Example usage for org.bouncycastle.asn1 DERSequence DERSequence

Introduction

In this page you can find the example usage for org.bouncycastle.asn1 DERSequence DERSequence.

Prototype

public DERSequence(ASN1Encodable[] elements)

Source Link

Document

Create a sequence containing an array of objects.

Usage

From source file:org.cryptoworkshop.ximix.client.connection.signing.ECDSASigningService.java

License:Apache License

public MessageReply generateSig(SignatureCreateMessage ecdsaCreate)
        throws ServiceConnectionException, IOException {
    Participant[] participants = new Participant[ecdsaCreate.getNodesToUse().size()];
    int index = 0;

    for (String name : ecdsaCreate.getNodesToUse()) {
        MessageReply seqRep = sendMessage(name, Type.FETCH_SEQUENCE_NO,
                new KeyIDMessage(ecdsaCreate.getKeyID()));
        // TODO: need to drop out people who don't reply.
        participants[index] = new Participant(
                BigIntegerMessage.getInstance(seqRep.getPayload()).getValue().intValue(), name);
        index++;//from  w w w .j a va  2 s. c om
    }

    FetchPublicKeyMessage fetchMessage = new FetchPublicKeyMessage(ecdsaCreate.getKeyID());

    MessageReply reply = connection.sendMessage(ClientMessage.Type.FETCH_PUBLIC_KEY, fetchMessage);

    ECDomainParameters domainParams = ((ECPublicKeyParameters) PublicKeyFactory
            .createKey(SubjectPublicKeyInfo.getInstance(reply.getPayload()))).getParameters();
    BigInteger n = domainParams.getN();
    BigInteger e = calculateE(n, ecdsaCreate.getMessage());
    // TODO: need to take into account node failure during startup.

    reply = sendMessage(participants[0].getName(), Type.FETCH_SIG_ID, DERNull.INSTANCE);

    SigID sigID = new SigID(IDMessage.getInstance(reply.getPayload()).getID());

    BigInteger r, s;
    do // generate s
    {
        ECDSAInitialiseMessage initialiseMessage = new ECDSAInitialiseMessage(sigID.getID(),
                ecdsaCreate.getKeyID(), ecdsaCreate.getThreshold(), domainParams.getN(), participants);

        sendInitialiseMessage(Type.INIT_K_AND_P, initialiseMessage);
        sendInitialiseMessage(Type.INIT_A, initialiseMessage);
        sendInitialiseMessage(Type.INIT_B, initialiseMessage);
        sendInitialiseMessage(Type.INIT_C, initialiseMessage);
        sendInitialiseMessage(Type.INIT_R, initialiseMessage);
        sendInitialiseMessage(Type.INIT_MU, initialiseMessage);

        MessageReply seqRep = sendMessage(participants[0].getName(), Type.FETCH_R,
                new IDMessage(sigID.getID()));

        r = BigIntegerMessage.getInstance(seqRep.getPayload()).getValue();

        s = accumulateBigInteger(participants, Type.PRIVATE_KEY_SIGN,
                new ECDSAPartialCreateMessage(sigID.getID(), ecdsaCreate.getKeyID(), e, participants), n);
    } while (s.equals(BigInteger.ZERO));

    ASN1EncodableVector v = new ASN1EncodableVector();

    v.add(new ASN1Integer(r));
    v.add(new ASN1Integer(s));

    return new MessageReply(MessageReply.Type.OKAY, new DERSequence(v));
}

From source file:org.cryptoworkshop.ximix.client.connection.signing.message.BLSPartialCreateMessage.java

License:Apache License

@Override
public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector v = new ASN1EncodableVector();

    v.add(new DERUTF8String(keyID));
    v.add(h);/*from  ww w .  j  a v a2  s .com*/
    v.add(MessageUtils.toASN1Sequence(nodesToUse));

    return new DERSequence(v);
}

From source file:org.cryptoworkshop.ximix.client.connection.signing.message.ECDSAFetchMessage.java

License:Apache License

@Override
public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector v = new ASN1EncodableVector();

    v.add(new DERUTF8String(sigID));
    v.add(new DERUTF8String(keyID));
    v.add(MessageUtils.toASN1Sequence(nodesToUse));

    return new DERSequence(v);
}

From source file:org.cryptoworkshop.ximix.client.connection.signing.message.ECDSAInitialiseMessage.java

License:Apache License

@Override
public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector v = new ASN1EncodableVector();

    v.add(new DERUTF8String(sigID));
    v.add(new DERUTF8String(keyID));
    v.add(new ASN1Integer(threshold));
    v.add(new ASN1Integer(n));
    v.add(MessageUtils.toASN1Sequence(nodesToUse));

    return new DERSequence(v);
}

From source file:org.cryptoworkshop.ximix.client.connection.signing.message.ECDSAPartialCreateMessage.java

License:Apache License

@Override
public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector v = new ASN1EncodableVector();

    v.add(new DERUTF8String(sigID));
    v.add(new DERUTF8String(keyID));
    v.add(new ASN1Integer(e));
    v.add(MessageUtils.toASN1Sequence(nodesToUse));

    return new DERSequence(v);
}

From source file:org.cryptoworkshop.ximix.client.connection.signing.message.ECDSAPointMessage.java

License:Apache License

@Override
public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector v = new ASN1EncodableVector();

    v.add(new DERUTF8String(keyID));
    v.add(new DEROctetString(point));

    return new DERSequence(v);
}

From source file:org.cryptoworkshop.ximix.common.asn1.board.Pair.java

License:Apache License

/**
 * <pre>/*from   w  ww. j  ava 2 s  . c o m*/
 *     Pair ::= SEQUENCE {
 *         x OCTET STRING,
 *         y OCTET STRING
 *     }
 * </pre>
 *
 * @return an encoding of an ASN.1 sequence
 */
public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector v = new ASN1EncodableVector();

    v.add(new DEROctetString(ecPair.getX().getEncoded()));
    v.add(new DEROctetString(ecPair.getY().getEncoded()));

    return new DERSequence(v);
}

From source file:org.cryptoworkshop.ximix.common.asn1.board.PairSequence.java

License:Apache License

/**
 * <pre>/*from w w  w  .  j  a  v a  2s .c o  m*/
 *     PairSequence ::= SEQUENCE OF Pair
 * </pre>
 *
 * @return an encoding of an ASN.1 sequence
 */
public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector v = new ASN1EncodableVector();

    for (ECPair pair : ecPairs) {
        v.add(new Pair(pair));
    }

    return new DERSequence(v);
}

From source file:org.cryptoworkshop.ximix.common.asn1.board.PairSequenceWithProofs.java

License:Apache License

/**
 * <pre>/*from  w ww  .j ava 2 s .  c om*/
 *     PairSequence ::= SEQUENCE OF Pair
 * </pre>
 *
 * @return an encoding of an ASN.1 sequence
 */
public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector tot = new ASN1EncodableVector();
    ASN1EncodableVector v = new ASN1EncodableVector();

    for (ECPair pair : ecPairs) {
        v.add(new Pair(pair));
    }

    tot.add(new DERSequence(v));

    v = new ASN1EncodableVector();
    for (ECDecryptionProof proof : ecProofs) {
        ASN1EncodableVector proofV = new ASN1EncodableVector();

        proofV.add(new DEROctetString(proof.getA().getEncoded(true)));
        proofV.add(new DEROctetString(proof.getB().getEncoded(true)));
        proofV.add(new ASN1Integer(proof.getR()));

        v.add(new DERSequence(proofV));
    }

    tot.add(new DERSequence(v));

    return new DERSequence(tot);
}

From source file:org.cryptoworkshop.ximix.common.asn1.board.PointSequence.java

License:Apache License

/**
 * <pre>/*from  ww  w . j  ava 2 s .  c  om*/
 *     PointSequence ::= SEQUENCE OF Point
 * </pre>
 *
 * @return an encoding of an ASN.1 sequence
 */
public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector v = new ASN1EncodableVector();

    for (ECPoint point : ecPoints) {
        v.add(new DEROctetString(point.getEncoded()));
    }

    return new DERSequence(v);
}