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1. (WO2011136614) ENCRYPTION SYSTEM USING DISCRETE CHAOS FUNCTION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/136614    International Application No.:    PCT/KR2011/003219
Publication Date: 03.11.2011 International Filing Date: 29.04.2011
IPC:
G06F 9/06 (2006.01), G06F 17/10 (2006.01)
Applicants: DONGGUK UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION [KR/KR]; 26 Pil-dong 3-ga, Jung-gu Seoul 100-715 (KR) (For All Designated States Except US).
LIM, Dae Woon [KR/KR]; (KR) (For US Only).
YANG, Gi Joo [KR/KR]; (KR) (For US Only).
LIM, Taehyung [KR/KR]; (KR) (For US Only).
KUM, Eun Ji [KR/KR]; (KR) (For US Only)
Inventors: LIM, Dae Woon; (KR).
YANG, Gi Joo; (KR).
LIM, Taehyung; (KR).
KUM, Eun Ji; (KR)
Agent: CHUNG HYUN PATENT & LAW FIRM; Hanmaum Bldg. 4F. 4-4 Yangjae-dong, Seocho-gu Seoul 137-130 (KR)
Priority Data:
10-2010-0040126 29.04.2010 KR
Title (EN) ENCRYPTION SYSTEM USING DISCRETE CHAOS FUNCTION
(FR) SYSTÈME DE CHIFFREMENT AU MOYEN D'UNE FONCTION CHAOTIQUE DISCRÈTE
(KO) 이산화된 카오스 함수를 이용한 암호 시스템
Abstract: front page image
(EN)The present relates to an encryption system comprising: an encryption round calculation unit for encrypting a plain text; and a substitution unit which is prepared at the encryption round calculation unit, is defined by a discrete chaos function using each of a plurality of key values as a parameter, and includes a plurality of S-boxes for performing a substitution calculation process for each of the words of the plain text which are divided by a plurality of numbers of key values. As the discrete chaos function becomes a reference of an S-box design and an encryption calculation operation is performed by the plurality of S-boxes, the present invention can be applied to a lightweight system having a small computational complexity.
(FR)La présente invention concerne un système de chiffrement comprenant : une unité de calcul de cycle de chiffrement pour chiffrer un texte en clair; et une unité de substitution qui se trouve au niveau de l'unité de calcul de cycle de chiffrement, est définie par une fonction chaotique discrète au moyen de chacune des valeurs de clé d'une pluralité, en tant que paramètre, et comprend une pluralité de boîtes S pour exécuter un processus de calcul de substitution pour chacun des mots du texte en clair qui sont divisés par une pluralité de nombres de valeurs de clé. Comme la fonction chaotique discrète devient une référence pour une conception de boîte S et une opération de calcul de chiffrement est réalisée par la pluralité de boîtes S, l'invention peut s'appliquer à un système léger ayant une complexité de calcul faible.
(KO)본 발명은 암호시스템에 관한 것으로, 평문을 암호화하기 위한 암호화 라운드 연산부; 및 상기 암호화 라운드 연산부에 마련되고, 복수의 키 값 각각을 파라미터로 하는 이산화된 카오스 함수에 의해 정의되며, 상기 복수의 키 값의 개수로 나누어지는 상기 평문의 워드들 각각에 대해 대체연산을 수행하기 위한 복수의 에스박스를 구비한 대체부를 포함하여, 이산화된 카오스 함수가 에스박스 디자인에 대한 기준으로 되고, 복수의 에스박스에 의해 암호화 연산이 수행되어 연산량이 적은 경량의 시스템에도 적용될 수 있는 효과가 있다.
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, JP, KE, KG, KM, KN, KP, 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, RO, RS, RU, 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, 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: Korean (KO)
Filing Language: Korean (KO)