https://blog.costan.ro/tags/discrete-logarithm/ Recent content in Discrete-Logarithm on Decentralized meta-learning Hugo en Wed, 19 Jun 2019 00:00:00 +0000 https://blog.costan.ro/post/2019-06-19-schnorr/ Wed, 19 Jun 2019 00:00:00 +0000 https://blog.costan.ro/post/2019-06-19-schnorr/ <p><a href="https://en.wikipedia.org/wiki/Schnorr_signature">Schnorr</a> is another digital signature scheme known for its simplicity, no division, no inversion, just plain old multiplication. Here is my simple 16 lines implementation in Python.</p> https://blog.costan.ro/post/2019-04-09-ecdsa/ Tue, 09 Apr 2019 00:00:00 +0000 https://blog.costan.ro/post/2019-04-09-ecdsa/ <p>Elliptic curve cryptography (<a href="https://en.wikipedia.org/wiki/Elliptic-curve_cryptography">ECC</a>) and digital signature algorithm (<a href="https://en.wikipedia.org/wiki/Elliptic_Curve_Digital_Signature_Algorithm">ECDSA</a>) are more complex than RSA or ElGamal but I will try my best to hide the hairy math and the implementation details.</p> https://blog.costan.ro/post/2019-03-26-elgamal/ Tue, 26 Mar 2019 00:00:00 +0000 https://blog.costan.ro/post/2019-03-26-elgamal/ <p>ElGamal is a public key cryptosystem that is used in <a href="https://en.wikipedia.org/wiki/ElGamal_encryption">encryption</a> , <a href="https://en.wikipedia.org/wiki/ElGamal_signature_scheme">digital signature</a> and homomorphic cryptography.</p> <p>Here is my take in 12 lines of Python code:</p>