Astroport.ONE/venv/lib/python3.11/site-packages/examples/load_binary_signed_message.py

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2024-03-01 16:15:45 +01:00
# Copyright 2014-2024 Vincent Texier <vit@free.fr>
#
# DuniterPy is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# DuniterPy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import sys
from duniterpy.key import VerifyingKey
def load_binary_signed_message(signed_message_path=None):
if not signed_message_path:
if len(sys.argv) < 2:
print("Usage: python verify_signed_message.py SIGNED_MESSAGE_FILEPATH")
return
# capture signed message filepath argument
signed_message_path = sys.argv[1]
# ask public key of the signer
pubkeyBase58 = input("Enter public key of the message issuer: ")
# open signed message file
with open(signed_message_path, "rb") as file_handler:
signed_message = file_handler.read()
# Verify the message!
verifier = VerifyingKey(pubkeyBase58)
try:
message = verifier.get_verified_data(signed_message).decode("utf-8")
print("Signature valid for this message:")
except ValueError as error:
message = str(error)
print(message)
if __name__ == "__main__":
load_binary_signed_message()