计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2010年
1期
161-163,169
,共4页
张志军%郭渊博%刘伟%吕金娜
張誌軍%郭淵博%劉偉%呂金娜
장지군%곽연박%류위%려금나
动态对等通信%安全群组通信%组密钥协商%可证明安全性
動態對等通信%安全群組通信%組密鑰協商%可證明安全性
동태대등통신%안전군조통신%조밀약협상%가증명안전성
dynamic peer communication%secure group communication%group key agreement%provable security
为在动态对等通信环境下提高群组密钥协商的高效性与可扩展性,提出一种将m叉树结构与DH协议有机结合的组密钥协商协议.该协议与TGDH协议相比,通过采用m叉树结构,降低树的高度,减少计算量,与GDH协议相比,通过采用逐层式协商,降低通信开销.采用可变m叉树平衡该协议的计算开销与通信开销,使之同时适用广域网与局域网环境.
為在動態對等通信環境下提高群組密鑰協商的高效性與可擴展性,提齣一種將m扠樹結構與DH協議有機結閤的組密鑰協商協議.該協議與TGDH協議相比,通過採用m扠樹結構,降低樹的高度,減少計算量,與GDH協議相比,通過採用逐層式協商,降低通信開銷.採用可變m扠樹平衡該協議的計算開銷與通信開銷,使之同時適用廣域網與跼域網環境.
위재동태대등통신배경하제고군조밀약협상적고효성여가확전성,제출일충장m차수결구여DH협의유궤결합적조밀약협상협의.해협의여TGDH협의상비,통과채용m차수결구,강저수적고도,감소계산량,여GDH협의상비,통과채용축층식협상,강저통신개소.채용가변m차수평형해협의적계산개소여통신개소,사지동시괄용엄역망여국역망배경.
This paper proposes a group key agreement protocol based on m-tree and DH protocol to improve the poor scalability and efficiency of most group key agreement protocols in dynamic peer communication. Compared with TGDH, this protocol reduces the depth of key tree efficiently and computing costs of group key agreement by adopting m-tree. Compared with GDH, this protocol reduces communication costs of the group key agreement through layer-by-layer agreement. Communication and computing costs are balanced by variable m-tree, which makes a great progress in applications of LAN and WAN.