Paillier | Paillier Homomorphic Addition Public Key Cryptosystem | Cryptography library

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I feel a bit dumb asking this since there are a lot of similar questions, but I've honestly searched around a lot and could not find a solution for this. Here goes:

I have a Python package (on TestPyPi, here is the source code, note that it uses and needs python3.8) with the following structure:

I'm very new to nodejs. For a while I've been working with paillier-js module which returns a object typeof() of this nature: Integer { value: 340895965n }. Is there a schema that can allow for appropriate storage of this Object with mongoose. I have tried passing the Object directly to mongodb which is successful but when I view it using the MongoDB compass, I get empty { }

I want to call the functions of paillier library (http://acsc.cs.utexas.edu/) in C++ environment. I found out the helpful site (Typedef function with void * pointer) and followed the comment answered Feb 10 '15 at 12:40 from Niemand. But, my code output error messages as follows.

I appreciate your any comments to solve the problems. My detail procedures is as follows.

1. Compiling and installing gmp library (with default option)

   • gmp.h is generated in /usr/local/include
   • libgmp.a, libgmp.so, libgmp.la, etc are generated in /usr/local/lib

2. Compiling and installing paillier library (with default option)

   • paillier.h is generated in /usr/local/include
   • libpaillier.a is generated in /usr/local/lib

3. Sample code for paillier library test

1. Setting properties for project in eclipse to use libraries

   In [Properties] - [C/C++ Build] - [Settings] - [Tool Settings],

   • [GCC C++ Compiler] - [includes] - [Include paths] : input "/usr/local/include"
   • [GCC C Compiler] - [includes] - [Include paths] : input "/usr/local/include"
   • [GCC C++ Linker] - [Libraries] - [Library search path] : input "/usr/local/lib"
   • [GCC C++ Linker] - [Libraries] - [Libraries] : input "gmp", "paillier"

My environment's version is as follows

• ubuntu : 18.04.2
• eclipse : 2019-03
• gmp : 6.1.2
• paillier : 0.8

I have tried to encrypt an image using paillier. But I can't decrypt it. Please help me to findout.

I use paillier cryptosystem to encrypt and decrypt random data which at first are in the form of byte arrays and then i transform them to big integers and if the byte array become a negative big integer the decrypted number and the input number are different (basically it doesn't work with negative big integers). Is there a way to make this work without checking the input if it will become positive or negative ?

I have a numpy ndarray of size 112 * 92. This is basically a grayscale image read usingcv2.imread. Since its grayscale so its maximum value is 255.

I am trying to encrypt this array using the phe paillier library: http://python-paillier.readthedocs.io/en/stable/usage.html#role-1

But I get an error when I run the public_key.encrypt() command:

I'm trying to build a UDF library using rake:

I am trying to use this Paillier libray http://acsc.cs.utexas.edu/libpaillier/ , it will be just a part of some UDF that i m trying to make for Mysql server

This a part from my Rakefile: