| 摘要 |
PROBLEM TO BE SOLVED: To execute firmware only in the way permitted by an owner in a mobile computing platform. SOLUTION: A system includes: a host processor 910 for performing a host operating system and a host application; firmware for booting the host processor 910 using one or more signing keys between boots, each signing key associated with a software image 921 loaded in the platform between the boots; and a security processor 931 of the platform bound with a secure memory store 920 that the firmware and other host processor 910 applications are unable to access, which manages the one or more signing keys and controls loading of images between the boots. COPYRIGHT: (C)2010,JPO&INPIT |
