本文關(guān)鍵詞：動(dòng)態(tài)非對(duì)稱群組密鑰協(xié)商協(xié)議研究　出處：《大連理工大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 非對(duì)稱群組密鑰 動(dòng)態(tài)群組 認(rèn)證協(xié)議 密鑰協(xié)商 密碼協(xié)議

【摘要】：隨著計(jì)算機(jī)技術(shù)及因特網(wǎng)的不斷發(fā)展,各類面向群組的應(yīng)用(如網(wǎng)絡(luò)會(huì)議、在線游戲等)不斷地涌現(xiàn)并給人們的工作和生活帶來(lái)了極大的便利。與此同時(shí),黑客及不法分子也廣泛地活躍在互聯(lián)網(wǎng)的各個(gè)角落。因此,對(duì)群組應(yīng)用而言,如何為合法用戶提供安全可靠的群組通信的問題已變得愈來(lái)愈重要。群組密鑰協(xié)商協(xié)議使得雙方或多方能夠在敵手控制的不安全網(wǎng)絡(luò)中安全地交換信息及協(xié)商出共同的會(huì)話密鑰。非對(duì)稱群組密鑰協(xié)商協(xié)議協(xié)商得到的會(huì)話密鑰具有非對(duì)稱性,即群組加密密鑰是公開的,因此任何系統(tǒng)實(shí)體都可以充當(dāng)發(fā)送方,但只有群組成員才能解密消息。認(rèn)證的群組密鑰協(xié)商協(xié)議引入了對(duì)群組成員身份進(jìn)行確認(rèn)的機(jī)制,從而可以有效地防止成員的假冒和抵賴行為。動(dòng)態(tài)群組密鑰協(xié)商協(xié)議研究如何更加高效而安全地解決群組成員發(fā)生變化的問題。本文通過(guò)分析和研究典型的非對(duì)稱群組密鑰協(xié)商協(xié)議,首先提出了一種新的基于身份的聚合簽名方案并在隨機(jī)預(yù)言機(jī)模型下進(jìn)行了形式化證明,然后在新簽名方案的基礎(chǔ)上,提出一種新穎的認(rèn)證的動(dòng)態(tài)非對(duì)稱群組密鑰協(xié)商協(xié)議。新協(xié)議僅需一輪通信即可實(shí)現(xiàn)群組成員的多種變化如新成員加入、成員退出和成員同時(shí)加入且退出等。此外,新協(xié)議滿足多種安全性質(zhì),如已知密鑰安全性、密鑰泄露模仿安全性、未知密鑰共享安全性、密鑰控制安全性、完美前向安全、后向安全、重放攻擊安全等。最后,效率分析表明,新協(xié)議與已有非對(duì)稱群組密鑰協(xié)商協(xié)議相比具有更好的表現(xiàn)。
[Abstract]:With the continuous development of computer technology and Internet application, all kinds of group oriented (such as web conferencing, online games) continue to emerge and brings great convenience to people's work and life. At the same time, every corner of hackers and criminals are active on the Internet. Therefore, the group of applications, how to legitimate users to provide safe and reliable group communication has become more and more important. Group key agreement protocol enables two or more parties in an insecure network security control in the exchange of information and agree on a common session key. Asymmetric group key agreement negotiation session key is asymmetric, i.e. group encryption the key is open, so any system entities can act as the sender, but only group members can decrypt the message authentication key agreement. The agreement of group members to confirm the identity of the mechanism, which can effectively prevent counterfeit and denying member behavior. Research on dynamic group key agreement protocol to more efficient and safe solution to group members change. Through the asymmetric group key agreement protocol analysis and Research on typical, first proposed a a new ID based aggregate signature scheme in the random oracle model for a formal proof, then based on the new signature scheme, this paper proposes a novel dynamic authentication asymmetric group key agreement protocol. Many new changes only one round of communication can be realized by group members as new members, members at the same time to join and exit and exit members. In addition, the new protocol to meet a variety of security properties, such as known key security, key compromise impersonation security, unknown. Key sharing security, key control security, perfect forward security, backward security, replay attack security, etc. Finally, efficiency analysis shows that the new protocol has better performance than the existing asymmetric group key agreement protocol.

【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TN918.4

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