56 lines
1.9 KiB
Java
56 lines
1.9 KiB
Java
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package profiling.BigInteger;
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import com.google.protobuf.InvalidProtocolBufferException;
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import meerkat.crypto.concrete.ECElGamalEncryption;
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import meerkat.protobuf.ConcreteCrypto;
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import meerkat.protobuf.Voting;
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import mixer.Utiles;
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import org.junit.Before;
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import org.junit.Test;
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import qilin.primitives.RandomOracle;
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import qilin.primitives.concrete.DigestOracle;
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import qilin.primitives.concrete.ECElGamal;
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import qilin.primitives.concrete.ECGroup;
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import java.math.BigInteger;
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import java.util.Random;
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/**
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* Created by Tzlil on 1/21/2016.
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*/
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public class Modulo {
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int tests;
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BigInteger[] randoms;
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BigInteger orderUpperBound;
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public void setup() throws Exception {
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Random rand = new Random();
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ECGroup group = new ECGroup("secp256k1");
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orderUpperBound = group.orderUpperBound();
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tests = 1<<17;
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randoms = new BigInteger[tests];
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BigInteger sk = ECElGamal.generateSecretKey(group, rand);
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ECElGamal.SK key = new ECElGamal.SK(group, sk);
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ConcreteCrypto.ElGamalPublicKey serializedPk = Utiles.serializePk(group, key);
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ECElGamalEncryption enc = new ECElGamalEncryption();
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enc.init(serializedPk);
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for (int i =0 ; i < tests ; i++){
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randoms[i] = new BigInteger(enc.generateRandomness(rand).getData().toByteArray());
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}
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}
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public void ModuloProfiling() throws InvalidProtocolBufferException {
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System.out.println("ModuloProfiling");
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System.out.println("#" + tests + " tests");
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long startTime = System.currentTimeMillis();
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for (int i = 0 ; i < randoms.length;i++) {
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randoms[i].mod(orderUpperBound);
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}
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long finishTime = System.currentTimeMillis();
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System.out.println(" that took: "+(finishTime-startTime)+ " ms");
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System.out.println(" avg of "+((double)(finishTime-startTime))/tests + " ms");
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}
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}
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