Desktop application from the practical part of my senior thesis for client end-to-end encryption using a custom RSA implementation with the ability to encrypt, decrypt, sign and verify text data, with an automatic update mechanism and with an insight tab that should give the user an idea of how the RSA concept functions.
This RSA implementation does not ensure privacy nor security. It also does not declare any format specification. There exist time tested specifications for the RSA like the OpenPGP standard, which is implemented by time tested programs like GPG.
Hitai does not use any of those, but rather implements its own experimental way of using and practicing the ideas from the original RSA paper.
Please do not use this program for any confidential communication as you have no guarantee of security nor privacy.