ecdh topic
libVES.c
VESvault End-to-End Encryption API: Encrypt Everything Without Fear of Losing the Key
phpseclib
PHP Secure Communications Library
Practical-Cryptography-for-Developers-Book
Practical Cryptography for Developers: Hashes, MAC, Key Derivation, DHKE, Symmetric and Asymmetric Ciphers, Public Key Cryptosystems, RSA, Elliptic Curves, ECC, secp256k1, ECDH, ECIES, Digital Signatu...
swift-crypto
Open-source implementation of a substantial portion of the API of Apple CryptoKit suitable for use on Linux platforms.
noble-secp256k1
Fastest 4KB JS implementation of secp256k1 signatures and ECDH
python-ecdsa
pure-python ECDSA signature/verification and ECDH key agreement
GMObjC
SM2/SM3/SM4/ECDH crypto library based on OpenSSL.
tiny-ECDH-c
Small portable Elliptic-Curve Diffie-Hellman in C
toyecc
Elliptic Curve Cryptography playground/toolkit written in pure Python