HElib is an open-source software library that implements homomorphic encryption. It supports the BGV scheme with bootstrapping and the Approximate Number CKKS scheme. HElib also includes optimizations for efficient homomorphic evaluation, focusing on effective use of ciphertext packing techniques and on the Gentry-Halevi-Smart optimizations.

Synopse mORMot 1 ORM/SOA/MVC framework - Please upgrade to mORMot 2 !

A Linux Ransomware

Advanced crypto library for the Go language

Bitcoin Core RPC compatible, battle-tested .NET library and RPC wrapper for Bitcoin and Altcoins

Rust Post-Quantum cryptography

Pure Java implementation of EdDSA

Nim cryptographic library

dude, is my code constant time?

The SIMON and SPECK families of lightweight block ciphers. #nsacyber

Cryptographic api for Clojure

Highly modular & configurable hash & crypto library

Pure Java implementation of Macaroons: Cookies with Contextual Caveats for Decentralized Authorization in the Cloud. Android ready. Online playground available. Project is STALE

Security framework for building multi-user end-to-end encrypted data storage and sharing/processing with zero leakage risks from storage and transport infrastructure.

Javascript implementation of Macaroons: Cookies with Contextual Caveats for Decentralized Authorization in the Cloud.

Cryptography library for modern C++.

Collection of password hashers.

Spritz encryption system portable C library, CSPRNG, cryptographic hash and MAC functions, symmetric-key data encryption, and general-purpose functions. It's also an Arduino library.

GoUrl.io Crypto Payment Gateway for Laravel

Classical ciphers: Caesar, ADFGX, ROT13 and etc.