monocypher

Monocypher is an easy to use cryptographic library. It provides functions for authenticated encryption, hashing, password hashing and key derivation, key exchange, and public key signatures. It is: - Small. Monocypher contains under 2000 lines of code, small enough to allow audits. The binaries can be under 50KB, small enough for many embedded targets. - Easy to deploy. Just add monocypher.c and monocypher.h to your project. They compile as C99 or C++ and are dedicated to the public domain (CC0-1.0, alternatively 2-clause BSD). - Portable. There are no dependencies, not even on libc. - Honest. The API is small, consistent, and cannot fail on correct input. - Direct. The abstractions are minimal. A developer with experience in applied cryptography can be productive in minutes. - Fast. The primitives are fast to begin with, and performance wasn't needlessly sacrificed. Monocypher holds up pretty well against Libsodium, despite being closer in size to TweetNaCl.

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