(and I say that as someone that used to sell commercial aviation data that came on CDs...)
It seems there is a misunderstanding over the classification of 'critical' stuff.
We may all have a very different definition.
All I know: the second your are connected to internet, you are cooked.
Not only Airbus. You see, cloud is secure, information is encrypted and only you have access to your data.
Everything else is, I am sorry to say, BS.
Why would a company without cryptographic expertise modifying an existing algorithm without any particular goal in mind just to be different, produce something more secure than the winning solution in an open cryptographic competition?
> directory names
And file structure too, preferably. Incremental sync could be done with XTS mode.
Are you an AI?
Usually, non-specialists fiddling with cryptographic algorithms makes them much less secure. Developers who aren't cryptographic mathematicians should generally use a well-respected algorithm, follow current best practices, and treat that component as a magic box that's not to be tampered with.
Sounds like the "I know a guy" kind of thing that shouldn't be done if you really care about security.
>Are you an AI?
Non-sequitur.