Method and apparatus for secure execution using secure memory partition
    2.
    发明专利
    Method and apparatus for secure execution using secure memory partition 有权
    使用安全存储器分区进行安全执行的方法和装置

    公开(公告)号:JP2012053898A

    公开(公告)日:2012-03-15

    申请号:JP2011234826

    申请日:2011-10-26

    Inventor: MITTAL MILLIND

    Abstract: PROBLEM TO BE SOLVED: To guarantee secure execution of a computer against various types of threats.SOLUTION: An apparatus for secure execution using a secure memory partition comprises: a non-volatile memory to store a verification execution instruction 242; a system memory 220 having a secure partition 223; and a processor 210 coupled to the non-volatile memory and the system memory 220. The processor 210 comprises: an on-chip basic input/output system (BIOS) 215 including a bootstrap security logic 241; and an execution unit 211 coupled to the on-chip BIOS 215 and the system memory 220 and configured to perform operation specified by the bootstrap security logic 241. The operation includes a step of copying the verification execution instruction 242 from the non-volatile memory to the secure partition and a step of verifying the authenticity of the verification execution instruction 242.

    Abstract translation: 要解决的问题:保证计算机对各种威胁的安全执行。 解决方案:一种使用安全存储器分区进行安全执行的装置,包括:用于存储验证执行指令242的非易失性存储器; 具有安全分隔件223的系统存储器220; 以及耦合到非易失性存储器和系统存储器220的处理器210.处理器210包括:片上基本输入/输出系统(BIOS)215,其包括自举安全逻辑241; 以及耦合到片上BIOS 215和系统存储器220并被配置为执行由引导安全逻辑241指定的操作的执行单元211.该操作包括将验证执行指令242从非易失性存储器复制到 安全分区和验证验证执行指令242的真实性的步骤。版权所有:(C)2012,JPO&INPIT

    Apparatus and method for arithmetic operation
    4.
    发明专利
    Apparatus and method for arithmetic operation 有权
    装置和方法进行算术运算

    公开(公告)号:JP2006172486A

    公开(公告)日:2006-06-29

    申请号:JP2005364534

    申请日:2005-12-19

    Abstract: PROBLEM TO BE SOLVED: To perform a shift operation on a packed data type. SOLUTION: An apparatus for arithmetic operation is provided with: a shifter which performs a shift operation on a first packed data having a plurality of first data elements by a shift count in order to produce a second packed data having a plurality of second data elements; and a correction circuit which replaces at least one number of each of the plurality of second data elements and replaces all the replaced numbers corresponding to the shifted data element with number having the same value even in any data element of the shifted data elements. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题:对打包数据类型执行移位操作。 解决方案:一种用于算术运算的装置具有:移位器,其通过移位计数对具有多个第一数据元素的第一打包数据执行移位操作,以便产生具有多个第二数据元素的第二打包数据 数据元素; 以及校正电路,其替换多个第二数据元素中的每一个的至少一个,并且即使在移位的数据元素的任何数据元素中,也替换与具有相同值的数字的移位数据元素相对应的所有替换数字。 版权所有(C)2006,JPO&NCIPI

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