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Physical Unclonable Functions (PUFs) have gained a lot of research attention in recent years resulting in many different PUF proposals. Several of these proposals were aimed specifically at FPGA implementations. However, often these PUFs are evaluated and implemented for different (and often old) FPGA families with different metrics. Missing implementation details in many papers further hamper a fair...
Physical Unclonable Functions (PUFs) are a promising way to securely generate and store keys by using the inherent process variations of each chip as a source of randomness. One of the most promising PUFs for FPGAs is the Ring-Oscillator (RO) PUF. In this paper we take a closer look at RO PUFs and their open challenges. Starting from a reference design for a Spartan-6 FPGA based on PUFKY, we show...
We present fundamental progress on the computational universality of swarms of micro- or nano-scale robots in complex environments, controlled not by individual navigation, but by a uniform global, external force. Consider a 2D grid world, in which all obstacles and robots are unit squares, and for each actuation, robots move maximally until they collide with an obstacle or another robot. In previous...
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