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PQCRYPTO
2016

Post-Quantum Security Models for Authenticated Encryption

9 months 20 days ago
Post-Quantum Security Models for Authenticated Encryption
We propose a security model for evaluating the security of authenticated encryption schemes in the post-quantum setting. Our security model is based on a combination of the classical Bellare-Namprempre security model for authenticated encryption together with modiļ¬cations from Boneh and Zhandry to handle message authentication against quantum adversaries. We give a generic construction based on the BellareNamprempre model for producing an authenticated encryption protocol from any quantum-resistant symmetric-key encryption scheme together with any authentication scheme (digital signature scheme or MAC) admitting a classical security reduction to a quantum-computationally hard problem. We give examples of suitable authentication schemes under the quantum random oracle model using the Boneh-Zhandry transformation. We also provide tables of communication overhead calculations and comparisons for various choices of component primitives in our construction.
Vladimir Soukharev, David Jao, Srinath Seshadri
Added 09 Apr 2016
Updated 09 Apr 2016
Type Journal
Year 2016
Where PQCRYPTO
Authors Vladimir Soukharev, David Jao, Srinath Seshadri
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