会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • EFFICIENT CERTIFICATE REVOCATION
    • 有效的证书撤销
    • WO2007096858A2
    • 2007-08-30
    • PCT/IL2006/000261
    • 2006-02-27
    • NDS LIMITEDWAISBARD, ErezSUMNER, Reuben
    • WAISBARD, ErezSUMNER, Reuben
    • G06F21/24
    • H04L9/3263
    • A digital certificate management system for managing certificates of devices having components, the system comprising a digital certificate issuing subsystem operative to issue certificates such that a certificate chain is formed for each of the devices, the certificates including a root certificate, a plurality of leaf certificates, and a plurality of component certificates, the certificate chain of each of the devices including one of the component certificates between the root certificate and an associated one of the leaf certificates, different component certificates being issued for the devices having different combinations of the components. Related apparatus and methods are also described.
    • 一种用于管理具有组件的设备的证书的数字证书管理系统,所述系统包括数字证书颁发子系统,该数字证书颁发子系统可操作以颁发证书,以便为每个设备形成证书链,所述证书包括根证书,多个叶证书 和多个组件证书,每个设备的证书链包括根证书和相关联的一个叶证书之间的组件证书之一,对于具有不同组件组合的设备发出不同的组件证书。 还描述了相关装置和方法。
    • 3. 发明申请
    • PREVENTION OF PLAYBACK ATTACKS USING OTP MEMORY
    • 使用OTP内存防止回击攻击
    • WO2013128244A1
    • 2013-09-06
    • PCT/IB2012/053074
    • 2012-06-19
    • NDS LIMITEDBELENKY, YaacovSUMNER, Reuben
    • BELENKY, YaacovSUMNER, Reuben
    • G06F21/24
    • H04L9/3247G06F3/0679G06F21/64
    • A method for data security includes receiving, in a processor having a one-time programmable (OTP) memory, which includes multiple bits and has a current state defined by the bits of the OTP that have been programmed, new information to be written to a data memory. Based on the new information and the current state, at least one further bit of the OTP memory is selected to be programmed, thereby defining a new state of the OTP memory. A new digital signature is computed over the new information and the new state. The new information and the new digital signature are saved in the data memory. After saving the new information and the new digital signature in the data memory, the at least one further bit of the OTP memory is programmed, whereby the new state becomes the current state. Related apparatus and methods are also disclosed.
    • 一种用于数据安全的方法包括在具有一次可编程(OTP)存储器的处理器中接收包括多个位并具有由已被编程的OTP的位定义的当前状态的待写入的新信息 数据存储器 基于新信息和当前状态,选择OTP存储器的至少另外一个位进行编程,从而定义OTP存储器的新状态。 对新信息和新状态计算新的数字签名。 新的信息和新的数字签名被保存在数据存储器中。 在将新信息和新的数字签名保存在数据存储器中之后,OTP存储器的至少另外一个位被编程,从而新的状态变为当前状态。 还公开了相关的装置和方法。
    • 4. 发明申请
    • SECURE DATA UTILIZATION
    • 安全数据利用
    • WO2009090505A1
    • 2009-07-23
    • PCT/IB2008/050197
    • 2008-01-20
    • NDS LIMITEDELBAUM, ReuvenSUMNER, Reuben
    • ELBAUM, ReuvenSUMNER, Reuben
    • G06F21/00
    • G06F21/51G06F21/72
    • A system, comprising an external memory operative to store data therein, the data including a plurality of sections, each of the sections being associated with a signature, and an internal memory operationally connected to the external memory, and a processor arrangement operationally connected to the internal memory, the processor arrangement including a transfer module to transfer one section from the external to the internal memory, an authentication module to authenticate the signature of the section transferred from the external memory, a validity status module to identify the section as valid if the signature is authentic, and an execution module to utilize the section of the data only if the section is valid, wherein the validity status module is operative to invalidate the section, if the content of the section is changed while stored in the internal memory. Related apparatus and methods are also described.
    • 一种系统,包括用于在其中存储数据的外部存储器,所述数据包括多个部分,每个部分与签名相关联,以及可操作地连接到外部存储器的内部存储器,以及可操作地连接到所述外部存储器的处理器装置 内部存储器,所述处理器装置包括用于将一部分从外部传送到内部存储器的传送模块,用于认证从外部存储器传送的部分的签名的认证模块,如果 签名是真实的,以及执行模块,仅在所述部分有效时才利用所述数据部分,其中如果所述部分的内容被存储在所述内部存储器中而改变,则所述有效状态模块可操作以使所述部分无效。 还描述了相关装置和方法。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR PREVENTING CLONING OF SECURITY ELEMENTS
    • 防止安全元件克隆的方法和装置
    • WO2004088484A1
    • 2004-10-14
    • PCT/IL2003/000263
    • 2003-03-31
    • NDS LIMITEDSUMNER, Reuben
    • SUMNER, Reuben
    • G06F1/00
    • G06F21/79
    • A method for preventing cloning of a genuine security element is described. The method includes associating a random number generator (RNG) in the security element with a portion of a non-volatile memory (NVM) in the security element, and activating the RNG to automatically write, during a normal operation mode of the security element, a new random number into the portion of the NVM whenever an attempt is made to write into the portion of the NVM. Any unit other than the RNG is preferably prevented from writing data into the portion of the NVM during the normal operation mode of the security element. Related apparatus and method are also described.2
    • 描述了用于防止真实安全元件的克隆的方法。 该方法包括将安全元件中的随机数发生器(RNG)与安全元件中的非易失性存储器(NVM)的一部分相关联,并且在安全元件的正常操作模式期间激活RNG以自动写入, 每当尝试写入NVM的该部分时,NVM的一部分中的新的随机数。 在安全元件的正常操作模式期间,优选地防止除了RNG之外的任何单元将数据写入NVM的该部分。 还描述了相关的装置和方法