中文摘要：

为了在无线传感器网络（WSN）中保证安全等级的情况下降低通信成本和计算成本，提出了一种带消息恢复机制的基于配对密码学的广播认证协议。该机制不需要同时传输原始签名信息和新生成的签名信息，认证／消息恢复过程能自动恢复原始签名信息。首先初始化系统，基站产生系统参数；然后用户从基站获取密钥，访问WSN；最后当用户需要广播消息给WSN时，用户使用包含消息恢复机制的身份签名（IBS）协议写下签名消息，生成签名后进行消息广播。实验性能分析表明，与IMBAS和IDBAS相比，本文协议的广播消息大小分别减少了30％和22．3％，在112bit安全等级，总能耗至少减少30％左右，在80bit安全等级至少可降低15％的总能耗。

英文摘要：

In order to reduce communication cost and computation cost in wireless sensor networks （ WSN ）, an efficient broadcast authentication scheme based on pairing-based cryptography with message recovery is proposed. This mechanism does not require the simultaneous transmission of the original signature information and the new generated signature information. Authentication/ message recovery process can automatically restore the original signature information. Firstly, the system is initialized, the base station generates system parameters. Then, users get the key from the base station, and access WSN. Finally, when the users need to broadcast messages to WSN, the identity-based signature （IBS） protocol based on message recovery mechanisms is used to write the signed message to broadcast. Experimental analysis show that compared with IMBAS and IDBAS, the message size of the protocol is decreased by 30% and 22. 3% respectively. On the 112 bit security level, the total energy consumption is reduced by at least about 30%. It has at least 15% reduction in total energy consumption on the 80 bit security level.