Abstract
The McEliece cryptosystem is one of the public-key cryptosystems that do not have known vulnerabilities to attacks using quantum computers. However, the McEliece cryptosystem has not been widely used for practical applications due to the large key size. We present an authenticated key exchange protocol based on the McEliece cryptosystem. We show that the proposed protocol is well suited for the G.709 Optical Transport Network (OTN) framework and satisfies a typical key refreshing rate used in industry. The proposed protocol addresses known weaknesses of the McEliece cryptosystem under a framework of the PACE protocol. The proposed protocol is implemented in software and demonstrated in a commercial optical communication system.
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