深空网络的高效安全通信机制

Efficient and Secure Communication Scheme for Deep Space Networks

安全的深空通信网络是实现深空探测的重要保证之一。研究了基于天基网的深空网络体系结构,给出了一种安全通信机制。该机制采用基于属性的公钥加密算法来实现安全的深空数据传输。深空节点为数据选择加密属性集,用户能够解密密文当且仅当该加密属性集满足用户持有的访问树。该方案中用户与深空节点之间无需进行身份认证,大大减少了信息交互次数,比较适用于深空网络通信,以弥补其数据传输代价高昂的缺陷。

The secure deep space communication network is one of the most important aspects in deep space exploration. A deep space network architecture based on satellites networks was proposed and an efficient and secure communication scheme for this architecture was studied. In this scheme, the attribute-based encryption algorithms are used to achieve secure data transmission in deep space networks. The deep space node chooses a set of attributes for data to be transmitted and encrypts it with private keys corresponding to the attributes and a user can decrypt the cipher if and only if the attributes set satisfies the access tree user holds. There is no need for the node and the user to authenticate the identity of each other, so the numbers of information exchange are greatly reduced. The scheme is suitable for deep space networks in order to make up the deficiency of costly data transmission.