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1. (WO2010075626) BANDWIDTH EFFICIENT METHOD AND SYSTEM FOR OBSCURING THE EXISTENCE OF ENCRYPTION IN A COMMUNICATIONS CHANNEL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/075626 International Application No.: PCT/CA2009/001763
Publication Date: 08.07.2010 International Filing Date: 03.12.2009
IPC:
H04L 9/28 (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
Applicants:
NORTEL NETWORKS LIMITED [CA/CA]; 2351 Boulevard Alfred-Nobel St. Laurent , Québec H4S 2A9, CA (AllExceptUS)
LEECH, Marcus D. [CA/CA]; CA (UsOnly)
Inventors:
LEECH, Marcus D.; CA
Agent:
MEASURES, Jeffrey M.; Borden Ladner Gervais LLP World Exchange Plaza 100 Queen Street, Suite 1100 Ottawa , Ontario K1P 1J9, CA
Priority Data:
12/345,18629.12.2008US
Title (EN) BANDWIDTH EFFICIENT METHOD AND SYSTEM FOR OBSCURING THE EXISTENCE OF ENCRYPTION IN A COMMUNICATIONS CHANNEL
(FR) PROCEDE ET SYSTEME A LARGEUR DE BANDE EFFICACE POUR MASQUER L'EXISTENCE D'UN CHIFFREMENT DANS UN CANAL DE COMMUNICATIONS
Abstract:
(EN) A system, method, and network interface obscures the existence of data encryption in a communication network is provided. A set of characters is generated by using a set of encryption keys as an input to a pseudo-random function. Each character corresponds to an index value. The encrypted data is divided into a plurality of parts. Each part is sectioned into a plurality of groups. Each group of the plurality of groups is encoded by mapping the group to a character in the set of characters according to its corresponding index value. The mapped characters are transmitted through the communication network.
(FR) L'invention concerne un système, un procédé, et une interface réseau qui masque l'existence de chiffrement de données dans un réseau de communications. On crée un ensemble de caractères en utilisant un ensemble de clés de chiffrement comme entrée d'une fonction pseudo-aléatoire. Chaque caractère correspond à une valeur indice. Les données chiffrées sont divisées en plusieurs parties et chaque partie en plusieurs groupes. Chacun de ces groupes est codé par mappage du groupe avec un caractère de l'ensemble des caractères en fonction de sa valeur indice correspondante. Les caractères mappés sont transmis par le biais du réseau de communications.
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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, 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, 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 (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 (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2382733JP2012514353CN102282798RU2011122728CA2745516RU0002497289
CN104052594JP2014209263KR1020110102892BRPI0923460IN2361/KOLNP/2011