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1. (WO2010046104) AN ENCRYPTION METHOD
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/046104    International Application No.:    PCT/EP2009/007555
Publication Date: 29.04.2010 International Filing Date: 22.10.2009
IPC:
H04L 9/20 (2006.01), G06F 21/60 (2013.01), G06F 21/64 (2013.01), G06K 19/06 (2006.01)
Applicants: UNIVERSITY OF ULSTER [GB/GB]; Cromore Road Coleraine County Londonderry BT52 1SA (GB) (For All Designated States Except US).
CHEDDAD, Abbas [DZ/GB]; (GB) (For US Only).
CONDELL, Joan [GB/GB]; (GB) (For US Only).
CURRAN, Kevin [IE/GB]; (GB) (For US Only).
MCKEVITT, Paul [IE/GB]; (GB) (For US Only)
Inventors: CHEDDAD, Abbas; (GB).
CONDELL, Joan; (GB).
CURRAN, Kevin; (GB).
MCKEVITT, Paul; (GB)
Agent: BROPHY, David; FRKelly 27 Clyde Road Ballsbridge Dublin 4 (IE)
Priority Data:
0819443.3 23.10.2008 GB
0819976.2 31.10.2008 GB
Title (EN) AN ENCRYPTION METHOD
(FR) PROCÉDÉ DE CHIFFREMENT
Abstract: front page image
(EN)There is described a method of encrypting a set of 2D input data, preferably image data. The method comprises obtaining the hash value of a password and re-sizing the hash value to fir the size of the 2D input data. The re-sized data is transformed using an irreversible transform, and the output of the transform is then used to encode the 2D data.
(FR)L'invention concerne un procédé qui permet de chiffrer un ensemble de données d'entrée 2D, de préférence des données d'image. Ce procédé consiste à obtenir la valeur de hachage d'un mot de passe et à redimensionner la valeur de hachage pour l'adapter à la taille des données d'entrée 2D. Les données redimensionnées sont transformées au moyen d'une transformée irréversible, et la sortie de la transformée est ensuite utilisée pour coder les données 2D.
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 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)