Method for generating data for detection of tampering, and method and apparatus for detection of tampering
    1.
    发明授权
    Method for generating data for detection of tampering, and method and apparatus for detection of tampering 有权
    用于产生用于检测篡改的数据的方法,以及用于检测篡改的方法和装置

    公开(公告)号:US08185746B2

    公开(公告)日:2012-05-22

    申请号:US12762845

    申请日:2010-04-19

    IPC分类号: H04L9/32

    摘要: In a target apparatus which stores at least one piece of domain key information in a first area and a plurality of pieces of content key information each associated with any one of the domain key information in a second area, a method for generating data for detecting tampering of the content key information. The method comprises the steps of encrypting the content key information associated with one of the domain key information using a chain encryption technique, extracting data at predetermined positions in the encrypted content key information, concatenating the pieces of data extracted at the predetermined positions in the encrypted content key information to obtain concatenated data, performing a hash calculation with respect to the concatenated data to obtain a hash value, storing check values corresponding to the data at the predetermined positions in plain text, in the target apparatus, and storing the hash value in the target apparatus.

    摘要翻译: 在将第一区域中存储至少一段领域密钥信息和与第二区域中的任何一个域密钥信息相关联的多条内容密钥信息的目标设备中,存储用于检测篡改的数据的方法 的内容密钥信息。 该方法包括以下步骤:使用链式加密技术加密与一个领域密钥信息相关联的内容密钥信息,在加密的内容密钥信息中的预定位置提取数据,连接在加密的内容密钥信息中的预定位置提取的数据段 内容密钥信息以获得连接的数据,对所述连接的数据执行哈希计算以获得哈希值,将与所述预定位置上的数据相对应的校验值存储在目标设备中,并将哈希值存储在 目标设备。

    Method for generating data for detection of tampering, and method and apparatus for detection of tampering
    2.
    发明授权
    Method for generating data for detection of tampering, and method and apparatus for detection of tampering 有权
    用于产生用于检测篡改的数据的方法,以及用于检测篡改的方法和装置

    公开(公告)号:US07730320B2

    公开(公告)日:2010-06-01

    申请号:US11223939

    申请日:2005-09-13

    IPC分类号: H04L9/00

    摘要: In a target apparatus which stores at least one piece of domain key information in a first area and a plurality of pieces of content key information each associated with any one of the domain key information in a second area, a method for generating data for detecting tampering of the content key information. The method comprises the steps of encrypting the content key information associated with one of the domain key information using a chain encryption technique, extracting data at predetermined positions in the encrypted content key information, concatenating the pieces of data extracted at the predetermined positions in the encrypted content key information to obtain concatenated data, performing a hash calculation with respect to the concatenated data to obtain a hash value, storing check values corresponding to the data at the predetermined positions in plain text, in the target apparatus, and storing the hash value in the target apparatus.

    摘要翻译: 在将第一区域中存储至少一段领域密钥信息和与第二区域中的任何一个域密钥信息相关联的多条内容密钥信息的目标设备中,存储用于检测篡改的数据的方法 的内容密钥信息。 该方法包括以下步骤:使用链式加密技术加密与一个领域密钥信息相关联的内容密钥信息,在加密的内容密钥信息中的预定位置提取数据,连接在加密的内容密钥信息中的预定位置提取的数据段 内容密钥信息以获得连接的数据,对所述连接的数据执行哈希计算以获得哈希值,将与所述预定位置上的数据相对应的校验值存储在目标设备中,并将哈希值存储在 目标设备。

    Method for generating data for detection of tampering, and method and apparatus for detection of tampering
    3.
    发明申请
    Method for generating data for detection of tampering, and method and apparatus for detection of tampering 有权
    用于产生用于检测篡改的数据的方法,以及用于检测篡改的方法和装置

    公开(公告)号:US20060136749A1

    公开(公告)日:2006-06-22

    申请号:US11223939

    申请日:2005-09-13

    摘要: In a target apparatus which stores at least one piece of domain key information in a first area and a plurality of pieces of content key information each associated with any one of the domain key information in a second area, a method for generating data for detecting tampering of the content key information. The method comprises the steps of encrypting the content key information associated with one of the domain key information using a chain encryption technique, extracting data at predetermined positions in the encrypted content key information, concatenating the pieces of data extracted at the predetermined positions in the encrypted content key information to obtain concatenated data, performing a hash calculation with respect to the concatenated data to obtain a hash value, storing check values corresponding to the data at the predetermined positions in plain text, in the target apparatus, and storing the hash value in the target apparatus.

    摘要翻译: 在将第一区域中存储至少一段领域密钥信息和与第二区域中的任何一个域密钥信息相关联的多条内容密钥信息的目标设备中,存储用于检测篡改的数据的方法 的内容密钥信息。 该方法包括以下步骤:使用链式加密技术加密与一个领域密钥信息相关联的内容密钥信息,在加密的内容密钥信息中的预定位置提取数据,连接在加密的内容密钥信息中的预定位置提取的数据段 内容密钥信息以获得连接的数据,对所述连接的数据执行哈希计算以获得哈希值,将与所述预定位置上的数据相对应的校验值存储在目标设备中,并将哈希值存储在 目标设备。