Wesley A. Clark, Made Computing Personal, Dies at 88

Breaking Symmetric Cryptosystems using Quantum Period Finding, by Marc Kaplan, Gaëtan Leurent, Anthony Leverrier, and María Naya-Plasencia. “In this paper, we consider attacks where an adversary can query an oracle implementing a cryptographic primitive in a quantum superposition of different states. … ]e e show that the most widely used modes of operation for authentication and authenticated encryption (e.g. CBC-MAC, PMAC, GMAC, GCM, and OCB) are completely broken in this security model.”

A Natural Prime-Generating Recurrence, by Eric S. Rowland (2008). “For the sequence defined by a(n) = a(n-1) + gcd(n,a(n-1)) with a(1) = 7 we prove that a(n) - a(n-1) takes on only 1’s and primes, making this recurrence a rare ‘naturally occurring’ generator of primes.”

Passive Wi-Fi: Bringing Low Power to Wi-Fi Transmissions

Cool Graphs of Implicit Equations, nifty.

Keepalive, permanent outdoor installation by Aram Bartholl.

Weanarisch Wiad Wödsproch im World Wide Web