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-rw-r--r--core/src/test/java/org/bouncycastle/pqc/crypto/test/NTRUSignerTest.java317
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diff --git a/core/src/test/java/org/bouncycastle/pqc/crypto/test/NTRUSignerTest.java b/core/src/test/java/org/bouncycastle/pqc/crypto/test/NTRUSignerTest.java
deleted file mode 100644
index 3a765af4..00000000
--- a/core/src/test/java/org/bouncycastle/pqc/crypto/test/NTRUSignerTest.java
+++ /dev/null
@@ -1,317 +0,0 @@
-package org.bouncycastle.pqc.crypto.test;
-
-
-import junit.framework.TestCase;
-
-/**
- * @deprecated algorithm no longer safe.
- */
-public class NTRUSignerTest
- extends TestCase
-{
- public void testStub()
- {
-
- }
- /*
- public void testCreateBasis()
- {
- for (NTRUSigningKeyGenerationParameters params : new NTRUSigningKeyGenerationParameters[]{NTRUSigningKeyGenerationParameters.TEST157.clone(), NTRUSigningKeyGenerationParameters.TEST157_PROD.clone()})
- {
- testCreateBasis(params);
- }
- }
-
- private void testCreateBasis(NTRUSigningKeyGenerationParameters params)
- {
- NTRUSigningKeyPairGenerator ntru = new NTRUSigningKeyPairGenerator();
-
- ntru.init(params);
-
- NTRUSigningKeyPairGenerator.FGBasis basis = (NTRUSigningKeyPairGenerator.FGBasis)ntru.generateBoundedBasis();
- assertTrue(equalsQ(basis.f, basis.fPrime, basis.F, basis.G, params.q, params.N));
-
- // test KeyGenAlg.FLOAT (default=RESULTANT)
- params.keyGenAlg = NTRUSigningKeyGenerationParameters.KEY_GEN_ALG_FLOAT;
- ntru.init(params);
- basis = (NTRUSigningKeyPairGenerator.FGBasis)ntru.generateBoundedBasis();
- assertTrue(equalsQ(basis.f, basis.fPrime, basis.F, basis.G, params.q, params.N));
- }
-
- // verifies that f*G-g*F=q
- private boolean equalsQ(Polynomial f, Polynomial g, IntegerPolynomial F, IntegerPolynomial G, int q, int N)
- {
- IntegerPolynomial x = f.mult(G);
- x.sub(g.mult(F));
- boolean equalsQ = true;
- for (int i = 1; i < x.coeffs.length; i++)
- {
- equalsQ &= x.coeffs[i] == 0;
- }
- equalsQ &= x.coeffs[0] == q;
- return equalsQ;
- }
-
- /**
- * a test for the one-method-call variants: sign(byte, SignatureKeyPair) and verify(byte[], byte[], SignatureKeyPair)
- *
- public void testSignVerify157()
- throws IOException
- {
- for (NTRUSigningKeyGenerationParameters params : new NTRUSigningKeyGenerationParameters[]{NTRUSigningKeyGenerationParameters.TEST157.clone(), NTRUSigningKeyGenerationParameters.TEST157_PROD.clone(), NTRUSigningKeyGenerationParameters.APR2011_439.clone(), NTRUSigningKeyGenerationParameters.APR2011_439_PROD.clone(), NTRUSigningKeyGenerationParameters.APR2011_743.clone(), NTRUSigningKeyGenerationParameters.APR2011_743_PROD.clone()})
- {
- testSignVerify(params);
- }
- }
-
- public void testSignVerify439()
- throws IOException
- {
- for (NTRUSigningKeyGenerationParameters params : new NTRUSigningKeyGenerationParameters[]{NTRUSigningKeyGenerationParameters.APR2011_439.clone(), NTRUSigningKeyGenerationParameters.APR2011_439_PROD.clone()})
- {
- testSignVerify(params);
- }
- }
-//
-// public void testSignVerify743()
-// throws IOException
-// {
-// for (NTRUSigningKeyGenerationParameters params : new NTRUSigningKeyGenerationParameters[]{NTRUSigningKeyGenerationParameters.APR2011_743.clone(), NTRUSigningKeyGenerationParameters.APR2011_743_PROD.clone()})
-// {
-// testSignVerify(params);
-// }
-// }
-
- private void testSignVerify(NTRUSigningKeyGenerationParameters params)
- throws IOException
- {
- NTRUSigner ntru = new NTRUSigner(params.getSigningParameters());
- NTRUSigningKeyPairGenerator kGen = new NTRUSigningKeyPairGenerator();
-
- kGen.init(params);
-
- AsymmetricCipherKeyPair kp = kGen.generateKeyPair();
-
- Random rng = new Random();
- byte[] msg = new byte[10 + rng.nextInt(1000)];
- rng.nextBytes(msg);
-
- // sign and verify
- ntru.init(true, kp.getPrivate());
-
- ntru.update(msg, 0, msg.length);
-
- byte[] s = ntru.generateSignature();
-
- ntru.init(false, kp.getPublic());
-
- ntru.update(msg, 0, msg.length);
-
- boolean valid = ntru.verifySignature(s);
-
- assertTrue(valid);
-
- // altering the signature should make it invalid
- s[rng.nextInt(params.N)] += 1;
- ntru.init(false, kp.getPublic());
-
- ntru.update(msg, 0, msg.length);
-
- valid = ntru.verifySignature(s);
- assertFalse(valid);
-
- // test that a random signature fails
- rng.nextBytes(s);
-
- ntru.init(false, kp.getPublic());
-
- ntru.update(msg, 0, msg.length);
-
- valid = ntru.verifySignature(s);
- assertFalse(valid);
-
- // encode, decode keypair, test
- NTRUSigningPrivateKeyParameters priv = new NTRUSigningPrivateKeyParameters(((NTRUSigningPrivateKeyParameters)kp.getPrivate()).getEncoded(), params);
- NTRUSigningPublicKeyParameters pub = new NTRUSigningPublicKeyParameters(((NTRUSigningPublicKeyParameters)kp.getPublic()).getEncoded(), params.getSigningParameters());
- kp = new AsymmetricCipherKeyPair(pub, priv);
-
- ntru.init(true, kp.getPrivate());
- ntru.update(msg, 0, msg.length);
-
- s = ntru.generateSignature();
-
- ntru.init(false, kp.getPublic());
- ntru.update(msg, 0, msg.length);
-
- valid = ntru.verifySignature(s);
- assertTrue(valid);
-
- // altering the signature should make it invalid
- s[rng.nextInt(s.length)] += 1;
- ntru.init(false, kp.getPublic());
- ntru.update(msg, 0, msg.length);
- valid = ntru.verifySignature(s);
- assertFalse(valid);
-
- // sparse/dense
- params.sparse = !params.sparse;
-
- ntru.init(true, kp.getPrivate());
- ntru.update(msg, 0, msg.length);
-
- s = ntru.generateSignature();
-
- ntru.init(false, kp.getPublic());
- ntru.update(msg, 0, msg.length);
- valid = ntru.verifySignature(s);
- assertTrue(valid);
-
- s[rng.nextInt(s.length)] += 1;
- ntru.init(false, kp.getPublic());
- ntru.update(msg, 0, msg.length);
- valid = ntru.verifySignature(s);
- assertFalse(valid);
- params.sparse = !params.sparse;
-
- // decrease NormBound to force multiple signing attempts
- NTRUSigningKeyGenerationParameters params2 = params.clone();
- params2.normBoundSq *= 4.0 / 9;
- params2.signFailTolerance = 10000;
- ntru = new NTRUSigner(params2.getSigningParameters());
-
- ntru.init(true, kp.getPrivate());
- ntru.update(msg, 0, msg.length);
-
- s = ntru.generateSignature();
-
- ntru.init(false, kp.getPublic());
- ntru.update(msg, 0, msg.length);
- valid = ntru.verifySignature(s);
-
- assertTrue(valid);
-
- // test KeyGenAlg.FLOAT (default=RESULTANT)
- params2 = params.clone();
- params.keyGenAlg = NTRUSigningKeyGenerationParameters.KEY_GEN_ALG_FLOAT;
- ntru = new NTRUSigner(params.getSigningParameters());
-
- kGen.init(params);
-
- kp = kGen.generateKeyPair();
- ntru.init(true, kp.getPrivate());
- ntru.update(msg, 0, msg.length);
-
- s = ntru.generateSignature();
- ntru.init(false, kp.getPublic());
- ntru.update(msg, 0, msg.length);
- valid = ntru.verifySignature(s);
- assertTrue(valid);
- s[rng.nextInt(s.length)] += 1;
- ntru.init(false, kp.getPublic());
- ntru.update(msg, 0, msg.length);
- valid = ntru.verifySignature(s);
- assertFalse(valid);
- }
-
- /**
- * test for the initSign/update/sign and initVerify/update/verify variant
- *
- public void testInitUpdateSign()
- {
- for (NTRUSigningKeyGenerationParameters params : new NTRUSigningKeyGenerationParameters[]{NTRUSigningKeyGenerationParameters.TEST157.clone(), NTRUSigningKeyGenerationParameters.TEST157_PROD.clone()})
- {
- testInitUpdateSign(params);
- }
- }
-
- private void testInitUpdateSign(NTRUSigningKeyGenerationParameters params)
- {
- NTRUSigner ntru = new NTRUSigner(params.getSigningParameters());
- NTRUSigningKeyPairGenerator kGen = new NTRUSigningKeyPairGenerator();
-
- kGen.init(params);
-
- AsymmetricCipherKeyPair kp = kGen.generateKeyPair();
-
- Random rng = new Random();
- byte[] msg = new byte[10 + rng.nextInt(1000)];
- rng.nextBytes(msg);
-
- // sign and verify a message in two pieces each
- ntru.init(true, kp.getPrivate());
- int splitIdx = rng.nextInt(msg.length);
- ntru.update(msg[0]); // first byte
- ntru.update(msg, 1, splitIdx - 1); // part 1 of msg
- ntru.update(msg, splitIdx, msg.length - splitIdx);
- byte[] s = ntru.generateSignature(); // part 2 of msg
- ntru.init(false, kp.getPublic());
- splitIdx = rng.nextInt(msg.length);
- ntru.update(msg, 0, splitIdx); // part 1 of msg
- ntru.update(msg, splitIdx, msg.length - splitIdx); // part 2 of msg
- boolean valid = ntru.verifySignature(s);
- assertTrue(valid);
- // verify the same signature with the one-step method
- ntru.init(false, (NTRUSigningPublicKeyParameters)kp.getPublic());
- ntru.update(msg, 0, msg.length); // part 1 of msg
- valid = ntru.verifySignature(s);
- assertTrue(valid);
-
- // sign using the one-step method and verify using the multi-step method
- ntru.init(true, kp.getPrivate());
- ntru.update(msg, 0, msg.length);
- s = ntru.generateSignature();
- ntru.init(false, (NTRUSigningPublicKeyParameters)kp.getPublic());
- splitIdx = rng.nextInt(msg.length);
- ntru.update(msg, 0, splitIdx); // part 1 of msg
- ntru.update(msg, splitIdx, msg.length - splitIdx); // part 2 of msg
- valid = ntru.verifySignature(s);
- assertTrue(valid);
- }
-
- public void testCreateMsgRep()
- {
- for (NTRUSigningKeyGenerationParameters params : new NTRUSigningKeyGenerationParameters[]{NTRUSigningKeyGenerationParameters.TEST157.clone(), NTRUSigningKeyGenerationParameters.TEST157_PROD.clone()})
- {
- testCreateMsgRep(params);
- }
- }
-
- private void testCreateMsgRep(NTRUSigningKeyGenerationParameters params)
- {
- VisibleNTRUSigner ntru = new VisibleNTRUSigner(params.getSigningParameters());
- byte[] msgHash = "adfsadfsdfs23234234".getBytes();
-
- // verify that the message representative is reproducible
- IntegerPolynomial i1 = ntru.createMsgRep(msgHash, 1);
- IntegerPolynomial i2 = ntru.createMsgRep(msgHash, 1);
- assertTrue(Arrays.areEqual(i1.coeffs, i2.coeffs));
- i1 = ntru.createMsgRep(msgHash, 5);
- i2 = ntru.createMsgRep(msgHash, 5);
- assertTrue(Arrays.areEqual(i1.coeffs, i2.coeffs));
-
- i1 = ntru.createMsgRep(msgHash, 2);
- i2 = ntru.createMsgRep(msgHash, 3);
- assertFalse(Arrays.areEqual(i1.coeffs, i2.coeffs));
- }
-
- private class VisibleNTRUSigner
- extends NTRUSigner
- {
-
- /**
- * Constructs a new instance with a set of signature parameters.
- *
- * @param params signature parameters
- *
- public VisibleNTRUSigner(NTRUSigningParameters params)
- {
- super(params);
- }
-
- public IntegerPolynomial createMsgRep(byte[] hash, int i)
- {
- return super.createMsgRep(hash, i);
- }
- }
- */
-} \ No newline at end of file
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