Particular/NServiceBus — pull request #2315 by SimonCropp (2014-08-17 23:09:16+00:00)
Title: Verify keys are not too similar

so this it the mitigation that @udidahan recommended. the problem is that not being able to reproduce the issue (cant find too keys that cause the problem) i dont know if the "string being encrypted" is a variable that impacts the outcome.

Can anyone come up with anything better?

For reference here are the SO articles

* http://stackoverflow.com/questions/1556683/does-rijndael-always-throw-an-exception-if-the-password-isnt-correct
* http://stackoverflow.com/questions/5812232/c-sharp-aes-rijndael-detecting-invalid-passwords