WinSCP is a free SFTP, SCP, S3, WebDAV, and FTP client for Windows.
For full, incremental, compressed and encrypted backups or archives
edit and replay captured network traffic
Implementation of GlobalPlatform smart card specification
C++ cryptographic library (modern hash functions, ciphers, KDFs)
The safest way to store private data in untrusted (cloud) environments
Powerful webdav client and sync tools with client-side AES encryption
antigift is simple cross-platform, files & folders encryption tool
52 Hash Functions In One Program, plus each with HMAC or KMAC
Pioneering Private and Public Cloud Management since 2008
GILIB Large Integer Arithmetic Library
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
Another way of user substitution on unixoid systems
Hexadecimal and raw packet injector and sniffer.
Reveal Rootkit detects processes hidden by rootkits on POSIX systems.
Programa de Criptografia.