Efficient generic Hash function authentication scheme suitable for quantum cryptography system

Abstract

The invention discloses an efficient generic Hash function authentication scheme suitable for a quantum cryptography system. In the scheme, a word-based design way is adopted. The scheme comprises the following steps: initializing a shared key of both parties and a word linear feedback shift register; performing vector multiplication on an authentication message and a register state in sequence by using an iteration and vector multiplier of the word linear feedback shift register; performing accumulation through an accumulator; performing exclusive or processing on a random number to obtain a message authentication code; and transmitting an authentication message and the message authentication code to the other party to realize an identity authentication function. The authentication scheme disclosed by the invention is clear in design principle, a design way is open, and any manual security defect does not exist; through the authentication scheme, an ideal safety security attribute can be achieved, and an efficient identity authentication function can be provided for the quantum cryptography system; and the authentication scheme has the characteristics of low occupation of resources, high portability and high platform adaptability.

Description

technical field [0001] The invention relates to an identity authentication scheme in the field of information security, in particular to an efficient pan-Hash function authentication scheme suitable for quantum cryptography systems. Background technique [0002] Quantum communication is a new interdisciplinary subject developed in the past two decades, and it is the product of the combination of quantum theory and information theory. It mainly uses the quantum entanglement effect for information transmission, and its research mainly involves quantum cryptography communication, quantum teleportation and quantum dense coding. Among them, quantum cryptography communication is actually a key distribution (QKD) process, and its security mainly depends on the Heisenberg uncertainty principle in quantum mechanics, the single quantum non-cloning theorem and the indivisibility of quantum, making the eavesdropper Any information-obtaining operation of , will be detected by destroying...

AI Technical Summary

Problems solved by technology

Compared with the two in terms of security and implementation efficiency, the latter is more efficient but requires more keys. In practice, key expansion is often used, which in turn reduces security; the former is not efficient and secure The parameter is related to the length of the authentication message, which is not suitable for high-speed and large authentication data environments

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