I'm working in a project which is using postgres (great database!, I love it)
We're in a stage where I need to implement a mechanism to prevent the data modification.
I'm thinking on 'Digital Signatures' (maybe RSA) in each row. If there's a modification, the signature doesn't verify.
However before start I need your help to know:
Is there in postgres something functionality like this?
Does any know if there's something similar another database system?
thanks in advance!
Luis Alberto Pérez Paz
