A modern, portable, easy to use crypto library
CLI wrapper around aws-encryption-sdk-python
Qtum Core Wallet
WinSCP is a free SFTP, SCP, S3, WebDAV, and FTP client for Windows.
Open source disk encryption with strong security for the Paranoid
Popular easy-to-use and secure password manager
Add digital signatures to PDF documents - GUI and CLI, cross-platform
Professional password generator and manager with full Unicode support
For full, incremental, compressed and encrypted backups or archives
GnuPG 2.2, 2.3 and 2.4 distributions for OS X / macOS
Implementation of the EDIINT AS2 protocol (RFC 4130)
DENUVO (VMProtect 2.6x) VM research tool
Sign PDF with Digital Signature Software. Batch PDF Sign. DSC Signer.
FIDO® Certified StrongKey FIDO Server (SKFS)
UFONet - Denial of Service Toolkit
PGP graphical user interface
Encrypted volumes through command line
Encrypt and manage secret text data