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

Example 1 with AttachmentCipherOutputStreamFactory

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

the class SignalServiceMessageSender method createAttachmentPointer.

private AttachmentPointer createAttachmentPointer(SignalServiceAttachmentStream attachment) throws IOException {
    byte[] attachmentKey = Util.getSecretBytes(64);
    long paddedLength = PaddingInputStream.getPaddedSize(attachment.getLength());
    long ciphertextLength = AttachmentCipherOutputStream.getCiphertextLength(paddedLength);
    PushAttachmentData attachmentData = new PushAttachmentData(attachment.getContentType(), new PaddingInputStream(attachment.getInputStream(), attachment.getLength()), ciphertextLength, new AttachmentCipherOutputStreamFactory(attachmentKey), attachment.getListener());
    Pair<Long, byte[]> attachmentIdAndDigest = socket.sendAttachment(attachmentData);
    AttachmentPointer.Builder builder = AttachmentPointer.newBuilder().setContentType(attachment.getContentType()).setId(attachmentIdAndDigest.first()).setKey(ByteString.copyFrom(attachmentKey)).setDigest(ByteString.copyFrom(attachmentIdAndDigest.second())).setSize((int) attachment.getLength());
    if (attachment.getFileName().isPresent()) {
        builder.setFileName(attachment.getFileName().get());
    }
    if (attachment.getPreview().isPresent()) {
        builder.setThumbnail(ByteString.copyFrom(attachment.getPreview().get()));
    }
    if (attachment.getWidth() > 0) {
        builder.setWidth(attachment.getWidth());
    }
    if (attachment.getHeight() > 0) {
        builder.setHeight(attachment.getHeight());
    }
    if (attachment.getVoiceNote()) {
        builder.setFlags(AttachmentPointer.Flags.VOICE_MESSAGE_VALUE);
    }
    return builder.build();
}

Example 2 with AttachmentCipherOutputStreamFactory

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

the class SignalServiceMessageSender method uploadAttachment.

public SignalServiceAttachmentPointer uploadAttachment(SignalServiceAttachmentStream attachment) throws IOException {
    byte[] attachmentKey = attachment.getResumableUploadSpec().transform(ResumableUploadSpec::getSecretKey).or(() -> Util.getSecretBytes(64));
    byte[] attachmentIV = attachment.getResumableUploadSpec().transform(ResumableUploadSpec::getIV).or(() -> Util.getSecretBytes(16));
    long paddedLength = PaddingInputStream.getPaddedSize(attachment.getLength());
    InputStream dataStream = new PaddingInputStream(attachment.getInputStream(), attachment.getLength());
    long ciphertextLength = AttachmentCipherOutputStream.getCiphertextLength(paddedLength);
    PushAttachmentData attachmentData = new PushAttachmentData(attachment.getContentType(), dataStream, ciphertextLength, new AttachmentCipherOutputStreamFactory(attachmentKey, attachmentIV), attachment.getListener(), attachment.getCancelationSignal(), attachment.getResumableUploadSpec().orNull());
    if (attachment.getResumableUploadSpec().isPresent()) {
        return uploadAttachmentV3(attachment, attachmentKey, attachmentData);
    } else {
        return uploadAttachmentV2(attachment, attachmentKey, attachmentData);
    }
}

Example 3 with AttachmentCipherOutputStreamFactory

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

the class AttachmentCipherTest method attachment_encryptDecryptPaddedContent.

@Test
public void attachment_encryptDecryptPaddedContent() throws IOException, InvalidMessageException {
    int[] lengths = { 531, 600, 724, 1019, 1024 };
    for (int length : lengths) {
        byte[] plaintextInput = new byte[length];
        for (int i = 0; i < length; i++) {
            plaintextInput[i] = (byte) 0x97;
        }
        byte[] key = Util.getSecretBytes(64);
        ByteArrayInputStream inputStream = new ByteArrayInputStream(plaintextInput);
        InputStream dataStream = new PaddingInputStream(inputStream, length);
        ByteArrayOutputStream encryptedStream = new ByteArrayOutputStream();
        DigestingOutputStream digestStream = new AttachmentCipherOutputStreamFactory(key, null).createFor(encryptedStream);
        Util.copy(dataStream, digestStream);
        digestStream.flush();
        byte[] digest = digestStream.getTransmittedDigest();
        byte[] encryptedData = encryptedStream.toByteArray();
        encryptedStream.close();
        inputStream.close();
        File cipherFile = writeToFile(encryptedData);
        InputStream decryptedStream = AttachmentCipherInputStream.createForAttachment(cipherFile, length, key, digest);
        byte[] plaintextOutput = readInputStreamFully(decryptedStream);
        assertArrayEquals(plaintextInput, plaintextOutput);
        cipherFile.delete();
    }
}