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Java 2, Java 3, compatibility updates
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core/src/test/jdk1.3/org/bouncycastle/crypto/test/Ed25519Test.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| package org.bouncycastle.crypto.test; | ||
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| import java.security.SecureRandom; | ||
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| import org.bouncycastle.crypto.AsymmetricCipherKeyPair; | ||
| import org.bouncycastle.crypto.Signer; | ||
| import org.bouncycastle.crypto.generators.Ed25519KeyPairGenerator; | ||
| import org.bouncycastle.crypto.params.Ed25519KeyGenerationParameters; | ||
| import org.bouncycastle.crypto.params.Ed25519PrivateKeyParameters; | ||
| import org.bouncycastle.crypto.params.Ed25519PublicKeyParameters; | ||
| import org.bouncycastle.crypto.signers.Ed25519Signer; | ||
| import org.bouncycastle.crypto.signers.Ed25519ctxSigner; | ||
| import org.bouncycastle.crypto.signers.Ed25519phSigner; | ||
| import org.bouncycastle.math.ec.rfc8032.Ed25519; | ||
| import org.bouncycastle.util.Arrays; | ||
| import org.bouncycastle.util.encoders.Base64; | ||
| import org.bouncycastle.util.encoders.Hex; | ||
| import org.bouncycastle.util.test.SimpleTest; | ||
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| public class Ed25519Test | ||
| extends SimpleTest | ||
| { | ||
| private static final SecureRandom RANDOM = new SecureRandom(); | ||
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| public String getName() | ||
| { | ||
| return "Ed25519"; | ||
| } | ||
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| public static void main(String[] args) | ||
| { | ||
| runTest(new Ed25519Test()); | ||
| } | ||
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| public void performTest() | ||
| throws Exception | ||
| { | ||
| basicSigTest(); | ||
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| for (int i = 0; i < 10; ++i) | ||
| { | ||
| testConsistency(Ed25519.Algorithm.Ed25519, null); | ||
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| byte[] context = randomContext(RANDOM.nextInt() & 255); | ||
| testConsistency(Ed25519.Algorithm.Ed25519ctx, context); | ||
| testConsistency(Ed25519.Algorithm.Ed25519ph, context); | ||
| } | ||
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| } | ||
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| private void basicSigTest() | ||
| throws Exception | ||
| { | ||
| Ed25519PrivateKeyParameters privateKey = new Ed25519PrivateKeyParameters( | ||
| Hex.decode("9d61b19deffd5a60ba844af492ec2cc44449c5697b326919703bac031cae7f60")); | ||
| Ed25519PublicKeyParameters publicKey = new Ed25519PublicKeyParameters( | ||
| Hex.decode("d75a980182b10ab7d54bfed3c964073a0ee172f3daa62325af021a68f707511a")); | ||
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| byte[] sig = Hex.decode("e5564300c360ac729086e2cc806e828a84877f1eb8e5d974d873e065224901555fb8821590a33bacc61e39701cf9b46bd25bf5f0595bbe24655141438e7a100b"); | ||
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| Signer signer = new Ed25519Signer(); | ||
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| signer.init(true, privateKey); | ||
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| isTrue(areEqual(sig, signer.generateSignature())); | ||
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| signer.init(false, publicKey); | ||
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| isTrue(signer.verifySignature(sig)); | ||
| } | ||
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| private Signer createSigner(int algorithm, byte[] context) | ||
| { | ||
| switch (algorithm) | ||
| { | ||
| case Ed25519.Algorithm.Ed25519: | ||
| return new Ed25519Signer(); | ||
| case Ed25519.Algorithm.Ed25519ctx: | ||
| return new Ed25519ctxSigner(context); | ||
| case Ed25519.Algorithm.Ed25519ph: | ||
| return new Ed25519phSigner(context); | ||
| default: | ||
| throw new IllegalArgumentException("algorithm"); | ||
| } | ||
| } | ||
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| private byte[] randomContext(int length) | ||
| { | ||
| byte[] context = new byte[length]; | ||
| RANDOM.nextBytes(context); | ||
| return context; | ||
| } | ||
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| private void testConsistency(int algorithm, byte[] context) | ||
| throws Exception | ||
| { | ||
| Ed25519KeyPairGenerator kpg = new Ed25519KeyPairGenerator(); | ||
| kpg.init(new Ed25519KeyGenerationParameters(RANDOM)); | ||
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| AsymmetricCipherKeyPair kp = kpg.generateKeyPair(); | ||
| Ed25519PrivateKeyParameters privateKey = (Ed25519PrivateKeyParameters)kp.getPrivate(); | ||
| Ed25519PublicKeyParameters publicKey = (Ed25519PublicKeyParameters)kp.getPublic(); | ||
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| byte[] msg = new byte[RANDOM.nextInt() & 255]; | ||
| RANDOM.nextBytes(msg); | ||
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| Signer signer = createSigner(algorithm, context); | ||
| signer.init(true, privateKey); | ||
| signer.update(msg, 0, msg.length); | ||
| byte[] signature = signer.generateSignature(); | ||
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| Signer verifier = createSigner(algorithm, context); | ||
|
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| { | ||
| verifier.init(false, publicKey); | ||
| verifier.update(msg, 0, msg.length); | ||
| boolean shouldVerify = verifier.verifySignature(signature); | ||
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| if (!shouldVerify) | ||
| { | ||
| fail("Ed25519(" + algorithm + ") signature failed to verify"); | ||
| } | ||
| } | ||
|
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| { | ||
| byte[] wrongLengthSignature = Arrays.append(signature, (byte)0x00); | ||
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| verifier.init(false, publicKey); | ||
| verifier.update(msg, 0, msg.length); | ||
| boolean shouldNotVerify = verifier.verifySignature(wrongLengthSignature); | ||
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| if (shouldNotVerify) | ||
| { | ||
| fail("Ed25519(" + algorithm + ") wrong length signature incorrectly verified"); | ||
| } | ||
| } | ||
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| if (msg.length > 0) | ||
| { | ||
| boolean shouldNotVerify = verifier.verifySignature(signature); | ||
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| if (shouldNotVerify) | ||
| { | ||
| fail("Ed25519(" + algorithm + ") wrong length failure did not reset verifier"); | ||
| } | ||
| } | ||
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| { | ||
| byte[] badSignature = Arrays.clone(signature); | ||
| badSignature[(RANDOM.nextInt() >>> 1) % badSignature.length] ^= 1 << (RANDOM.nextInt() & 7); | ||
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| verifier.init(false, publicKey); | ||
| verifier.update(msg, 0, msg.length); | ||
| boolean shouldNotVerify = verifier.verifySignature(badSignature); | ||
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| if (shouldNotVerify) | ||
| { | ||
| fail("Ed25519(" + algorithm + ") bad signature incorrectly verified"); | ||
| } | ||
| } | ||
| } | ||
| } |
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