本論文中研製一套國際珠寶證書(GIA)嵌入無線射頻識別系統與GIA數位證書鑑價服務系統，此系統包括電子履歷管理、GIA數位證書簽署者、群體簽署系統，以及把寶石飾品作層級分區的GIA數位證書。首先透過網際網路群體鑑價系統，建立了珠寶飾品鑑定的目錄，成為GIA數位證書鑑價憑證中心。
寶石飾品從珠寶製造商最後到消費者的手上，我們利用無線的標籤(rfid) 解決辨識珠寶實體符合數位證書所描述的特徵，降低不法人士偽造珠寶，珠寶飾品註冊後所產生無線射頻辨識標籤的序號具有唯一性，GIA數位證書所鑑定出珠寶的價值與群體簽署的資訊都記錄在rfid裡，並證明此珠寶價值的數位證書確保訊息傳遞中完整性與真實安全性。除了加強GIA國際證書的防偽功能與防污辨識力，有效的保障珠寶擁有者及購買者之權益，另外我們藉由電子履歷的管理，不僅能維護交易的安全，更能有效的追朔歷史流通的紀錄，以查驗珠寶交易的真確性，保障消費者權益。
在珠寶交易群體的簽署系統裡，是採用群體共同的簽署者與群體共同的驗證者，本研究的方法利用Lagrange多項式內插法驗證出簽署者的簽署資訊，針對同一份數位證書，簽署出一份具有群體代表性的群體簽章，達到使用者身份之辨識性、交易之不可否認性、資料之完整性、資料之隱密性。此電子簽章與rfid機制可防止GIA國際證書本體、簽章被偽造及珠寶內容被變造。因此本研究的珠寶交易鑑價系統，的確改善了線上珠寶交易供應鏈上的安全問題。

In this paper, we proposed an international GIA Diamond Grading identification with embedded the authenticated radio frequency identification (RFID) for Internet Gemological Identification Services. The proposed system includes the electronic pedigree system, the GIA diamond grading signer, the group signature system, and the GIA Diamond Grading identification and verification system. At first, the proposed system provides a digital Gemological Identification Report Directory as the GIA verification system. The gemological owner can verify the Diamond and the certification thought the Internet. It allows the end user to easily verify the authenticity of the diamond at the item level. The signatures of the GIA Diamond Grading identification information are wrapped and embed into the RFID tag It embeds the specified serial numbers of the GIA Diamond Grading identification as the digital certification into the RFID tag to achieve the information security objectives of non-repudiation, integrity and security. This system authority can use the traitor tracing of the GIA electronic pedigree system to revoke the certification. We proposed the group signature and the group verifier in the group signature system. We also implement Lagrange multinomial in our scheme to enhance RFID and Electronic GIA Pedigree system security. The GIA diamond group signer system provides user identification, non-repudiation, integrity and security by a digital Gemological Identification. With the proposed digital Gemological Identification system for Internet transaction, it can help prevent counterfeits, aid product recall, and improve the security of the general supply chain.

摘要.....................................................II
Abstract.................................................IV
目錄......................................................V
表錄...................................................VIII
圖錄.....................................................IX
一、緒論..................................................1
1.1研究背景...........................................1
1.2研究動機...........................................3
1.3研究目的...........................................3
1.4研究架構...........................................4
二、文獻探討..............................................6
2.1 DRM系統的交易流程.................................6
2.2 DRM系統的安全機制.................................7
2.2.1 DRM系統的鑑別加密法..........................8
2.2.2 DRM系統的數位浮水印.........................10
2.2.3 DRM系統的數位簽章...........................12
2.2.4 DRM系統的時戳機制...........................13
2.3群體驗證演算法....................................14
2.4無線射頻辨識（RFID）防偽探討.......................16
2.4.1 EPC與EPC Network............................17
2.4.1 RFID的防偽安全管理..........................19
三、GIA線上珠寶交易安全防偽辨識之DRM系統................20
3.1 GIA線上珠寶交易系統架構...........................20
3.1.1 RFID防偽鑑識流程機制........................22
3.2 GIA線上珠寶鑑識機制...............................23
3.2.1珠寶擁有者認證機制...........................26
3.2.2數位證書的數位權利發行階段...................27
3.2.3數位證書的數位權利組合階段...................29
3.3 GIA線上珠寶交易流程機制...........................30
3.3.1數位證書的數位權利轉移階段...................32
3.3.2數位證書的數位權利清算階段...................34
3.4電子標籤與GIA數位證書結合的群體驗證機制...........35
四、分析與討論............................................39
4.1系統建置環境......................................39
4.2系統實作展示......................................39
4.3安全性分析........................................43
五、結論與未來發展.......................................47
5.1結論與研究貢獻....................................47
5.2研究範圍..........................................48
5.3未來發展..........................................48
參考文獻.................................................49

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