Electronic control unit

An electronic control unit associated with a vehicle is disclosed. The described techniques address problems related to current secure in-vehicle communication systems that require generation of sub-keys for each encoded data transmission/reception. These encoded data transmission/reception may be based on several different in-vehicle communication protocols, and the requirement for "instant" generation of subkeys for such protocols may lead to significant processing overhead and delay. Embodiments provided herein address the problem of subkey generation by pre-computing and storing subkeys to be used for future encoded data message transmission/reception using a predetermined function. In this way, the time and overhead required to generate subkeys can be managed better and more efficiently. 公开了与车辆相关的电子控制单元。所描述的技术解决了与当前安全车载通信系统有关的问题，安全车载通信系统需要针对每个已编码数据发送/接收来生成子密钥。这些已编码数据发送/接收可以基于若干不同的车载通信协议，并且对于这样的协议的"即时"生成子密钥的要求可能导致显著的处理开销和延迟。本文提供的实施方式通过使用预定函数预先计算并存储要用于将来的已编码数据消息发送/接收的子密钥，解决了子密钥生成的问题。以这种方式，可以更好且更有效地管理生成子密钥所