Powerful webdav client and sync tools with client-side AES encryption
The source code of the In-Browser-File-Encrypter web app
antigift is simple cross-platform, files & folders encryption tool
57 Hash Functions In One Program, plus each with HMAC or KMAC
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Bug-fix-only libev port of shadowsocks
A flat-file database program written in bash shell and awk scripts.
Secure mail + Tor gateway