phc-discussions - Re: [PHC] What is "basic cryptography" ?

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Message-ID: <CAJm83bBrvcqT9GJv6bYE7iQzNx=PaCp3a6PP5cFLOPH-WDLZbQ@mail.gmail.com>
Date: Sun, 12 Oct 2014 16:00:18 -0400
From: Daniel Franke <dfoxfranke@...il.com>
To: discussions@...sword-hashing.net
Subject: Re: [PHC] What is "basic cryptography" ?

On 10/12/14, Thomas Pornin <pornin@...et.org> wrote:
> In his survey, Dmitry Khovratovich includes a property called "basic
> cryptography" and defined succinctly as:
>
>   "Basic cryptography — collision/preimage resistance, unpredictability."
>
> While I can intuitively have a rough idea of what this means, I struggle
> to write it down as a mathematically precise definition.
> [...]
> Does anybody here has an idea on the subject ? Or maybe a reference to
> some existing published work that already covers these questions ?

See https://eprint.iacr.org/2004/035.pdf. Turns out it's even trickier
than you think it is :-).