#### If it's fine, the bank with cash the check and add ####
#### the line to the right file ####
###################################################################
from fileUtils import FileUtils
from RSAtools import RSAtools
import os.path
import sys
fileutils = FileUtils()
rsatools = RSAtools()
#Making sure the arguments and the files are there
clientkey_file = open(sys.argv[2], 'r')
merchantkey_file = open(sys.argv[3], 'r')
#Getting client's key and merchant's original key
clientkey_original = fileutils.recupKey(sys.argv[2])
merchant_key_original = fileutils.recupKey(sys.argv[3])
#Getting client's key ciphered by the bank and bank's private key
clientkeybanqueciphered = []
clientkeybanqueciphered.append(fileutils.readKey(sys.argv[1],2))
clientkeybanqueciphered.append(fileutils.readKey(sys.argv[1],3))
bank_publickey = fileutils.recupKey('banquePk')
#Deciphering the client's key
clientkey_deciphered = [rsatools.decryptblock(bank_publickey, clientkeybanqueciphered[0]), rsatools.decryptblock(bank_publickey, clientkeybanqueciphered[1])]
#Verification
if( clientkey_deciphered != clientkey_original):
print("La clé du client dans le chèque n'est pas la même que celle fournie !\n")
clientpk = open('clientPk','w')
clientpk.write(str(rsaClient [0])+' '+str(rsaClient [1]))
clientpk.close()
clientsk = open('clientSk','w')
clientsk.write(str(rsaClient [0])+' '+str(rsaClient [2]))
clientsk.close()
commercantpk = open('commercantPk','w')
commercantpk.write(str(rsaCommercant [0])+' '+str(rsaCommercant [1]))
commercantpk.close()
commercantsk = open('commercantSk','w')
commercantsk.write(str(rsaCommercant [0])+' '+str(rsaCommercant [2]))
commercantsk.close()
banquepk = open('banquePk','w')
banquepk.write(str(rsaBanque [0])+' '+str(rsaBanque [1]))
banquepk.close()
banquesk = open('banqueSk','w')
banquesk.write(str(rsaBanque [0])+' '+ str(rsaBanque [2]))
banquesk.close()
print([rsaClient [0],rsaClient[1]])
# Cryptage de la clé publique du client par la clé secrete de la banque
# Test des fonctions de cryptage et decryptage par bloc
clientpkencode = rsa.cryptblock(fileUtil.recupKey('banqueSk'), rsaClient [0])
clientpkdecode = rsa.decryptblock(fileUtil.recupKey('banquePk'), clientpkencode)
clientpkencode2 = rsa.cryptblock(fileUtil.recupKey('banqueSk'), rsaClient [1])
clientpkdecode2 = rsa.decryptblock(fileUtil.recupKey('banquePk'), clientpkencode2)
fileUtil.writeContent(fileUtil.formatKey(clientpkencode) + '\n' + fileUtil.formatKey(clientpkencode2), "clientPkEncode")
print ([clientpkdecode,clientpkdecode2])
if( len(sys.argv) < 4 ):
print("You need to put all of the arguments (invoice file, signed check and client's Pk)")
sys.exit()
# file opening
try:
invoice_file = open(sys.argv[1], 'r')
signedcheck_file = open(sys.argv[2], 'r')
except (OSError, IOError) as error:
print("Error reading file : ", error)
sys.exit()
fileutils = FileUtils()
rsatools = RSAtools()
#Getting the infos from the files
clepub_client = fileutils.recupKey(sys.argv[3])
facture = Facture(sys.argv[1])
clepub_merchant_original = fileutils.recupKey("commercantPk")
bankPk = fileutils.recupKey("banquePk")
merchantkeyclientciphered = []
clientkeybanqueciphered = []
merchantkeyclientciphered.append( fileutils.readKey(sys.argv[2],0))
merchantkeyclientciphered.append( fileutils.readKey(sys.argv[2],1))
clientkeybanqueciphered.append(fileutils.readKey(sys.argv[2],2))
clientkeybanqueciphered.append(fileutils.readKey(sys.argv[2],3))
uid_ciphered = fileutils.readKey(sys.argv[2],4)
