RSA_Subprocess.py

from Crypto.PublicKey import RSA
from Crypto.Cipher import PKCS1_v1_5, PKCS1_OAEP
from base64 import b64decode
from Crypto.Hash import SHA
from Crypto import Random
import subprocess
import sys
def decrypt_RSA(privkey,message):
    key = open(privkey, "r").read()
    dsize = SHA.digest_size
    sentinel = Random.new().read(15+dsize)
    rsakey = RSA.importKey(key)
    rsakey = PKCS1_v1_5.new(rsakey)
    decrypted = rsakey.decrypt(b64decode(message), None)
    return decrypted
#print decrypt_RSA('priv.key', sys.argv[1])
if __name__ == '__main__':
    f = open('possiblekeys', 'r')
    pqde = []
    for i in f:
        d = {}
        # print i
        l = i.split(',')
        d['p'] = l[0]
        d['q'] = l[1]
        d['n'] = l[2]
        d['e'] = l[3]
        pqde.append(d)
    c = 0
    for d in pqde:
        subprocess.check_output(["rsatool/rsatool.py", '-p', '%s' % d['p'], '-q', '%s' % d['q'], '-e', '%s' % d['e'], '-o', 'privkeys/priv%d.key' % c])
        try:
            print decrypt_RSA('privkeys/priv%d.key' % c, sys.argv[1])
        except Exception as e:
            print e
        c += 1