For full, incremental, compressed and encrypted backups or archives
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
Powerful webdav client and sync tools with client-side AES encryption
C++ cryptographic library (modern hash functions, ciphers, KDFs)
The source code of the In-Browser-File-Encrypter web app
antigift is simple cross-platform, files & folders encryption tool
Robust and flexible VPN network tunnelling
52 Hash Functions In One Program, plus each with HMAC or KMAC
Multi hash crack suite
Base64 encode (or decode) files of any type with this lightweight tool
Secure mail + Tor gateway
RSA 4096 C++ library