Unconditionally-secure and reusable public-key authentication

Details Unconditionally-secure and reusable public-key authentication Unconditionally-secure and reusable public-key authentication

2011-08-14

arxiv.org/abs/1108.2887v1

Physics

Quantum Physics

to appear in Proceedings of the 6th Conference on the Theory of Quantum Computation, Communication and Cryptography (TQC 2011)

Scientific paper

We present a quantum-public-key identification protocol and show that it is
secure against a computationally-unbounded adversary. This demonstrates for the
first time that unconditionally-secure and reusable public-key authentication
is possible in principle with (pure-state) public keys.

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