An implementation of the IETF QUIC protocol
For full, incremental, compressed and encrypted backups or archives
UFONet - Denial of Service Toolkit
antigift is simple cross-platform, files & folders encryption tool
Robust and flexible VPN network tunnelling
Encrypt and manage secret text data
Anubis Involutional 128-bit SPN Block cipher Encryption Tool
C++ cryptographic library (modern hash functions, ciphers, KDFs)
SLS Team Java Library
The best cryptography playground available
Open Source PKI solutions
FIDO strong authentication, encryption, digital signature engine
FIDO-enabled, cloud file encryption with centralized key management.
PKI & Card Management System to issue and manage tokens & certificates
[WARNING] Project has moved to http://github.com/Retroshare/Retroshare
Encrypting, anonymous, unlimited size message transfer system
CryptoDock is a tool that hosts various crypto. algorithms.