Unless you use SSL, a user logs into Joomla sending his password in plain text across the network. A malicious user could take advantage of this vulnerability and can have access to the back-end.
This plugin is an alternative to SSL. It uses RSA to encrypt passwords or any other data you want in your component.
It is recommended to have the bcmath extension installed, otherwise DES algorithm is used.

Thank you very much for all the reviews and all the bugs reports

Works with Signal Login, JTP Horizontal Login, PWC Login, Inline Login and vtj login modules.

For other Joomla extensions, like Alpha Registration, Community Builder, Core Design Login Module, Yoo Login, YJ Pop Login Module you can find plugins at http://ratmil.com/encryption-plugins-for-popular-login-modules.html.

Changes in version 1.1.9

- Javascript encryption variable initialized using window.addEvent to avoid error when javascript files delayed to load.

Changes in version 1.1.8

- Fixed bug that was preventing users from logging in.

Changes in version 1.1.7

- Fixed for backward compatibility with mySql 4.

Changes in version 1.1.6
- Fixed for backward compatibility with mySql 4 and PHP 4.
- Dutch language added

Changes in version 1.1.5
- Fixed a bug that came up when bcmath scale parameter was not zero.

Changes in version 1.1.4

- Bug fixed to integrate with Alpha Registration Component

Changes in 1.1.3:
- Included GPL license requirements.

Changes in 1.1.2:
- Fixed small issue related password saving by Firefox.

Changes in 1.1.1:

- Keys are generated automatically every a certain amount of days
- Users can specify how often the keys are generated.
- Fixed a bug related password autocompletion. The recently reported bug about Firefox and chrome password saving.
- Menu is correctly shown based on current language.