Open-source implementation of a substantial portion of the API of Apple CryptoKit suitable for use on all Swift supported platforms.
CIRCL: Cloudflare Interoperable Reusable Cryptographic Library
A pure-Rust implementation of group operations on Ristretto and Curve25519
Libraries for finite field, elliptic curve, and polynomial arithmetic
Collection of pure Rust elliptic curve implementations: NIST P-224, P-256, P-384, P-521, secp256k1, SM2
gnark-crypto provides elliptic curve and pairing-based cryptography on BN, BLS12, BLS24 and BW6 curves. It also provides various algorithms (algebra, crypto) of particular interest to zero knowledge proof systems
Constantine: modular, high-performance, zero-dependency cryptography stack for verifiable computation, proof systems and blockchain protocols.