公开(公告)号：US10346343B2

公开(公告)日：2019-07-09

申请号：US15192739

申请日：2016-06-24

Applicant: Intel Corporation

Inventor： Vikram Suresh ,  Sudhir Satpathy ,  Sanu Mathew ,  Neeraj Upasani

IPC: H04L9/00 ,  G06F13/42 ,  G06F21/44 ,  G06F12/1009 ,  G06F12/14 ,  G06F13/16 ,  G06F21/57 ,  G06F21/76 ,  G06F21/79 ,  G09C1/00 ,  H04L9/32 ,  H04L9/06

Abstract: Encryption of a BIOS using a programmable logic device (PLD) is described. A PLD may include a static random-access memory area including programmable logic in a Lookup Table to receive a request to authenticate a basic input/output system (BIOS) executing on a processor coupled to the PLD. The PLD may calculate a hash value of a message associated with the BIOS using a Secure Hash Algorithm (SHA). The PLD may also include a random-access memory area including a first embedded random access memory block (EBR) to store a first portion of a 256-bit message digest associated with the message, a fifth portion of the 256-bit message digest, and second, third, fourth, sixth, seventh, and eighth EBRs to store second, third, fourth, sixth, seventh, and eighth portions of the 256-bit message digest, respectively.

公开(公告)号：US20190196866A1

公开(公告)日：2019-06-27

申请号：US15852021

申请日：2017-12-22

Applicant: Intel Corporation

Inventor： Mohan J. Kumar ,  Murugasamy K. Nachimuthu ,  Sarathy Jayakumar ,  Sergiu D. Ghetie ,  Neeraj Upasani ,  Ronald N. Story

IPC: G06F9/48 ,  G06F9/30 ,  G06F13/40

CPC classification number: G06F9/4818 ,  G06F9/3012 ,  G06F13/4068 ,  G06F2213/0008 ,  G06F2213/0024 ,  G06F2213/0026

Abstract: There is disclosed in one example a processor, including: a protected runtime mode (PRM) module to receive a PRM interrupt and to: suspend operation of a software task executing on the processor; save processor state information; place the microprocessor into PRM; access a PRM handler in a designated PRM memory region, wherein the PRM handler comprises a platform specific task; restore the processor state; and resume operation of the software task.

公开(公告)号：US11138072B2

公开(公告)日：2021-10-05

申请号：US15852021

申请日：2017-12-22

Applicant: Intel Corporation

Inventor： Mohan J. Kumar ,  Murugasamy K. Nachimuthu ,  Sarathy Jayakumar ,  Sergiu D. Ghetie ,  Neeraj Upasani ,  Ronald N. Story

IPC: G06F11/14 ,  G06F11/07

Abstract: There is disclosed in one example a processor, including: a protected runtime mode (PRM) module to receive a PRM interrupt and to: suspend operation of a software task executing on the processor; save processor state information; place the microprocessor into PRM; access a PRM handler in a designated PRM memory region, wherein the PRM handler comprises a platform specific task; restore the processor state; and resume operation of the software task.