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PATENTSCOPE
1. (WO2011105972) SECURE COMMUNICATION SYSTEMS BASED UPON TWO-FOLD MASKING OF DIFFERENT CHAOTIC ATTRACTORS, INCLUDING MODIFIED CHAOTIC ATTRACTORS, USING STATIC-DYNAMIC SECRET KEYS
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Pub. No.:
WO/2011/105972
International Application No.:
PCT/TH2010/000006
Publication Date:
01.09.2011
International Filing Date:
24.02.2010
IPC:
H04L 9/28
(2006.01),
H04L 9/14
(2006.01)
H
ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
28
using particular encryption algorithm
H
ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
14
using a plurality of keys or algorithms
Applicants:
THE OFFICE OF NATIONAL TELECOMMUNICATIONS COMMISSION
[TH/TH]; 87 Soi Sailom Phaholyothin 8 Road Bangkok 10400 (TH)
(For All Designated States Except US)
.
SRISUCHINWONG, Banlue
[TH/TH]; (TH)
(For US Only)
.
MUNMUANGSAEN, Buncha
[TH/TH]; (TH)
(For US Only)
Inventors:
SRISUCHINWONG, Banlue
; (TH).
MUNMUANGSAEN, Buncha
; (TH)
Agent:
LERTCHAIPETCH, Rossukon
; Axis Associates International Co., Ltd. 253 Asoke, 15th Floor, Sukhumvit 21 Road Klongtoey Nua Wattana Bangkok 10110 (TH)
Priority Data:
Title
(EN)
SECURE COMMUNICATION SYSTEMS BASED UPON TWO-FOLD MASKING OF DIFFERENT CHAOTIC ATTRACTORS, INCLUDING MODIFIED CHAOTIC ATTRACTORS, USING STATIC-DYNAMIC SECRET KEYS
(FR)
SYSTÈMES DE COMMUNICATION SÉCURISÉS UTILISANT UN DOUBLE MASQUAGE D'ATTRACTEURS CHAOTIQUES DIFFÉRENTS, NOTAMMENT D'ATTRACTEURS CHAOTIQUES MODIFIÉS, AU MOYEN DE CLÉS SECRÈTES STATIQUES-DYNAMIQUES
Abstract:
(EN)
A secure communication system includes a transmitter having a first and a second drive system corresponding to a five-term and a Lorenz-like chaotic attractor, respectively. A two- fold masking unit combines a corresponding first and second chaotic masking signal with a message signal, and transmits a two-fold chaotically masked message signal over a public channel. A dynamic secret key based upon the time series of the first chaotic masking signal is transmitted over a secret channel. A receiver includes a first response system and a second response system as synchronizable counterparts to the first and the second drive systems. The receiver is communicatively coupled to the public and secret channels, and generates and subtracts a version of the dynamic secret key from the received two-fold chaotically masked message signal. The receiver further generates a version of the second chaotic masking signal, and performs a subtraction operation to recover a message signal. A set of static secret keys at the transmitter and the receiver include a set of specified parameters and initial conditions of each of the chaotic attractors.
(FR)
L'invention concerne un système de communication sécurisé, comportant un émetteur possédant des premier et deuxième systèmes pilotes correspondant respectivement à un attracteur chaotique à cinq termes et à un attracteur chaotique de Lorenz. Un module de double masquage combine des premier et deuxième signaux de masquage chaotique correspondants à un signal message, et transmet un signal message à double masquage chaotique sur un canal public. Une clé secrète dynamique utilisant la série chronologique du premier signal de masquage chaotique est transmise sur un canal secret. Un récepteur comporte un premier système de réponse et un deuxième système de réponse constituant des homologues synchronisables des premier et deuxième systèmes pilotes. Le récepteur est relié aux canaux public et secret pour permettre les communications, et génère une version de la clé secrète dynamique qu'il soustrait du signal message à double masquage chaotique reçu. Le récepteur génère en outre une version du deuxième signal de masquage chaotique, et effectue une soustraction aux fins de récupérer un signal message. Un ensemble de clés secrètes statiques au niveau de l'émetteur et du récepteur comprend un ensemble de paramètres déterminés et de conditions initiales de chacun des attracteurs chaotiques.
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, 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, 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 Org. (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (EAPO) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language:
English (EN)
Filing Language:
English (EN)