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May 17, 2016 10:00 pm

Theoretical Breakthrough Made In Random Number Generation

msm1267 quotes a report from Threatpost: Two University of Texas academics have made what some experts believe is a breakthrough in random number generation that could have longstanding implications for cryptography and computer security. David Zuckerman, a computer science professor, and Eshan Chattopadhyay, a graduate student, published a paper in March that will be presented in June at the Symposium on Theory of Computing. The paper describes how the academics devised a method for the generation of high quality random numbers. The work is theoretical, but Zuckerman said down the road it could lead to a number of practical advances in cryptography, scientific polling, and the study of other complex environments such as the climate. "We show that if you have two low-quality random sources -- lower quality sources are much easier to come by -- two sources that are independent and have no correlations between them, you can combine them in a way to produce a high-quality random number," Zuckerman said. "People have been trying to do this for quite some time. Previous methods required the low-quality sources to be not that low, but more moderately high quality. We improved it dramatically." The technical details are described in the academics' paper "Explicit Two-Source Extractors and Resilient Functions."

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