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1. (WO2013114166) KNOWN PLAINTEXT ATTACK PROTECTION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/114166 International Application No.: PCT/IB2012/057428
Publication Date: 08.08.2013 International Filing Date: 18.12.2012
IPC:
H04L 9/00 (2006.01) ,G06F 21/55 (2013.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
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: GOLD, Martin[GB/GB]; GB
MILLAR, Keith[GB/GB]; GB
CAIN, Harel[IL/IL]; IL
WACHTFOGEL, David[IL/IL]; IL
DEVIR, Michal[IL/IL]; IL
BERMAN, Max[IL/IL]; IL
WALZER, Brett[IL/IL]; IL
NDS LIMITED[GB/GB]; One London Road Staines Middlesex TW18 4EX, GB (AllExceptUS)
Inventors: GOLD, Martin; GB
MILLAR, Keith; GB
CAIN, Harel; IL
WACHTFOGEL, David; IL
DEVIR, Michal; IL
BERMAN, Max; IL
WALZER, Brett; IL
Agent: KATZ, Samuel M.; NDS Legal (Patents) NDS Limited One London Road Staines Middlesex TW18 4EX, GB
Priority Data:
61/632,87701.02.2012US
Title (EN) KNOWN PLAINTEXT ATTACK PROTECTION
(FR) PROTECTION CONTRE LES ATTAQUES DE TEXTE EN CLAIR CONNU
Abstract:
(EN) A Headend system including a encoder to encode input data yielding a plurality of data packets, each of the packets having a header and a payload, a post encoding processor to identify ones of the data packets having a payload with a suspected known plaintext, and modify at least some of the identified packets, and an encryption processor to encrypt at least some of the data packets yielding encrypted data packets. Related apparatus and methods are also described.
(FR) L'invention concerne un système de tête de bus comprenant un codeur pour coder des données d'entrée rapportant une pluralité de paquets de données, chacun des paquets ayant un en-tête et des données utiles, un post-processeur de codage pour identifier des paquets de données parmi les paquets de données ayant des données utiles avec un texte en clair connu soupçonné, et modifier au moins certains des paquets identifiés, et un processeur de cryptage pour crypter au moins certains des paquets de données rapportant des paquets de données cryptés. L'invention concerne également un appareil et des procédés associés.
front page image
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, 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, PA, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, 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, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)