Obfuscation: building the final boss of cryptography
Summary
A deep technical exploration of obfuscation in cryptography, focusing on indistinguishability obfuscation (iO), its practical hurdles, and architectures like XiO, functional encryption, ABE, and FHE. The piece surveys why secure obfuscation remains largely theoretical due to runtime blowups, trusted setups, and complex security assumptions, while outlining future directions and potential routes to practical constructions.