信源问题一直是汽车数字化过程中的一个瓶颈问题。射频识别(radio frequency identification，RFID)技术的日趋成熟为解决这个问题提供了新的方向。然而，作为RFID系统的一种应用，其安全问题必须得到很好的解决。本文就汽车数字化标准信源(vehicle digital standard info-source，VDSI)和RFID的特点以及当前信息安全现状提出了一种VDSI数据库加密引擎。

The information source has been a bottleneck problem which troubles the vehicle digitalization process for a long time.With the rapid growth and wide range of adoption of Radio Frequency Identification (RFID for short) technology，a new viable solution is provided to solve the problem.With the adoption of RFID technology，the information security problems can be solved.This paper discussed the characteristics and peculiarity of RFID technology as vehicle digital standard info-source (VDSI for short)，and proposed a VDSI database encrypting engine.