SIM (Subscriber Identity Module) card communication and system based on quantum cryptographic algorithm

Abstract

The invention relates to the technical field of communication security, in particular to an SIM card communication method and system based on an anti-quantum cryptography algorithm, and the method comprises the steps: obtaining first signature data, carrying out the signature verification of the first signature data through employing a public key generated by a first anti-quantum cryptography algorithm and a public key generated by a first cryptographic algorithm, and obtaining a first signature verification result; after the signature verification succeeds, a first preset private key is utilized to perform combined signature on the first random number and a second random number generated by the first SIM card to obtain second signature data; the first SIM card performs signature verification on the second signature data by using the first preset public key; and after successful verification, the first SIM card and the second SIM card communicate based on the symmetric key. According to the application, the anti-quantum cryptographic algorithm is added in the SIM card, so that the post-quantum algorithm can be integrated in the SIM card, the problem that the SIM card uses a traditional cryptographic algorithm is solved, information can be prevented from being attacked and cracked in the quantum computing power era, and the communication security of the SIM card is improved.

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