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请问bq27541中的SHA-1/HMAC 通信加密算法是什么作用?识别充电器的吗?是不是每种充电器都有一个key?



请问bq27541中的SHA-1/HMAC 通信加密算法是什么作用?识别充电器的吗?是不是每种充电器都有一个key?谢谢~