This repository stores all Sharemind MPC related utility scripts and notes.
Docker related files are in docker folder which is modified based on https://github.com/MPC-SoK/frameworks/blob/master/sharemind.
Sharemind only allows to pass in int, uint and bint series data types from command line. argument-stream-cipher.py encodes data to byte stream and bypasses this restriction. It supports all primitive data types.
python argument-stream-cipher.py <quad>*
The <quad> is formed by name, domain, type and value.
The output is byte stream.
Examples:
python argument-stream-cipher.py num pd_share3p uint64 100 > input.bin
python argument-stream-cipher.py arr pd_share3p uint64 [1,2] > input.bin
python argument-stream-cipher.py a pd_share3p uint64 [1,2] b pd_share3p uint64 [3,4] > input.bin
Then pass the byte stream as file to emulator.
sharemind-emulator <compiled_SecreC_program>.sb --cfile=input.bin
To decode emulator's output, argument-stream-decipher.py can be used.
sharemind-emulator <compiled_SecreC_program>.sb <input arguments> | python argument-stream-decipher.py