| #!/usr/bin/env python3 |
| |
| # Command line tool to compute or verify EID (eUICC ID) values |
| # |
| # (C) 2024 by Harald Welte <laforge@osmocom.org> |
| # |
| # This program 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 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program 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 |
| import argparse |
| |
| from pySim.euicc import compute_eid_checksum, verify_eid_checksum |
| |
| |
| option_parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter, |
| description="""pySim EID Tool |
| This utility program can be used to compute or verify the checksum of an EID |
| (eUICC Identifier). See GSMA SGP.29 for the algorithm details. |
| |
| Example (verification): |
| $ eidtool.py --verify 89882119900000000000000000001654 |
| EID checksum verified successfully |
| |
| Example (generation, passing first 30 digits): |
| $ eidtool.py --compute 898821199000000000000000000016 |
| 89882119900000000000000000001654 |
| |
| Example (generation, passing all 32 digits): |
| $ eidtool.py --compute 89882119900000000000000000001600 |
| 89882119900000000000000000001654 |
| |
| Example (generation, specifying base 30 digits and number to add): |
| $ eidtool.py --compute 898821199000000000000000000000 --add 16 |
| 89882119900000000000000000001654 |
| """) |
| group = option_parser.add_mutually_exclusive_group(required=True) |
| group.add_argument('--verify', help='Verify given EID csum') |
| group.add_argument('--compute', help='Generate EID csum') |
| option_parser.add_argument('--add', type=int, help='Add value to EID base before computing') |
| |
| |
| if __name__ == '__main__': |
| opts = option_parser.parse_args() |
| |
| if opts.verify: |
| res = verify_eid_checksum(opts.verify) |
| if res: |
| print("EID checksum verified successfully") |
| sys.exit(0) |
| else: |
| print("EID checksum invalid") |
| sys.exit(1) |
| elif opts.compute: |
| eid = opts.compute |
| if opts.add: |
| if len(eid) != 30: |
| print("EID base must be 30 digits when using --add") |
| sys.exit(2) |
| eid = str(int(eid) + int(opts.add)) |
| res = compute_eid_checksum(eid) |
| print(res) |
| |