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1. (WO2019049217) SYSTEM, MODIFICATION DEVICE, METHOD, AND PROGRAM
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Pub. No.: WO/2019/049217 International Application No.: PCT/JP2017/032001
Publication Date: 14.03.2019 International Filing Date: 05.09.2017
IPC:
G06F 21/14 (2013.01) ,G06F 21/55 (2013.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
21
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
10
Protecting distributed programs or content, e.g. vending or licensing of copyrighted material
12
Protecting executable software
14
against software analysis or reverse engineering, e.g. by obfuscation
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
21
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
50
Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
55
Detecting local intrusion or implementing counter-measures
Applicants:
日本電気株式会社 NEC CORPORATION [JP/JP]; 東京都港区芝五丁目7番1号 7-1, Shiba 5-chome, Minato-ku, Tokyo 1088001, JP
Inventors:
寺西 勇 TERANISHI, Isamu; JP
Agent:
加藤 朝道 KATO, Asamichi; JP
Priority Data:
Title (EN) SYSTEM, MODIFICATION DEVICE, METHOD, AND PROGRAM
(FR) SYSTÈME, DISPOSITIF DE MODIFICATION, PROCÉDÉ ET PROGRAMME
(JA) システム、改変装置、方法及びプログラム
Abstract:
(EN) Provided is a system that contributes to robust prevention of data leaks. This system includes a modification device and an execution device. The modification device modifies a program including a conditional branch such that, after first processing corresponding to processing of the conditional branch is executed, it is determined on the basis of a conditional expression in the conditional branch whether or not the result of the first processing is selected to be reflected in a variable used in the program as the processing result of the execution processing. The execution device executes the modified program in an execution environment that is protected by hardware.
(FR) L'invention concerne un système qui contribue à la prévention robuste des fuites de données. Le système comprend un dispositif de modification et un dispositif d'exécution. Le dispositif de modification modifie un programme contenant une branche conditionnelle de telle sorte que, après l'exécution d'un premier traitement correspondant au traitement de la branche conditionnelle, il est déterminé sur la base d'une expression conditionnelle dans la branche conditionnelle si le résultat du premier traitement est sélectionné ou non pour être reflété dans une variable utilisée dans le programme en tant que résultat du traitement d'exécution. Le dispositif d'exécution exécute le programme modifié dans un environnement d'exécution qui est protégé par du matériel.
(JA) データの漏洩を強固に防止することに寄与するシステムを提供する。システムは、改変装置と、実行装置と、を含む。改変装置は、条件分岐文を含むプログラムを、条件分岐文の実行処理に相当する第1の処理が実行された後に、条件分岐文の条件式に基づいて第1の処理の結果を実行処理の処理結果としてプログラムで使用される変数に反映するか否かが決定されるように改変する。実行装置は、改変後のプログラムを、ハードウェア的に防御された実行環境にて実行する。
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Designated States: AE, AG, AL, AM, 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, JO, JP, KE, KG, KH, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)