Similar to Poderosa

Bitmessage

Cryptomator

CrypTool

Dropbear (software)

EncFS

Encrypting File System

FileVault

Check Point VPN-1

Hyphanet

Genode

GNUnet

LogMeIn Hamachi

Hushmail

I2P

Jami (software)

John the Ripper

LibreSSL

Linux Unified Key Setup

Microsoft Outlook

NaCl (software)

Network Security Services

Openswan

OpenVPN

Ophcrack