def generate_msg(command, keyfile):
print("Generating message for '%s' using '%s' ..." % (command, keyfile))
# 0. Read private key from file
try:
with open(keyfile, 'rb') as f:
pri = rsa.PrivateKey.load_pkcs1(f.read(), "PEM")
except IOError:
print "Error: No such key file. "
sys.exit()
# 1. Check the validation of command
msg = ccpkt.build_msg(command)
# 2. sign message and base64 encode
cmdsig = rsa.sign(msg, pri, "SHA-256")
#with open('keys/mrpub.pem', 'rb') as pf:
# pub = rsa.PublicKey.load_pkcs1(pf.read(), "PEM")
#master = rsa.verify(msg, cmdsig, pub)
#if master:
# print("Verify sucess")
moo = slowaes.AESModeOfOperation()
mode, orig_len, cipher = moo.encrypt(msg, moo.modeOfOperation["CBC"], _aes_key, moo.aes.keySize["SIZE_128"], _iv)
cipher_str = str(bytearray(cipher))
message = str(len(cipher_str)).zfill(4) + cipher_str + str(orig_len).zfill(4) + str(cmdsig)
b64msg = base64.b64encode(message)
print "'", b64msg, "'"
def generate_msg(command, keyfile):
print ("Generating message for '%s' using '%s' ..." % (command, keyfile))
# 0. Read private key from file
try:
with open(keyfile, "rb") as f:
pri = rsa.PrivateKey.load_pkcs1(f.read(), "PEM")
except IOError:
print "Error: No such key file. "
sys.exit()
# 1. Check the validation of command
msg = ccpkt.build_msg(command)
# 2. sign message and base64 encode
cmdsig = rsa.sign(msg, pri, "SHA-256")
# with open('keys/mrpub.pem', 'rb') as pf:
# pub = rsa.PublicKey.load_pkcs1(pf.read(), "PEM")
# master = rsa.verify(msg, cmdsig, pub)
# if master:
# print("Verify sucess")
moo = slowaes.AESModeOfOperation()
mode, orig_len, cipher = moo.encrypt(msg, moo.modeOfOperation["CBC"], _aes_key, moo.aes.keySize["SIZE_128"], _iv)
cipher_str = str(bytearray(cipher))
message = str(len(cipher_str)).zfill(4) + cipher_str + str(orig_len).zfill(4) + str(cmdsig)
b64msg = base64.b64encode(message)
print "'", b64msg, "'"
def generate_signature(self, sender_private_key):
message = self.sender + self.recipient + str(self.value)
self.signature = sign(message.encode(), sender_private_key)
def sign(data, private_key):
signature = rsa.sign(data, private_key)
return base64.standard_b64encode(signature + data)