[Cryptography] how to encrypt for the very long term?

[Dave Howe]

On 31/07/2018 05:06, Christoph Gruber wrote:
> Hi Philip!
>
> Perfect encryption is correct, also that perfect encryption is NOT
> enough for security. For integrity purposes, other means my also
> apply, or use cryptographic methods to detect alteration, but that is
> not encryption, or only partially.
> You can put all these together in one application, but the functions
> and the methods you use, be separate.
Or apply another layer - apply an archiving solution that has integrity
and error recovery built in (so something like WinRAR) and then XOR that
with a key.  means you no longer have that theoretically perfect
encryption, but in practical terms it is an improvement :)