## Gambling, Computational Information, and Encryption Security

Bruce Kapron

University of Victoria; Member, School of Mathematics

March 24, 2014

We revisit the question, originally posed by Yao (1982), of whether encryption security may be characterized using computational information. Yao provided an affirmative answer, using a compression-based notion of computational information to give a characterization equivalent to the standard computational notion of semantic security. We give two other equivalent characterizations.