Examples of org.keyczar.interfaces.SigningStream.initSign()

Class org.keyczar.interfaces.SigningStream

Examples of org.keyczar.interfaces.SigningStream.initSign()

org.keyczar.interfaces.SigningStream.initSign()
Initializes this stream for signing. @throws KeyczarException If any Java JCE errors occur

    }


    ByteBuffer header = ByteBuffer.allocate(HEADER_SIZE);
    signingKey.copyHeader(header);
    header.rewind();
    stream.initSign();


    // Sign the header and write it to the output buffer
    output.mark();
    output.put(header);

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    int spaceNeeded = digestSize();
    if (output.capacity() < spaceNeeded) {
      throw new ShortBufferException(output.capacity(), spaceNeeded);
    }


    stream.initSign();
    // Sign the header and write it to the output buffer
    output.mark();
    // Sign the input data
    stream.updateSign(input);
    // Write the signature to the output

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    if (cryptStream == null) {
      cryptStream = (EncryptingStream) encryptingKey.getStream();
    }
    // Initialize the signing stream
    SigningStream signStream = cryptStream.getSigningStream();
    signStream.initSign();


    // Write the key header
    output.mark();
    ByteBuffer outputToSign = output.asReadOnlyBuffer();
    encryptingKey.copyHeader(output);

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    }


    ByteBuffer header = ByteBuffer.allocate(HEADER_SIZE);
    signingKey.copyHeader(header);
    header.rewind();
    stream.initSign();


    // Sign the header and write it to the output buffer
    output.mark();
    output.put(header);

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    if (stream == null) {
      // If not, allocate a new stream object.
      stream = (SigningStream) signingKey.getStream();
    }


    stream.initSign();
    // Attached signature signs:
    // [blob | hidden.length | hidden | format] or [blob | 0 | format]
    byte[] hiddenPlusLength = Util.fromInt(0);
    if (hidden.length > 0) {
      hiddenPlusLength = Util.lenPrefix(hidden);

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