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实现控制指令HMAC签名与防重放

未完成

示例

输入
solve()
期望输出
CMD001 DEV009: ok=False, reason=timestamp_expired
CMD002 DEV006: ok=False, reason=timestamp_expired
CMD003 DEV006: ok=False, reason=timestamp_expired
CMD004 DEV006: ok=False, reason=timestamp_expired
CMD005 DEV001: ok=False, reason=timestamp_expired [REPLAY SAMPLE]
CMD006 DEV004: ok=False, reason=timestamp_expired
CMD007 DEV001: ok=False, reason=timestamp_expired
CMD008 DEV001: ok=False, reason=timestamp_expired
CMD009 DEV004: ok=False, reason=timestamp_expired
CMD010 DEV007: ok=False, reason=timestamp_expired
CMD011 DEV006: ok=False, reason=timestamp_expired
CMD012 DEV006: ok=False, reason=timestamp_expired [REPLAY SAMPLE]
CMD013 DEV006: ok=False, reason=timestamp_expired
CMD014 DEV004: ok=False, reason=timestamp_expired
CMD015 DEV009: ok=False, reason=timestamp_expired
CMD016 DEV006: ok=False, reason=timestamp_expired
CMD017 DEV007: ok=False, reason=timestamp_expired
CMD018 DEV009: ok=False, reason=timestamp_expired
CMD019 DEV007: ok=False, reason=timestamp_expired
CMD020 DEV004: ok=False, reason=timestamp_expired
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