Plugin idea: Feistel cipher over int primary keys

[benjie]

Codecs may unlock the ability for us to put custom translations in to convert to/from what's in the database. An interesting use case for this might be a feistel cipher - you could tag a particular tables primary key as @feistel and then whenever it's used (even in foreign key relations) it could be automatically converted to a random-looking number on the way out, and converted back to the underlying number away on the way back in. If we've coded everything that use these values (Node IDs, cursors, etc) to use the codecs then this should be possible... I think. It'll be a fun experiment if so!

https://en.wikipedia.org/wiki/Feistel_cipher