WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2012101913) SIGNATURE PROCESSING SYSTEM, KEY GENERATION DEVICE, SIGNATURE DEVICE, VERIFICATION DEVICE, SIGNATURE PROCESSING METHOD AND SIGNATURE PROCESSING PROGRAM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/101913    International Application No.:    PCT/JP2011/078463
Publication Date: 02.08.2012 International Filing Date: 08.12.2011
IPC:
H04L 9/32 (2006.01), G09C 1/00 (2006.01)
Applicants: Mitsubishi Electric Corporation [JP/JP]; 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310 (JP) (For All Designated States Except US).
NIPPON TELEGRAPH AND TELEPHONE CORPORATION [JP/JP]; 3-1, Otemachi 2-chome, Chiyoda-ku, Tokyo 1008116 (JP) (For All Designated States Except US).
TAKASHIMA, Katsuyuki [--/JP]; (JP) (For US Only).
OKAMOTO, Tatsuaki [--/JP]; (JP) (For US Only)
Inventors: TAKASHIMA, Katsuyuki; (JP).
OKAMOTO, Tatsuaki; (JP)
Agent: MIZOI, Shoji; MIZOI INTERNATIONAL PATENT FIRM, NTA Ofuna Building 3rd floor, 17-10, Ofuna 2-chome, Kamakura-shi, Kanagawa 2470056 (JP)
Priority Data:
2011-013281 25.01.2011 JP
Title (EN) SIGNATURE PROCESSING SYSTEM, KEY GENERATION DEVICE, SIGNATURE DEVICE, VERIFICATION DEVICE, SIGNATURE PROCESSING METHOD AND SIGNATURE PROCESSING PROGRAM
(FR) SYSTÈME DE TRAITEMENT DE SIGNATURE, DISPOSITIF DE GÉNÉRATION DE CLÉ, DISPOSITIF DE SIGNATURE, DISPOSITIF DE VÉRIFICATION, PROCÉDÉ ET PROGRAMME DE TRAITEMENT DE SIGNATURE
(JA) 署名処理システム、鍵生成装置、署名装置、検証装置、署名処理方法及び署名処理プログラム
Abstract: front page image
(EN)The purpose of the present invention is to provide an attribute-based signature scheme supporting non-monotone predicates affording a high degree of freedom in the design. The access structure is configured by applying the inner product of an attribute vector to a non-monotone span program. The access structure affords a degree of freedom in the design of the span program, as well as the attribute vector, and affords a large degree of freedom in the design of access control. Further, the attribute-based signature scheme supporting non-monotone predicates is realized by employing the concept of secret distribution in the access structure.
(FR)La présente invention consiste à fournir un schéma de signature à base d'attributs prenant en charge des prédicats non monotones atteignant un haut niveau de liberté de conception. La structure d'accès est conçue par l'application du produit interne d'un vecteur d'attribut à un programme span non monotone. La structure d'accès permet d'obtenir un niveau de liberté de conception du programme span, ainsi que du vecteur d'attribut, et permet un grand degré de liberté dans la conception du contrôle d'accès. De plus, le schéma de signature à base d'attributs qui prend en charge des prédicats non monotones est réalisé par l'emploi du concept de distribution secrète dans la structure d'accès.
(JA) 設計の自由度の高いノンモノトーン述語をサポートした属性ベース署名方式を提供することを目的とする。ノンモノトーンスパンプログラムに属性ベクトルの内積を適用することによりアクセスストラクチャを構成した。このアクセスストラクチャは、スパンプログラムの設計と、属性ベクトルの設計とに自由度があり、アクセス制御の設計に大きな自由度を有する。そして、このアクセスストラクチャに対して秘密分散の概念を用いることで、ノンモノトーン述語をサポートした属性ベース署名方式を実現した。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)