# yao garbled circuit evaluation v1. simple version based on smart

# yicong chen, dept of computing, imperial college, november 2018

import json # load

import sys # argv

import ot # alice, bob

import util # ClientSocket, log, ServerSocket

import yao # Circuit

import Alice

import Bob

# Alice is the circuit generator (client) __________________________________

def alice(filename):

file = open("out.txt", "a")

file.write("python3 " + sys.argv[0] + " " + sys.argv[1] + " " + sys.argv[2] + "\n\n")

file.close()

with open(filename) as json_file:

json_circuits = json.load(json_file)

a = Alice.Alice(json_circuits)

# Bob is the circuit evaluator (server) ____________________________________

def bob():

util.log(f'Bob: Listening ...')

file = open("out.txt", "w")

file.close()

b = Bob.Bob()

b.listen()

# local test of circuit generation and evaluation, no transfers_____________

def local_test(filename):

with open(filename) as json_file:

json_circuits = json.load(json_file)

for json_circuit in json_circuits['circuits']:

# print(json_circuit["name"])

name = json_circuit["name"]

a = yao.get_attribute(json_circuit, "alice", [])

b = yao.get_attribute(json_circuit, "bob", [])

out = json_circuit["out"]

cir = yao.AliceCircuits(name, a, b, out, json_circuit["gates"])

# cir.print_out()

# print(json_circuit["gates"])

pass

# gc_json = "json_out/circuit from Smart, figure 2.2, page 443.json"

gc_json = "json_out/AND gate.json"

with open(gc_json) as json_file:

json_circuits = json.load(json_file)

yao.BobCircuits(json_circuits)

# yao.Bob("json_out/AND gate.json")

# << removed >>

# main _____________________________________________________________________

def main():

behaviour = sys.argv[1]

if behaviour == 'alice':

alice(filename=sys.argv[2])

elif behaviour == 'bob':

bob()

elif behaviour == 'local':

local_test(filename=sys.argv[2])

if __name__ == '__main__':

main()

# __________________________________________________________________________