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From Key Encapsulation to Authenticated Group Key Establishment—A Compiler for Post-Quantum Primitives

1
Department of Mathematical Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA
2
Department of Mathematical Sciences, Universidad de León, 24071 León, Spain
*
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in JNIC 2019 (as 2-page extended abstract and as poster) held at the San Francisco de Cáceres Complex between June 5 and 7, 2019.
These authors contributed equally to this work.
Entropy 2019, 21(12), 1183; https://doi.org/10.3390/e21121183
Received: 30 September 2019 / Revised: 27 November 2019 / Accepted: 27 November 2019 / Published: 30 November 2019
(This article belongs to the Special Issue Blockchain: Security, Challenges, and Opportunities)
Assuming the availability of an existentially unforgeable signature scheme and an (IND- CCA secure) key encapsulation mechanism, we present a generic construction for group key establishment. The construction is designed with existing proposals for post-quantum cryptography in mind. Applied with such existing proposals and assuming their security, we obtain a quantum-safe three-round protocol for authenticated group key establishment that requires only one signature per protocol participant. View Full-Text
Keywords: authenticated group key establishment; post-quantum cryptography; key encapsulation mechanism authenticated group key establishment; post-quantum cryptography; key encapsulation mechanism
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Persichetti, E.; Steinwandt, R.; Suárez Corona, A. From Key Encapsulation to Authenticated Group Key Establishment—A Compiler for Post-Quantum Primitives . Entropy 2019, 21, 1183.

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