公开(公告)号：US20130326632A1

公开(公告)日：2013-12-05

申请号：US13958986

申请日：2013-08-05

Applicant: Cisco Technology Inc.

Inventor： Chaim Shen-Orr ,  Zvi Shkedy ,  Reuven Elbaum ,  Yonatan Shlomovich ,  Yigal Shapiro ,  Yaacov Belenky ,  Yaakov (Jordan) Levy ,  Reuben Sumner ,  Itsik Mantin

IPC: G06F21/60

CPC classification number: G06F21/60 ,  G06F21/79 ,  H04L9/003

Abstract: A method for hindering detection of information unintentionally leaked from a secret held in a memory unit is described, the method including receiving a triggering event waiting for at least a first amount of time to pass after the receipt of the triggering event, the memory unit being in a non-operational state during the at least a first amount of time after the at least a first amount of time has passed, changing at least one first condition under which the memory unit operates, thereby causing the memory unit to enter an operational state, waiting for a second amount of time to pass after the changing at least one first condition, and changing, after the second amount of time, at least one second condition under which the memory unit operates, thereby causing the memory unit to enter the non-operational state, wherein access to the secret information is enabled only during the second amount of time, and detection of secret information unintentionally leaked is limited during the first amount of time. Related apparatus and methods are also described.

Abstract translation: 描述了阻止从存储单元中保存的秘密泄漏的信息的检测的方法，所述方法包括在接收到触发事件之后接收等待至少第一时间量的触发事件以通过，所述存储单元为 在所述至少第一时间量之后的至少第一时间量内处于非操作状态，改变所述存储器单元在其下操作的至少一个第一状态，从而使所述存储器单元进入操作状态 在改变至少一个第一条件之后等待第二时间量过去，并且在所述第二时间量之后改变所述存储器单元操作的至少一个第二状态，从而使所述存储器单元进入非 其中对秘密信息的访问仅在第二时间段期间被启用，并且在f期间有意无意地泄漏的秘密信息的检测受到限制 第一次的时间 还描述了相关装置和方法。

公开(公告)号：US09045095B2

公开(公告)日：2015-06-02

申请号：US14027611

申请日：2013-09-16

Applicant: Cisco Technology Inc.

Inventor： Yaron Sella ,  Chaim Shen-Orr

IPC: B60R16/023 ,  H04W12/04 ,  H04L9/08 ,  H04W4/04 ,  H04L29/08

CPC classification number: B60R16/023 ,  H04L9/0819 ,  H04L63/18 ,  H04L67/12 ,  H04W4/046 ,  H04W12/04

Abstract: A secure wireless vehicle control system includes a power source installed in a vehicle and a plurality of electronic control units (ECUs) operative to control the operation of components of the vehicle, where each of the ECUs is connected to the power source via electrical wiring, configured with at least a communications unit for receiving security information via the electrical wiring, and also configured with a wireless transceiver operative to use the security information to secure wireless transmission. An ECU includes a wired connection to a vehicle's power source, a communications unit operative to at least receive security information via the wired connection, and a wireless transceiver operative to communicate with at least one other ECU, where the wireless transceiver is configured to use the security information to secure communications with the at least one other ECU. A method for securing wireless communications for an ECU includes receiving security information on a communications unit via a wired connection to a vehicle's power source, and using the security information to secure the wireless communications.

Abstract translation: 安全的无线车辆控制系统包括安装在车辆中的电源和多个电子控制单元（ECU），其操作用于控制车辆部件的操作，其中每个ECU通过电线连接到电源， 配置有至少一个用于经由电线接收安全信息的通信单元，并且还配置有可操作以使用安全信息来确保无线传输的无线收发器。 ECU包括到车辆电源的有线连接，可操作以至少经由有线连接接收安全信息的通信单元和可操作以与至少一个其它ECU通信的无线收发器，其中无线收发器被配置为使用 安全信息以确保与至少一个其他ECU的通信。 一种用于确保ECU的无线通信的方法包括：经由与车辆电源的有线连接在通信单元上接收安全信息，以及使用该安全信息来确保无线通信。

公开(公告)号：US20140164788A1

公开(公告)日：2014-06-12

申请号：US14100380

申请日：2013-12-09

Applicant: Cisco Technology Inc.

Inventor： Yaacov Belenky ,  Chaim Shen-Orr

IPC: G06F9/30 ,  G06F21/60

CPC classification number: G06F21/74 ,  G06F21/14

Abstract: A state sensitive device is described, the device including a state register which stores a record of the effective-state of the device, a mask field having a value which varies according to a value of the state register, and a processor which changes the value of the mask field to a new value of the mask field when there is a change in the value of the state register, wherein, the processor performs a state dependent calculation requiring the value of the mask field as an operand in the state dependent calculation which will yield an incorrect result if the value of the mask field does not properly correspond to the value of the state register. Related methods, systems and apparatus are also described.

Abstract translation: 描述了一种状态敏感设备，该设备包括存储设备的有效状态的记录的状态寄存器，具有根据状态寄存器的值而变化的值的掩码域，以及改变该值的处理器 当处于状态寄存器的值的变化时，掩码字段的值与掩码字段的新值相关，其中处理器执行需要掩模字段的值的状态相关计算作为状态相关计算中的操作数， 如果掩码字段的值不正确对应于状态寄存器的值，将产生不正确的结果。 还描述了相关方法，系统和装置。

公开(公告)号：US09747471B2

公开(公告)日：2017-08-29

申请号：US14100380

申请日：2013-12-09

Applicant: Cisco Technology Inc.

Inventor： Yaacov Belenky ,  Chaim Shen-Orr

IPC: G06F11/30 ,  G06F12/14 ,  G06F21/74 ,  G06F21/14

CPC classification number: G06F21/74 ,  G06F21/14

Abstract: A state sensitive device is described, the device including a state register which stores a record of the effective-state of the device, a mask field having a value which varies according to a value of the state register, and a processor which changes the value of the mask field to a new value of the mask field when there is a change in the value of the state register, wherein, the processor performs a state dependent calculation requiring the value of the mask field as an operand in the state dependent calculation which will yield an incorrect result if the value of the mask field does not properly correspond to the value of the state register. Related methods, systems and apparatus are also described.

公开(公告)号：US08913745B2

公开(公告)日：2014-12-16

申请号：US13958986

申请日：2013-08-05

Applicant: Cisco Technology Inc.

Inventor： Chaim Shen-Orr ,  Zvi Shkedy ,  Reuven Elbaum ,  Yonatan Shlomovich ,  Yigal Shapiro ,  Yaacov Belenky ,  Yaakov (Jordan) Levy ,  Reuben Sumner ,  Itsik Mantin

IPC: H04L9/34 ,  G06F21/79 ,  G06F21/60 ,  H04L9/18

CPC classification number: G06F21/60 ,  G06F21/79 ,  H04L9/003

Abstract: A method for hindering detection of information unintentionally leaked from a secret held in a memory unit is described, the method including receiving a triggering event waiting for at least a first amount of time to pass after the receipt of the triggering event, the memory unit being in a non-operational state during the at least a first amount of time after the at least a first amount of time has passed, changing at least one first condition under which the memory unit operates, thereby causing the memory unit to enter an operational state, waiting for a second amount of time to pass after the changing at least one first condition, and changing, after the second amount of time, at least one second condition under which the memory unit operates, thereby causing the memory unit to enter the non-operational state, wherein access to the secret information is enabled only during the second amount of time, and detection of secret information unintentionally leaked is limited during the first amount of time. Related apparatus and methods are also described.

Abstract translation: 描述了阻止从存储单元中保存的秘密泄漏的信息的检测的方法，所述方法包括在接收到触发事件之后接收等待至少第一时间量的触发事件以通过，所述存储单元为 在所述至少第一时间量之后的至少第一时间量内处于非操作状态，改变所述存储器单元在其下操作的至少一个第一状态，从而使所述存储器单元进入操作状态 在改变至少一个第一条件之后等待第二时间量过去，并且在所述第二时间量之后改变所述存储器单元操作的至少一个第二状态，从而使所述存储器单元进入非 其中对秘密信息的访问仅在第二时间段期间被启用，并且在f期间有意无意地泄漏的秘密信息的检测受到限制 第一次的时间 还描述了相关装置和方法。