利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.013 秒)

    Security within integrated circuits
    4.
    发明公开
    Security within integrated circuits 审中-公开
    Sicherheit in integrierten Schaltkreisen

    公开(公告)号：EP2662796A2

    公开(公告)日：2013-11-13

    申请号：EP13179480.2

    申请日：2009-05-21

    申请人： NDS LIMITED

    发明人： Shen-Orr, Chaim ,  Shkedy, Zvi ,  Elbaum, Reuven ,  Shlomovich, Yonatan ,  Shapiro, Yiga ,  Belenky, Yaacov ,  Summer, Reuben ,  Mantin, Itsik

    IPC分类号： G06F21/00 ,  G06F21/79

    CPC分类号： G06F21/60 ,  G06F21/79 ,  H04L9/003

    摘要： A method for hindering detection of secret information unintentionally leaked from a secret held in a memory unit, the method comprising: storing the secret information in a location within the memory unit; episodically re-deriving the secret information; and storing the re-derived secret information at the location within the memory unit, wherein the episodic re-deriving of the secret information causes an episodic change of physical contents of the memory unit holding the secret information, thereby causing the secret information unintentionally leaked from the memory unit to vary over time causing any detector of leaked information requiring long collection times to receive an average of the leaked information, the average of the leaked information not revealing the leaked information.

    摘要翻译： 一种用于阻止从存储单元中保存的秘密无意中泄露的秘密信息的检测方法，所述方法包括：将所述秘密信息存储在所述存储器单元内的位置; 偶然地重新获得秘密信息; 以及将所述重新导出的秘密信息存储在所述存储单元内的位置处，其中所述秘密信息的情节重新导出导致保存所述秘密信息的所述存储单元的物理内容的情节改变，从而导致所述秘密信息无意地从 存储器单元随时间变化，导致任何泄漏信息的检测器需要较长的收集时间来接收泄漏信息的平均值，泄露的信息的平均值不会泄露泄露的信息。

    Security within integrated circuits
    9.
    发明公开
    Security within integrated circuits 审中-公开
    安全集成电路

    公开(公告)号：EP2662796A3

    公开(公告)日：2014-03-05

    申请号：EP13179480.2

    申请日：2009-05-21

    申请人： NDS LIMITED

    发明人： Shen-Orr, Chaim ,  Shkedy, Zvi ,  Elbaum, Reuven ,  Shlomovich, Yonatan ,  Shapiro, Yiga ,  Belenky, Yaacov ,  Summer, Reuben ,  Mantin, Itsik

    IPC分类号： G06F21/60 ,  G06F21/79

    CPC分类号： G06F21/60 ,  G06F21/79 ,  H04L9/003

    摘要： A method for hindering detection of secret information unintentionally leaked from a secret held in a memory unit, the method comprising: storing the secret information in a location within the memory unit; episodically re-deriving the secret information; and storing the re-derived secret information at the location within the memory unit, wherein the episodic re-deriving of the secret information causes an episodic change of physical contents of the memory unit holding the secret information, thereby causing the secret information unintentionally leaked from the memory unit to vary over time causing any detector of leaked information requiring long collection times to receive an average of the leaked information, the average of the leaked information not revealing the leaked information.

    Native scrambling system
    10.
    发明公开
    Native scrambling system 审中-公开
    NATIVES SCRAMBLING-SYSTEM

    公开(公告)号：EP2579497A1

    公开(公告)日：2013-04-10

    申请号：EP13150258.5

    申请日：2006-03-22

    申请人： NDS LIMITED

    发明人： Shen-Orr, Chaim ,  Hibshoosh, Eliphaz ,  Belenky, Yaacov ,  Levy, Yaacov

    IPC分类号： H04L9/06 ,  H04L9/18

    CPC分类号： H04L63/0428 ,  H04N21/23476 ,  H04N21/434 ,  H04N21/44055

    摘要： A system (10) for scrambling / descrambling packets (20,22) of a stream of content (16) is disclosed, each of the packets (20,22) having a must stay clear (MSC) section (24) which is always kept in the clear, the system (10) comprising: an input handler (12) including: a receiving module (34) to receive the stream (16); and a mask module (46) to create, for each of the packets (20,22), a data mask (48) which includes all data of the MSC section except for at least one bit of data of the MSC section; and a scrambling / descrambling device (14) operationally associated with the input handler (12), the scrambling / descrambling device (14) including: a receiving module (50) to receive the data mask (48) for each of the packets (20,22) from the input handler (12); and an Initial Value module (52) to determine an Initial Value (70) for each of the packets (20,22) as a function of the data mask (48) of one of the packets (20,22) being processed such that the Initial Value (70) is not a function of the at least one bit of data of the MSC section (24) of the one packet (20,22) being processed, the scrambling /descrambling device (14) being adapted to at least one of scramble and descramble the packets (20,22) based on the Initial Value (70) and a Control Word (62).

    摘要翻译： 公开了一种用于对内容流（16）进行加扰/解扰分组（20,22）的系统（10），每个分组（20,22）具有必须保持清晰（MSC）部分（24），其总是 保持清晰，系统（10）包括：输入处理器（12），包括：接收模块（34），用于接收流（16）; 以及掩模模块（46），用于为每个分组（20,22）创建除了MSC部分的至少一个数据位之外的MSC部分的所有数据的数据掩码（48）; 以及与所述输入处理器（12）可操作地相关联的加扰/解扰设备（14），所述加扰/解扰设备（14）包括：接收模块（50），用于为每个分组（20）接收数据掩码（48） ，22）; 以及初始值模块（52），用于根据正被处理的分组（20,22）之一的数据掩码（48）确定每个分组（20,22）的初始值（70），使得 初始值（70）不是正被处理的一个分组（20,22）的MSC部分（24）的数据的至少一个比特的函数，加扰/解扰装置（14）至少适合 基于初始值（70）和控制字（62）对数据包（20,22）进行加扰和解扰之一。