Anti-quantum computing RFID authentication method and system based on symmetric key pool and quadratic remainder

Abstract

This application relates to an anti-quantum computing RFID authentication method and system based on a symmetric key pool and a quadratic remainder. A key card, the key card of the requesting party stores a symmetric key unit, its own identity, a true random number, a public key, and a key pointer address corresponding to the symmetric key unit. A symmetric key is stored, and the method can reduce the storage cost in the key card of the requesting party, and improve the security during authentication interaction between the two parties.

Description

technical field [0001] This application relates to the field of secure communication technology, in particular to a quantum computing-resistant RFID authentication method and system based on a symmetric key pool and quadratic remainder Background technique [0002] Radio Frequency Identification (RFID) is the abbreviation of Radio Frequency Identification. RFID radio frequency identification technology is an earlier technology. In the 1950s, the theory of RFID radio frequency identification technology was developed. In the 1970s, some earlier RFID applications appeared, and RFID gradually entered the commercial stage. Since the 1980s, with the increasing attention to the standardization of RFID technology, RFID products have been more and more widely used. The principle is to conduct non-contact data communication between the reader and the tag to achieve the purpose of identifying the target. The application of RFID is very extensive. At present, typical applications inc...

AI Technical Summary

Problems solved by technology

[0005] 1. The existing identity authentication scheme based on a symmetric key pool uses a symmetric key pool between the server and the client, which has a huge capacity and puts pressure on the key storage of the server, and is not suitable for applications with a very small storage capacity. RFID device

Moreover, the security of the symmetric key algorithm for identification is not high enough: on the one hand, using the same symmetric key multiple times may lead to insufficient security of the key or even being cracked; on the other hand, any party with a symmetric key can The encrypted information is decrypted, so that the encrypted information can be decrypted by illegal objects other than legal objects, and the security is not high enough

[0006] 2. The existing identity authentication scheme based on the asymmetric key pool, because the asymmetric key cannot be used publicly, it must be encrypted to resist quantum computing, so the entire identity authentication process needs to use the encryption algorithm to encrypt the asymmetric key encrypted protection

Therefore, this method increases the amount of calculation for RFID devices, which may slow down the identification process; for battery-powered RFID, it will accelerate the consumption of power

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