T-Box: A Forensics-Enabled Trusted Automotive Data Recording Method
T-Box: A Forensics-Enabled Trusted Automotive Data Recording Method
复制标题
T-Box：一种支持取证的可信汽车数据记录方法
作者：
Seungho Lee;W. Choi;Hyo Jin Jo;Dong Hoon Lee
现代车辆配备了大量的电子控制单元，这些单元交换车辆状态数据，为司机提供方便、高效和安全。此外，自动驾驶车辆采用各种传感器，产生大量高速数据，以处理和评估内部和外部情况。这些数据对汽车保险公司、租赁公司和制造商等汽车服务提供商特别有用。要理解这些数据是如何使用的，一种方法是想象一下这样的场景：一家汽车保险公司将向没有事故或几乎没有事故驾驶记录的客户提供折扣。然而，不诚实的客户仍然有可能操纵他们的驾驶数据，以获得优惠费率的保费保险服务。为了防止这种和类似的情况，确保车辆中生成的所有数据都保持完整性、连续性和不可否认性是至关重要的。不幸的是，到目前为止，在任何制造的车辆中都没有这种值得信赖的数据记录系统。本文试图响应这一需求，并提出了一种可靠的汽车数据记录系统，该系统满足了这些要求，并从数据删除、替换、重放和截断等方面检测恶意篡改。此外，该方法还满足消息认证密钥的前向完整性，并将记录数据用作汽车取证证据。最后，评测结果表明，我们的系统可以管理高达MB/S的带宽。
Modern vehicles are equipped with numerous electric control units which exchange vehicular status data, providing drivers with convenience, efficiency, and safety. In addition, the autonomous vehicles adopt various sensors that produce high volumes of high-speed data to process and assess internal and external situations. This data is particularly useful to automotive service providers such as car insurers, rental companies, and manufacturers. One way to understand how this data is used is to imagine the scenario in which an automobile insurer would provide a discount to a customer with an accident-free or near accident-free driving record. However, it is still possible that a less than the honest customer could manipulate their driving data in order to receive premium insurance services at preferential rates. To prevent this and similar scenarios, it is then critical to ensure that all data generated in a vehicle upholds integrity, continuity, and non-repudiation. Unfortunately, no such trustworthy data recording system of this caliber exists in any manufactured vehicle to date. This paper attempts to respond to this need, and we present a reliable automotive data recording system that satisfies these requirements and detects malicious manipulations from data deletion, replacement, replaying, and truncation. The proposed method additionally satisfies forward integrity of message authentication keys and is designed to utilize recorded data as automotive forensic evidence. Finally, the evaluation results demonstrate that our system can manage bandwidths of up to 64 MB/s.