def _verify_signature(self):
"""Verify existing signature.
Overwrite the method if you need more than one signature.
"""
if not self.signature: # fail if object has no signature attribute
self.validation_text = "No signature found."
return False
message = crypto.get_bytes(self._get_information_for_hashing())
result = crypto.verify(message, self.signature,
key_utils.bytes_to_rsa(self.sender_pubkey))
if not result:
self.validation_text = "Signature not valid"
return False
self.validation_text = "valid"
return True
def _create_patient_signature(self, private_key):
if self.patient_signature:
logger.debug("Patient signature exists. Quit signing process.")
return
print(str(self))
print("Patient, do you want to sign the vaccination? (Y/N): ")
reply = sys.stdin.read(1)
reply = str(reply).lower()
if reply == "n":
print("Aborting...")
return None
elif reply == "y":
message = crypto.get_bytes(
self._get_information_for_hashing(False))
return crypto.sign(message, private_key)
else:
print("No valid input. Abort...")
return None
def _create_signature(self, private_key):
message = crypto.get_bytes(self._get_information_for_hashing())
return crypto.sign(message, private_key)
def _create_doctor_signature(self, private_key):
if self.doctor_signature:
logger.debug("Doctor signature exists. Quit signing process.")
return
message = crypto.get_bytes(self._get_information_for_hashing(True))
return crypto.sign(message, private_key)
def _verify_patient_signature(self, pub_key):
message = crypto.get_bytes(self._get_information_for_hashing(False))
return crypto.verify(message, self.patient_signature, pub_key)
def _verify_doctor_signature(self, pub_key):
message = crypto.get_bytes(self._get_information_for_hashing(True))
return crypto.verify(message, self.doctor_signature, pub_key)