diff options
Diffstat (limited to 'core/src/test/java/org/spongycastle/crypto/test/DHTest.java')
| -rw-r--r-- | core/src/test/java/org/spongycastle/crypto/test/DHTest.java | 414 |
1 files changed, 414 insertions, 0 deletions
diff --git a/core/src/test/java/org/spongycastle/crypto/test/DHTest.java b/core/src/test/java/org/spongycastle/crypto/test/DHTest.java new file mode 100644 index 00000000..ce78961f --- /dev/null +++ b/core/src/test/java/org/spongycastle/crypto/test/DHTest.java @@ -0,0 +1,414 @@ +package org.spongycastle.crypto.test; + +import java.math.BigInteger; +import java.security.SecureRandom; + +import org.spongycastle.crypto.AsymmetricCipherKeyPair; +import org.spongycastle.crypto.agreement.DHAgreement; +import org.spongycastle.crypto.agreement.DHBasicAgreement; +import org.spongycastle.crypto.generators.DHBasicKeyPairGenerator; +import org.spongycastle.crypto.generators.DHKeyPairGenerator; +import org.spongycastle.crypto.generators.DHParametersGenerator; +import org.spongycastle.crypto.params.DHKeyGenerationParameters; +import org.spongycastle.crypto.params.DHParameters; +import org.spongycastle.crypto.params.DHPrivateKeyParameters; +import org.spongycastle.crypto.params.DHPublicKeyParameters; +import org.spongycastle.crypto.params.ParametersWithRandom; +import org.spongycastle.util.test.SimpleTest; + +public class DHTest + 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 "DH"; + } + + private void testDH( + int size, + BigInteger g, + BigInteger p) + { + DHKeyPairGenerator kpGen = getDHKeyPairGenerator(g, p); + + // + // generate first pair + // + AsymmetricCipherKeyPair pair = kpGen.generateKeyPair(); + + DHPublicKeyParameters pu1 = (DHPublicKeyParameters)pair.getPublic(); + DHPrivateKeyParameters pv1 = (DHPrivateKeyParameters)pair.getPrivate(); + // + // generate second pair + // + pair = kpGen.generateKeyPair(); + + DHPublicKeyParameters pu2 = (DHPublicKeyParameters)pair.getPublic(); + DHPrivateKeyParameters pv2 = (DHPrivateKeyParameters)pair.getPrivate(); + + // + // two way + // + DHAgreement e1 = new DHAgreement(); + DHAgreement e2 = new DHAgreement(); + + e1.init(pv1); + e2.init(pv2); + + BigInteger m1 = e1.calculateMessage(); + BigInteger m2 = e2.calculateMessage(); + + BigInteger k1 = e1.calculateAgreement(pu2, m2); + BigInteger k2 = e2.calculateAgreement(pu1, m1); + + if (!k1.equals(k2)) + { + fail(size + " bit 2-way test failed"); + } + } + + private void testDHBasic( + int size, + int privateValueSize, + BigInteger g, + BigInteger p) + { + DHBasicKeyPairGenerator kpGen = getDHBasicKeyPairGenerator(g, p, privateValueSize); + + // + // generate first pair + // + AsymmetricCipherKeyPair pair = kpGen.generateKeyPair(); + + DHPublicKeyParameters pu1 = (DHPublicKeyParameters)pair.getPublic(); + DHPrivateKeyParameters pv1 = (DHPrivateKeyParameters)pair.getPrivate(); + + checkKeySize(privateValueSize, pv1); + // + // generate second pair + // + pair = kpGen.generateKeyPair(); + + DHPublicKeyParameters pu2 = (DHPublicKeyParameters)pair.getPublic(); + DHPrivateKeyParameters pv2 = (DHPrivateKeyParameters)pair.getPrivate(); + + checkKeySize(privateValueSize, pv2); + // + // two way + // + DHBasicAgreement e1 = new DHBasicAgreement(); + DHBasicAgreement e2 = new DHBasicAgreement(); + + e1.init(pv1); + e2.init(pv2); + + BigInteger k1 = e1.calculateAgreement(pu2); + BigInteger k2 = e2.calculateAgreement(pu1); + + if (!k1.equals(k2)) + { + fail("basic " + size + " bit 2-way test failed"); + } + } + + private void checkKeySize( + int privateValueSize, + DHPrivateKeyParameters priv) + { + if (privateValueSize != 0) + { + if (priv.getX().bitLength() != privateValueSize) + { + fail("limited key check failed for key size " + privateValueSize); + } + } + } + + private void testGPWithRandom( + DHKeyPairGenerator kpGen) + { + // + // generate first pair + // + AsymmetricCipherKeyPair pair = kpGen.generateKeyPair(); + + DHPublicKeyParameters pu1 = (DHPublicKeyParameters)pair.getPublic(); + DHPrivateKeyParameters pv1 = (DHPrivateKeyParameters)pair.getPrivate(); + // + // generate second pair + // + pair = kpGen.generateKeyPair(); + + DHPublicKeyParameters pu2 = (DHPublicKeyParameters)pair.getPublic(); + DHPrivateKeyParameters pv2 = (DHPrivateKeyParameters)pair.getPrivate(); + + // + // two way + // + DHAgreement e1 = new DHAgreement(); + DHAgreement e2 = new DHAgreement(); + + e1.init(new ParametersWithRandom(pv1, new SecureRandom())); + e2.init(new ParametersWithRandom(pv2, new SecureRandom())); + + BigInteger m1 = e1.calculateMessage(); + BigInteger m2 = e2.calculateMessage(); + + BigInteger k1 = e1.calculateAgreement(pu2, m2); + BigInteger k2 = e2.calculateAgreement(pu1, m1); + + if (!k1.equals(k2)) + { + fail("basic with random 2-way test failed"); + } + } + + private void testSimpleWithRandom( + DHBasicKeyPairGenerator kpGen) + { + // + // generate first pair + // + AsymmetricCipherKeyPair pair = kpGen.generateKeyPair(); + + DHPublicKeyParameters pu1 = (DHPublicKeyParameters)pair.getPublic(); + DHPrivateKeyParameters pv1 = (DHPrivateKeyParameters)pair.getPrivate(); + // + // generate second pair + // + pair = kpGen.generateKeyPair(); + + DHPublicKeyParameters pu2 = (DHPublicKeyParameters)pair.getPublic(); + DHPrivateKeyParameters pv2 = (DHPrivateKeyParameters)pair.getPrivate(); + + // + // two way + // + DHBasicAgreement e1 = new DHBasicAgreement(); + DHBasicAgreement e2 = new DHBasicAgreement(); + + e1.init(new ParametersWithRandom(pv1, new SecureRandom())); + e2.init(new ParametersWithRandom(pv2, new SecureRandom())); + + BigInteger k1 = e1.calculateAgreement(pu2); + BigInteger k2 = e2.calculateAgreement(pu1); + + if (!k1.equals(k2)) + { + fail("basic with random 2-way test failed"); + } + } + + private DHBasicKeyPairGenerator getDHBasicKeyPairGenerator( + BigInteger g, + BigInteger p, + int privateValueSize) + { + DHParameters dhParams = new DHParameters(p, g, null, privateValueSize); + DHKeyGenerationParameters params = new DHKeyGenerationParameters(new SecureRandom(), dhParams); + DHBasicKeyPairGenerator kpGen = new DHBasicKeyPairGenerator(); + + kpGen.init(params); + + return kpGen; + } + + private DHKeyPairGenerator getDHKeyPairGenerator( + BigInteger g, + BigInteger p) + { + DHParameters dhParams = new DHParameters(p, g); + DHKeyGenerationParameters params = new DHKeyGenerationParameters(new SecureRandom(), dhParams); + DHKeyPairGenerator kpGen = new DHKeyPairGenerator(); + + kpGen.init(params); + + return kpGen; + } + + /** + * this test is can take quiet a while + */ + private void testGeneration( + int size) + { + DHParametersGenerator pGen = new DHParametersGenerator(); + + pGen.init(size, 10, new SecureRandom()); + + DHParameters dhParams = pGen.generateParameters(); + + if (dhParams.getL() != 0) + { + fail("DHParametersGenerator failed to set J to 0 in generated DHParameters"); + } + + DHKeyGenerationParameters params = new DHKeyGenerationParameters(new SecureRandom(), dhParams); + + DHBasicKeyPairGenerator kpGen = new DHBasicKeyPairGenerator(); + + kpGen.init(params); + + // + // generate first pair + // + AsymmetricCipherKeyPair pair = kpGen.generateKeyPair(); + + DHPublicKeyParameters pu1 = (DHPublicKeyParameters)pair.getPublic(); + DHPrivateKeyParameters pv1 = (DHPrivateKeyParameters)pair.getPrivate(); + + // + // generate second pair + // + params = new DHKeyGenerationParameters(new SecureRandom(), pu1.getParameters()); + + kpGen.init(params); + + pair = kpGen.generateKeyPair(); + + DHPublicKeyParameters pu2 = (DHPublicKeyParameters)pair.getPublic(); + DHPrivateKeyParameters pv2 = (DHPrivateKeyParameters)pair.getPrivate(); + + // + // two way + // + DHBasicAgreement e1 = new DHBasicAgreement(); + DHBasicAgreement e2 = new DHBasicAgreement(); + + e1.init(new ParametersWithRandom(pv1, new SecureRandom())); + e2.init(new ParametersWithRandom(pv2, new SecureRandom())); + + BigInteger k1 = e1.calculateAgreement(pu2); + BigInteger k2 = e2.calculateAgreement(pu1); + + if (!k1.equals(k2)) + { + fail("basic with " + size + " bit 2-way test failed"); + } + } + private void testBounds() + { + BigInteger p1 = new BigInteger("00C8028E9151C6B51BCDB35C1F6B2527986A72D8546AE7A4BF41DC4289FF9837EE01592D36C324A0F066149B8B940C86C87D194206A39038AE3396F8E12435BB74449B70222D117B8A2BB77CB0D67A5D664DDE7B75E0FEC13CE0CAF258DAF3ADA0773F6FF0F2051D1859929AAA53B07809E496B582A89C3D7DA8B6E38305626621", 16); + BigInteger g1 = new BigInteger("1F869713181464577FE4026B47102FA0D7675503A4FCDA810881FAEC3524E6DBAEA9B96561EF7F8BEA76466DF11C2F3EB1A90CC5851735BF860606481257EECE6418C0204E61004E85D7131CE54BCBC7AD67E53C79DCB715E7C8D083DCD85D728283EC8F96839B4C9FA7C0727C472BEB94E4613CAFA8D580119C0AF4BF8AF252", 16); + int l1 = 1023; + + BigInteger p2 = new BigInteger("00B333C98720220CC3946F494E25231B3E19F9AD5F6B19F4E7ABF80D8826C491C3224D4F7415A14A7C11D1BE584405FED12C3554F103E56A72D986CA5E325BB9DE07AC37D1EAE5E5AC724D32EF638F0E4462D4C1FC7A45B9FD3A5DF5EC36A1FA4DAA3FBB66AA42B1B71DF416AB547E987513426C7BB8634F5F4D37705514FDC1E1", 16); + BigInteger g2 = new BigInteger("2592F5A99FE46313650CCE66C94C15DBED9F4A45BD05C329986CF5D3E12139F0405A47C6385FEA27BFFEDC4CBABC5BB151F3BEE7CC3D51567F1E2B12A975AA9F48A70BDAAE7F5B87E70ADCF902490A3CBEFEDA41EBA8E12E02B56120B5FDEFBED07F5EAD3AE020DF3C8233216F8F0D35E13A7AE4DA5CBCC0D91EADBF20C281C6", 16); + int l2 = 1024; + + DHKeyGenerationParameters params1 = new DHKeyGenerationParameters(new SecureRandom(), new DHParameters(p1, g1, null, l1)); + DHKeyGenerationParameters params2 = new DHKeyGenerationParameters(new SecureRandom(), new DHParameters(p2, g2, null, l2)); + + DHBasicKeyPairGenerator kpGen = new DHBasicKeyPairGenerator(); + + kpGen.init(params1); + kpGen.init(params2); + } + + public void performTest() + { + testDHBasic(512, 0, g512, p512); + testDHBasic(768, 0, g768, p768); + testDHBasic(1024, 0, g1024, p1024); + + testDHBasic(512, 64, g512, p512); + testDHBasic(768, 128, g768, p768); + testDHBasic(1024, 256, g1024, p1024); + + testDH(512, g512, p512); + testDH(768, g768, p768); + testDH(1024, g1024, p1024); + + testBounds(); + + // + // generation test. + // + testGeneration(256); + + // + // with random test + // + DHBasicKeyPairGenerator kpBasicGen = getDHBasicKeyPairGenerator(g512, p512, 0); + + testSimpleWithRandom(kpBasicGen); + + DHKeyPairGenerator kpGen = getDHKeyPairGenerator(g512, p512); + + testGPWithRandom(kpGen); + + // + // parameter tests + // + DHAgreement dh = new DHAgreement(); + AsymmetricCipherKeyPair dhPair = kpGen.generateKeyPair(); + + try + { + dh.init(dhPair.getPublic()); + fail("DHAgreement key check failed"); + } + catch (IllegalArgumentException e) + { + // ignore + } + + DHKeyPairGenerator kpGen768 = getDHKeyPairGenerator(g768, p768); + + try + { + dh.init(dhPair.getPrivate()); + + dh.calculateAgreement((DHPublicKeyParameters)kpGen768.generateKeyPair().getPublic(), BigInteger.valueOf(100)); + + fail("DHAgreement agreement check failed"); + } + catch (IllegalArgumentException e) + { + // ignore + } + + DHBasicAgreement dhBasic = new DHBasicAgreement(); + AsymmetricCipherKeyPair dhBasicPair = kpBasicGen.generateKeyPair(); + + try + { + dhBasic.init(dhBasicPair.getPublic()); + fail("DHBasicAgreement key check failed"); + } + catch (IllegalArgumentException e) + { + // expected + } + + DHBasicKeyPairGenerator kpBasicGen768 = getDHBasicKeyPairGenerator(g768, p768, 0); + + try + { + dhBasic.init(dhPair.getPrivate()); + + dhBasic.calculateAgreement((DHPublicKeyParameters)kpBasicGen768.generateKeyPair().getPublic()); + + fail("DHBasicAgreement agreement check failed"); + } + catch (IllegalArgumentException e) + { + // expected + } + } + + public static void main( + String[] args) + { + runTest(new DHTest()); + } +} |