Matt Green has a very readable critique of this proposal here: https://blog.cryptographyengineering.com/2018/04/26/a-few-thoughts-on-ray-ozzies-clear-proposal/

Matt Green has a very readable critique of this proposal here: https://blog.cryptographyengineering.com/2018/04/26/a-few-thoughts-on-ray-ozzies-clear-proposal/ https://blog.cryptographyengineering.com/2018/04/26/a-few-th... Edit: My own take is that the proposed scheme is nothing particularly special, but the article's criticism of the crypto(graphy) and security community's approach to this problem is pretty well spot-on.