Method of creating domain based on public key cryptography
    21.
    发明申请
    Method of creating domain based on public key cryptography 有权
    基于公共密钥加密技术创建域的方法

    公开(公告)号:US20050075986A1

    公开(公告)日:2005-04-07

    申请号:US10867817

    申请日:2004-06-16

    摘要: A method of creating a domain based on public key cryptography includes providing, by a content-providing server, a list of devices requesting content, and selecting, by a user, a device from the list; transmitting, by the server, discrimination information on revoked devices to the device; extracting, by the device having received the discrimination information, a secret value from the discrimination information, preparing a certificate using the extracted secret value, and transmitting device information and the certificate of the device to the server; verifying, by the server, the certificate and creating a domain ID and a domain key using the device information; encrypting, by the server, the domain ID and the domain key using a unique public key of the device and transmitting the encrypted domain ID and domain key to the device; and restoring, by the device, the domain key using a unique secret key of the device.

    摘要翻译: 基于公钥密码术创建域的方法包括:由内容提供服务器提供请求内容的设备列表,并由用户从列表中选择设备; 由所述服务器向所述设备发送被撤销设备的识别信息; 通过已经从识别信息接收到鉴别信息的设备提取秘密值,使用提取的秘密值准备证书,并将设备信息和设备的证书发送到服务器; 由服务器验证证书,并使用设备信息创建域ID和域密钥; 由服务器使用设备的唯一公钥加密域ID和域密钥,并将加密的域ID和域密钥发送到设备; 以及使用设备的唯一秘密密钥来恢复该设备的域密钥。

    Method and apparatus for transmitting and receiving protected contents at home
    22.
    发明申请
    Method and apparatus for transmitting and receiving protected contents at home 审中-公开
    用于在家中发送和接收受保护内容的方法和装置

    公开(公告)号:US20060045478A1

    公开(公告)日:2006-03-02

    申请号:US11200306

    申请日:2005-08-10

    CPC分类号: H04N21/43632 H04N21/4367

    摘要: Provided are a system and a method for transmitting and receiving contents at home. The content service method includes: reconstructing encrypted compressed contents back into compressed contents by decrypting the encrypted compressed contents according to a first scheme; encrypting the reconstructed compressed contents according to a second scheme; and transmitting the encrypted compressed contents via a predetermined link. Therefore, the encrypting and decrypting of contents are easily supported without an encoding process in a content server terminal at home.

    摘要翻译: 提供了一种在家中发送和接收内容的系统和方法。 内容服务方法包括:通过根据第一方案解密加密的压缩内容来将加密的压缩内容重新构建成压缩内容; 根据第二方案加密重建的压缩内容; 以及经由预定链路发送加密的压缩内容。 因此,在家庭内容服务器终端中没有编码处理的情况下容易地支持内容的加密和解密。

    Method of creating domain based on public key cryptography
    23.
    发明授权
    Method of creating domain based on public key cryptography 有权
    基于公共密钥加密技术创建域的方法

    公开(公告)号:US07996322B2

    公开(公告)日:2011-08-09

    申请号:US10867817

    申请日:2004-06-16

    IPC分类号: G06F21/00

    摘要: A method of creating a domain based on public key cryptography includes providing, by a content-providing server, a list of devices requesting content, and selecting, by a user, a device from the list; transmitting, by the server, discrimination information on revoked devices to the device; extracting, by the device having received the discrimination information, a secret value from the discrimination information, preparing a certificate using the extracted secret value, and transmitting device information and the certificate of the device to the server; verifying, by the server, the certificate and creating a domain ID and a domain key using the device information; encrypting, by the server, the domain ID and the domain key using a unique public key of the device and transmitting the encrypted domain ID and domain key to the device; and restoring, by the device, the domain key using a unique secret key of the device.

    摘要翻译: 基于公钥密码术创建域的方法包括:由内容提供服务器提供请求内容的设备列表,并由用户从列表中选择设备; 由所述服务器向所述设备发送被撤销设备的识别信息; 通过已经从识别信息接收到鉴别信息的设备提取秘密值,使用提取的秘密值准备证书,并将设备信息和设备的证书发送到服务器; 由服务器验证证书,并使用设备信息创建域ID和域密钥; 由服务器使用设备的唯一公钥加密域ID和域密钥,并将加密的域ID和域密钥发送到设备; 以及使用设备的唯一秘密密钥来恢复该设备的域密钥。

    Method and apparatus for encrypting data
    25.
    发明授权
    Method and apparatus for encrypting data 有权
    用于加密数据的方法和装置

    公开(公告)号:US08204215B2

    公开(公告)日:2012-06-19

    申请号:US11946269

    申请日:2007-11-28

    IPC分类号: H04L9/00 H04L29/06

    CPC分类号: H04L9/0637 H04L2209/08

    摘要: A method of encrypting data is provided. The method includes dividing data in packet units into N data blocks; generating an initial counter value using a random number used for generating an encryption key for encrypting the data blocks; generating N counter values by increasing the initial value by a predetermined value N times and encrypting the N counter values using the encryption key; and performing an exclusive OR operation on the N encrypted counter values and the N data blocks.

    摘要翻译: 提供了一种加密数据的方法。 该方法包括将分组单元中的数据划分为N个数据块; 使用用于生成用于加密数据块的加密密钥的随机数生成初始计数器值; 通过将初始值增加预定值N次产生N个计数器值,并使用加密密钥对N个计数器值进行加密; 对N个加密计数器值和N个数据块执行异或运算。

    Apparatus and method for securely storing data
    26.
    发明申请
    Apparatus and method for securely storing data 审中-公开
    用于安全地存储数据的装置和方法

    公开(公告)号:US20060075262A1

    公开(公告)日:2006-04-06

    申请号:US11230868

    申请日:2005-09-21

    IPC分类号: G06F12/14

    CPC分类号: G06F21/10

    摘要: An apparatus and method for securely storing data. The apparatus for securely storing data in a predetermined device, includes: a key generator generating a protection key used to encrypt data based on a random number generated by inputting predetermined secret information in a predetermined random number generation function, and generation sequence information, which is information on a generation sequence of the random number, wherein the predetermined secret information is stored in a secure region, and the random number generation function can generate the protection key based on the generation sequence information and the secret information. As described above, the apparatus and method for storing data make it possible to securely store data even if the apparatus for storing data is replaced.

    摘要翻译: 一种用于安全地存储数据的装置和方法。 用于在预定设备中安全地存储数据的装置包括:密钥生成器,生成用于基于通过以预定随机数生成函数输入预定秘密信息而生成的随机数来加密数据的保护密钥,以及生成序列信息, 关于随机数的生成序列的信息,其中预定的秘密信息存储在安全区域中,并且随机数生成功能可以基于生成序列信息和秘密信息生成保护密钥。 如上所述,用于存储数据的装置和方法使得即使替换用于存储数据的装置也可以安全地存储数据。

    Method and apparatus for forbidding use of digital content against copy control information
    27.
    发明授权
    Method and apparatus for forbidding use of digital content against copy control information 有权
    禁止使用数字内容与复制控制信息的方法和装置

    公开(公告)号:US08234718B2

    公开(公告)日:2012-07-31

    申请号:US12130139

    申请日:2008-05-30

    IPC分类号: G06F21/00

    摘要: Provided is a method of preventing digital content from being used despite the presence of copy control information. In the method, a security apparatus capable of restricting use of contents generates a nonce with respect to a storage device and stores the nonce in the storage device and a memory separated from the storage device when content is stored in the storage device; updates the nonces stored in the memory and storage device when movement of the content occurs; and permits use of the content only when the nonce of the storage device, which is stored in the memory, is equal to the nonce stored in the storage device if the content is requested for use, thereby preventing a disk cloning attack.

    摘要翻译: 提供了尽管存在复制控制信息来防止数字内容被使用的方法。 在该方法中,能够限制使用内容的安全装置相对于存储装置产生随机数,并且当内容存储在存储装置中时,将该随机数存储在存储装置中以及与存储装置分离的存储器; 当内容的移动发生时,更新存储器和存储设备中存储的随机数; 并且只有当存储在存储器中的存储设备的随机数等于存储在存储设备中的内存时,才允许内容的使用,如果内容被请求使用,从而防止磁盘克隆攻击。

    Method for protecting important data of contents and apparatus therefor
    28.
    发明授权
    Method for protecting important data of contents and apparatus therefor 有权
    保护内容重要数据及其装置的方法

    公开(公告)号:US08171376B2

    公开(公告)日:2012-05-01

    申请号:US12029028

    申请日:2008-02-11

    IPC分类号: H03M13/00 G06F11/00

    摘要: A method of protecting important data in digital content and an apparatus therefor are provided. The method includes: receiving digital content which includes first important data; receiving reference data which includes second important data and authentication data for verifying whether the first important data is modified; and selectively correcting the first important data included in the digital content based on the reference data.

    摘要翻译: 提供一种保护数字内容中的重要数据的方法及其装置。 该方法包括:接收包含第一重要数据的数字内容; 接收包括第二重要数据和用于验证第一重要数据是否被修改的认证数据的参考数据; 并且基于参考数据选择性地校正包括在数字内容中的第一重要数据。

    Method and apparatus for transmitting data using authentication
    29.
    发明授权
    Method and apparatus for transmitting data using authentication 有权
    使用认证传输数据的方法和装置

    公开(公告)号:US08078874B2

    公开(公告)日:2011-12-13

    申请号:US11942884

    申请日:2007-11-20

    IPC分类号: H04L9/00

    摘要: A method and apparatus of transmitting data using authentication between a first device and a second device are provided. The method includes transmitting an encrypted certificate of the first device using a shared key shared by the first device and the second device, receiving authentication key generation information for generating an authentication key, which is received when it is determined that the certificate of the first device is valid and not revoked, generating a first random number and generating an authentication key based on the first random number and the authentication key generation information, and encrypting and transmitting data using the authentication key.

    摘要翻译: 提供了一种使用第一设备和第二设备之间的认证来发送数据的方法和装置。 该方法包括使用由第一设备和第二设备共享的共享密钥来发送第一设备的加密证书,接收用于生成认证密钥的认证密钥生成信息,当确定第一设备的证书时, 生成第一随机数,并且基于第一随机数和认证密钥生成信息生成认证密钥,并使用认证密钥对数据进行加密和发送。

    METHOD AND APPARATUS FOR FORBIDDING USE OF DIGITAL CONTENT AGAINST COPY CONTROL INFORMATION
    30.
    发明申请
    METHOD AND APPARATUS FOR FORBIDDING USE OF DIGITAL CONTENT AGAINST COPY CONTROL INFORMATION 有权
    禁止使用复制控制信息的数字内容的方法和装置

    公开(公告)号:US20090037748A1

    公开(公告)日:2009-02-05

    申请号:US12130139

    申请日:2008-05-30

    IPC分类号: H04L9/14 G06F21/00

    摘要: Provided is a method of preventing digital content from being used despite the presence of copy control information. In the method, a security apparatus capable of restricting use of contents generates a nonce with respect to a storage device and stores the nonce in the storage device and a memory separated from the storage device when content is stored in the storage device; updates the nonces stored in the memory and storage device when movement of the content occurs; and permits use of the content only when the nonce of the storage device, which is stored in the memory, is equal to the nonce stored in the storage device if the content is requested for use, thereby preventing a disk cloning attack.

    摘要翻译: 提供了尽管存在复制控制信息来防止数字内容被使用的方法。 在该方法中,能够限制使用内容的安全装置相对于存储装置产生随机数,并且当内容存储在存储装置中时,将该随机数存储在存储装置中以及与存储装置分离的存储器; 当内容的移动发生时,更新存储器和存储设备中存储的随机数; 并且只有当存储在存储器中的存储设备的随机数等于存储在存储设备中的内存时,才允许内容的使用,如果内容被请求使用,从而防止磁盘克隆攻击。