TWI354911B - Digital data protection system using electric key - Google Patents

Digital data protection system using electric key Download PDF

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Publication number
TWI354911B
TWI354911B TW96112066A TW96112066A TWI354911B TW I354911 B TWI354911 B TW I354911B TW 96112066 A TW96112066 A TW 96112066A TW 96112066 A TW96112066 A TW 96112066A TW I354911 B TWI354911 B TW I354911B
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Taiwan
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electronic key
encryption
digital
data protection
digital content
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TW96112066A
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Chinese (zh)
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TW200841211A (en
Inventor
Realman Wang
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Inventec Besta Co Ltd
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1354911 九、發明說明: 【發明所屬之技術領域】 本發明係提供一種利用電子鑰匙之數位資料保護系統 及其方法,特別是使用於具有熱插拔介面的電子鑰匙,以 辨認電子裝置中數位内容的合法性。 【先前技術】 目前,對於書籍方面的内容,習知大多是用影印的方 式來複製其内容。而影像、音樂方面知識類的内容則以用 錄影帶及錄音帶的方式來複製其内容。習知的這兩種複製 方式會隨著複製的次數越多,而使的原有内容的品質劣 化。隨著電子數位化技術的演進,不管是書籍或影像或音 樂複製再多次其品質仍是和原來的一樣,因此對於多樣化 的數位内容之要求也日益殷切。 現況政府對於有關數位内容相關之智慧財產權保護法 令尚未建制完善。當使用者購買一套數位化的數位内容產 品時,為了避免損毁可以自行備份以備不時之需,這是合 法的行為。猶如所有的軟體授權規則一樣,使用者是可以 複製的。但是,所有的數位内容業者只希望在同一時間僅 能有一個使用者使用其數位内容。就好像是書本一樣,使 用者買了一本書可以借給許多人看,但是,在同一時間只 能有一個人閱讀的概念是一樣的,也就是說使用者所複製 的數位内容可以使用於不同的載具播放,但業者又希望於 同一時間只能有一份數位内容被使用者觀賞。這是目前數 5 1354911. 位内容業者’如何去避免數位產品被複製 產是業者所關注的;而對使用者而言花了錢所 位内容,如何保障其資產安全性也是=回=數 於業者與使用者這兩門沾相、土工μ β 要的。但疋, 讓使用者輕易複製,突的。如果能 容分送給其他人, 保護較脆弱,如讓佶田未了 At 致位内令的實體1354911 IX. Description of the Invention: [Technical Field] The present invention provides a digital data protection system using an electronic key and a method thereof, in particular, an electronic key having a hot plug interface for identifying digital content in an electronic device Legitimacy. [Prior Art] At present, for the contents of books, most of the conventional methods use photocopying to copy their contents. In the case of video and music, the content of the content is copied by means of video tapes and audio tapes. These two types of copying methods will deteriorate the quality of the original content as the number of times of copying increases. With the evolution of electronic digitization technology, the quality of books or video or music reproduction is still the same as the original, so the requirements for diversified digital content are increasingly strong. Current situation The government has not yet established a system for the protection of intellectual property rights related to digital content. When a user purchases a set of digital digital content products, it is legal to avoid backing up for damages in case of damage. As with all software authorization rules, users can copy them. However, all digital content providers only want one user to use their digital content at the same time. Just like a book, a user who buys a book can lend it to many people, but at the same time, only one person can read the same concept, that is, the digital content copied by the user can be used differently. The vehicle is played, but the operator hopes that only one digital content can be viewed by the user at the same time. This is currently the number 5 1354911. The content industry 'how to avoid the digital product being copied is the concern of the industry; and the user spends money on the content, how to protect its asset security is also = back = number The two sides of the industry and the user are in contact with each other. But hey, let the user easily copy, suddenly. If it can be distributed to other people, the protection is more fragile, such as leaving Putian unattended.

障其所購買數位内容^對使用者又無法保 使用者之間的產產:*刖,數位内容業者解決與 碼搭配數位时光碟 吏用序歹】 碟片連同序列碼-同流:時 ,了,或禁止使用者複製數位内容光;== 者將數位内容光碟毁損_傷,使用者又必 容光m ’對數位内容光碟片進行 但疋限定媒體载具對使聽也是不方便,對於同樣-份數 ’使用者可能輕林同時候料_具來觀賞, =㈢本或CD片-樣借給別人(沒有人借別人⑦還要連同音 曰义借的)’因此,這種保護方法就行不通了。因此,如何克服 對於數位内容的保護,且又同時能兼顧數位内容供應端 ”便用者間兩者_權益’是為當前數位内容#者峨切期望的。 ^為滿足上述對於數位内業者與使用者兩者間之需求, 所$出的利用電子鑰匙之數位資料保護系統及其方法以解 省★技藝之缺點,本發明人基於多年從事研究與諸多實 務經驗,經多方研究設計與專題探討,遂於本發明提出一 種利用電子鑰匙之數位資料保護系統及其方法,以作為前 6 135491!· 述期望一實現方式與依據 【發明内容】 有鐘於上述課題,本發明之目的為提供一種利 _之—保護系統及其方法’特別是使用於且有轨 插拔介面的電子錄匙,以辨認電子心中數位内容的合= 性。 緣是,為達上述目的,依本發明之 =Γί系ί用於避免一數位内容被盗拷,此數:資料 保濩系統至少包含一電子鑰匙及一供庫 貝付 起具有-第-加/解密單元及一序‘U端= 解密單元對應之-第二加/解密單 谷。其中,藉由電子鑰匙提供之序列螞 加/解密單元係依據序列碼對數位内容進行加密:並且^ 加/解密單元將佐以序列喝對已加密之數:内 备一i達上述目的,依本發明所提出之電子鑰匙,用以避 =一數位^容被盜拷,此電子鑰匙至少包含一儲存媒介、 乂/^密程式、—序列碼、—加/解密單元及—傳輸介面。 二,二一加/解密程式與一序列碼,儲存於儲存媒介中。接 單元,執密程式對所發送之序列碼 行解密。所接收 數㈣容佐以序列喝進 么取後,一傳輸介面,用以發送或接收已 列物收已加密之數位内容。 *之序 為達上述目的,依本發明之電子鑰匙之數位資料保護 7 丄354911 Ϊ;包數位内容被盜拷,此數”料保護方法 ⑴元及 (2)=;::r第此〜有與第-内容;早兀對應之-弟二加/解密單元及數位 ⑶依據序列娜數位内容進行加密. ⑷發送已加密之數_容至電匙 ⑸利用電子鑰匙之第-加/解密單及 對已加密之數位内容進佐以序列碼 功效肢所達成之 r 圖式 μ 難 【實施方式】 下為讓本發明之上述目的、特徵和優點能更明顯易懂, 法,依本發明之利用電子鑰匙之數位資料保護系統及其方 如特舉較佳實施例’並配合所附相關圖式,作詳細說明 下其中相同的元件將以相同的元件符號加以說明。 科< Γ參聞第1圖,係顯示本發明利用電孑鑰匙之數位資 系/蠖系統之方塊示意圖。圖中,電子鑰匙數位資料.保護 ^至少包含一電子鑰匙】丨及一供應端12。其尹,電 鑰匙11具有一第一加/解密單元〗12及〆序列碼hi。 8 1354911 則’供應端12具有與第一加/解密單元112對應之一第_ 加/解密單元121及一數位内容122。其中,藉^電子输^ 11提供之序列碼111’使供應端12之第二加/解密單元l2i 係依據序列碼111對數位内容122進行加密,並且電子 匙11之第一加/解密單元112將佐以序列碼lu對已加θ 之數位内容122進行解密。 在 上述之第一加/解密單元112或第二加/解密單元 二:儲存媒介113(顯示於第二圖)連結,則此儲存媒介 存有—加/解密程式1131(顯示於第二圖)。 、 念述讀位内容122 —般包括為—影音多媒體槽、一 戲;供應端〗? 一勒主杳( ㈢A ^•細遊 匙U 内請之網站飼服器;電子鑰 流排_)介面或_削介面; 力二_或唯讀記憶體,·第-力·密單以2 一加/解密單元121 —般為具有—m機U 2或第 圖 請參閱第2圖,係 圖中,電子鑰匙= ^ = 1子鑰匙之方塊示意 此電子鑰匙11至少包人用避免數位内容122被盜拷, ⑽、一序歹㈣Gr;儲存,⑴、一加/解密程式 114。其中,一加/解密浐D =密單兀112及一傳輸介面 儲存媒介113中。接著王,式1131與一序列碼111 ,儲存於 密程式1131對所發送皮一加/解密單元Π2 ’執行加/解 之已加密之數位内容2歹1碼11]進行加密,或對所接收 ―傳輸介面114,用^送進行解密。最後, 4接收已加岔之序列碼1Π或 9 1354911 接收已加密之數位内容122。 . 上述之數位内容122 —般包括為一影音多媒體檔、一 . 電子書、一電腦遊戲或一數位解密索引,其中數位解密索 引更可進一步用以開啟影音多媒體檔、電子書或電腦遊 戲;供應端12 —般為數位内容122之網站伺服器;傳輸介 面114 一般為一熱插拔介面,則此熱插拔介面一般包括為 一萬用序列匯流排(USB)介面或IEEE 1394介面;儲存媒介113 包括為快閃記憶體或唯讀記憶體;加/解密單元112 —般為 • 具有一 RSA機制晶片。 請參閱第3圖,係顯示本發明之利用電子鑰匙之數位 資料保護方法之流程圖。圖中,此電子鑰匙之數位資料保 護方法至少包含步驟如下: (531) 提供一電子鑰匙,係具有一第一加/解密單元 及一序列碼; (532) 發送序列碼至一供應端,此供應端具有與第一 加/解密單元對應之一第二加/解密單元及數位 • 内容; (533) 依據序列碼對數位内容進行加密; (534) 發送已加密之數位内容至電子鑰匙;以及 (535) 利用電子鑰匙之第一加/解密單元,佐以序碼 對已加密之數位内容進行解密。 上述之數位内容122 —般包括為一影音多媒體檔、一 電子書、一電腦遊戲或一數位解密索引,其中數位解密索 引更可進一步用以開啟影音多媒體檔、電子書或電腦遊 戲;供應端12 —般為數位内容122之網站伺服器;電子鑰 1354911 匙11具有一熱插拔介面,則此熱插拔介面一般包括為一萬 用序列匯流排(USB)介面或IEEE 1394介面;儲存媒介113 包括為快閃記憶體或唯讀記憶體;第一加/解密單元112 或第二加/解密單元121 —般為具有一 RSA機制晶片。 以上所述僅為舉例性,而非為限制性者。任何未脫離 本發明之精神與範疇,而對其進行之等效修改或變更,均 應包含於後附之申請專利範圍中。 【圖式簡單說明】 第1圖係顯示本發明利用電子鑰匙之數位資料保護系統 之方塊示意圖; 第2圖係顯示本發明之電子鑰匙之方塊示意圖;以及 第3圖係顯示本發明之利用電子鑰匙之數位資料保護方 法之流程圖。 【主要元件符號說明】 I :電子鑰匙之數位資料保護系統; II :電子鑰匙; III :序列碼; 112 :第一加/解密單元; 113 :儲存媒介; 1131 :加/解程式 114 :傳輸介面; 12 :供應端; 11 1354911The digital content purchased by the user does not guarantee the production between the users: *刖, the digital content provider solves the problem with the code when the digital video is used. When the disc is combined with the serial code-same stream: , or prohibit the user from copying the digital content light; == the digital content disc is damaged _ injury, the user must also allow the light to carry out the digital content disc, but the media carrier is not convenient for listening, for the same - The number of copies 'users may be light forests at the same time _ come to watch, = (three) this or CD-like - lend to others (no one borrows others 7 also with the sound of the right to borrow) 'So, this protection method It won't work. Therefore, how to overcome the protection of digital content, and at the same time can take into account the digital content supply side "both users - the rights" is the desired for the current digital content # ^ to meet the above for digital insiders and The demand between the users, the digital data protection system using the electronic key and its method to solve the shortcomings of the technique, the inventor based on years of research and many practical experience, through multi-party research design and special discussion According to the present invention, a digital data protection system using an electronic key and a method thereof are proposed as the first 6 135 491! The present invention is based on the above-mentioned problems, and the object of the present invention is to provide a _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ System ί is used to avoid theft of a digital content. This number: the data protection system contains at least one electronic key and one for Kube to pay with -first-plus/solution The unit and the sequence 'U terminal=the decryption unit correspond to the second encryption/decryption unit. The sequence encryption/decryption unit provided by the electronic key encrypts the digital content according to the sequence code: and ^add/decrypt The unit will be accompanied by a sequence of drinking the encrypted number: the internal purpose of the above-mentioned purpose, according to the invention, the electronic key is used to avoid = a number of contents to be stolen, the electronic key contains at least one storage medium,乂 / ^ secret program, - serial code, - encryption / decryption unit and - transmission interface. Two, two encryption / decryption program and a serial code stored in the storage medium. Connected to the unit, the program sent to the sequence The code line is decrypted. The received number (4) is received by the sequence, and a transmission interface is used to send or receive the encrypted digital content. The order is for the above purpose, the electronic device according to the invention The digital data protection of the key is 7 丄 354911 Ϊ; the digital content of the package is stolen, and the number of materials protection method (1) yuan and (2) =;::r the first ~ there and the first - content; early 兀 corresponding - brother two Add/decrypt unit and digits (3) according to the sequence of digits Line Encryption. (4) Sending the encrypted number _ to the key (5) using the electronic key's first-encryption/decryption list and the encrypted digital content into the serial code effect limb achieved by the r pattern μ difficult [implementation The above objects, features and advantages of the present invention will become more apparent and easy to understand, and the digital data protection system using the electronic key according to the present invention and its preferred embodiment will be combined with the accompanying drawings. In the detailed description, the same elements will be described with the same element symbols. Fig. 1 is a block diagram showing the digital system/蠖 system of the present invention using an electric key. In the figure, the electronic key digital data. Protection ^ includes at least one electronic key 丨 and a supply terminal 12. Its Yin, the electric key 11 has a first encryption/decryption unit 12 and a serial sequence code hi. 8 1354911 Then the 'supply terminal 12' has a first _addition/decryption unit 121 and a digital content 122 corresponding to the first encryption/decryption unit 112. The second encryption/decryption unit l2i of the supply terminal 12 encrypts the digital content 122 according to the serial code 111, and the first encryption/decryption unit 112 of the electronic key 11 is encrypted by the serial code 111' provided by the electronic transmission 11. The digital content 122 to which θ has been added will be decrypted with the sequence code lu. In the above-mentioned first encryption/decryption unit 112 or the second encryption/decryption unit 2: storage medium 113 (shown in the second figure), the storage medium stores an encryption/decryption program 1131 (shown in the second figure). . The reading content 122 is generally included as a video multimedia slot, a play; a supply end? A Le main 杳 ( (3) A ^ • 细 游 key U inside the website feeding device; electronic key flow _) interface or _ cutting interface; force two _ or read-only memory, · the first force · secret single to 2 An encryption/decryption unit 121 generally has a -m machine U 2 or a picture. Please refer to FIG. 2, in the figure, an electronic key = ^ = 1 sub-key block indicates that the electronic key 11 is at least used to avoid digital content. 122 is stolen, (10), first order (four) Gr; storage, (1), one add/decrypt program 114. Among them, an add/delete 浐 D = a secret 兀 112 and a transport interface storage medium 113. Then, the king, the formula 1131 and a sequence code 111 are stored in the secret program 1131 to encrypt the encrypted digital content 2歹1 code 11] which is sent/added/decomposed, or received. The "transport interface 114" is decrypted by using ^. Finally, 4 receives the encrypted sequence code 1Π or 9 1354911 to receive the encrypted digital content 122. The above-mentioned digital content 122 generally includes an audio-visual multimedia file, an e-book, a computer game or a digital decryption index, wherein the digital decryption index can be further used to open an audio-visual multimedia file, an e-book or a computer game; The terminal 12 is generally a web server of the digital content 122; the transmission interface 114 is generally a hot plug interface, and the hot plug interface generally includes a universal serial bus (USB) interface or an IEEE 1394 interface; 113 is included as a flash memory or a read-only memory; the encryption/decryption unit 112 is generally provided with an RSA mechanism chip. Referring to Fig. 3, there is shown a flow chart of a method for protecting digital data using an electronic key of the present invention. In the figure, the digital data protection method of the electronic key includes at least the following steps: (531) providing an electronic key having a first encryption/decryption unit and a serial code; (532) transmitting the serial code to a supply terminal, The supply end has a second encryption/decryption unit corresponding to the first encryption/decryption unit and digits; content; (533) encrypting the digital content according to the serial code; (534) transmitting the encrypted digital content to the electronic key; (535) Using the first encryption/decryption unit of the electronic key, the encrypted digital content is decrypted by the serial code. The above-mentioned digital content 122 generally includes an audio-visual multimedia file, an electronic book, a computer game or a digital decryption index, wherein the digital decryption index can be further used to open an audio-visual multimedia file, an e-book or a computer game; Generally, the web server of the digital content 122; the electronic key 1354911 key 11 has a hot plug interface, and the hot plug interface generally includes a universal serial bus (USB) interface or an IEEE 1394 interface; the storage medium 113 It is included as a flash memory or a read-only memory; the first encryption/decryption unit 112 or the second encryption/decryption unit 121 generally has an RSA mechanism chip. The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the present invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a digital data protection system using an electronic key according to the present invention; FIG. 2 is a block diagram showing an electronic key of the present invention; and FIG. 3 is a view showing an electronic use of the present invention. A flow chart of the digital data protection method for the key. [Description of main component symbols] I: digital data protection system for electronic key; II: electronic key; III: serial code; 112: first encryption/decryption unit; 113: storage medium; 1131: addition/solution program 114: transmission interface ; 12: supply side; 11 1354911

121 :第二加/解密單元; 122 :數位内容;以及 S31〜S35 :步錄。 12121: second encryption/decryption unit; 122: digital content; and S31~S35: step recording. 12

Claims (1)

1354911 十、申請專利範圍: 1、 一種利用電子鑰匙之數位資料保護系統,係用於避 免一數位内容被盜拷,該數位資料保護系統至少包 含: 一電子鑰匙,係具有一第一加/解密單元及一序列 碼;以及 一供應端,係具有與該第一加/解密單元對應之一第 二加/解密單元及該數位内容; 其中,藉由該電子鑰匙提供之該序列碼,使該供應 端之該第二加/解密單元係依據該序列碼對該數位 内容進行加密,該電子鑰匙之該第一加/解密單元係 佐以該序列碼對已加密之該數位内容進行解密。 2、 如申請專利範圍第1項所述之利用電子鑰匙之數位 資料保護系統,其中該數位内容係包括為一影音多 媒體檔、一電子書、一電腦遊戲或一數位解密索引。 3、 如申請專利範圍第2項所述之利用電子鑰匙之數位 資料保護系統,其中該數位解密索引係用以開啟該 影音多媒體檔、該電子書或該電腦遊戲。 4、 如申請專利範圍第1項所述之利用電子鑰匙之數位 資料保護系統,其中該供應端係為該數位内容之網 站伺服器。 5、 如申請專利範圍第1項所述之利用電子鑰匙之數位 資料保護系統,其中該電子鑰匙具有一熱插拔介面。 6、 如申請專利範圍第5項所述之利用電子鑰匙之數位 資料保護系統,其中該熱插拔介面包括為一萬用序 13 1354911 列匯流排(USB)介面或IEEE 1394介面。 如申請專韻圍第〗销狀㈣ 貧料保護系統’其中該第一加 =數位 :=與-儲存媒介連結,該儲存Si二 如申請專利範圍第7項所述之利 資料保護系統,其中該 】:鑰畦之數位 體或-唯讀記憶體。i括為—快閃記憶 Ξ = 項所述之利用電子錄匙之數位 10 1抑_加/解密單元或該第二加 /解在旱兀具有一 RSA機制晶片。 含用以避免-數位内容被盜拷,該電 一儲存媒介; -力Π/解密程式,係儲存於 一序列碼’係儲存於該儲存媒/中媒中, 一加/解密單元,倍& — 該序列碼進行加密、,執二=== 内容佐以該序列竭進行解密=已加㈣數位 一傳輸介面,用以欢、.,上 11 接收已加密之c已加密之該序列碼或 如申請專利範圍莖]Λ ^ 位内容係包括為f a 1子麟,其中該數 腦遊戲或-c體標、-電子書、-電 如申請專贿IUU項所叙電切匙,其中該數 14 12 1354911 位解密索引係用以開啟該影音多媒體檔、該電子書 或該電腦遊戲。 13、 如申請專利範圍第10項所述之電子鑰匙,其中該傳 輸介面係為一熱插拔介面。 14、 如申請專利範圍第13項所述之電子鑰匙,其中該熱 插拔介面包括為一萬用序列匯流排(USB)介面或IEEE 1394介面。 15、 如申請專利範圍第10項所述之電子鑰匙,其中該儲 • 存媒介包括為一快閃記憶體或一唯讀記憶體。 16、 如申請專利範圍第10項所述之電子鑰匙,其中該加 /解密單元具有一 RSA機制晶片。 17、 一種利用電子鑰匙之數位資.料保護方法,係用於避 免一數位内容被盜拷,該數位資料保護方法至少包 含: 提供一電子錄匙,係具有一第一加/解密單元及一序 列碼; • 發送該序列碼至一供應端,該供應端係具有與該第 一加/解密單元對應之一第二加/解密單元及該數位 • 内容; • 依據該序列碼對該數位内容進行加密; 發送已加密之該數位内容至該電子鑰匙;以及 利用該電子鑰匙之該第一加/解密單元,佐以該序列 碼對已加密之該數位内容進行解密。 18、 如申請專利範圍第17項所述之利用電子鑰匙之數 位資料保護方法,其中該數位内容係包括為一影音 15 1354911 多媒體檔、一電子書、一電腦遊戲或一數位解密索 引。 19、 如申請專利範圍第18項所述之利用電子鑰匙之數 ' 位資料保護方法,其中該數位解密索引係用以開啟 該影音多媒體檔、該電子書或該電腦遊戲。 20、 如申請專利範圍第17項所述之利用電子鑰匙之數 位資料保護方法,其中該供應端係為該數位内容之 網站伺服器。 • 21、如申請專利範圍第17項所述之利用電子鑰匙之數 位資料保護方法,其中該電子鑰匙具有一熱插拔介 面。 22、 如申請專利範圍第21項所述之利用電子鑰匙之數 位資料保護方法,其中該熱插拔介面包括為一萬用 序列匯流排(USB)介面或IEEE 1394介面。 23、 如申請專利範圍第17項所述之利用電子鑰匙之數 位資料保護方法,其中該第一加/解密單元或該第二 參 加/解密單元係與一儲存媒介連結,該儲存媒介存有 一加/解密程式。 • 24、如申請專利範圍第23項所述之利用電子鑰匙之數 ‘ 位資料保護方法,其中該儲存媒介包括為一快閃記 憶體或一唯讀記憶體。 25、如申請專利範圍第17項所述之利用電子鑰匙之數 位資料保護方法,其中該第一加/解密單元或該第二 加/解密單元具有一 RSA機制晶片。 161354911 X. Patent application scope: 1. A digital data protection system using an electronic key for avoiding theft of a digital content. The digital data protection system includes at least: an electronic key having a first encryption/decryption a unit and a serial code; and a supply end having a second encryption/decryption unit corresponding to the first encryption/decryption unit and the digital content; wherein the serial code provided by the electronic key causes the The second encryption/decryption unit of the supply end encrypts the digital content according to the serial code, and the first encryption/decryption unit of the electronic key decrypts the encrypted digital content with the serial code. 2. The digital data protection system using an electronic key as claimed in claim 1, wherein the digital content comprises an audio-visual multimedia file, an e-book, a computer game or a digital decryption index. 3. The digital data protection system using an electronic key as claimed in claim 2, wherein the digital decryption index is used to open the audio/visual multimedia file, the electronic book or the computer game. 4. The digital data protection system using an electronic key as claimed in claim 1 wherein the supply end is a web server of the digital content. 5. The digital data protection system using an electronic key as claimed in claim 1, wherein the electronic key has a hot plug interface. 6. The digital data protection system using an electronic key as claimed in claim 5, wherein the hot plug interface comprises a 10,000-level 13 1354911 bus (USB) interface or an IEEE 1394 interface. For example, if you apply for the special rhyme section, the pin-shaped (4) poor material protection system, where the first plus = digit: = is connected with the storage medium, the storage Si is as described in claim 7 of the patent protection scope, wherein The]: the key of the key or the read-only memory. i is included as - flash memory Ξ = the number of digits used in the electronic key record 10 1 _ _ add / decrypt unit or the second add / solution in the drought has an RSA mechanism wafer. In order to avoid - digital content is stolen, the electric storage medium; - force / decryption program, stored in a serial code ' stored in the storage medium / medium, an encryption / decryption unit, times &; — The serial code is encrypted, and the second === The content is decrypted by the sequence. The (four) digit-one transmission interface is added to the user. The upper 11 receives the encrypted c-encrypted serial code. Or as the scope of the patent application stems Λ ^ bit content is included as fa 1 Zilin, where the number of brain games or -c body standard, - e-books, - electricity such as the application of bribery IUU items, the key The number 14 12 1354911 bit decryption index is used to open the video multimedia file, the e-book or the computer game. 13. The electronic key of claim 10, wherein the transmission interface is a hot plug interface. 14. The electronic key of claim 13, wherein the hot plug interface comprises a 10,000 serial bus (USB) interface or an IEEE 1394 interface. 15. The electronic key of claim 10, wherein the storage medium comprises a flash memory or a read only memory. 16. The electronic key of claim 10, wherein the encryption/decryption unit has an RSA mechanism chip. 17. A digital material protection method using an electronic key for preventing a digital content from being copied. The digital data protection method at least includes: providing an electronic key, having a first encryption/decryption unit and a a serial code; • transmitting the serial code to a supply end, the supply end having a second encryption/decryption unit corresponding to the first encryption/decryption unit and the digital content; • the digital content according to the serial code Encrypting; transmitting the encrypted digital content to the electronic key; and using the first encryption/decryption unit of the electronic key to decrypt the encrypted digital content with the serial code. 18. The digital data protection method using an electronic key as claimed in claim 17, wherein the digital content comprises an audio and video 15 1354911 multimedia file, an electronic book, a computer game or a digital decryption index. 19. The method of protecting an electronic key using the electronic data key as described in claim 18, wherein the digital decryption index is used to open the audio and video multimedia file, the electronic book or the computer game. 20. The digital data protection method using an electronic key as claimed in claim 17, wherein the supply end is a web server of the digital content. • The digital data protection method using an electronic key as claimed in claim 17, wherein the electronic key has a hot plug interface. 22. The digital data protection method using an electronic key according to claim 21, wherein the hot plug interface comprises a universal serial bus (USB) interface or an IEEE 1394 interface. 23. The digital data protection method using an electronic key according to claim 17, wherein the first encryption/decryption unit or the second participation/decryption unit is coupled to a storage medium, and the storage medium stores / decryption program. • 24. The method of using the electronic key as described in claim 23, the data protection method, wherein the storage medium comprises a flash memory or a read-only memory. The digital data protection method using an electronic key according to claim 17, wherein the first encryption/decryption unit or the second encryption/decryption unit has an RSA mechanism chip. 16
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