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Machine translation
1. (WO2013112012) METHOD FOR OPERATING IMAGE PASSWORD
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/112012    International Application No.:    PCT/KR2013/000646
Publication Date: 01.08.2013 International Filing Date: 25.01.2013
IPC:
G06F 21/00 (2013.01), G06F 3/02 (2006.01)
Applicants: ROWEM INC [KR/KR]; 201,Digtal-Ro 29 Gil, Guro-Gu Seoul 152-779 (KR) (For All Designated States Except US).
Hwang, Jay-Yeob [KR/KR]; (KR) (US only).
Yang, Giho [KR/KR]; (KR) (US only)
Inventors: Hwang, Jay-Yeob; (KR).
Yang, Giho; (KR)
Priority Data:
10-2012-0007131 25.01.2012 KR
Title (EN) METHOD FOR OPERATING IMAGE PASSWORD
(FR) PROCÉDÉ DE MISE EN ŒUVRE D'UN MOT DE PASSE IMAGE
(KO) 이미지 패스워드 운용 방법
Abstract: front page image
(EN)The present invention relates to an image password. Image passwords which have been prevented from unauthorized viewing have the attribute of becoming weak in terms of the probability of being able to arbitrarily bypass them. Even when such is not the case, an image presented on one screen is inevitably limited. Also, the number of images to be selected in a single authentication is inevitably limited, resulting in becoming weak in terms of probability. In the present invention, in order to raise the security of image passwords which have been prevented from unauthorized viewing, the present invention allows the bypassing probability to be very low and difficult to do when an arbitrary input is attempted. The present invention uses a password which is difficult for an attacker to know, even when unauthorized viewing has occurred as cited in the background of the invention. The number of continuous failures in normal mode, which is a condition by which the normal mode is changed to defense mode, is predetermined by the user or preset by default. When normal mode is changed to defense mode at the time when the number of failures exceeds the number of continuous failures, defense mode is maintained until the number of continuous successes becomes two. The present invention has the effect of allowing the image passwords which have been prevented from unauthorized viewing to be very strong in terms of probability.
(FR)La présente invention concerne un mot de passe image. Les mots de passe images qui sont protégés contre une visualisation non autorisée ont la caractéristique de devenir faibles en termes de probabilité de pouvoir être contournés arbitrairement. Même si tel n'est pas le cas, une image présentée sur un écran est inévitablement limitée. Par ailleurs, le nombre d'images à sélectionner dans une seule authentification est inévitablement limité, ce qui se traduit par un affaiblissement en termes de probabilité. Selon la présente invention, pour augmenter la sécurité de mots de passe images protégés contre une visualisation non autorisée, la probabilité de contournement est maintenue à un niveau très faible et est difficile à effectuer lors d'une tentative d'entrée arbitraire. La présente invention utilise un mot de passe difficile à connaître pour l'auteur d'une attaque, même lorsqu'une visualisation non autorisée s'est produite. Le nombre d'échecs successifs en mode normal, qui est une condition pour passer du mode normal au mode de défense, est prédéterminé par l'utilisateur ou paramétré par défaut. Lorsque le mode normal est remplacé par le mode de défense quand le nombre d'échecs est supérieur au nombre d'échecs successifs, le mode de défense est maintenu jusqu'à ce que le nombre de réussites successives soient égal à deux. La présente invention permet de rendre les mots de passe images qui ont été protégés contre une visualisation non autorisée particulièrement forts en termes de probabilité.
(KO)본 발명은 이미지 패스워드에 관한 것이다. 훔쳐보기가 방지된 이미지 패스워드들은 일반적으로 그 무작위통과확률면에서 약하게 되는 속성이 있고, 그렇지 않다 하더라도 한 화면에서 제시할 수 있는 이미지는 한정될 수밖에 없고 또한, 한 번의 인증에 선택하게 할 이미지의 수도 한정적일 수밖에 없어 어쨌든 확률면에서 약하게 되는 약점이 있다. 본 발명은 이러한 훔쳐보기가 방지된 이미지 패스워드들의 안전도를 높이기 위하여 무작위로 입력을 시도했을 때 그 통과할 확률을 훨씬 더 어렵도록 하고자 한다. 본 발명에 적용되는 패스워드는 발명의 배경이 되는 기술에 인용되어 있는 것들과 같이 훔쳐보기를 해도 공격자가 그것을 알기 어려운 방식인 패스워드를 사용하고, 정상모드에서 방어모드로 전환되는 조건인 정상모드에서의 연속실패회수는 사용자가 미리 정하거나 그 전부터 미리 디폴트로 설정되어 있고, 상기 연속실패회수를 초과하는 때부터 방어모드로 전환되면, 연속성공회수가 2회가 될 때까지 방어모드가 계속 유지되도록 한다. 본 발명을 이용하면 훔쳐보기가 방지된 이미지 패스워드들도 확률면에서 대단히 강하게 되는 효과가 있다.
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, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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: Korean (KO)
Filing Language: Korean (KO)