Generating and verifying trusted digital time stamp
    23.
    发明授权
    Generating and verifying trusted digital time stamp 失效
    生成和验证可信数字时间戳

    公开(公告)号:US07890765B2

    公开(公告)日:2011-02-15

    申请号:US12123892

    申请日:2008-05-20

    IPC分类号: H04L9/32

    摘要: Methods, apparatus and systems for generating a trusted digital time stamp as well as a public time source. It includes, an apparatus for receiving and recording public time information and a method for verifying a digital time stamp. A method for generating a trusted digital time stamp includes: obtaining a first time information and a corresponding random code from a public time source; and generating a digital time stamp using a first time information and random code. A method for verifying a digital time stamp includes: recording time information and corresponding random codes transmitted by a public time source; retrieving time information and a random code contained in the time stamp; and comparing a retrieved random code from the time stamp with one of the recorded random codes that corresponds to a time information in the time stamp, if they are consistent, the time stamp is determined to be trusted, otherwise the time stamp is determined to be not trusted.

    摘要翻译: 用于生成可信数字时间戳以及公共时间源的方法,装置和系统。 它包括用于接收和记录公共时间信息的装置和用于验证数字时间戳的方法。 一种用于生成可信数字时间戳的方法包括:从公共时间源获得第一时间信息和相应的随机码; 以及使用第一时间信息和随机码产生数字时间戳。 一种用于验证数字时间戳的方法包括:记录由公共时间源发送的时间信息和相应的随机码; 检索时间信息和时间戳中包含的随机代码; 并且将来自时间戳的检索到的随机码与对应于时间标记中的时间信息的记录随机码之一进行比较,如果它们一致,则确定时间戳是可信的,否则时间戳被确定为 不信任

    Processing multi-key content
    25.
    发明授权
    Processing multi-key content 失效
    处理多键内容

    公开(公告)号:US07516332B2

    公开(公告)日:2009-04-07

    申请号:US11082714

    申请日:2005-03-17

    IPC分类号: H04L9/00

    CPC分类号: G06F21/10

    摘要: This invention provides multi-key content processing systems and methods, for processing content with at least one distribution target position. Each of the distribution target positions corresponds to an authorization key. An example method includes the steps of: encrypting said content with a content key; forming a key link based on said content key and the authorization key of said at least one distribution target position; and attaching said key link to the encrypted content.

    摘要翻译: 本发明提供了用于处理具有至少一个分发目标位置的内容的多键内容处理系统和方法。 分配目标位置中的每一个对应于授权密钥。 一种示例性方法包括以下步骤:用内容密钥加密所述内容; 基于所述内容密钥和所述至少一个分发目标位置的授权密钥形成密钥链路; 以及将所述密钥链接附加到加密的内容。

    ENCRYPTING AND DECRYPTING A DATA STREAM
    26.
    发明申请
    ENCRYPTING AND DECRYPTING A DATA STREAM 有权
    加密和分解数据流

    公开(公告)号:US20090034721A1

    公开(公告)日:2009-02-05

    申请号:US12250144

    申请日:2008-10-13

    IPC分类号: H04L9/18

    摘要: The present invention provides methods, systems and apparatus for encrypting and for decrypting a data stream, for securely sending a data stream and for securely receiving a data stream, and for secure transmission of a data stream. The data stream, after at least a part of it being encrypted, is transmitted from a sender to a receiver via a channel. An exemplary method for encrypting comprises: adjusting encryption attributes during transmission; encrypting the data stream according to the adjusted encryption attributes; and transmitting the encrypted data stream and information of the encryption attributes to the receiver.

    摘要翻译: 本发明提供了用于加密和解密数据流的方法,系统和装置,用于安全地发送数据流和用于安全地接收数据流以及数据流的安全传输。 数据流在其至少一部分被加密之后,经由信道从发送者发送到接收者。 一种用于加密的示例性方法包括:在传输期间调整加密属性; 根据所调整的加密属性加密数据流; 并将加密的数据流和加密属性的信息发送到接收机。

    Generating and verifying trusted digital time stamp
    27.
    发明申请
    Generating and verifying trusted digital time stamp 失效
    生成和验证可信数字时间戳

    公开(公告)号:US20080288779A1

    公开(公告)日:2008-11-20

    申请号:US12123892

    申请日:2008-05-20

    IPC分类号: H04L9/00

    摘要: Methods, apparatus and systems for generating a trusted digital time stamp as well as a public time source. It includes, an apparatus for receiving and recording public time information and a method for verifying a digital time stamp. A method for generating a trusted digital time stamp includes: obtaining a first time information and a corresponding random code from a public time source; and generating a digital time stamp using a first time information and random code. A method for verifying a digital time stamp includes: recording time information and corresponding random codes transmitted by a public time source; retrieving time information and a random code contained in the time stamp; and comparing a retrieved random code from the time stamp with one of the recorded random codes that corresponds to a time information in the time stamp, if they are consistent, the time stamp is determined to be trusted, otherwise the time stamp is determined to be not trusted.

    摘要翻译: 用于生成可信数字时间戳以及公共时间源的方法,装置和系统。 它包括用于接收和记录公共时间信息的装置和用于验证数字时间戳的方法。 一种用于生成可信数字时间戳的方法包括:从公共时间源获得第一时间信息和相应的随机码; 以及使用第一时间信息和随机码产生数字时间戳。 一种用于验证数字时间戳的方法包括:记录由公共时间源发送的时间信息和相应的随机码; 检索时间信息和时间戳中包含的随机代码; 并且将来自时间戳的检索到的随机码与对应于时间标记中的时间信息的记录随机码之一进行比较,如果它们一致,则确定时间戳是可信的,否则时间戳被确定为 不信任

    Generating and verifying trusted digital time stamp
    28.
    发明申请
    Generating and verifying trusted digital time stamp 审中-公开
    生成和验证可信数字时间戳

    公开(公告)号:US20050223231A1

    公开(公告)日:2005-10-06

    申请号:US11034099

    申请日:2005-01-12

    摘要: Methods, apparatus and systems for generating a trusted digital time stamp as well as a public time source. It includes, an apparatus for receiving and recording public time information and a method for verifying a digital time stamp. A method for generating a trusted digital time stamp includes: obtaining a first time information and a corresponding random code from a public time source; and generating a digital time stamp using a first time information and random code. A method for verifying a digital time stamp includes: recording time information and corresponding random codes transmitted by a public time source; retrieving time information and a random code contained in the time stamp; and comparing a retrieved random code from the time stamp with one of the recorded random codes that corresponds to a time information in the time stamp, if they are consistent, the time stamp is determined to be trusted, otherwise the time stamp is determined to be not trusted.

    摘要翻译: 用于生成可信数字时间戳以及公共时间源的方法,装置和系统。 它包括用于接收和记录公共时间信息的装置和用于验证数字时间戳的方法。 一种用于生成可信数字时间戳的方法包括:从公共时间源获得第一时间信息和相应的随机码; 以及使用第一时间信息和随机码产生数字时间戳。 一种用于验证数字时间戳的方法包括:记录由公共时间源发送的时间信息和相应的随机码; 检索时间信息和时间戳中包含的随机代码; 并且将来自时间戳的检索到的随机码与对应于时间标记中的时间信息的记录随机码之一进行比较,如果它们一致,则确定时间戳是可信的,否则时间戳被确定为 不信任

    METHOD FOR REORDERING THE REQUEST QUEUE OF A HARDWARE ACCELERATOR
    29.
    发明申请
    METHOD FOR REORDERING THE REQUEST QUEUE OF A HARDWARE ACCELERATOR 审中-公开
    重新加速硬件加速器队列的方法

    公开(公告)号:US20120221747A1

    公开(公告)日:2012-08-30

    申请号:US13453138

    申请日:2012-04-23

    IPC分类号: G06F3/00

    CPC分类号: G06F9/3881

    摘要: Reordering the request queue of the hardware accelerator, wherein, the request queue stores therein a plurality of coprocessor request blocks (CRBs) to be input into the hardware accelerator. A content addressable memory is connected to the request queue for storing the state pointer of each CRB in the request queue at a same physical storage location in the request queue, receiving the state pointer of a new CRB in response to the new CRB asking to join in the request queue and outputting the physical storage location of a CRB in the request queue whose state pointer stored in the content addressable memory is the same as the state pointer of the new CRB.

    摘要翻译: 对硬件加速器的请求队列进行重新排序,其中,请求队列中存储要输入硬件加速器的多个协处理器请求块(CRB)。 内容可寻址存储器连接到请求队列,用于将请求队列中每个CRB的状态指针存储在请求队列中相同的物理存储位置处,响应于新CRB要求加入,接收新CRB的状态指针 在请求队列中输出存储在内容可寻址存储器中的状态指针与新CRB的状态指针相同的请求队列中的CRB的物理存储位置。

    Encrypting and decrypting a data stream
    30.
    发明授权
    Encrypting and decrypting a data stream 有权
    加密和解密数据流

    公开(公告)号:US07436955B2

    公开(公告)日:2008-10-14

    申请号:US10839915

    申请日:2004-05-06

    摘要: The present invention provides methods, systems and apparatus for encrypting and for decrypting a data stream, for securely sending a data stream and for securely receiving a data stream, and for secure transmission of a data stream. The data stream, after at least a part of it being encrypted, is transmitted from a sender to a receiver via a channel. An exemplary method for encrypting comprises: adjusting encryption attributes during transmission; encrypting the data stream according to the adjusted encryption attributes; and transmitting the encrypted data stream and information of the encryption attributes to the receiver.

    摘要翻译: 本发明提供了用于加密和解密数据流的方法,系统和装置,用于安全地发送数据流和用于安全地接收数据流以及数据流的安全传输。 数据流在其至少一部分被加密之后,经由信道从发送者发送到接收者。 一种用于加密的示例性方法包括:在传输期间调整加密属性; 根据调整后的加密属性加密数据流; 并将加密的数据流和加密属性的信息发送到接收机。