Quantum authentication scheme based on algebraic coding

Details Quantum authentication scheme based on algebraic coding Quantum authentication scheme based on algebraic coding

2003-07-14

arxiv.org/abs/quant-ph/0307095v2

Physics

Quantum Physics

No figures, Submitted to PRA

Scientific paper

This paper presents a simple, but efficient class of non-interactive protocols for quantum authentication of $m$-length clas sical messages. The message is encoded using a classical linear algebraic code $C[n,m,t]$. We assume that Alice and Bob share a classical secret key, $x_{AB}$, of $n$ bits. Alice creates $n$ qubits based on the code word and the key, that indicates the bases used to create each qubit. The quantum states are sent to Bob through a noiseless quantum channel. We calculate the failure probability of the protocol considering several types of attacks.

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