Open Source PKI solutions
FIDO strong authentication, encryption, digital signature engine
Online Certificate Status Protocol with php
Secure login system for php frameworks, applications ansd sites
CrococryptQuerl is a web-based file encryption & transfer tool
Anoncrypt-Text Encryption and Decryption Website in Java(Struts2)
Linux based collaborative password manager with strong encryption.
Web-based password exchange, sharing and storage system.