網(wǎng)格認證是網(wǎng)格安全的重要組成部分，是對網(wǎng)格實體身份有效性進行確定的過程。網(wǎng)格環(huán)境下虛擬組織為認證提出了新的要求。介紹了網(wǎng)格環(huán)境下虛擬組織的特點，闡述了網(wǎng)格認證的基本要求，分析了幾項常用的認證技術(shù)不適合多結(jié)點網(wǎng)格認證的原因，在此基礎(chǔ)上分析了Globus 項目中基于GSI 認證的相關(guān)技術(shù)及概念。網(wǎng)格技術(shù)是一項不斷發(fā)展的
技術(shù)，網(wǎng)格認證也處于不斷完善之中。
關(guān)鍵詞：虛擬組織；GSI；相互認證；代理；授權(quán);
Abstract: Grid authentication is an important component of Grid Security, and is the confirmation process of grid entity's identity validity. The virtual organization has put forward the new demand for authentication under the grid environment. Introducing the characteristic of virtual organization which under the grid environment, illustrating the basic demand of grid authentication, analyzing reasons of several commonly used authentication technology which does not suit to multi-sites grid authentication, analyzing the relevant technologies and concepts based on GSI authentication of Globus project. Grid technology is a developing
technology; grid authentication is in perfecting constantly too.
Key words：virtual organization; GSI; mutual authentication; proxies; delegation；