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ABSTRACT
One-way are those functions which are easy to compute, but hard to invert on a non-negligible fraction of instances. The existence of such functions with some additional assumptions was shown to be sufficient for generating perfect pseudorandom strings |Blum, Micali 82|, |Yao 82|, |Goldreich, Goldwasser, Micali 84|. Below, among a few other observations, a weaker assumption about one-way functions is suggested, which is not only sufficient, but also necessary for the existence of pseudorandom generators. The main theorem can be understood without reading the sections 3-6.
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.
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L. Blum, M. Blum, M. Shub, A Siml)l~ Secure Pseudo-Random Number Generator, Advances in Cryptology ed. D. Chaum. R.I. Rivest and A.T. S}herman, Plem\num Pres, 1983. pp 61-78
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M. Blunl, S. Mieali, llow to generate ~;ryptographically Strong Sequences of Pseudo Random Bits, FOCS Symp. Proc. (1982); SIAM J. on Cornput, Jug. 13 ( 1984 ) pp.85()--8~~4.
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O. Goldreich, S. Goldwasser, S. Mirali, How toConstruct Random Functions, PRco. 25th Symp. on l~))undations' of Computer Science (1984).
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L. kevin, Universal Sequential Search Problems, Probl. Inf. 7~ansm. 9/3, (1973)pp. 265-266.
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L, Levin, Average Case Complete Problems. 1984 ACM Syrup. on Theory of Computing, Proc.
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A. D. Wyner, The wire-tap channel, Bell System 'l~:chnica!Journal 54, (1975), pp. 1355-1387.
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A. C. Yao, Theory and Applications of Trapdoor Functions, t>roc. 23rd IEEE Syrup. on l;bun. dations of Computer Science {1982) pp. 80-91.
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CITED BY 14
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S. Ben-David , B. Chor , O. Goldreich, On the theory of average case complexity, Proceedings of the twenty-first annual ACM symposium on Theory of computing, p.204-216, May 14-17, 1989, Seattle, Washington, United States
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