https://johannes-bauer.com/compsci/ecc/ https://johannes-bauer.com/compsci/ecc/
https://github.com/johndoe31415/joeecc
https://pypi.org/project/tinyec/ https://pypi.org/project/ecdsa/
https://github.com/starkbank/ecdsa-python
http://cslashm.github.io/ECPy/
https://www.rubydoc.info/gems/ecc/0.1.3/Ecc/Point
!!! great book on ecc crytpo !!!
https://onyb.gitbook.io/secp256k1-python/introduction https://onyb.gitbook.io/secp256k1-python/galois-fields https://onyb.gitbook.io/secp256k1-python/group-theory https://onyb.gitbook.io/secp256k1-python/point-addition-in-python https://onyb.gitbook.io/secp256k1-python/scalar-multiplication-in-python https://onyb.gitbook.io/secp256k1-python/ecdsa source: https://gist.github.com/onyb/cf795c819fdf8aa6015de2772fde24de
https://cryptobook.nakov.com/digital-signatures/ecdsa-sign-verify-messages https://cryptobook.nakov.com/digital-signatures/ecdsa-sign-verify-examples