A memristor-based circuit that spits out a steady stream of true random numbers could hold the key to enhanced security in NFC transactions, reports IEEE Spectrum. The tiny circuit, invented by engineers at the National Tsing Hua University (NTHU) in Taiwan, offers the prospect of using small low power devices to generate true random numbers — something that is difficult to do using today’s digital circuits, which typically produce numbers that aren’t completely random, the publication explains.

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