Examples with WitnessMessageSignature com.github.dedis.popstellar.model.network.method.message.data.message.WitnessMessageSignature used on opensource projects

Example 1 with WitnessMessageSignature

use of com.github.dedis.popstellar.model.network.method.message.data.message.WitnessMessageSignature in project popstellar by dedis.

the class LaoDetailViewModel method signMessage.

public void signMessage(WitnessMessage witnessMessage) {
    Log.d(TAG, "signing message with ID " + witnessMessage.getMessageId());
    Lao lao = getCurrentLaoValue();
    if (lao == null) {
        Log.d(TAG, LAO_FAILURE_MESSAGE);
        return;
    }
    Channel channel = lao.getChannel();
    try {
        KeyPair mainKey = keyManager.getMainKeyPair();
        // generate the signature of the message
        Signature signature = mainKey.sign(witnessMessage.getMessageId());
        Log.d(TAG, PUBLISH_MESSAGE);
        WitnessMessageSignature signatureMessage = new WitnessMessageSignature(witnessMessage.getMessageId(), signature);
        disposables.add(networkManager.getMessageSender().publish(keyManager.getMainKeyPair(), channel, signatureMessage).subscribe(() -> Log.d(TAG, "Verifying the signature of  message  with id: " + witnessMessage.getMessageId()), error -> ErrorUtils.logAndShow(getApplication(), TAG, error, R.string.error_sign_message)));
    } catch (GeneralSecurityException e) {
        Log.d(TAG, PK_FAILURE_MESSAGE, e);
    }
}

Example 2 with WitnessMessageSignature

use of com.github.dedis.popstellar.model.network.method.message.data.message.WitnessMessageSignature in project popstellar by dedis.

the class MessageGeneral method verify.

public boolean verify() {
    if (!this.sender.verify(this.signature, this.dataBuf))
        return false;
    if (this.data instanceof WitnessMessageSignature) {
        WitnessMessageSignature witness = (WitnessMessageSignature) this.data;
        Signature witnessSignature = witness.getSignature();
        MessageID messageID = witness.getMessageId();
        return this.sender.verify(witnessSignature, messageID);
    } else {
        return true;
    }
}

Example 3 with WitnessMessageSignature

use of com.github.dedis.popstellar.model.network.method.message.data.message.WitnessMessageSignature in project popstellar by dedis.

the class MessageHandler method notifyLaoUpdate.

/**
 * Keep the UI up to date by notifying all observers the updated LAO state.
 *
 * <p>The LAO is updated if the channel of the message is a LAO channel and the message is not a
 * WitnessSignatureMessage.
 *
 * <p>If a LAO has been created or modified then the LAO lists in the LAORepository are updated.
 *
 * @param laoRepository the repository to access the LAO lists
 * @param data the data received
 * @param channel the channel of the message received
 */
private void notifyLaoUpdate(LAORepository laoRepository, Data data, Channel channel) {
    if (!(data instanceof WitnessMessageSignature) && channel.isLaoChannel()) {
        LAOState laoState = laoRepository.getLaoById().get(channel.extractLaoId());
        // Trigger an onNext
        laoState.publish();
        if (data instanceof StateLao || data instanceof CreateLao) {
            laoRepository.setAllLaoSubject();
        }
    }
}