binary.py 1.2 KB

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  1. #!/usr/bin/env python3
  2. # Contest Management System - http://cms-dev.github.io/
  3. # Copyright © 2018 Luca Wehrstedt <luca.wehrstedt@gmail.com>
  4. # Copyright © 2018 Stefano Maggiolo <s.maggiolo@gmail.com>
  5. #
  6. # This program is free software: you can redistribute it and/or modify
  7. # it under the terms of the GNU Affero General Public License as
  8. # published by the Free Software Foundation, either version 3 of the
  9. # License, or (at your option) any later version.
  10. #
  11. # This program is distributed in the hope that it will be useful,
  12. # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. # GNU Affero General Public License for more details.
  15. #
  16. # You should have received a copy of the GNU Affero General Public License
  17. # along with this program. If not, see <http://www.gnu.org/licenses/>.
  18. import binascii
  19. __all__ = [
  20. "bin_to_hex", "hex_to_bin", "bin_to_b64", "b64_to_bin",
  21. ]
  22. def bin_to_hex(bin):
  23. return binascii.b2a_hex(bin).decode('ascii')
  24. def hex_to_bin(hex):
  25. return binascii.a2b_hex(hex.encode('ascii'))
  26. def bin_to_b64(bin):
  27. return binascii.b2a_base64(bin, newline=False).decode('ascii')
  28. def b64_to_bin(b64):
  29. return binascii.a2b_base64(b64.encode('ascii'))