摘要
P2P网络的自由开放特性使得节点可随意创建身份加入系统,但这也会引发Sybil攻击。文章设计了一种新节点身份的认证方案,提出新节点身份需暴力破解单向函数的计算难题才能加入网络。因此增加了用户创建新节点身份的代价,使得用户无法随意创建身份,从而达到了验证新节点身份的目的,避免系统受到攻击。
Because of the open and anonymous nature of P2P networks, it leads to abuse of the networks to counterfeit many identities which is called Sybil Attack. For eliminating this threat, we put forward a computable puzzle： the bruteforce reversal of a one-way function and a authentication scheme to validate the new identities, impose a cost into the network which makes users unable to creat new identities easily and prevent from the attack.
出处
《微电子学与计算机》
CSCD
北大核心
2006年第4期162-165,共4页
Microelectronics & Computer
