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1. (WO2017036158) METHOD AND DEVICE FOR ENCRYPTION AND DECRYPTION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/036158 International Application No.: PCT/CN2016/080921
Publication Date: 09.03.2017 International Filing Date: 03.05.2016
IPC:
H04L 29/06 (2006.01) ,H04N 21/4627 (2011.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29
Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02
Communication control; Communication processing
06
characterised by a protocol
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
21
Selective content distribution, e.g. interactive television, VOD [Video On Demand]
40
Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB [set-top-box]; Operations thereof
45
Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies or resolving scheduling conflicts
462
Content or additional data management e.g. creating a master electronic program guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
4627
Rights management
Applicants:
中兴通讯股份有限公司 ZTE CORPORATION [CN/CN]; 中国广东省深圳市 南山区高新技术产业园科技南路中兴通讯大厦 ZTE Plaza, Keji Road South, Hi-Tech Industrial Park Nanshan Shenzhen, Guangdong 518057, CN
Inventors:
冯磊 FENG, Lei; CN
Agent:
北京安信方达知识产权代理有限公司 AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE; 中国北京市 海淀区学清路8号B座1601A Suite B 1601A, 8 Xue Qing Rd.Haidian Beijing 100192, CN
Priority Data:
201510555464.301.09.2015CN
Title (EN) METHOD AND DEVICE FOR ENCRYPTION AND DECRYPTION
(FR) PROCÉDÉ ET DISPOSITIF DE CHIFFREMENT ET DE DÉCHIFFREMENT
(ZH) 一种加解密方法及装置
Abstract:
(EN) A method for encryption and decryption comprises: switching an encryption table and a decryption table which are being used by a terminal to a target encryption table and a target decryption table according to a switching instruction; performing encryption and decryption by using the switched target encryption table and target decryption table.
(FR) L’invention concerne un procédé de chiffrement et de déchiffrement comprenant les étapes consistant à : commuter une table de chiffrement et une table de déchiffrement qui sont utilisées par un terminal à une table de chiffrement cible et une table de déchiffrement cible en réponse à une instruction de commutation ; exécuter le chiffrement et le déchiffrement au moyen de la table de chiffrement cible et la table de déchiffrement cible commutées.
(ZH) 一种加解密方法包括:根据切换指令,将所述终端正在使用的加密表和解密表切换为目标加密表和目标解密表;利用切换后的目标加密表和目标解密表进行加解密。
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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, 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, SA, 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, ST, 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)