrivate();
-
- if (key.getX().bitLength() != privateValueSize)
- {
- fail("limited key check failed for key size " + privateValueSize);
- }
- }
- }
-
- private void testRandom(
- int size)
- throws Exception
- {
- AlgorithmParameterGenerator a = AlgorithmParameterGenerator.getInstance("ElGamal", "SC");
- a.init(size, new SecureRandom());
- AlgorithmParameters params = a.generateParameters();
-
- byte[] encodeParams = params.getEncoded();
-
- AlgorithmParameters a2 = AlgorithmParameters.getInstance("ElGamal", "SC");
- a2.init(encodeParams);
-
- // a and a2 should be equivalent!
- byte[] encodeParams_2 = a2.getEncoded();
-
- if (!areEqual(encodeParams, encodeParams_2))
- {
- fail(this.getName() + ": encode/decode parameters failed");
- }
-
- DHParameterSpec elP = (DHParameterSpec)params.getParameterSpec(DHParameterSpec.class);
-
- testGP(size, 0, elP.getG(), elP.getP());
- }
-
- private void testDefault(
- int privateValueSize,
- BigInteger g,
- BigInteger p)
- throws Exception
- {
- DHParameterSpec elParams = new DHParameterSpec(p, g, privateValueSize);
- int size = p.bitLength();
-
- new BouncyCastleProvider().setParameter(ConfigurableProvider.DH_DEFAULT_PARAMS, elParams);
-
- KeyPairGenerator keyGen = KeyPairGenerator.getInstance("ElGamal", "SC");
- byte[] in = "This is a test".getBytes();
-
- keyGen.initialize(p.bitLength());
-
- KeyPair keyPair = keyGen.generateKeyPair();
-
- new BouncyCastleProvider().setParameter(ConfigurableProvider.DH_DEFAULT_PARAMS, elParams);
-
- SecureRandom rand = new SecureRandom();
-
- checkKeySize(privateValueSize, keyPair);
-
- Cipher cipher = Cipher.getInstance("ElGamal", "SC");
-
- cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
-
- if (cipher.getOutputSize(in.length) != (size / 8) * 2)
- {
- fail("getOutputSize wrong on encryption");
- }
-
- byte[] out = cipher.doFinal(in);
-
- cipher.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
-
- if (cipher.getOutputSize(out.length) != (size / 8) - 1)
- {
- fail("getOutputSize wrong on decryption");
- }
-
- //
- // No Padding - maximum length
- //
- byte[] modBytes = ((DHPublicKey)keyPair.getPublic()).getParams().getP().toByteArray();
- byte[] maxInput = new byte[modBytes.length - 1];
-
- maxInput[0] |= 0x7f;
-
- cipher.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
-
- out = cipher.doFinal(maxInput);
-
- cipher.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
-
- out = cipher.doFinal(out);
-
- if (!areEqual(out, maxInput))
- {
- fail("NoPadding test failed on decrypt expected " + new String(Hex.encode(maxInput)) + " got " + new String(Hex.encode(out)));
- }
-
- //
- // encrypt/decrypt
- //
-
- Cipher c1 = Cipher.getInstance("ElGamal", "SC");
- Cipher c2 = Cipher.getInstance("ElGamal", "SC");
-
- c1.init(Cipher.ENCRYPT_MODE, keyPair.getPublic(), rand);
-
- byte[] out1 = c1.doFinal(in);
-
- c2.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
-
- byte[] out2 = c2.doFinal(out1);
-
- if (!areEqual(in, out2))
- {
- fail(size + " encrypt test failed");
- }
-
- //
- // encrypt/decrypt with update
- //
- int outLen = c1.update(in, 0, 2, out1, 0);
-
- outLen += c1.doFinal(in, 2, in.length - 2, out1, outLen);
-
- outLen = c2.update(out1, 0, 2, out2, 0);
-
- outLen += c2.doFinal(out1, 2, out1.length - 2, out2, outLen);
-
- if (!areEqual(in, out2))
- {
- fail(size + " encrypt with update test failed");
- }
-
- //
- // public key encoding test
- //
- byte[] pubEnc = keyPair.getPublic().getEncoded();
- KeyFactory keyFac = KeyFactory.getInstance("ElGamal", "SC");
- X509EncodedKeySpec pubX509 = new X509EncodedKeySpec(pubEnc);
- DHPublicKey pubKey = (DHPublicKey)keyFac.generatePublic(pubX509);
- DHParameterSpec spec = pubKey.getParams();
-
- if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP()))
- {
- fail(size + " bit public key encoding/decoding test failed on parameters");
- }
-
- if (!((DHPublicKey)keyPair.getPublic()).getY().equals(pubKey.getY()))
- {
- fail(size + " bit public key encoding/decoding test failed on y value");
- }
-
- //
- // public key serialisation test
- //
- ByteArrayOutputStream bOut = new ByteArrayOutputStream();
- ObjectOutputStream oOut = new ObjectOutputStream(bOut);
-
- oOut.writeObject(keyPair.getPublic());
-
- ByteArrayInputStream bIn = new ByteArrayInputStream(bOut.toByteArray());
- ObjectInputStream oIn = new ObjectInputStream(bIn);
-
- pubKey = (DHPublicKey)oIn.readObject();
- spec = pubKey.getParams();
-
- if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP()))
- {
- fail(size + " bit public key serialisation test failed on parameters");
- }
-
- if (!((DHPublicKey)keyPair.getPublic()).getY().equals(pubKey.getY()))
- {
- fail(size + " bit public key serialisation test failed on y value");
- }
-
- //
- // private key encoding test
- //
- byte[] privEnc = keyPair.getPrivate().getEncoded();
- PKCS8EncodedKeySpec privPKCS8 = new PKCS8EncodedKeySpec(privEnc);
- DHPrivateKey privKey = (DHPrivateKey)keyFac.generatePrivate(privPKCS8);
-
- spec = privKey.getParams();
-
- if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP()))
- {
- fail(size + " bit private key encoding/decoding test failed on parameters");
- }
-
- if (!((DHPrivateKey)keyPair.getPrivate()).getX().equals(privKey.getX()))
- {
- fail(size + " bit private key encoding/decoding test failed on y value");
- }
-
- //
- // private key serialisation test
- //
- bOut = new ByteArrayOutputStream();
- oOut = new ObjectOutputStream(bOut);
-
- oOut.writeObject(keyPair.getPrivate());
-
- bIn = new ByteArrayInputStream(bOut.toByteArray());
- oIn = new ObjectInputStream(bIn);
-
- privKey = (DHPrivateKey)oIn.readObject();
- spec = privKey.getParams();
-
- if (!spec.getG().equals(elParams.getG()) || !spec.getP().equals(elParams.getP()))
- {
- fail(size + " bit private key serialisation test failed on parameters");
- }
-
- if (!((DHPrivateKey)keyPair.getPrivate()).getX().equals(privKey.getX()))
- {
- fail(size + " bit private key serialisation test failed on y value");
- }
- }
-
- public void performTest()
- throws Exception
- {
- testDefault(64, g512, p512);
-
- testGP(512, 0, g512, p512);
- testGP(768, 0, g768, p768);
- testGP(1024, 0, g1024, p1024);
-
- testGP(512, 64, g512, p512);
- testGP(768, 128, g768, p768);
- testGP(1024, 256, g1024, p1024);
-
- testRandom(256);
- }
-
- public static void main(
- String[] args)
- {
- Security.addProvider(new BouncyCastleProvider());
-
- runTest(new ElGamalTest());
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 21:08:26 +0000