本文選題：數(shù)字化車間管理 + 數(shù)據(jù)加密��； 參考：《中國(guó)科學(xué)院大學(xué)(中國(guó)科學(xué)院沈陽計(jì)算技術(shù)研究所)》2017年碩士論文

【摘要】：基于互聯(lián)網(wǎng)+物聯(lián)網(wǎng)的車間管理系統(tǒng)使得車間管理者可以通過系統(tǒng)客戶端遠(yuǎn)程監(jiān)控整個(gè)車間機(jī)床設(shè)備運(yùn)行的實(shí)時(shí)狀態(tài)。數(shù)據(jù)由服務(wù)器向終端或終端傳輸?shù)椒⻊?wù)器傳輸過程中,數(shù)據(jù)信息容易被監(jiān)聽或者篡改,會(huì)造成信息泄露或數(shù)據(jù)顯示虛假數(shù)據(jù),如果在工控領(lǐng)域可能接收錯(cuò)誤的指令信息,從而給工業(yè)生產(chǎn)帶來巨大危害和損失,所以為了保證終端與服務(wù)器以及工業(yè)設(shè)備和管理系統(tǒng)之間網(wǎng)絡(luò)通信的可靠與數(shù)據(jù)安全,使用安全的通信連接和可靠的數(shù)據(jù)加密算法來保證通信和數(shù)據(jù)安全非常必要。與此同時(shí)合理的使用數(shù)字指紋摘要以保證加密數(shù)據(jù)的完整。所以可以實(shí)現(xiàn)多重加密,以提高工業(yè)設(shè)備系統(tǒng)與車間管理系統(tǒng)以及終端設(shè)備管理系統(tǒng)的通信和數(shù)據(jù)安全。本文以數(shù)字化車間管理系統(tǒng)為基礎(chǔ)原型,以Android客戶端和IOS端為示例原型。提出了一種基于改進(jìn)的AES和MD5混合加密方案,在通訊過程中使用SSL對(duì)傳輸通道進(jìn)行連接加密,使用改進(jìn)的對(duì)稱加密算法AES對(duì)網(wǎng)絡(luò)傳輸中的數(shù)據(jù)進(jìn)行加密,并且在發(fā)送端加密數(shù)據(jù)后使用改進(jìn)的MD5對(duì)加密的數(shù)據(jù)生成數(shù)字指紋,在接收端同時(shí)對(duì)發(fā)過來的加密數(shù)據(jù)使用MD5生成相同指紋,通過摘要指紋效驗(yàn)判斷數(shù)據(jù)在傳輸過程中是否被篡改或丟失。測(cè)試結(jié)果顯示,多重加密方案成功的實(shí)現(xiàn)了端到端的數(shù)據(jù)加解密,對(duì)于性能和網(wǎng)絡(luò)損耗不高于15%,符合工業(yè)控制系統(tǒng)實(shí)時(shí)的要求,因此此方案適用于消除車間管理系統(tǒng)實(shí)時(shí)采集的數(shù)據(jù)在端到端的通訊傳輸中被篡改的可能,極大可能的提高了車間管理系統(tǒng)通訊和數(shù)據(jù)的安全性和可靠性。
[Abstract]:The workshop management system based on Internet of things (IoT) enables workshop managers to remotely monitor the real-time state of the whole workshop machine tool equipment through the system client.When the data is transmitted from server to terminal or terminal to server, the data information is easy to be monitored or tampered with, which may cause information leakage or data display false data, if the wrong instruction information may be received in the field of industrial control,Therefore, in order to ensure the reliability and data security of network communication between terminal and server, industrial equipment and management system,It is necessary to use secure communication connection and reliable data encryption algorithm to ensure communication and data security.At the same time, digital fingerprint digest is used reasonably to ensure the integrity of encrypted data.So we can realize multiple encryption to improve the communication and data security of industrial equipment system, workshop management system and terminal equipment management system.This paper takes the digital workshop management system as the base prototype and the Android client and IOS as the sample prototype.In this paper, a hybrid encryption scheme based on improved AES and MD5 is proposed. In the process of communication, SSL is used to encrypt the transmission channel, and the improved symmetric encryption algorithm, AES, is used to encrypt the data in network transmission.After encrypting the data at the sending end, the improved MD5 is used to generate the digital fingerprint for the encrypted data, and the same fingerprint is generated using MD5 for the encrypted data sent at the receiving end at the same time.Fingerprint verification is used to determine whether the data is tampered with or lost during transmission.The test results show that the multiplex encryption scheme successfully realizes end-to-end data encryption and decryption, and the performance and network loss are not higher than 15, which meet the real-time requirements of industrial control system.Therefore, this scheme is suitable for eliminating the possibility that the real-time data collected by workshop management system can be tampered with in end-to-end communication transmission, and the security and reliability of the communication and data of workshop management system can be greatly improved.
【學(xué)位授予單位】：中國(guó)科學(xué)院大學(xué)(中國(guó)科學(xué)院沈陽計(jì)算技術(shù)研究所)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP309

【參考文獻(xiàn)】

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本文編號(hào)：1756887