Robust and flexible VPN network tunnelling
UFONet - Denial of Service Toolkit
Provides encryption & password hashing for your app or Hibernate POJOs
cross-platform, encryption application
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
Centralized signing and verification
GMR digital signature system
Open Source PKI solutions
A bespoke symmetric cipher.
SCSI Tape Encryption Manager
Secure mail + Tor gateway
Truecrypt Ported to wxGTK3
Crypt encryption and decryption is based on ASCII Table Shift.