基于DOCSIS标准的HFC数据加密算法的分析

Analysis of HFC data encryption algorithm based on DOCSIS standard

基于DOCSIS标准的增强型基线保密性接口(BPI+)采用56bitDES加密分组数据、采用二密钥三重DES加密通信量加密密钥。这种多重加密技术的应用为HFC网络的数据传输提供了相当于或更好于专线级的网络安全与加密性能。

Baseline Privacy plus Interface(BPI+)on DOCSIS uses the56bit DES for Packet Data Encryp-tion,and the Three-ary DES for the Traffic Encryption Key Encryption.These encryptions provides more better da-ta security equivelent to or better than that in special line network for HFC network.[