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    • 1. 发明授权
    • Computer system which is disabled when it is disconnected from a network
    • 计算机系统在与网络断开连接时被禁用
    • US6105136A
    • 2000-08-15
    • US23606
    • 1998-02-13
    • Daryl C. CromerBrandon J. EllisonHoward J. LockerMichael J. SteinmetzRandall S. SpringfieldJames P. Ward
    • Daryl C. CromerBrandon J. EllisonHoward J. LockerMichael J. SteinmetzRandall S. SpringfieldJames P. Ward
    • G06F1/00G06F21/78G06F21/86G06F11/30
    • G06F21/86G06F21/78
    • Described is a computer system which is coupled to a remote computer via a data communication link. The computer system has a normally closed enclosure and is capable of securing data retained within the system against unauthorized access. The computer system includes an erasable memory element mounted within the enclosure for selective activation to active and inactive states and for receiving and storing a security password when in the active state. A manually operable option switch is mounted within the enclosure. The option switch is operatively connected with the erasable memory element and manually settable by a user of the computer system for setting the erasable memory element to the active and inactive states. A communication line detector is operatively connected with the erasable memory element for detecting a disconnection of the data communication link and for clearing any stored security password from the erasable memory element in response to a change of the communication link detector between a first state and a second state.
    • 描述了经由数据通信链路耦合到远程计算机的计算机系统。 计算机系统具有常闭外壳,并且能够保护系统中保留的数据,防止未经授权的访问。 计算机系统包括安装在机箱内的可擦除存储器元件,用于选择性地激活到主动和非活动状态,并且在处于活动状态时接收和存储安全密码。 手动可操作的选项开关安装在外壳内。 选项开关可操作地与可擦除存储元件连接,并且可由计算机系统的用户手动设置,用于将可擦除存储器元件设置为活动状态和非活动状态。 通信线路检测器可操作地与可擦除存储器元件连接,用于响应于通信链路检测器在第一状态和第二状态之间的变化来检测数据通信链路的断开并用于从可擦除存储器元件清除任何存储的安全密码 州。
    • 5. 发明授权
    • Method and system for determining the physical location of computers in a network by storing a room location and MAC address in the ethernet wall plate
    • 通过在以太网墙板中存储房间位置和MAC地址来确定网络中计算机的物理位置的方法和系统
    • US06601097B1
    • 2003-07-29
    • US09480030
    • 2000-01-10
    • Richard W. ChestonDaryl C. CromerDhruv M. DesaiHoward J. LockerJames P. Ward
    • Richard W. ChestonDaryl C. CromerDhruv M. DesaiHoward J. LockerJames P. Ward
    • G06F15177
    • H04L29/12018H04L29/12009H04L29/12783H04L61/10H04L61/35
    • A method for determining the physical locations of a plurality of computers in a network is disclosed. The network includes a plurality of wall plates, each of the wall plates for coupling one of the computers to the network. The method and system comprises providing an additional information physical layer and logic in each of the wall plates. The method and system further comprises capturing and storing the system media access-controller (MAC) address of the connect computer in the additional logic of each of the plurality of wall plates and storing a physical address of the wall plate in the logic of each of the plurality of wall plates. The method and system also comprises providing a command from the network that will cause the system MAC address and the physical address of at least one of the plurality of computers to be provided to an application in the network. A system and method in accordance with the present invention adds a low cost physical layer and logic within an Ethernet wall plate associated with the computer on the network. The logic is designed to respond to a broadcast signal to a UDP (User Datagram Protocol) port. In so doing the physical location of the computer can be determined. In a preferred embodiment, a command is provided from the network that will cause the MAC address and the physical address of at least one of the plurality of computers to be provided to an inventory application in the network, thereby allowing a network administrator to remotely determine the physical location (room, floor, building, etc.) of any and all computers attached to the network.
    • 公开了一种用于确定网络中的多个计算机的物理位置的方法。 网络包括多个壁板,每个壁板用于将计算机中的一个耦合到网络。 该方法和系统包括在每个壁板中提供附加信息物理层和逻辑。 所述方法和系统还包括将连接计算机的系统媒体访问控制器(MAC)地址捕获并存储在多个壁板中的每一个的附加逻辑中,并将墙板的物理地址存储在每个壁板的逻辑中 多个壁板。 该方法和系统还包括从网络提供将使系统MAC地址和至少一个计算机的物理地址被提供给网络中的应用的命令。 根据本发明的系统和方法在与网络上的计算机相关联的以太网墙板内增加了低成本的物理层和逻辑。 该逻辑被设计为响应于UDP(用户数据报协议)端口的广播信号。 在这样做时,可以确定计算机的物理位置。 在优选实施例中,从网络提供将使多个计算机中的至少一个计算机的MAC地址和物理地址提供给网络中的清单应用的命令,从而允许网络管理员远程确定 连接到网络的任何和所有计算机的物理位置(房间,楼层,建筑物等)。
    • 7. 发明授权
    • System for detecting tamper events and capturing the time of their occurrence
    • 用于检测篡改事件并捕获其发生时间的系统
    • US06357007B1
    • 2002-03-12
    • US09108416
    • 1998-07-01
    • Daryl C. CromerHoward LockerJames P. WardMichael J. Steinmetz
    • Daryl C. CromerHoward LockerJames P. WardMichael J. Steinmetz
    • G06F1134
    • H04L63/10G06F21/86G06F21/88G06F2211/005G06F2221/2101G06F2221/2151H04L43/00H04L43/106H04L2463/121
    • A system for monitoring tamper events in a computer system is disclosed. The computer system is on a network. The system comprises a tamper real time clock (RTC) means which receives at least one tamper event signal from the computer system. The tamper RTC means includes a timer for indicating the time of a tamper event and a management device for receiving the at least one tamper event signal. The management device issues a command to the tamper RTC means to obtain the time of the at least one tamper event. The management device also generates a network packet which includes the time of the tamper event to a system administrator of the network. The present invention in a preferred embodiment is directed to a computer system which has the ability to functionally detect and store the time of a tamper event. A tamper real time clock (RTC) circuit is operatively connected with logic to store the date and time of an event as it occurs. In a preferred embodiment, the tamper event could be as simple as a toggle switch being activated when a cover on the computer system is removed. The computer system could also send network alerts when the cover is removed.
    • 公开了一种用于在计算机系统中监视篡改事件的系统。 计算机系统在网络上。 该系统包括从计算机系统接收至少一个篡改事件信号的篡改实时时钟(RTC)装置。 篡改RTC装置包括用于指示篡改事件的时间的定时器和用于接收至少一个篡改事件信号的管理装置。 管理设备向篡改RTC装置发出命令以获得至少一个篡改事件的时间。 管理设备还生成包括篡改事件的时间给网络的系统管理员的网络分组。 在优选实施例中的本发明涉及一种具有功能检测和存储篡改事件的时间的能力的计算机系统。 篡改实时时钟(RTC)电路与逻辑操作连接,以存储事件发生时的日期和时间。 在一个优选实施例中,篡改事件可以与在计算机系统上的盖被移除时激活的拨动开关一样简单。 当盖子被移除时,计算机系统还可以发送网络警报。
    • 8. 发明授权
    • Method and system for detecting an authorized tamper event
    • 用于检测授权篡改事件的方法和系统
    • US06218941B1
    • 2001-04-17
    • US09108479
    • 1998-07-01
    • Daryl C. CromerHoward LockerJames P. WardMichael J. Steinmetz
    • Daryl C. CromerHoward LockerJames P. WardMichael J. Steinmetz
    • G08B1314
    • G06F21/87
    • A system and method for monitoring tamper events in a computer system in accordance with the present invention is disclosed. The system comprises a detector means for detecting at least one tamper event and for providing an indication when the tamper event has occurred for longer than a predetermined time period. The system also includes an adapter means coupled to the detector means for receiving the indication and for disabling the computer system. The present invention is directed to a computer system, which has the ability to functionally determine if a tamper event is authorized and therefore allows the computer to operate after such an event. In a preferred embodiment, the tamper event could be as simple as a toggle switch being activated when the cover of the personal computer is removed.
    • 公开了一种用于监视根据本发明的计算机系统中的篡改事件的系统和方法。 该系统包括用于检测至少一个篡改事件的检测器装置,并且用于当篡改事件发生时间超过预定时间段时提供指示。 该系统还包括耦合到检测器装置的适配器装置,用于接收指示并禁用计算机系统。 本发明涉及一种计算机系统,其具有功能性地确定篡改事件是否被授权的能力,因此允许计算机在这样的事件之后操作。 在优选实施例中,篡改事件可以像在移除个人计算机的盖子时激活的拨动开关一样简单。
    • 10. 发明申请
    • Apparatus for improving computer security
    • 用于提高计算机安全性的装置
    • US20080168280A1
    • 2008-07-10
    • US12053580
    • 2008-03-22
    • Paul E. McKenneyPaul J. LandsbergJames P. WardAndrew G. Kegel
    • Paul E. McKenneyPaul J. LandsbergJames P. WardAndrew G. Kegel
    • G06F12/14
    • G06F21/86G06F2221/2143
    • Indicating when the cover for a computer chassis has been opened is disclosed. A computer of an embodiment of the invention includes a chassis and a basic input/output system (BIOS), or another type of firmware. The chassis has an openable cover, and circuitry indicating when the openable cover has been opened. The BIOS has a non-volatile memory in which a flag is set when the circuitry indicates that the openable cover has been opened. The computer may further include always-on circuitry, such as time-of-day and real-time clock circuitry, to which the circuitry indicating when the openable cover has been opened is electrically connected. The computer may also include one or more encryption and/or signing modules that encrypt and/or sign data according to one or more keys. The keys are rendered invalid when the cover of the chassis has been opened.
    • 指出计算机机壳盖何时已打开。 本发明实施例的计算机包括底盘和基本输入/输出系统(BIOS)或其他类型的固件。 机箱具有可打开的盖子,电路指示何时打开盖子。 BIOS具有非易失性存储器,当电路指示可打开的盖已经打开时,其中标志被置位。 计算机可以进一步包括始终在线的电路,例如时间和实时时钟电路,电路指示何时可打开的盖已经被打开。 计算机还可以包括根据一个或多个密钥加密和/或签署数据的一个或多个加密和/或签名模块。 当机箱的盖子打开时,钥匙将无效。