本文關(guān)鍵詞：RFID系統(tǒng)防碰撞算法與安全認(rèn)證協(xié)議的研究　出處：《江西理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： RFID 防碰撞算法 循環(huán)冗余校驗碼 安全認(rèn)證協(xié)議 GNY邏輯

【摘要】：射頻識別(Radio Frequency Identification,RFID)是一種利用射頻信號實現(xiàn)非接觸的自動識別技術(shù),具有識別速度快、安全性好、抗污染、穿透能力強、多物體識別等優(yōu)點,目前已廣泛應(yīng)用于高速收費、供應(yīng)鏈管理、產(chǎn)品證件防偽、身份識別等眾多領(lǐng)域。RFID技術(shù)的應(yīng)用給我們生活帶來便利的同時,也帶來了一些迫切需要解決的問題。例如,多個電子標(biāo)簽同時與讀寫器進行通信時所產(chǎn)生的數(shù)據(jù)碰撞問題以及無線通信過程中的安全認(rèn)證問題。本文針對這兩個問題進行了詳細的分析與探索,在分析與探索的基礎(chǔ)上,對現(xiàn)有的標(biāo)簽防碰撞算法和安全認(rèn)證協(xié)議的研究成果進行介紹、分類、比較、總結(jié),并提出了改善與創(chuàng)新,總結(jié)如下:1、文章在分析幀時隙ALOHA算法的基礎(chǔ)上,提出一種基于標(biāo)簽分組的幀時隙ALOHA優(yōu)化算法。該算法主要分為標(biāo)簽分組和標(biāo)簽識別兩個過程,即首先利用標(biāo)簽自身攜帶的循環(huán)冗余校驗碼(CRC碼)將標(biāo)簽進行分組,分組結(jié)束后,利用簡單的混沌系統(tǒng)產(chǎn)生均勻分布的偽隨機數(shù),每組的標(biāo)簽隨機選擇偽隨機數(shù)以作為它們占用的時隙號并開始識別標(biāo)簽,讀完一組標(biāo)簽群之后,再依據(jù)分組號識別其它組的標(biāo)簽。理論分析和仿真結(jié)果表明,無論標(biāo)簽的數(shù)目較大或者較小,改進的算法在識別速度上都有很明顯的提高。2、本文首先總結(jié)了幾種常見的RFID安全認(rèn)證協(xié)議,針對協(xié)議中安全性較差及標(biāo)簽成本過高等問題,利用循環(huán)冗余校驗碼(CRC碼)運算和簡單的邏輯運算提出了一種安全密鑰動態(tài)更新的新型RFID輕量級雙向認(rèn)證協(xié)議。通過GNY邏輯證明和安全性能分析表明,協(xié)議可以實現(xiàn)預(yù)定的目標(biāo),不僅能有效地實現(xiàn)讀寫器和標(biāo)簽之間的雙向認(rèn)證要求,而且可以避免竊聽攻擊、重傳攻擊、復(fù)制攻擊以及標(biāo)簽被追蹤等多種安全隱患問題。與同等安全程度的其他現(xiàn)有協(xié)議相比,該協(xié)議硬件實現(xiàn)復(fù)雜度較低,是一個低成本且安全的輕量型認(rèn)證協(xié)議。本文針對RFID中的兩項關(guān)鍵技術(shù)—多標(biāo)簽防碰撞技術(shù)和安全與隱私認(rèn)證技術(shù)分別進行了全面性的研究,在一定程度上解決了多標(biāo)簽碰撞和安全隱私泄露問題,并為以后解決實際中的應(yīng)用問題開闊了思路,提供了有意義的參考。
[Abstract]:Radio frequency identification (Radio Frequency, Identification, RFID) is a non-contact automatic identification technology using radio frequency signals, high recognition speed, good safety, anti pollution, strong penetrating ability, multi object recognition and other advantages, has been widely used in high-speed charging, supply chain management, product anti-counterfeiting, application identification the fields of.RFID technology brings convenience to our life, it also brings some urgent problems to be solved. For example, a plurality of electronic tags and the reader to communicate the data generated by the touch security authentication collision problem and wireless communication in the process. This paper detailed analysis and Exploration on the two a problem, based on the analysis and exploration, research the anti-collision algorithms and secure authentication protocol for existing tags were introduced, classification, comparison, summary, and put forward the reform Good and innovation are summarized as follows: 1. Based on the analysis of frame slotted ALOHA algorithm, put forward a frame slot ALOHA algorithm based on label grouping. The algorithm is mainly divided into two process tag grouping and tag identification, the cyclic redundancy check code label their own label (CRC code) after grouping, grouping, pseudo uniform random number using chaotic system, random selection of pseudo random labels as their occupation of the hundreds of each time slot number and start the identification tag, after reading a set of labels group, according to the recognition of the other group label packet. Theoretical analysis and simulation results show that both the number of tags is large or small, the improved algorithm has significantly improved.2 in recognition rate, this paper summarizes several common RFID security authentication protocol, aiming at the poor security agreement And the label costs are too high, the use of cyclic redundancy check code (CRC code) operation and logical operation simple presents a new lightweight RFID mutual authentication protocol dynamic security key update. Through the GNY logic to prove safety and performance analysis show that the protocol can achieve the predetermined goal, not only can effectively realize the bidirectional reading and writing between the certification and labelling requirements, but also can avoid eavesdropping attack, replay attack, attack and copy tags are tracking many safety problems. Compared with other existing protocols the same security level, the agreement on the hardware implementation of low complexity, low cost and security is a lightweight authentication protocol. According to anti-collision Technology and privacy and security authentication technology are two key technologies in RFID and multi label were carried out a comprehensive study, to a certain extent to solve the multi tag collision and The disclosure of security and privacy issues, and provides a meaningful reference for solving practical problems in the future.

【學(xué)位授予單位】：江西理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TP391.44;TP309

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