在我們設(shè)計(jì)的遠(yuǎn)程測量系統(tǒng)中，多個(gè)基于ARM 的嵌入式系統(tǒng)位于測量點(diǎn)，管理員可
通過網(wǎng)絡(luò)對其進(jìn)行訪問。為實(shí)現(xiàn)系統(tǒng)的安全訪問，設(shè)計(jì)了基于群簽名的遠(yuǎn)程測量系統(tǒng)訪問協(xié)議。本協(xié)議采用可驗(yàn)證的、無可信中心的(k, n)門限密碼系統(tǒng)產(chǎn)生系統(tǒng)的公/私密鑰，征集k個(gè)管理者為系統(tǒng)中的用戶生成證書和訪問測量系統(tǒng)的公/私密鑰。分析顯示協(xié)議能極好的抵御各種攻擊。
關(guān)鍵詞：門限密碼系統(tǒng)；單點(diǎn)登陸；嵌入式系統(tǒng)
Abstract: In our long-range measurement system, ARM-based embedded devices located in the measurement points. Managers can access the devices through internet. The Group-Signature-based Secure Protocol for long-range measurement system was designed for security. In our protocol, a verifiable threshold cryptosystem without a trusted center is applied to generate system public/private keys. K managers can generate certification and user public/private keys for user. The security analysis show that the protocol has desirable features of reliability, accountability and is secure in the presence of a variety of possible attacks.
Key words: threshold cryptosystem; Single Sign-On; embedded system