摘要： 分析并比较对称加密算法DES, AES和非对称加密算法RSA，结合地图数据网络分发的实际应用，提出散列组合加密算法。该算法具有AES算法的高效性和RSA算法便于进行密钥管理的特点，将数据与密钥混合后传输，增加了加密的安全性。实验结果表明，新算法满足了数据加密的安全性及效率要求。

关键词: 地图数据网络分发, 数据加密, 加密算法

Abstract: This paper analyzes and compares DES, AES in symmetry encryption algorithm and RSA in nonsymmetry encryption algorithm. A new algorithm called hashing combination encryption algorithm is proposed based on the application of map data dissemination on internet. The higher efficiency of AES and the facility of key managing of RSA are combined in this algorithm. Encryption security is improved when the data mix with the key. The experimental results show that the new algorithm satisfies the requirement of data encryption security and efficiency.

Key words: map data dissemination on Internet, data encryption, encryption algorithm

中图分类号: 

• TP393.09