ecdsa topic
fastecdsa
Python library for fast elliptic curve crypto
BitcoinECDSA.php
PHP library to generate BTC addresses and signatures from private keys.
zkp-ecdsa
Proves knowledge of an ECDSA-P256 signature under one of many public keys that are stored in a list.
gotham-city
Gotham city is a fully functional project to demonstrate real-life example of minimalist Bitcoin decentralized HD wallet using 2 party ECDSA
threshold-signatures
Threshold Signature Scheme for ECDSA
jnacl
Pure Java implementation of curve25519, salsa20, hsalsa20, xsalsa20 and poly1305 cryptographic primitives, along with a NaCl "Box" implementation
dtls
Datagram Transport Layer Security (DTLS) client.
crypto
Elliptic Curve Cryptography and Common Public Key Cryptography Implementations
bitp0wn
Algorithms to re-compute a private key, to fake signatures and some other funny things with Bitcoin.