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1. WO2020140261 - METHOD AND SYSTEM FOR PROTECTING DATA PROCESSED BY DATA PROCESSING ACCELERATORS


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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/CN2019/070402 18A54748
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
04 January 2019
Applicant
BAIDU.COM TIMES TECHNOLOGY (BEIJING) CO., LTD. et al.
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
b.
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
c.
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.

A data processing system performs a secure boot using a security module (e. g., a trusted platform module (TPM)) of a host system (301). The system verifies that an operating system (OS) and one or more drivers including an accelerator driver associated with a data processing (DP) accelerator is provided by a trusted source (302). The system launches the accelerator driver within the OS (303). The system generates a trusted execution environment (TEE) associated with one or more processors of the host system (304). The system launches an application and a runtime library within the TEE, where the application communicates with the DP accelerator via the runtime library and the accelerator driver (305).


6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     3    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     G06F; 9/30(2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
     G06F
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
CNPAT, CNKI, WPI, EPODOC, IEEE: boot, security, accelerator, driver, TEE, TPM, data w processing, runtime, library, launch, application, host w system, verify, trust, attack, side w channel, kernel, link

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
A
US 2015072726 A1 (THE BOEING COMPANY) 12 March 2015 (2015-03-12)
1-21
description, paragraphs [0026]-[0054], figures 3-4
(2)
A
US 2017337246 A1 (WASAI TECHNOLOGY INC.) 23 November 2017 (2017-11-23)
1-21
the whole document
(3)
A
US 2018307535 A1 (HITACHI, LTD.) 25 October 2018 (2018-10-25)
1-21
the whole document
(4)
A
US 10031760 B1 (XILINX, INC.) 24 July 2018 (2018-07-24)
1-21
the whole document
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
"X"
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
"Y"
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
"&"
document member of the same patent family

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
US 2015072726 A1
12 March 2015
TW 201512878 A
RU 2016105585 A
CA 2922983 A1
JP 2017501498 A
CN 105531664 A
KR 20160054556 A
US 2018359810 A1
WO 2015038221 A1
EP 3044661 A1
SG 10201902154 A1
SG 11201601381 A1
BR 112016005248 A2
IN 201647005790 A
01 April 2015
17 October 2017
19 March 2015
12 January 2017
27 April 2016
16 May 2016
13 December 2018
19 March 2015
20 July 2016
29 April 2019
30 March 2016
01 August 2017
05 August 2016
US 2017337246 A1
23 November 2017
CN 107402952 A
28 November 2017
US 2018307535 A1
25 October 2018
JP WO2017119098 A1
WO 2017119098 A1
08 November 2018
13 July 2017
US 10031760 B1
24 July 2018
None
Name and mailing address of the ISA/:
National Intellectual Property Administration, PRC
6, Xitucheng Rd., Jimen Bridge, Haidian District, Beijing 100088
China
Facsimile No. (86-10)62019451
Date of the actual completion of the international search:
06 September 2019
Date of mailing of the international search report:
08 October 2019
Authorized officer:
LIU,Jian
Telephone No. 86-(10)-53961304
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