Method and system for encrypting and verifying non-contact smart card
By implementing two-way authentication and data encryption between the card reader and the contactless smart card, the problem that the existing technology cannot effectively verify the identity of the Mifare card and the card reader is solved, which significantly improves communication security and system stability.
CN119989326AActive Publication Date: 2025-05-13BEIJING ZHAOXUN HENGDA TECH CO LTD
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Patent Information
- Application Number
- CN202411909316.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2044-12-24
AI Technical Summary
Technical Problem
The prior art cannot effectively verify the identity of Mifare cards and Mifare card readers, and cannot achieve two-way verification.
Method used
By implementing bidirectional authentication and data encryption between the card reader and the contactless smart card, specific steps include generating and verifying random numbers, using linear feedback shift registers and CRYPTO 1 algorithm for data combination and decoding.
Benefits of technology
It significantly improves the security of the communication process, ensures the security of user identity data and the overall stability of the system, and improves the reliability and compatibility of the product.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a non-contact intelligent card encryption verification method and a non-contact intelligent card encryption verification system, and aims to improve the safety of communication between an intelligent card and a card reader. The method comprises the steps of random number generation, cyclic redundancy check, user identity data generation and XOR operation, combined data encryption, token generation and verification and the like, and by simulating interaction of a card reader and a non-contact intelligent card, early verification in the design stage of the card reader and the intelligent card is achieved. The verification period is effectively shortened; and the manufacturing cost is reduced.
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