Program execution device
    11.
    发明授权
    Program execution device 有权
    程序执行装置

    公开(公告)号:US08181040B2

    公开(公告)日:2012-05-15

    申请号:US12367076

    申请日:2009-02-06

    IPC分类号: H04L9/00 H04K1/00 G06F21/00

    摘要: A program execution device capable of protecting a program against unauthorized analysis and alteration is provided. The program execution device includes an execution unit, a first protection unit, and a second protection unit. The execution unit executes a first program and a second program, and is connected with an external device that is capable of controlling the execution. The first protection unit disconnects the execution unit from the external device while the execution unit is executing the first program. The second protection unit protects the first program while the execution unit is executing the second program.

    摘要翻译: 提供了能够保护程序免受未经授权的分析和改变的程序执行装置。 程序执行装置包括执行单元,第一保护单元和第二保护单元。 执行单元执行第一程序和第二程序,并且与能够控制执行的外部设备连接。 第一个保护单元在执行单元执行第一个程序时将执行单元与外部设备断开连接。 第二保护单元在执行单元执行第二程序时保护第一程序。

    PROGRAM EXECUTION DEVICE
    12.
    发明申请
    PROGRAM EXECUTION DEVICE 有权
    程序执行装置

    公开(公告)号:US20090150685A1

    公开(公告)日:2009-06-11

    申请号:US12367076

    申请日:2009-02-06

    IPC分类号: G06F12/14

    摘要: A program execution device capable of protecting a program against unauthorized analysis and alteration is provided. The program execution device includes an execution unit, a first protection unit, and a second protection unit. The execution unit executes a first program and a second program, and is connected with an external device that is capable of controlling the execution. The first protection unit disconnects the execution unit from the external device while the execution unit is executing the first program. The second protection unit protects the first program while the execution unit is executing the second program.

    摘要翻译: 提供了能够保护程序免受未经授权的分析和改变的程序执行装置。 程序执行装置包括执行单元,第一保护单元和第二保护单元。 执行单元执行第一程序和第二程序,并且与能够控制执行的外部设备连接。 第一个保护单元在执行单元执行第一个程序时将执行单元与外部设备断开连接。 第二保护单元在执行单元执行第二程序时保护第一程序。

    Digital content protection system
    15.
    发明授权
    Digital content protection system 有权
    数字内容保护系统

    公开(公告)号:US07298845B2

    公开(公告)日:2007-11-20

    申请号:US11015252

    申请日:2004-12-17

    IPC分类号: H04N7/167 H04L9/00 H04L9/32

    摘要: The media inherent key storing unit 220 prestores an inherent key Ki, the conversion unit 230 generates an encrypted inherent key Ji from the inherent key read from the media inherent key storing unit 220, the random number generating unit 331 generates a random number R1, the encryption unit 252 generates an encrypted random number S1, the decryption unit 333 generates a random number R′1 from the encrypted random number R1, and the mutual authentication control unit 334 compares the random number R′1 with the random number R1 and, if the random number R′1 matches the random number R1, judges that the memory card 200 is an authorized device. If the memory card 200 and the memory card writer have successfully authenticated each other, the memory card writer encrypts a content using a decrypted inherent key. If the memory card 200 and the memory card reader have successfully authenticated each other, the memory card reader decrypts an encrypted content using the decrypted inherent key.

    摘要翻译: 媒体固有密钥存储单元220预先存储固有密钥Ki,转换单元230从从媒体固有密钥存储单元220读取的固有密钥生成加密固有密钥Ji,随机数生成单元331生成随机数R 1, 加密单元252生成加密随机数S 1,解密单元333从加密随机数R 1生成随机数R'1,并且相互认证控制单元334将随机数R'1与随机数R 1,并且如果随机数R'1与随机数R 1匹配,则判断存储卡200是授权装置。 如果存储卡200和存储卡写卡器已成功认证,则存储卡写入器使用解密的固有密钥加密内容。 如果存储卡200和存储卡阅读器已经成功地认证了彼此,则存储卡读卡器使用解密的固有密钥来解密加密的内容。

    Data copying system, data copying apparatus, data copying method, and recording medium
    16.
    发明授权
    Data copying system, data copying apparatus, data copying method, and recording medium 有权
    数据复制系统,数据复制装置,数据复制方法和记录介质

    公开(公告)号:US06865552B1

    公开(公告)日:2005-03-08

    申请号:US09452622

    申请日:1999-12-01

    摘要: A data copying system of the present invention includes a data copying apparatus for copying data recorded on a first recording medium to a second recording medium. The data copying apparatus includes: a data read section for reading out the data from the first recording medium; a data modification control section for controlling modification of the data in accordance with modification control information, the modification control information being provided for controlling the modification of the data; and a data write section for writing an output of the data modification control section to the second recording medium. The modification control information includes a copying permission flag indicating whether the copying of the data permitted, a quality control flag for controlling a quality of modified data which is obtained by modifying the data, and a billing control flag for controlling billing for the copying of the data. The data modification control section determines whether billing is required for the copying of the data in accordance with the billing control flag. When the billing is required, the data modification control section controls the modification of the data in accordance with the copying permission flag and the quality control flag, after confirming that the billing has been done by the billing apparatus. When the billing is not required, the data modification control section controls the modification of the data in accordance with the copying permission flag and the quality control flag, without confirming that the billing has been done by the billing apparatus.

    摘要翻译: 本发明的数据复制系统包括用于将记录在第一记录介质上的数据复制到第二记录介质的数据复制装置。 数据复制装置包括:数据读取部分,用于从第一记录介质读出数据; 数据修改控制部分,用于根据修改控制信息控制数据的修改,所述修改控制信息被提供用于控制数据的修改; 以及数据写入部分,用于将数据修改控制部分的输出写入第二记录介质。 修改控制信息包括指示复制允许的数据的复制许可标志,用于控制通过修改数据而获得的修改数据的质量的质量控制标志和用于控制复制的计费的计费控制标志 数据。 数据修改控制部分确定是否需要根据计费控制标志复制数据的计费。 当需要计费时,数据修改控制部分在确认已经由计费装置完成计费之后,根据复制许可标志和质量控制标志来控制数据的修改。 当不需要计费时,数据修改控制部分根据复制许可标志和质量控制标志来控制数据的修改,而不确认计费是由计费装置完成的。

    Production protection system dealing with contents that are digital production
    17.
    发明授权
    Production protection system dealing with contents that are digital production 有权
    处理数字化生产的内容的生产保护体系

    公开(公告)号:US06862582B2

    公开(公告)日:2005-03-01

    申请号:US10729186

    申请日:2003-12-05

    摘要: A data protection system obtains data having a first content on which a first encryption has been performed and a second content on which a second encryption has been performed, the second encryption more difficult to break than the first encryption. A first content decryption unit decrypts the first content, using a first encryption method corresponding to the first encryption of the first content. A second content decryption unit decrypts the second content using a second decryption method that corresponds to the second encryption. The decrypting contents can be executed by a software, and the second content decryption unit can include one of tamperproof hardware and an apparatus that executes tamperproof software.

    摘要翻译: 数据保护系统获得具有已经执行了第一加密的第一内容和已经执行了第二加密的第二内容的数据,第二加密比第一加密更难打破。 第一内容解密单元使用与第一内容的第一加密相对应的第一加密方法来解密第一内容。 第二内容解密单元使用对应于第二加密的第二解密方法来解密第二内容。 解密内容可以由软件执行,第二内容解密单元可以包括防篡改硬件之一和执行防篡改软件的装置。

    Digital content protection system
    18.
    发明授权
    Digital content protection system 有权
    数字内容保护系统

    公开(公告)号:US06859535B1

    公开(公告)日:2005-02-22

    申请号:US09419240

    申请日:1999-10-15

    摘要: The media inherent key storing unit 220 prestores an inherent key Ki, the conversion unit 230 generates an encrypted inherent key Ji from the inherent key read from the media inherent key storing unit 220, the random number generating unit 331 generates a random number R1, the encryption unit 252 generates an encrypted random number S1, the decryption unit 333 generates a random number R′1 from the encrypted random number R1, and the mutual authentication control unit 334 compares the random number R′1 with the random number R1 and, if the random number R′1 matches the random number R1, judges that the memory card 200 is an authorized device. If the memory card 200 and the memory card writer have successfully authenticated each other, the memory card writer encrypts a content using a decrypted inherent key. If the memory card 200 and the memory card reader have successfully authenticated each other, the memory card reader decrypts an encrypted content using the decrypted inherent key.

    摘要翻译: 媒体固有密钥存储单元220预先存储固有密钥Ki,转换单元230从从媒体固有密钥存储单元220读取的固有密钥生成加密固有密钥Ji,随机数生成单元331生成随机数R1, 加密单元252生成加密的随机数S1,解密单元333从加密的随机数R1生成随机数R'1,并且相互认证控制单元334将随机数R'1与随机数R1进行比较,如果 随机数R'1与随机数R1匹配,判断存储卡200是授权装置。 如果存储卡200和存储卡写卡器已成功认证,则存储卡写入器使用解密的固有密钥加密内容。 如果存储卡200和存储卡阅读器已经成功地认证了彼此,则存储卡读卡器使用解密的固有密钥来解密加密的内容。

    Data copying system, data copying method, data reading apparatus, data writing apparatus and data recording medium
    19.
    发明授权
    Data copying system, data copying method, data reading apparatus, data writing apparatus and data recording medium 失效
    数据复制系统,数据复制方法,数据读取装置,数据写入装置和数据记录介质

    公开(公告)号:US06539468B1

    公开(公告)日:2003-03-25

    申请号:US09472479

    申请日:1999-12-27

    IPC分类号: G06F1214

    摘要: There is provided a copying system for copying information recorded on a first recording medium onto a second recording medium. The first recording medium is recorded with copying control information for representing conditions for permitting copying of the information recorded on the first recording medium, the copying control information being multiplexed within the information recorded on the first recording medium. The copying system includes: a reading section for reading the information from the first recording medium; a detection section for detecting the copying control information within the information read from the first recording medium; a modification section for, if the copying control information represents a condition that “only copying to a second generation copy is permitted”, modifying the copying control information so as to prohibit any further copying; and a writing section for writing information including the modified copying control information, onto the second recording medium.

    摘要翻译: 提供了一种用于将记录在第一记录介质上的信息复制到第二记录介质上的复印系统。 第一记录介质被记录有用于表示允许复制记录在第一记录介质上的信息的条件的复制控制信息,复制控制信息被复用在记录在第一记录介质上的信息中。 复制系统包括:用于从第一记录介质读取信息的读取部分; 检测部分,用于检测从第一记录介质读取的信息内的复制控制信息; 如果复制控制信息表示“仅允许复制到第二代复制件”的条件,则修改部分,修改复制控制信息以禁止进一步复制; 以及用于将包括修改的复制控制信息的信息写入第二记录介质的写入部分。

    Digital content protection system
    20.
    发明授权
    Digital content protection system 有权
    数字内容保护系统

    公开(公告)号:US07707430B2

    公开(公告)日:2010-04-27

    申请号:US11857389

    申请日:2007-09-18

    IPC分类号: H04L9/32 H04L9/00

    摘要: The media inherent key storing unit 220 prestores an inherent key Ki, the conversion unit 230 generates an encrypted inherent key Ji from the inherent key read from the media inherent key storing unit 220, the random number generating unit 331 generates a random number R1, the encryption unit 252 generates an encrypted random number S1, the decryption unit 333 generates a random number R′1 from the encrypted random number R1, and the mutual authentication control unit 334 compares the random number R′1 with the random number R1 and, if the random number R′1 matches the random number R1, judges that the memory card 200 is an authorized device. If the memory card 200 and the memory card writer have successfully authenticated each other, the memory card writer encrypts a content using a decrypted inherent key. If the memory card 200 and the memory card reader have successfully authenticated each other, the memory card reader decrypts an encrypted content using the decrypted inherent key.

    摘要翻译: 媒体固有密钥存储单元220预先存储固有密钥Ki,转换单元230从从媒体固有密钥存储单元220读取的固有密钥生成加密固有密钥Ji,随机数生成单元331生成随机数R1, 加密单元252生成加密的随机数S1,解密单元333从加密的随机数R1生成随机数R'1,并且相互认证控制单元334将随机数R'1与随机数R1进行比较,如果 随机数R'1与随机数R1匹配,判断存储卡200是授权装置。 如果存储卡200和存储卡写卡器已成功认证,则存储卡写入器使用解密的固有密钥加密内容。 如果存储卡200和存储卡阅读器已经成功地认证了彼此,则存储卡读卡器使用解密的固有密钥来解密加密的内容。