摘要：

针对蓝牙协议的基带层加密方案在密钥方面易受穷尽攻击、中间人攻击和E0算法容易受到代数攻击的问题，根据蓝牙设备的特点提出一种基于主机控制器接口层的加密方案，利用改进的ECDH协议保护密钥的安全性。实验表明，该方案能有效提供安全保护机制，解决蓝牙在可靠传输模式下影响传输速度的问题，其AES对蓝牙设备的传输速率影响较小。

关键词: 蓝牙安全, 加密方案, AES算法

Abstract: Aiming at the exhaustive attack and Man in The Middle attack on the key, algebra attack on E0 algorithm of the baseband encryption scheme, this paper proposes a new encryption scheme on the HCI layer, based on the features of Bluetooth devices. It protects the security of key with improved ECDH protocol. Experiment demonstrates the scheme provides more security mechanism and solves the impact on communication under reliable transmission, and the style of improved AES algorithm has less impact on communication.

Key words: Bluetooth security, encryption scheme, AES algorithm

中图分类号: 

• TP309.1