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Paper 2013/643
There is no Indistinguishability Obfuscation in Pessiland
Tal Moran and Alon Rosen
Abstract
We show that if $\NP \neq co-RP$ then the existence of efficient indistinguishability obfuscation (\iO) implies the existence of one-way functions. Thus, if we live in ``Pessiland", where $\NP$ problems are hard on the average but one-way functions do not exist, or even in ``Heuristica", where $\NP$ problems are hard in the worst case but easy on average, then \iO is impossible. Our result makes it redundant to explicitly assume the existence of one-way functions in most ``cryptographically interesting" applications of \iO.
Metadata
- Available format(s)
- Category
- Foundations
- Publication info
- Preprint. MINOR revision.
- Keywords
- obfuscationone-way functions
- Contact author(s)
- alon rosen @ idc ac il
- History
- 2013-10-10: received
- Short URL
- https://ia.cr/2013/643
- License
-
CC BY