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1. (WO2017095671) ADDING PRIVACY TO STANDARD CREDENTIALS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/095671 International Application No.: PCT/US2016/062982
Publication Date: 08.06.2017 International Filing Date: 21.11.2016
IPC:
H04L 9/32 (2006.01) ,G09C 1/00 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
32
including means for verifying the identity or authority of a user of the system
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
C
CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
1
Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
Applicants:
MICROSOFT TECHNOLOGY LICENSING, LLC [US/US]; Attn: Patent Group Docketing (Bldg. 8/1000) One Microsoft Way Redmond, Washington 98052-6399, US
Inventors:
CHASE, Melissa E.; US
MOHASSEL, Payman; US
GANESH, Chaya; US
Agent:
MINHAS, Sandip; US
CHEN, Wei-Chen Nicholas; US
DRAKOS, Katherine J.; US
KADOURA, Judy M.; US
HOLMES, Danielle J.; US
SWAIN, Cassandra T.; US
WONG, Thomas S.; US
CHOI, Daniel; US
Priority Data:
14/959,72004.12.2015US
Title (EN) ADDING PRIVACY TO STANDARD CREDENTIALS
(FR) AJOUT DE CONFIDENTIALITÉ À DES JUSTIFICATIFS D'IDENTITÉ STANDARD
Abstract:
(EN) Standardized digital signature schemes (e.g., Rivest-Shamir-Adleman (RSA), Digital Signature Algorithm (DSA), Elliptical Curve Digital Signature Algorithm (EC-DSA), etc.) may be employed to prove authenticity of a message containing credentials. Proving possession of valid credentials may be performed using a combination of garbled circuits with message authentication codes (MACs) and proof of knowledge protocols (e.g., Sigma protocol, Schnorr protocol, etc.). Such techniques may allow proving entities to prove possession of valid credentials using standardized signature schemes without revealing those credentials directly to a verifying entity.
(FR) Des schémas de signature numérique standardisée (par exemple, Rivest-Shamir-Adleman (RSA), un algorithme de signature numérique (DSA), un algorithme de signature numérique à courbe elliptique (EC-DSA), etc.) peuvent être utilisés pour prouver l'authenticité d'un message contenant des justificatifs. La preuve de la possession de justificatifs d'identité valides peut être réalisée à l'aide d'une combinaison de circuits tronqués avec des codes d'authentification de message (MAC) et de protocoles de preuve de connaissance (par exemple., protocole Sigma, protocole Schnorr, etc.). De telles techniques peuvent permettre à des entités de preuve de prouver la possession de justificatifs d'identité valides à l'aide de schémas de signature standardisés sans révéler directement ces justificatifs d'identité à une entité de vérification.
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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, DJ, 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, KW, 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 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
CN108370317EP3384628