IACR News item: 11 April 2016
Sanjit Chatterjee, Neal Koblitz, Alfred Menezes, Palash Sarkar
ePrint Report
How to deal with large tightness gaps in security proofs is a vexing
issue in cryptography. Even when analyzing protocols that are of
practical importance, leading researchers often fail to treat this
question with the seriousness that it deserves. We discuss nontightness in connection with complexity leveraging, HMAC, lattice-based cryptography, identity-based encryption, and hybrid encryption.
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