Cryptography is the ultimate computing science.

What resembles the main value in computing science is computationally irreducible computing. Cryptography is the science of NP!=P, i.e. computationally irreducible computing.

The real intelligence is computationally irreducible; future civilization will compute only in irreducible way; i.e. there will be no forms of computing which is not a cryptography.

Also on the topic: https://dr.orlovsky.ch/blog/inevitability-of-cypherpunk-for-a-proper-civilization