Data processing method and apparatus
By dividing the vehicle infotainment system upgrade package into multiple data segments and employing a hybrid encryption strategy, the problem of traditional vehicle OTA updates being vulnerable to attacks is solved, thereby improving vehicle security and system stability.
CN122247745APending Publication Date: 2026-06-19AVATR CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AVATR CO LTD
- Filing Date
- 2026-04-27
- Publication Date
- 2026-06-19
Smart Images
Figure CN122247745A_ABST
Abstract
This invention relates to the field of data processing technology and discloses a data processing method and apparatus. The method includes: dividing the original data corresponding to the vehicle system upgrade software package into multiple data segments according to a preset granularity; generating a session key based on the one-time task public key in the one-time task key pair and the upgrade task identifier corresponding to the software package; performing asymmetric encryption on the first segment plaintext according to the one-time task public key and the session key to obtain the first segment ciphertext; performing asymmetric encryption on the last segment plaintext according to the one-time task public key to obtain the last segment ciphertext; performing symmetric encryption on the middle segment according to the session key to obtain the middle segment ciphertext; and packaging the first segment ciphertext, the middle segment ciphertext, and the last segment ciphertext into a target upgrade package. This method avoids the problem that traditional vehicle OTA uses a single symmetric encryption for all upgrade packages of all vehicles, which is easily decrypted by attackers, leading to systemic risks.
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