pingjunchen/cryptos

crypto utilities as a way of learning

cryptos

Just having fun

SHA-256

SHA-256 implementation following NIST FIPS 180-4 spec in cryptos/sha256.py. Pure Python, slow, trying to closely follow the document spec, obviously not to be used anywhere except for educational purposes.

$ echo "some test file lol" > testfile.txt
$ shasum -a 256 testfile.txt
4a79aed64097a0cd9e87f1e88e9ad771ddb5c5d762b3c3bbf02adf3112d5d375
$ python -m cryptos.sha256 testfile.txt
4a79aed64097a0cd9e87f1e88e9ad771ddb5c5d762b3c3bbf02adf3112d5d375

Keys

Bitcoin elliptic curve - compatible private keys can be generated using default system entropy with:

$ python -m cryptos.private_key
0x5748d05ca380dbebea56e135c7671dd4221b204271a9a87bb4d3f24afa64f0e0

Or to seed entropy directly from the user for generating the key:

$ python -m cryptos.private_key user
Enter some word #1/5: hi
Enter some word #2/5: there
Enter some word #3/5: lol
Enter some word #4/5: entropy!
Enter some word #5/5: cool
0xd2e21be9bdc05304b7dd4347e73d1a14009732780125db39a1eb7736d9be245

License

MIT