64 lines
2.2 KiB
Java
64 lines
2.2 KiB
Java
package profiling.Convert;
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import com.google.protobuf.InvalidProtocolBufferException;
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import meerkat.crypto.concrete.ECElGamalEncryption;
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import meerkat.crypto.concrete.Util;
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import meerkat.protobuf.ConcreteCrypto;
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import meerkat.protobuf.Crypto;
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import meerkat.protobuf.Voting;
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import meerkat.mixer.Utils;
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import org.factcenter.qilin.primitives.concrete.ECElGamal;
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import org.factcenter.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 1/25/2016.
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*/
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public class RerandomizableEncryptedMessage2ElGamalCiphertext {
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Random rand;
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ECElGamal.SK key;
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ECGroup group;
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ECElGamalEncryption enc;
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ConcreteCrypto.ElGamalPublicKey serializedPk;
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int tests;
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Crypto.RerandomizableEncryptedMessage[] encryptedMessage;
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public void setup() throws Exception {
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rand = new Random();
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group = new ECGroup("secp256k1");
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BigInteger sk = ECElGamal.generateSecretKey(group, rand);
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key = new ECElGamal.SK(group, sk);
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serializedPk = Util.encodePK(group, key);
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enc = new ECElGamalEncryption();
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enc.init(serializedPk);
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tests = 1024 * 18;
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encryptedMessage = new Crypto.RerandomizableEncryptedMessage[tests];
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Voting.PlaintextBallot msg;
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for (int i = 0; i < tests; i ++){
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msg = Utils.genRandomBallot(2,3,16);
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encryptedMessage[i] = enc.encrypt(msg, enc.generateRandomness(rand));
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}
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}
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public void RerandomizableEncryptedMessage2ElGamalCiphertext() throws InvalidProtocolBufferException {
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System.out.println("RerandomizableEncryptedMessage2ElGamalCiphertext");
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System.out.println("#"+ tests + " tests");
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System.out.println("start tests operations");
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long startTime = System.currentTimeMillis();
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for (int i = 0; i < tests; i ++){
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ECElGamalEncryption.RerandomizableEncryptedMessage2ElGamalCiphertext(encryptedMessage[i]);
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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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