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

ENTROPY(2019)

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摘要
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.
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关键词
authenticated group key establishment,post-quantum cryptography,key encapsulation mechanism
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