Add digital signatures to PDF documents - GUI and CLI, cross-platform
UFONet - Denial of Service Toolkit
Robust and flexible VPN network tunnelling
Implementation of the EDIINT AS2 protocol (RFC 4130)
The source code of the In-Browser-File-Encrypter web app
Powerful webdav client and sync tools with client-side AES encryption
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.
antigift is simple cross-platform, files & folders encryption tool
C++ cryptographic library (modern hash functions, ciphers, KDFs)
Centralized signing and verification
GMR digital signature system
Open Source PKI solutions
FIDO-enabled, cloud file encryption with centralized key management.
SCSI Tape Encryption Manager
Secure mail + Tor gateway