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1. (EP2756628) METHOD AND DEVICE FOR SECURELY SHARING IMAGES ACROSS UNTRUSTED CHANNELS

Office : European Patent Office
Application Number: 11872400 Application Date: 12.09.2011
Publication Number: 2756628 Publication Date: 23.07.2014
Publication Kind : B1
Designated States: AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
Prior PCT appl.: Application Number:US2011051261 ; Publication Number: Click to see the data
IPC:
H04L 9/32
G06F 21/32
G06F 21/62
G06K 9/78
H04L 9/08
H04L 29/06
H04N 21/4415
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
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
21
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
30
Authentication, i.e. establishing the identity or authorisation of security principals
31
User authentication
32
using biometric data, e.g. fingerprints, iris scans or voiceprints
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
60
Protecting data
62
Protecting access to data via a platform, e.g. using keys or access control rules
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9
Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
78
Combination of image acquisition and recognition functions
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
06
the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems
08
Key distribution
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
43
Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
441
Acquiring end-user identification
4415
using biometric characteristics of the user, e.g. by voice recognition or fingerprint scanning
CPC:
H04L 9/3231
G06F 21/32
G06F 21/6209
G06F 2221/2109
H04L 9/0825
H04L 63/045
H04L 63/0861
Applicants: INTEL CORP
Inventors: DEWAN PRASHANT
DURHAM DAVID M
KANG XIAOZHU
GREWAL KARANVIR S
Priority Data: 2011051261 12.09.2011 US
Title: (DE) VERFAHREN UND VORRICHTUNG ZUR SICHEREN GEMEINSAMEN NUTZUNG VON BILDERN ÜBER UNSICHERE KANÄLE
(EN) METHOD AND DEVICE FOR SECURELY SHARING IMAGES ACROSS UNTRUSTED CHANNELS
(FR) PROCÉDÉ ET DISPOSITIF POUR PARTAGER DES IMAGES EN TOUTE SÉCURITÉ SUR DES VOIES NON SÉCURISÉES
Abstract: front page image
(EN) A method and device for securely sharing images across untrusted channels includes downloading an encrypted image from a remote server to a computing device. The encrypted image may be encrypted at the time of uploading by another user. The current user of the computing device is authenticated using a facial recognition procedure. If the current user is authenticated and is determined to be authorized to view the decrypted image, the encrypted image is decrypted and displayed to the user. If the user becomes unauthenticated (e.g., the user leaves the computing device or another user replaces the current user), the encrypted image is displayed in place of the encrypted image such that the decrypted image is displayed only for authorized persons physically present at the computing device.
(FR) La présente invention se rapporte à un procédé et à un dispositif adaptés pour partager des images en toute sécurité sur des voies non sécurisées. Le procédé selon l'invention consiste à télécharger une image chiffrée sur un dispositif informatique à partir d'un serveur distant. L'image chiffrée peut être chiffrée au moment où elle est déposée sur le serveur par un autre utilisateur. L'utilisateur actuel du dispositif informatique est authentifié au moyen d'une procédure de reconnaissance sociale. Si l'utilisateur actuel est authentifié et qu'il est déterminé qu'il est autorisé à voir l'image déchiffrée, l'image chiffrée est déchiffrée et affichée à l'intention de l'utilisateur. Si l'utilisateur cesse d'être authentifié (comme, par exemple, si l'utilisateur cesse d'utiliser le dispositif informatique ou qu'un autre utilisateur remplace l'utilisateur actuel), l'image chiffrée s'affiche à la place de l'image chiffrée, si bien que l'image déchiffrée s'affiche uniquement à l'intention de personnes autorisées qui sont physiquement présentes devant le dispositif informatique.
Also published as:
US20130067228CN103765811WO/2013/039476