中文摘要：

传统物联网多设备通信加密模块的防御能力不足，且常对物联网网络连通能力产生影响。因此，对物联网多设备通信中的加密模块进行优化设计，该模块中的密钥设计端为物联网多设备通信信息设计密钥，密钥分为对称密钥和非对称密钥。当信息量较大时，选用对称密钥进行加密设计，密钥分发端将对称密钥拆分，并单独分发给收发单位；当信息量不大时，则选用非对称密钥，所设计的非对称密钥将直接传输给收发单位。持有密钥的收发单位在密钥认证端共同认证成功后，便可下载物联网多设备通信信息。模块实现部分给出了加密模块处理信息的流程图以及函数。实验结果表明，所设计的加密模块拥有较强的防御能力，且对物联网网络连通能力影响较小。

英文摘要：

The defensive ability of traditional encryption module for multi?equipment communication in Internet of Things(IOT) is insufficient,and often affect IOT network connecting ability. Therefore,the encryption module used in IOT multi?equipment communication is optimized and designed. The key design end of the module is IOT multi?equipment communicate in?formation design key. The key is divided into the symmetric key and asymmetric key. When the information content is muchmore,the symmetric key is selected for encrypt design. The symmetric key is split by key distribution terminal and then distrib?uted to transmit?receive units one by one. When the information content is not more,the asymmetric key is selected,and the de?signed asymmetric key is directly transmitted to the transmit?receive units. The transmit?receive units with the key after the mutu?al authentication is successful on the key authentication end can download the IOT multi?equipment communication information.The flow chart and functions for information processing of encryption module are given. The experimental result shows that thedesigned encryption module has strong ability of defense,and less influence on the IOT network connecting ability.