陳婷

摘? 要： 為解決生物認證技術容易受到主動攻擊的問題，在區(qū)塊鏈技術的基礎上，提出一種適用于金融大數(shù)據(jù)領域的跨域認證模型。通過分析生物認證技術的部分細節(jié)問題，指出了該項技術的安全性問題。針對這些安全隱患，以區(qū)塊鏈相關技術為基礎設計了跨域認證模型的技術細節(jié)和認證協(xié)議，同時詳細分析了該模型的安全性。分析與測試結果表明，該模型具有較強的便攜性和較高的效率，可以抵抗中間人攻擊和口令猜測攻擊。

關鍵詞： 跨域認證模型; 區(qū)塊鏈技術; 生物識別; 模型設計; 安全性分析; 結果測試

中圖分類號： TN911?34; TP212? ? ? ? ? ? ? ? ? ?文獻標識碼： A? ? ? ? ? ? ? ? ? ? ? 文章編號： 1004?373X（2020）06?0171?04

Research on financial big data authentication model based on block chain technology

CHEN Ting

（School of Logistics Management and Engineering， Nanning Normal University， Nanning 530299， China）

Abstract： On the basis of the block chain technology， a cross?domain authentication model for financial big data is proposed to solve the problem that biometric authentication technology is vulnerable to active attack. The security problems that might exist in the biometric authentication technology are pointed out by analyzing its some details. For these security risks， the technical details and authentication protocols of cross?domain authentication model based on block chain technology are designed， and the security of the model is analyzed in detail. The analysis and testing results show that this model has stronger portability and higher efficiency， which can resist man?in?the?middle attack and password guessing attack.

Keywords： cross?domain authentication model; block chain technology; biological recognition; model design; security analysis; result analysis