Obfustopia Built on Secret-Key Functional Encryption
ADVANCES IN CRYPTOLOGY - EUROCRYPT 2018, PT II, pp. 603-648, 2018.
We show that indistinguishability obfuscation (IO) for all circuits can be constructed solely from secret-key functional encryption (SKFE). In the construction, SKFE need to be able to issue a-priori unbounded number of functional keys, that is, collusion-resistant. Our strategy is to replace public-key functional encryption (PKFE) in the...More
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