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package org.spongycastle.pqc.crypto.test;
import java.math.BigInteger;
import java.security.SecureRandom;
import org.spongycastle.crypto.AsymmetricCipherKeyPair;
import org.spongycastle.crypto.digests.SHA224Digest;
import org.spongycastle.crypto.params.ParametersWithRandom;
import org.spongycastle.pqc.crypto.DigestingMessageSigner;
import org.spongycastle.pqc.crypto.rainbow.RainbowKeyGenerationParameters;
import org.spongycastle.pqc.crypto.rainbow.RainbowKeyPairGenerator;
import org.spongycastle.pqc.crypto.rainbow.RainbowParameters;
import org.spongycastle.pqc.crypto.rainbow.RainbowSigner;
import org.spongycastle.util.BigIntegers;
import org.spongycastle.util.encoders.Hex;
import org.spongycastle.util.test.FixedSecureRandom;
import org.spongycastle.util.test.SimpleTest;
public class RainbowSignerTest
extends SimpleTest
{
byte[] keyData = Hex.decode("b5014e4b60ef2ba8b6211b4062ba3224e0427dd3");
SecureRandom keyRandom = new FixedSecureRandom(new byte[][] { keyData, keyData });
public String getName()
{
return "Rainbow";
}
public void performTest()
{
RainbowParameters params = new RainbowParameters();
RainbowKeyPairGenerator rainbowKeyGen = new RainbowKeyPairGenerator();
RainbowKeyGenerationParameters genParam = new RainbowKeyGenerationParameters(keyRandom, params);
rainbowKeyGen.init(genParam);
AsymmetricCipherKeyPair pair = rainbowKeyGen.generateKeyPair();
ParametersWithRandom param = new ParametersWithRandom(pair.getPrivate(), keyRandom);
DigestingMessageSigner rainbowSigner = new DigestingMessageSigner(new RainbowSigner() , new SHA224Digest());
rainbowSigner.init(true, param);
byte[] message = BigIntegers.asUnsignedByteArray(new BigInteger("968236873715988614170569073515315707566766479517"));
rainbowSigner.update(message, 0, message.length);
byte[] sig = rainbowSigner.generateSignature();
rainbowSigner.init(false, pair.getPublic());
rainbowSigner.update(message, 0, message.length);
if (!rainbowSigner.verify(sig))
{
fail("verification fails");
}
}
public static void main(
String[] args)
{
runTest(new RainbowSignerTest());
}
}
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