CN1240066C - 有数据保护区的可记录存储介质 - Google Patents
有数据保护区的可记录存储介质 Download PDFInfo
- Publication number
- CN1240066C CN1240066C CNB018015727A CN01801572A CN1240066C CN 1240066 C CN1240066 C CN 1240066C CN B018015727 A CNB018015727 A CN B018015727A CN 01801572 A CN01801572 A CN 01801572A CN 1240066 C CN1240066 C CN 1240066C
- Authority
- CN
- China
- Prior art keywords
- data
- district
- system data
- stored
- storage medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
- G11B20/00123—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of the record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00188—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/0026—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored as a barcode
- G11B20/00268—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored as a barcode said barcode being recorded in a burst cutting area [BCA]
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/00326—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being embossed on the record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/00384—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being derived from a physical signature of the record carrier, e.g. unique feature set
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
- G11B20/00405—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored by varying characteristics of the recording track, e.g. by altering the track pitch or by modulating the wobble track
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00485—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
- G11B20/00557—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein further management data is encrypted, e.g. sector headers, TOC or the lead-in or lead-out areas
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
- G11B20/00898—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm based on a hash function
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
- G11B2020/1229—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc lead-in area
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
- G11B2020/1259—Formatting, e.g. arrangement of data block or words on the record carriers on discs with ROM/RAM areas
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/216—Rewritable discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2545—CDs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
- G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Bioethics (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
- Storage Device Security (AREA)
Abstract
本发明涉及一种数据存储方法,该方法将可重写数据存储介质上的数据存储到相应的存储介质,存储到相应的记录装置以及相应的重放装置。复制保护措施要求,在可重写存储介质上必须存储某些数据,而这些数据非用户的终端产品将不能修改或抹掉。实际问题是大量的这类数据要存储在固定数据区。一般其容量限制在几位。同时,需要存储的复制保护数据数量可能大大超出在只读固定数据区能够得到的存储能力。因此,本发明提高把复制保护数据作为***数据,例如作为介质(1)格式化部分写入可记录数据区(4)。计算密码提要并同时存储在可记录数据区(32)或固定数据区(2),这样就提供了固定数据区(2)和***数据区(3)之间的密码关系。重放或重放装置将只接受具有复制保护数据与固定数据有效组合的存储介质。
Description
本发明涉及一种数据存储方法。该方法将可重写数据存储介质上的数据存储到存储介质,存储到将数据存储在可重写数据存储介质上的记录装置,存储到将存储在可重写数据存储介质上的用户数据重放的重放装置。
本发明阐述的存储介质,用户可在其上面存储有版权的和任意复制(copy-free)的材料。通常用户有权存储和复制存储信息,但是他能复制(生成)的数目存在限制。使用加密来确保享有版权的存储信息只能由遵守复制保护限制的“服从(compliant)”装置进行翻译。需要进一步的保护以避免非服从装置能够按位复制加密数据。把重要信息,例如解密密匙以不可能被复制的方式存储起来常常能避免加密数据的复制。
更一般地结论是复制保护措施要求,在可记录盘上必须存储一些数据,这些数据靠用户的终端产品将不能修改或抹掉。这些数据在下面将称为“***数据”。“***数据”的实例是:
-特有的盘标识号码,它用来对用户在该盘上存储的数据加密,
-由单个密匙组成的清单,该密匙已用几个不同制造厂商特有的或装置特有的密匙加过密,
-被清除装置或被清除盘的电子序号清单。把这样的清单存储到所有的空盘上,清除指令就能传播给用户装置。一旦收到这样的清除指令,服从装置就拒绝与被清除装置联络。
用户记录的内容或数据在下面将称为“用户数据”。此外,术语“固定数据区”将用于这样的存储介质区,在该区中存储的任何信息都是只读的而且不能由用户装置进行修改。相反地,在“可记录数据区”存储的信息能够由用户装置修改。同样,在恶意用户已对用户装置做了某些修改(“黑客”)后只能由该装置写入数据将存储在可记录数据区。这样的修改可能成为控制记录器的固件或软件中的变化。
在固定数据区存储数据要求使用一些部件,这些部件一般在用户装置中是无法得到的。存储这种数据的一个技术实例就是“波动法(wobble)”,它是使槽位或预留纹道自完善的螺旋纹产生径向偏离的方法。物理学和力学定律都禁止把这样的波动像光盘用户可记录器中可用的那样匆忙地用激光写入。在固定数据区存储的其他数据实例有推荐给DVD-ROM的BCA代码或数据,代码是用大功率激光在盘材料上有选择烧制的一些破损点,数据是存储在含只读材料的盘特别区中的数据。
实际问题是在固定数据区存储大量数据的问题。通常其容量限制在几(几百)位。另一方面,需要存储的***数据可能会大大超过固定数据区中具备的存储能力。
因此,本发明的目的就是提供一种在可重写数据存储介质上存储数据的方法,依照此法上述问题被克服了,此法还使大量***数据的存储能以抗窜改的方式进行。另外,将提供相应的存储介质,相应的可记录装置以及相应的记录装置。
按照本发明,使用权利要求1或2中提出的方法,权利要求9或10提出的存储介质,权利要求12或13中提出的记录装置以及权利要求14或15提出的重放装置,这些目的都达到了。
本发明主要是基于这样一种思想,即在固定数据区中存储的数据与***数据之间存在某种密码关系。这种关系是通过密码提要(cryptographic summary)形成的,而密码提要根据本发明则是由***数据单独或***数据与标识数据一起生成的,标识数据可以是存储在固定数据区的一个随机数。记录或重放装置使用此密码提要探测***数据是否已被窜改,例如被抹掉或修改,以便控制存储介质的复制保护。因而密码提要也用来验证***数据,这就意味着一旦验证失败,存储介质之存储信息的读出或记录就能够停止。
按照第一种解决办法,***数据被写入可记录数据区,例如作为存储介质格式化部分被写入。密码提要例如密码散列(cryptographichash)是在***数据范围内计算的,而该密码提要的结果,例如该散列的结果则被存储在固定数据区。这样记录装置将只接受具有***数据与固定数据如密码提要有效组合的存储介质。
按照另一种解决办法,标识数据,例如随机数,生成并存储在固定数据区。因而可记录数据区已含用户数据,***数据,以及***数据与标识数据例如其电子签名的密码提要。记录或重放装置将使用验证器(例如公开密匙)检验密码提要,***数据以及标识数据的有效性,亦即将检验签名的有效性。取代使用电子签名,可以使用信息证实代码(MAC)进行验证,它比较便宜但安全性较差。
在本发明的一个优选实施方案的方法中,在可记录数据区密码提要的生成和***数据存储都是作为存储介质格式的部分进行的。
本发明的其他优选实施方案均公开于相关的权利要求中。
本发明及其优选实施方案在下文中将参照附图进行更详细的说明,附图中
图1示出依照第一实施方案的记录方法,
图2示出依照第一实施方案的重放方法,
图3示出依照第二实施方案的记录方法,
图4示出依照第一实施方案的重放方法,
图5示出依照第三实施方案的记录方法,及
图6示出依照第三实施方案的重放方法。
图1示出示意图,它说明了依照本发明第一实施方案将数据存储在可重写数据存储介质上的方法。存储介质1,它可以是数据光学记录盘例如DVD或CD,被分成为只读固定数据区2和可记录数据区3、4,可记录数据区又再细分成***数据区3和用户数据区4。存储在固定数据区2中的数据,用户不能修改。固定数据区2的典型执行过程是将槽压入可重写盘,即是,部分可重写盘用作为CD-ROM或DVD-ROM介质。另一种执行过程是BCA(脉冲串切割区(Burst Cut Area)),一种处在极其靠近盘中心的条码图,该条码图在盘生产厂家用YAG激光器写入。第三种执行过程是把固定数据存储在预压槽(“槽-波动”)以径向位移或预留纹道(“预留纹道波动”)的径向位移中。
存储在可记录数据区3、4的数据能够由用户修改。尽管如此,***数据区还是保留给***数据,如像开头概述过的复制保护信息。可记录数据区最大部分4可以用来存储用户数据,例如音频或视频数据。
既然固定数据2区的容量有限,而数量不断增长的***数据又要存储并且不予修改,本发明提出将***数据存储在记录数据区3,并且在***数据和存储在固定数据区2且在随后的记录或重放过程中又不能修改的特殊信息之间建立密码关系。因此,***数据的密码提要使用生成设备5计算,它计算出本实施方案中***数据的散列。然后,该散列的加密可靠结果存储在固定数据区2。
图1所述方法最好在这样的记录装置上实施,该装置使用同样的或分立的记录设备把***数据和密码提要存储在空白介质上。
在如图2所示的重放装置中,存储在***数据区3中的***数据散列使用重放装置中包含类似的生成设备5进行计算。计算结果传送给重放装置中的验证设备6,验证设备6同时也收到从介质1的固定数据区读出的密码提要。如果该数密码提要与散列计算结果相等,验证就是成功的,用户数据的重放可以开始或继续,相反在验证失败后,播放就可以停止,因为***数据已***纵的概率很高。从介质中读出***数据和密码提要的读出设备来示出。
在实际认识中,介质1可以想象成为是(最初是空白的)DVD-RAM或CD-RW或某些其他可重写介质,这些介质有卖并含有已知盗版记录器,以下称为“顽皮(naughty)”记录器的在盘生产厂家已经写好的序号清单。DVD-RAM/CD-RW或其他介质的诚实用户使用此请单来拒绝重放这些记录器的记录,因为人们已经知道它们卷入了非法复制之中。这样的清单通常太长(一般多于1MB),不能存储在固定数据区(一般为几百位)。因此,该清单如同正规文件一样在生产厂中写在可重写介质上。为防止有人要抹掉或修改此清单,对清单的散列进行了计算。此散列比***数据短得多,因此在介质生产过程中就能很容易地写进固定数据区。这样,可靠的播放器在***介质时就会首先计算***数据的散列并用固定数据区中存储的散列对结果进行检查。若它们不相一致,***数据就已被窜改过了。
在这种基本形式中,***中的任何地方都不必使用密码保密(例如密码密匙)。但缺点是缺乏灵活性。这就意味着可重写介质上固定数据区的实际位数内容在工厂的生产盘的时候就永久地固定了。因而,应该保护的***数据的散列在盘生产之前就必须计算。如果***数据要改变,例如将更多的顽皮记录器加到清单上,那么散列改变。这样工厂就必须生产新介质,因为旧介质对新的***数据不再有正确的散列。还存在其他一些原因说明为什么***数据在盘生产和散列固定后应该改变或校正。
在图3和4所示的本发明第二实施方案中得到了更大的灵活性。按照这一实施方案,标识数据例如随机数,在介质生产过程中就存储在固定数据区。***数据区再细分为用于实际***数据的第一区31和用于存储密码提要的第二区32。此密码提要使用生成设备7算出的公开密匙签名算法来生成。其中标识数据和***数据的数字签名使用保密专有密匙K专有进行计算,向***数据是通过生成设备厂先用散列编过码的。这一计算还可以写成为
ED=E(散列(***数据,标识数据),专有密匙)其中ED表示额外数据(=密码提要),E表示公开密匙密码。算出的数字签名再作为密码提要存储在第二***数据区32。
在如图4所示的重放装置或记录装置中,***数据是首先通过在标识数据和***数据范围内计算散列,然后使用验证设备8中公开密匙签名验证算法和公开密匙K公开来进行验证,以检验数据区32中存储的签名的有效性。用来生产图3中数字签名的专有密匙必须保持保密,而用于图4所示重放或记录装置中验证工作的公开密匙可以自由分配,因为这种公开密匙在如图3所示的加密步骤中是毫无用处的。
第三实施方案图5和6予以说明。如同在第二实施方案中一样,标识数据存储在固定数据区2,实际***数据存储在***数据区31。为了加密,用生成设备9来生成密码提要,密码提要应存储在***数据区32,而生成设备9则使用信息证实代码算法(MAC算法)和保密MAC密匙根据标识数据和***数据来生成密码提要。这种MAC-密码可以简单地写成为
ED=E(***数据,固定数据,MAC-密匙)其中ED表示额外数据(=密码提要),E表示MAC-密码。
在如图6所示的记录或重放装置中,设置相应的生成设备9来计算信息证实代码,后者是使用同样的保密MAC-密匙根据标识数据和***数据进行计算的。出于验证原因,算出的MAC要在验证设备6中与存储在***数据区32中的密码提要(MAC)进行比较。
与示于图3和4中的第二实施方案相比,使用MAC要比使用公开密匙签名的安全性差。用于计算MAC的密匙留存在***中的每个重放装置,如果有人闯开任何一个单个播放器并掌握了这把密匙,此人便可以继续前进并用其他的能证明MAC的***数据来代替该***数据。相反,在第二实施方案的公开密匙***中,加密方法中使用保密专有密匙,而公开的公开密匙则用检验证。
使用本发明可以防止***数据受到操纵。在固定数据区存储特殊数据就能防止恶意记录器把旧的有效***数据复制到新介质上,例如用旧的短的清单来代替顽皮记录器的新的大清单。由于***数据本身存储在可记录数据区,固定数据区容量有限的问题就克服了。
一般,***数据存储或隐蔽在用户进不去的区域或介质区,在此区中***数据不会影响盘的一般用途,即不会影响用户数据存储。对DVD和CD来说,一个实例就是所谓的盘‘引入(lead in)’和‘引出(lead out)’区。下文中这样的区域将统称为‘角落区’。其优点是它不麻烦用户,而且通常还使生产过程便宜得多,因为角落区能极快地压印,而可记录数据则不得不以常规速度记录。一般来说,播放器比记录器便宜得多也简单得多,所以播放介质角落区中的***数据,对播放器来说比之于记录器是个相当大的负担。因此,首次使用介质时,拥有记录器读出***数据并将其信息复制到记录数据区中的主用户数据区是有意义的。这样读出器就能找到主用户数据区中的***数据信息,而重放器无论以何种方式都能重放此信息。问题是播放器不能信任可记录器,因为后者可能没有如实地复制***数据。然而,如果按照本发明第一实施方案那样,把***数据的散列存储在固定数据区,那么读出器就能确定主用户数据区中体现的***数据与固定数据区中的散列相符合。显然记录器不可能操纵固定数据区。
应当指出,本发明的任何细节每次都是重放装置说明的,但重放装置也可以用可记录装置取代。两种装置可能包括适当的读出和/或记录设备把数据从介质中读出或记录进介质。另外,应当了解,权利要求中提出的存储介质,记录装置以及重放装置可以按照上述和附属权利要求中提出的同样或相应方法并参照数据存储方法进行了进一步的开发。
Claims (12)
1.在可重写数据存储介质(1)上存储数据的方法,该存储介质(1)包括只读固定数据区(2)和可记录数据区(3,4),在所述方法中:***数据存储在可记录数据区(3),其特征在于,
-***数据的密码提要在固定数据区(2)生成并存储,及
-密码提要被用于在用户数据读出和/或记录前***数据的验证。
2.在可重写数据存储介质(1)上存储数据的方法,该存储介质(1)包括固定数据区(2),其特征在于:
-固定数据区以角落区的形式包含一个第一固定数据区和一个第二固定数据区,
-***数据被存储在角落区中,
-生成该***数据的密码提要并将该密码提要存储在所述第一固定数据区,和
-该密码提要被用于在用户数据读出和/或记录之前***数据的验证。
3.权利要求1提出的方法,其特征在于:散列函数(5)被用于生成密码提要和验证***数据。
4.权利要求1提出的方法,其特征在于:使用信息证实代码算法来生成密码提要和验证***数据。
5.权利要求1提出的方法,其特征在于:使用密匙签名算法来生成密码提要和验证***数据,并且签名是作为密码提要存储的。
6.权利要求1提出的方法,其特征在于:在可记录数据区中密码提要的生成和***数据存储都是作为存储介质(1)格式的部分进行的。
7.权利要求1提出的方法,其特征在于:复制保护信息是作为***数据,特别是作为唯一的存储介质标识符,一把密匙来存储的,这把密匙是用一个或多个不同制造厂商特有的或装置特有的密匙,或者用一个或多个清除的装置或清除的存储介质的清单加密的。
8.权利要求1提出的方法,其特征在于:***数据原来存储在可记录数据区(3)的角落区而在首次使用记录装置中的存储介质的过程中,***数据被复制到可记录数据区(3,4)的用户数据区(4)。
9.将数据存储在可重写数据存储介质(1)上的记录装置,它包括:记录设备,它把***数据存储在介质的可记录数据区(3),其特征在于,该记录装置还包括生成设备(5),该生成设备(5)生成***数据的密码提要并且所述记录设备把所述密码提要存储在介质(1)的只读固定数据区(2),设置密码提要以在用户数据读出和/或记录前对***数据进行验证。
10.将数据存储在包含固定数据区(2)的可重写数据存储介质上的记录装置,其特征在于:
-固定数据区,该固定数据区以角落区的形式包含一个第一固定数据区和一个第二固定数据区,
-记录设备,它把***数据存储在角落区中,把***数据的密码提要存储在第一固定数据区,设置密码提要以在用户数据读出和/或记录之前对***数据进行验证,及
-生成设备(5),它生成***数据的密码提要。
11.重放存储在可重写数据存储介质(1)上的用户数据的重放装置,它包括:读出设备,它读出存储在介质(1)可记录数据区(3,4)中的***数据,其特征在于,
所述读出设备还读出存储在介质(1)只读固定数据区(2)中的***数据的密码提要,及
-验证设备(5,6),它生成从介质(1)读出的***数据的密码提要并利用所生成的密码提要对***数据进行验证。
12.重放存储在可重写数据存储介质(1)上的用户数据的重放装置,该数据存储介质(1)包括一个固定数据区(2),其特征在于,所述固定数据区以角落区的形式包含一个第一固定数据区和一个第二固定数据区,所述重放装置包括:
-读出设备,它读出存储在角落区中的***数据,和读出存储在第一固定数据区(2)中的***数据的密码提要,及
-验证设备(5,6),它生成从所述介质(1)读出的***数据的密码提要并利用所生成的密码提要对***数据进行验证。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00201951 | 2000-06-02 | ||
EP00201951.1 | 2000-06-02 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005100526592A Division CN1658314B (zh) | 2000-06-02 | 2001-05-08 | 存储数据的方法和记录/重放设备 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1381050A CN1381050A (zh) | 2002-11-20 |
CN1240066C true CN1240066C (zh) | 2006-02-01 |
Family
ID=8171591
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB018015727A Expired - Fee Related CN1240066C (zh) | 2000-06-02 | 2001-05-08 | 有数据保护区的可记录存储介质 |
CN2005100526592A Expired - Fee Related CN1658314B (zh) | 2000-06-02 | 2001-05-08 | 存储数据的方法和记录/重放设备 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005100526592A Expired - Fee Related CN1658314B (zh) | 2000-06-02 | 2001-05-08 | 存储数据的方法和记录/重放设备 |
Country Status (27)
Country | Link |
---|---|
US (2) | US6738904B2 (zh) |
EP (2) | EP1492107B1 (zh) |
JP (2) | JP5148039B2 (zh) |
KR (1) | KR100800372B1 (zh) |
CN (2) | CN1240066C (zh) |
AR (1) | AR029674A1 (zh) |
AT (1) | ATE290250T1 (zh) |
AU (1) | AU782541B2 (zh) |
BR (1) | BR0106684A (zh) |
CA (1) | CA2381141C (zh) |
CZ (1) | CZ2002408A3 (zh) |
DE (1) | DE60109160T2 (zh) |
DK (1) | DK1292946T3 (zh) |
EA (1) | EA004199B1 (zh) |
EG (1) | EG22529A (zh) |
ES (1) | ES2238445T3 (zh) |
IL (1) | IL147922A (zh) |
MX (1) | MXPA02001167A (zh) |
MY (1) | MY126685A (zh) |
NO (1) | NO327777B1 (zh) |
PL (1) | PL352072A1 (zh) |
PT (1) | PT1292946E (zh) |
TR (1) | TR200200271T1 (zh) |
TW (1) | TWI239447B (zh) |
UA (1) | UA76094C2 (zh) |
WO (1) | WO2001095327A2 (zh) |
ZA (1) | ZA200200897B (zh) |
Families Citing this family (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6788800B1 (en) | 2000-07-25 | 2004-09-07 | Digimarc Corporation | Authenticating objects using embedded data |
US6912634B2 (en) * | 2000-12-28 | 2005-06-28 | Intel Corporation | Verifying the integrity of a media key block by storing validation data in a validation area of media |
US7111175B2 (en) | 2000-12-28 | 2006-09-19 | Intel Corporation | Method and apparatus for verifying the integrity of a media key block |
US6957343B2 (en) * | 2001-03-30 | 2005-10-18 | Intel Corporation | Validating keying material by using a validation area of read-only media to prevent playback of unauthorized copies of content stored on the media |
US20020146147A1 (en) * | 2001-04-06 | 2002-10-10 | Levy Kenneth L. | Digitally watermarking physical media |
US7248715B2 (en) * | 2001-04-06 | 2007-07-24 | Digimarc Corporation | Digitally watermarking physical media |
US20030053656A1 (en) * | 2001-04-06 | 2003-03-20 | Levy Kenneth L. | Digitally watermarking physical media |
JP3946965B2 (ja) * | 2001-04-09 | 2007-07-18 | ソニー株式会社 | 無体財産権を保護する情報を記録する記録装置、記録方法、記録媒体、およびプログラム |
JP4944355B2 (ja) * | 2001-05-22 | 2012-05-30 | ユーキューイー,エルエルシー | デジタル作品を記録する記録担体、方法及び装置 |
JP3832289B2 (ja) * | 2001-08-20 | 2006-10-11 | ソニー株式会社 | 情報記録装置、ビデオ信号出力装置、ストリーム出力方法、プログラム、記録媒体、およびデータ構造 |
GB0129065D0 (en) * | 2001-12-05 | 2002-01-23 | Philips Electronics Uk Ltd | Method and apparatus for verifying the integrity of system data |
TWI258646B (en) * | 2001-12-27 | 2006-07-21 | Asulab Sa | Device and method for managing memory in an electronic watch |
JP3673234B2 (ja) * | 2002-03-20 | 2005-07-20 | 株式会社東芝 | 暗号処理を行う情報記録再生装置と情報記録再生方法 |
CN100385518C (zh) | 2002-05-01 | 2008-04-30 | Lg电子株式会社 | 高密度只读光盘及使用光盘的光盘设备和方法 |
EP1518237A2 (en) | 2002-06-20 | 2005-03-30 | Koninklijke Philips Electronics N.V. | Method and device for protecting user information against manipulations |
EP1518227B1 (en) * | 2002-07-02 | 2013-09-04 | LG Electronics, Inc. | High-density optical disc and method for restricting playback of the high-density optical disc in optical disc apparatus |
KR20040024946A (ko) * | 2002-09-18 | 2004-03-24 | 에스비에스골프닷컴 주식회사 | 공개키 기반 구조에서 비밀키 관리 방법 |
US7568113B2 (en) | 2003-01-24 | 2009-07-28 | Johan Paul Marie Gerard Linnartz | Reliable storage medium access control method and device |
KR101051000B1 (ko) | 2003-02-19 | 2011-07-26 | 엘지전자 주식회사 | 고밀도 광디스크와, 그에 따른 불법 복제 판별방법 |
KR100524952B1 (ko) * | 2003-03-07 | 2005-11-01 | 삼성전자주식회사 | 기록 매체의 데이터 보호 방법 및 이를 이용한 디스크드라이브 |
US8132024B2 (en) * | 2003-03-11 | 2012-03-06 | Panasonic Corporation | Digital work protection system, recording apparatus, reproduction apparatus, and recording medium |
JP4043388B2 (ja) * | 2003-03-20 | 2008-02-06 | ソニー株式会社 | 再生装置および再生方法 |
JP2004295373A (ja) * | 2003-03-26 | 2004-10-21 | Sony Corp | 情報記録媒体、情報処理装置、情報記録媒体製造装置、および方法、並びにコンピュータ・プログラム |
KR100972831B1 (ko) * | 2003-04-24 | 2010-07-28 | 엘지전자 주식회사 | 엔크립트된 데이터의 보호방법 및 그 재생장치 |
KR20040092649A (ko) * | 2003-04-24 | 2004-11-04 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
KR100974448B1 (ko) * | 2003-04-24 | 2010-08-10 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
KR100974449B1 (ko) * | 2003-04-24 | 2010-08-10 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
WO2004100154A1 (ja) * | 2003-04-30 | 2004-11-18 | Sony Corporation | データ処理方法、そのプログラム、その装置および記録媒体 |
DE10358144A1 (de) * | 2003-12-10 | 2005-08-04 | Francotyp-Postalia Ag & Co. Kg | Verfahren und Anordnung zum Authentifizieren von Daten |
US7802085B2 (en) * | 2004-02-18 | 2010-09-21 | Intel Corporation | Apparatus and method for distributing private keys to an entity with minimal secret, unique information |
CA2559782A1 (en) * | 2004-03-17 | 2005-09-29 | Koninklijke Philips Electronics N.V. | Method of and device for generating authorization status list |
US7697691B2 (en) * | 2004-07-14 | 2010-04-13 | Intel Corporation | Method of delivering Direct Proof private keys to devices using an on-line service |
US7746746B2 (en) * | 2004-11-16 | 2010-06-29 | Hewlett-Packard Development Company, L.P. | Optical media with control data in wobble |
US8924728B2 (en) | 2004-11-30 | 2014-12-30 | Intel Corporation | Apparatus and method for establishing a secure session with a device without exposing privacy-sensitive information |
EP1825468A4 (en) * | 2004-12-13 | 2011-11-30 | Lg Electronics Inc | METHOD OF SECURING CONTENT ON A RECORDING MEDIUM AND CONTAINING SAID CONTENT BY SAVING THE RECORDING MEDIUM |
KR20060066628A (ko) * | 2004-12-13 | 2006-06-16 | 엘지전자 주식회사 | 기록매체에 수록된 콘텐트를 보호하는 방법 및 그보호방법이 적용된 콘텐트를 수록하고 있는 기록매체 |
JP2008524692A (ja) * | 2004-12-20 | 2008-07-10 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 保護されたポータブル記憶媒体の解除方法 |
WO2006082961A1 (ja) * | 2005-02-07 | 2006-08-10 | Matsushita Electric Industrial Co., Ltd. | 記録装置、再生装置、集積回路及び制御プログラム |
CN101243513A (zh) † | 2005-08-23 | 2008-08-13 | 皇家飞利浦电子股份有限公司 | 使用物理单向函数的信息载体鉴别 |
CN100426181C (zh) * | 2005-10-20 | 2008-10-15 | 万国电脑股份有限公司 | 具主体识别信息的便携储存装置及主体识别信息设定方法 |
US8689337B2 (en) * | 2006-02-27 | 2014-04-01 | Vobile, Inc. | Systems and methods of fingerprinting and identifying video objects |
US8014530B2 (en) | 2006-03-22 | 2011-09-06 | Intel Corporation | Method and apparatus for authenticated, recoverable key distribution with no database secrets |
WO2007128419A1 (en) * | 2006-05-10 | 2007-11-15 | Nero Ag | Apparatus for writing information on a data content on a storage medium |
US8301906B2 (en) * | 2006-05-10 | 2012-10-30 | Nero Ag | Apparatus for writing information on a data content on a storage medium |
EP1855285A2 (en) * | 2006-05-10 | 2007-11-14 | Nero AG | Apparatus for writing data having a data amount on a storage medium |
US8108692B1 (en) | 2006-06-27 | 2012-01-31 | Siliconsystems, Inc. | Solid-state storage subsystem security solution |
CN101617324B (zh) * | 2007-02-23 | 2012-02-22 | 松下电器产业株式会社 | 著作权保护数据处理***及再现装置 |
WO2008102565A1 (ja) * | 2007-02-23 | 2008-08-28 | Panasonic Corporation | 著作権保護データ処理システム、及び再生装置 |
US20080253256A1 (en) * | 2007-04-13 | 2008-10-16 | Andreas Eckleder | Apparatus for writing data and redundancy data on a storage medium |
CN101377760B (zh) * | 2007-08-30 | 2010-06-02 | 佛山普立华科技有限公司 | 影像文件保护***及其方法 |
US8356184B1 (en) | 2009-06-25 | 2013-01-15 | Western Digital Technologies, Inc. | Data storage device comprising a secure processor for maintaining plaintext access to an LBA table |
AU2016204206A1 (en) * | 2010-07-29 | 2016-07-07 | Ainsworth Game Technology Limited | Systems and methods for data protection |
TWI525469B (zh) | 2010-07-29 | 2016-03-11 | 安斯沃斯遊戲科技有限公司 | 資料保護系統與方法 |
US9305142B1 (en) | 2011-12-19 | 2016-04-05 | Western Digital Technologies, Inc. | Buffer memory protection unit |
CN110457236B (zh) * | 2014-03-28 | 2020-06-30 | 三星电子株式会社 | 存储***以及对存储***执行和验证写保护的方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5418852A (en) * | 1992-03-18 | 1995-05-23 | Fujitsu Limited | Unauthorized use prevention method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus |
JP3084969B2 (ja) * | 1992-10-16 | 2000-09-04 | 松下電器産業株式会社 | 再生装置と記録装置とケース入り記録媒体と記録媒体の初期化装置 |
DE69431777T2 (de) * | 1993-07-16 | 2003-04-10 | Fujitsu Ltd | Aufzeichnungsmedium, Verfahren zu seiner Steuerung, und System, das elektronische Veröffentlichungen verwendet |
EP1764782B1 (en) * | 1994-11-17 | 2010-02-17 | Panasonic Corporation | Optical disk, method of manufacturing an optical disk and a reproduction apparatus |
JP3252706B2 (ja) * | 1995-07-21 | 2002-02-04 | ソニー株式会社 | 映像信号再生方法及び装置、並びに信号伝送方法及び装置 |
JP3707833B2 (ja) * | 1995-08-10 | 2005-10-19 | 株式会社東芝 | 光ディスク装置 |
US6028936A (en) * | 1996-01-16 | 2000-02-22 | Disney Enterprises, Inc. | Method and apparatus for authenticating recorded media |
US6144745A (en) * | 1997-04-07 | 2000-11-07 | Fujitsu Limited | Method of and apparatus for retaining and verifying of data on recording medium |
US6061449A (en) | 1997-10-10 | 2000-05-09 | General Instrument Corporation | Secure processor with external memory using block chaining and block re-ordering |
KR100403270B1 (ko) * | 1997-12-29 | 2004-03-20 | 삼성전자주식회사 | 디지털기록매체의저작권을보호하는방법및장치,그리고,그디지털기록매체 |
US6438235B2 (en) * | 1998-08-05 | 2002-08-20 | Hewlett-Packard Company | Media content protection utilizing public key cryptography |
EP0984346A1 (en) * | 1998-09-02 | 2000-03-08 | Hitachi Europe Limited | Copy protection apparatus and method |
CN1477630A (zh) * | 1998-09-21 | 2004-02-25 | 日本胜利株式会社 | 信息记录方法与装置、重放装置、及信息保护方法 |
DE69925087T2 (de) * | 1998-09-22 | 2006-02-02 | Matsushita Electric Industrial Co., Ltd., Kadoma | Optische Platte, Verfahren zur Wiedergabe zusätzlicher Daten aus einer optischen Platte, Wiedergabegerät für optische Platte sowie Aufzeichnungs- und Wiedergabegerät für optische Platte |
US6425098B1 (en) * | 1998-10-20 | 2002-07-23 | Midbar Tech (1998) Ltd. | Prevention of disk piracy |
JP2000286839A (ja) * | 1999-03-31 | 2000-10-13 | Ricoh Co Ltd | 情報記録装置、真正性検証方法およびその方法をコンピュータに実行させるプログラムを記録したコンピュータ読み取り可能な記録媒体 |
JP4177517B2 (ja) * | 1999-05-21 | 2008-11-05 | 株式会社東芝 | コンテンツ処理システムおよびコンテンツ保護方法 |
US6519213B1 (en) * | 1999-06-29 | 2003-02-11 | Oak Technology, Inc. | Method and apparatus for reading data from a disk |
JP4062842B2 (ja) * | 1999-12-14 | 2008-03-19 | ソニー株式会社 | 記録装置及び方法、再生装置及び方法並びに記録媒体 |
JP4211174B2 (ja) * | 2000-01-12 | 2009-01-21 | ソニー株式会社 | データ記録再生システム |
WO2001075871A1 (fr) * | 2000-04-03 | 2001-10-11 | Kabushiki Kaisha Toshiba | Support d'enregistrement d'informations adaptable a la protection anti-copie et appareil d'enregistrement/reproduction |
-
2001
- 2001-03-21 TW TW090106596A patent/TWI239447B/zh active
- 2001-04-06 US US09/828,005 patent/US6738904B2/en not_active Expired - Lifetime
- 2001-05-08 PT PT01938199T patent/PT1292946E/pt unknown
- 2001-05-08 KR KR1020027001410A patent/KR100800372B1/ko not_active IP Right Cessation
- 2001-05-08 JP JP2002502778A patent/JP5148039B2/ja not_active Expired - Fee Related
- 2001-05-08 CZ CZ2002408A patent/CZ2002408A3/cs unknown
- 2001-05-08 EP EP04103756.5A patent/EP1492107B1/en not_active Expired - Lifetime
- 2001-05-08 CN CNB018015727A patent/CN1240066C/zh not_active Expired - Fee Related
- 2001-05-08 CA CA2381141A patent/CA2381141C/en not_active Expired - Fee Related
- 2001-05-08 EP EP01938199A patent/EP1292946B1/en not_active Expired - Lifetime
- 2001-05-08 MX MXPA02001167A patent/MXPA02001167A/es active IP Right Grant
- 2001-05-08 PL PL01352072A patent/PL352072A1/xx unknown
- 2001-05-08 AT AT01938199T patent/ATE290250T1/de active
- 2001-05-08 IL IL14792201A patent/IL147922A/en not_active IP Right Cessation
- 2001-05-08 DE DE60109160T patent/DE60109160T2/de not_active Expired - Lifetime
- 2001-05-08 ES ES01938199T patent/ES2238445T3/es not_active Expired - Lifetime
- 2001-05-08 BR BR0106684-6A patent/BR0106684A/pt not_active Application Discontinuation
- 2001-05-08 TR TR2002/00271T patent/TR200200271T1/xx unknown
- 2001-05-08 CN CN2005100526592A patent/CN1658314B/zh not_active Expired - Fee Related
- 2001-05-08 AU AU63917/01A patent/AU782541B2/en not_active Ceased
- 2001-05-08 WO PCT/EP2001/005195 patent/WO2001095327A2/en active IP Right Grant
- 2001-05-08 DK DK01938199T patent/DK1292946T3/da active
- 2001-05-08 EA EA200200222A patent/EA004199B1/ru not_active IP Right Cessation
- 2001-05-30 EG EG20010579A patent/EG22529A/xx active
- 2001-05-31 MY MYPI20012577 patent/MY126685A/en unknown
- 2001-06-01 AR ARP010102638A patent/AR029674A1/es active IP Right Grant
- 2001-08-05 UA UA2002031754A patent/UA76094C2/uk unknown
-
2002
- 2002-01-31 ZA ZA200200897A patent/ZA200200897B/xx unknown
- 2002-02-01 NO NO20020528A patent/NO327777B1/no not_active IP Right Cessation
-
2004
- 2004-02-24 US US10/785,495 patent/US7260219B2/en not_active Expired - Fee Related
-
2012
- 2012-10-04 JP JP2012222496A patent/JP5612054B2/ja not_active Expired - Fee Related
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1240066C (zh) | 有数据保护区的可记录存储介质 | |
KR100580572B1 (ko) | 매체에 저장된 컨텐츠의 비인증 사본의 재생을 방지하기위해 판독-전용 매체의 검증 영역을 이용한 키 재료의검증 방법 및 장치 | |
KR101305639B1 (ko) | 복제 방지를 위한 비휘발성 저장 장치 및 그 저장 장치의 인증 방법 | |
US20060136342A1 (en) | Content protection method, and information recording and reproduction apparatus using same | |
US20040034787A1 (en) | Video and/or audio information reading apparatus, information recording apparatus, optical disk reproducing apparatus, optical disk recording apparatus, information reading method, information recording method, program, and storage medium | |
US20090276635A1 (en) | Controlling distribution and use of digital works | |
US20060123483A1 (en) | Method and system for protecting against illegal copy and/or use of digital contents stored on optical or other media | |
EA003963B1 (ru) | Контролируемое распространение цифровой информации, в особенности аудиоданных | |
US7624285B2 (en) | Method and device for protecting user information against manipulations | |
KR20050016577A (ko) | 사용자 정보의 부정조작을 방지하는 방법 및 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060201 Termination date: 20180508 |
|
CF01 | Termination of patent right due to non-payment of annual fee |