公开(公告)号：JP2007026442A

公开(公告)日：2007-02-01

申请号：JP2006190883

申请日：2006-07-11

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： BADE STEVEN A ,  HOFF JAMES P ,  SUTTER SIEGFRIED ,  WARD JAMES P ,  WEBER HELMUT H

IPC: G06F21/22 ,  G06F9/46 ,  H04L9/08 ,  H04L9/32

CPC classification number: G06F21/57 ,  H04L9/0877 ,  H04L9/321 ,  H04L9/3234 ,  H04L9/3263

Abstract: PROBLEM TO BE SOLVED: To provide a method, apparatus and computer program for establishing virtual endorsement credentials in a data processing system. SOLUTION: The data processing system includes a hardware trusted platform module (TPM). Logical partitions are generated in the system. A different virtual TPM is generated for each one of the logical partitions. For each one of the logical partitions, the virtual TPM that was generated for the logical partition then dynamically generates a virtual endorsement credential for use by the logical partition that includes the virtual TPM. The virtual endorsement credential is generated within the data processing system without the data processing system or its devices accessing a trusted third party that is external to the data processing system. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在数据处理系统中建立虚拟认可凭证的方法，装置和计算机程序。 数据处理系统包括硬件可信平台模块（TPM）。 逻辑分区在系统中生成。 为每个逻辑分区生成不同的虚拟TPM。 对于逻辑分区中的每一个，为逻辑分区生成的虚拟TPM然后动态地生成供包括虚拟TPM的逻辑分区使用的虚拟签注凭证。 在数据处理系统内生成虚拟签注凭证，而数据处理系统或其设备访问数据处理系统外部的受信任的第三方。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JPH07168678A

公开(公告)日：1995-07-04

申请号：JP5939592

申请日：1992-02-13

Applicant: IBM

Inventor： BECK JAMES L ,  BOOTH JAMES R ,  BUCHANAN JAMES C ,  CLAFFEY-COHEN MARGARET E ,  COLE CARL P ,  LOUIE TIMOTHY J ,  NEEL II ALAN F ,  OLIVER LYNN M ,  WARD JAMES P ,  WEBB JAMES F

IPC: B41J29/38 ,  G06F3/12 ,  G06F13/42

Abstract: PURPOSE: To make an operator confirm the state of a printer without going to the place of the printer by making a data processor report whether information transmitted to the printer is data signals or state signals. CONSTITUTION: A computer 40 which is the data processor is connected to the printer 41 by a cable 42. When the power of the computer 40 and the printer 41 is turned ON, it is assumed that they are operated in a mode where the printer 41 is placed in a single direction. In order to activate a bidirectional mode so as to make the printer 41 able to transmit and receive the information, the computer 41 sets-INIT to low and the printer 41 sets +BUSY to high in response to it. When the printer 41 is prepared to receive a state command, +BUSY is turned low. In the case that the printer 41 does not set +BUSY, it is assumed that the computer 40 can not respond whether the printer 41 is unidiretional or bidirectional due to the fault of a hardware.

公开(公告)号：DE69908245D1

公开(公告)日：2003-07-03

申请号：DE69908245

申请日：1999-06-24

Applicant: IBM

Inventor： CROMER DARYL C ,  LOCKER HOWARD ,  WARD JAMES P ,  STEINMETZ MICHAEL J

IPC: G06F1/00 ,  G06F21/00 ,  H04L12/26 ,  H04L29/06

Abstract: A system for monitoring tamper events in a computer system 10 is disclosed. The computer system is on a network. The system comprises a tamper realtime clock (RTC) means 140 which receives at least one tamper event signal from the computer system. The tamper RTC includes a timer 178 for indicating the time of a tamper event and a management device 160 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 200 which includes the time of the tamper event to a system administrator of the network. Preferably the computer system 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 also sends network alerts when the cover is removed.

公开(公告)号：DE69229079D1

公开(公告)日：1999-06-10

申请号：DE69229079

申请日：1992-02-26

Applicant: IBM

Inventor： BECK JAMES L ,  BOOTH JAMES R ,  BUCHANAN JAMES C ,  CLAFFEY-COHEN MARGARET E ,  COLE CARL P ,  LOUIE TIMOTHY J ,  NEEL II ALAN F ,  OLIVER LYNN M ,  WARD JAMES P ,  WEBB JAMES F

IPC: G06F3/12 ,  G06F13/42 ,  B41J29/38

Abstract: A parallel interface connects a data processor and a printer so that each may transmit information to the other or receive information from the other. The transmitted information from the data processor can be data or status signals. The data or status signals are transmitted over the same eight information lines between the data processor and the printer with a predetermined signal being sent over another line from the data processor to the printer prior to transmission over the eight lines to identify whether the transmitted information is data or status signals. The printer sends status signals to the data processor over the same eight information lines after sending a predetermined signal to the data processor over a further line that it is going to transmit.

公开(公告)号：DE69908245T2

公开(公告)日：2004-04-08

申请号：DE69908245

申请日：1999-06-24

Applicant: IBM

Inventor： CROMER DARYL C ,  LOCKER HOWARD ,  WARD JAMES P ,  STEINMETZ MICHAEL J

IPC: G06F1/00 ,  G06F21/00 ,  H04L12/26 ,  H04L29/06

Abstract: A system for monitoring tamper events in a computer system 10 is disclosed. The computer system is on a network. The system comprises a tamper realtime clock (RTC) means 140 which receives at least one tamper event signal from the computer system. The tamper RTC includes a timer 178 for indicating the time of a tamper event and a management device 160 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 200 which includes the time of the tamper event to a system administrator of the network. Preferably the computer system 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 also sends network alerts when the cover is removed.

公开(公告)号：CA2271534A1

公开(公告)日：2000-01-01

申请号：CA2271534

申请日：1999-05-12

Applicant: IBM

Inventor： CROMER DARYL C ,  LOCKER HOWARD ,  WARD JAMES P ,  STEINMETZ MICHAEL J

IPC: G06F1/00 ,  G06F21/00 ,  H04L12/26 ,  H04L29/06 ,  G06F11/30 ,  G06F12/14

Abstract: A system for monitoring tamper events in a computer system is disclosed. The computer system is on a network. The system comprises a tamper realtime clock (RTC) means which receives at least one tamper event signal from the computer system. The tamper RTC 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.