Examples with PushTransportDetails org.whispersystems.signalservice.internal.push.PushTransportDetails used on opensource projects

Example 6 with PushTransportDetails

use of org.whispersystems.signalservice.internal.push.PushTransportDetails in project Signal-Android by WhisperSystems.

the class SignalServiceCipher method encryptForGroup.

public byte[] encryptForGroup(DistributionId distributionId, List<SignalProtocolAddress> destinations, SenderCertificate senderCertificate, byte[] unpaddedMessage, ContentHint contentHint, byte[] groupId) throws NoSessionException, UntrustedIdentityException, InvalidKeyException, InvalidRegistrationIdException {
    PushTransportDetails transport = new PushTransportDetails();
    SignalProtocolAddress localProtocolAddress = new SignalProtocolAddress(localAddress.getIdentifier(), localDeviceId);
    SignalGroupCipher groupCipher = new SignalGroupCipher(sessionLock, new GroupCipher(signalProtocolStore, localProtocolAddress));
    SignalSealedSessionCipher sessionCipher = new SignalSealedSessionCipher(sessionLock, new SealedSessionCipher(signalProtocolStore, localAddress.getServiceId().uuid(), localAddress.getNumber().orNull(), localDeviceId));
    CiphertextMessage message = groupCipher.encrypt(distributionId.asUuid(), transport.getPaddedMessageBody(unpaddedMessage));
    UnidentifiedSenderMessageContent messageContent = new UnidentifiedSenderMessageContent(message, senderCertificate, contentHint.getType(), Optional.of(groupId));
    return sessionCipher.multiRecipientEncrypt(destinations, messageContent);
}

Example 7 with PushTransportDetails

use of org.whispersystems.signalservice.internal.push.PushTransportDetails in project libsignal-service-java by signalapp.

the class SignalServiceCipher method decrypt.

private Plaintext decrypt(SignalServiceEnvelope envelope, byte[] ciphertext) throws InvalidMetadataMessageException, InvalidMetadataVersionException, ProtocolDuplicateMessageException, ProtocolUntrustedIdentityException, ProtocolLegacyMessageException, ProtocolInvalidKeyException, ProtocolInvalidVersionException, ProtocolInvalidMessageException, ProtocolInvalidKeyIdException, ProtocolNoSessionException, SelfSendException {
    try {
        byte[] paddedMessage;
        Metadata metadata;
        int sessionVersion;
        if (!envelope.hasSource() && !envelope.isUnidentifiedSender()) {
            throw new ProtocolInvalidMessageException(new InvalidMessageException("Non-UD envelope is missing a source!"), null, 0);
        }
        if (envelope.isPreKeySignalMessage()) {
            SignalProtocolAddress sourceAddress = getPreferredProtocolAddress(signalProtocolStore, envelope.getSourceAddress(), envelope.getSourceDevice());
            SessionCipher sessionCipher = new SessionCipher(signalProtocolStore, sourceAddress);
            paddedMessage = sessionCipher.decrypt(new PreKeySignalMessage(ciphertext));
            metadata = new Metadata(envelope.getSourceAddress(), envelope.getSourceDevice(), envelope.getTimestamp(), false);
            sessionVersion = sessionCipher.getSessionVersion();
        } else if (envelope.isSignalMessage()) {
            SignalProtocolAddress sourceAddress = getPreferredProtocolAddress(signalProtocolStore, envelope.getSourceAddress(), envelope.getSourceDevice());
            SessionCipher sessionCipher = new SessionCipher(signalProtocolStore, sourceAddress);
            paddedMessage = sessionCipher.decrypt(new SignalMessage(ciphertext));
            metadata = new Metadata(envelope.getSourceAddress(), envelope.getSourceDevice(), envelope.getTimestamp(), false);
            sessionVersion = sessionCipher.getSessionVersion();
        } else if (envelope.isUnidentifiedSender()) {
            SealedSessionCipher sealedSessionCipher = new SealedSessionCipher(signalProtocolStore, localAddress.getUuid().orNull(), localAddress.getNumber().orNull(), 1);
            DecryptionResult result = sealedSessionCipher.decrypt(certificateValidator, ciphertext, envelope.getServerTimestamp());
            SignalServiceAddress resultAddress = new SignalServiceAddress(UuidUtil.parse(result.getSenderUuid().orNull()), result.getSenderE164());
            SignalProtocolAddress protocolAddress = getPreferredProtocolAddress(signalProtocolStore, resultAddress, result.getDeviceId());
            paddedMessage = result.getPaddedMessage();
            metadata = new Metadata(resultAddress, result.getDeviceId(), envelope.getTimestamp(), true);
            sessionVersion = sealedSessionCipher.getSessionVersion(protocolAddress);
        } else {
            throw new InvalidMetadataMessageException("Unknown type: " + envelope.getType());
        }
        PushTransportDetails transportDetails = new PushTransportDetails(sessionVersion);
        byte[] data = transportDetails.getStrippedPaddingMessageBody(paddedMessage);
        return new Plaintext(metadata, data);
    } catch (DuplicateMessageException e) {
        throw new ProtocolDuplicateMessageException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (LegacyMessageException e) {
        throw new ProtocolLegacyMessageException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidMessageException e) {
        throw new ProtocolInvalidMessageException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidKeyIdException e) {
        throw new ProtocolInvalidKeyIdException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidKeyException e) {
        throw new ProtocolInvalidKeyException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (UntrustedIdentityException e) {
        throw new ProtocolUntrustedIdentityException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidVersionException e) {
        throw new ProtocolInvalidVersionException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (NoSessionException e) {
        throw new ProtocolNoSessionException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    }
}