Salvatore Certo, Anh Pham, et al.
Quantum Machine Intelligence
The existence of sparse pseudorandom distributions is proved. These are probability distributions concentrated in a very small set of strings, yet it is infeasible for any polynomial‐time algorithm to distinguish between truly random coins and coins selected according to these distributions. It is shown that such distributions can be generated by (nonpolynomial) probabilistic algorithms, while probabilistic polynomial‐time algorithms cannot even approximate all the pseudorandom distributions. Moreover, we show the existence of evasive pseudorandom distributions which are not only sparse, but also have the property that no polynomial‐time algorithm may find an element in their support, except for a negligible probability. All these results are proved independently of any intractability assumption. Copyright © 1992 Wiley Periodicals, Inc., A Wiley Company
Salvatore Certo, Anh Pham, et al.
Quantum Machine Intelligence
R.B. Morris, Y. Tsuji, et al.
International Journal for Numerical Methods in Engineering
Charles Micchelli
Journal of Approximation Theory
David Cash, Dennis Hofheinz, et al.
Journal of Cryptology