Patent SG-11201804696R-A (SG)
Title: Techniques for metadata processing
Inventor: DEHON ANDRE'
IPC: G06F9/38
Filed: 2016-12-12
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau 111111111111110 III OE III DID III II III 111111111111111 R1111111111111 (43) International Publication Date 22 June 2017 (22.06.2017) (10) International Publication Number WO 2017/106101 A3 WIPO I PCT (51) International Patent Classification: GOOF 9 / 3 0 (2006.01) GOOF 9 / 3 8 (2006.01) GOOF 21/52 (2013.01) GOOF 21/62 (2013.01) GOOF 12/0875 (2016.01) (21) International Application Number: PCT/US2016/066188 (22) International Filing Date: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, Kfl, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: with international search report (Art 21(3)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) (88) Date of publication of the international search report: 10 August 2017 12 December 2016 (12.12.2016) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/268,639 17 December 2015 (17.12.2015) US 62/270,187 21 December 2015 (21.12.2015) US 15/168,689 31 May 2016 (31.05.2016) US (71) Applicant: THE CHARLES STARK DRAPER LABORATORY, INC. [US/US]; 555 Technology Square, Cambridge, MA 02139-3563 (US). (72) Inventors: DEHON, Andre'; 4743 Sansom St., Phil- adelphia, Pennsylvania 19139 (US). BOLING, Eli; 99 Ple- assant Street, Manchester, MA 01944 (US). (74) Agents: SATURNELLI, Anne, E. et al.; Muirhead And Saturnelli, LLC, 200 Friberg Parkway, Suite 1001, West- borough, MA 01581 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, W O 20 17 / 106 10 1 A3 (54) Title: TECHNIQUES FOR METADATA PROCESSING (57) : Techniques are described for metadata processing that can be used to encode an arbitrary number of security policies for code running on a processor. Metadata may be added to every word in the system and a metadata processing unit may be used that works in parallel with data flow to enforce an arbitrary set of policies. In one aspect, the metadata may be characterized as un- bounded and software programmable to be applicable to a wide range of metadata processing policies. Techniques and policies have a wide range of uses including, for example, safety, security, and synchronization. Additionally, described are aspects and techniques in connection with metadata processing in an embodiment based on the RISC-V architecture.