title: An end to end secure CBIR over encrypted medical database.
abstract: In this paper, we propose a new secure content based image retrieval (SCBIR) system adapted to the cloud framework. This solution allows a physician to retrieve images of similar content within an outsourced and encrypted image database, without decrypting them. Contrarily to actual CBIR approaches in the encrypted domain, the originality of the proposed scheme stands on the fact that the features extracted from the encrypted images are themselves encrypted. This is achieved by means of homomorphic encryption and two non-colluding servers, we however both consider as honest but curious. In that way an end to end secure CBIR process is ensured. Experimental results carried out on a diabetic retinopathy database encrypted with the Paillier cryptosystem indicate that our SCBIR achieves retrieval performance as good as if images were processed in their non-encrypted form.
authors.forename: Reda
authors.initials: R
authors.lastname: Bellafqira
authors.forename: Gouenou
authors.initials: G
authors.lastname: Coatrieux
authors.forename: Dalel
authors.initials: D
authors.lastname: Bouslimi
authors.forename: Gwenole
authors.initials: G
authors.lastname: Quellec
mesh_terms: D000465:Algorithms; D000067917:Cloud Computing; D016494:Computer Security; D003201:Computers; D016208:Databases, Factual; D003930:Diabetic Retinopathy / Q000453:epidemiology* / Q000628:therapy*; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D057286:Electronic Health Records; D006801:Humans; D008490:Medical Informatics / Q000379:methods*; D015233:Models, Statistical; D016011:Normal Distribution; D011381:Programming Languages; D058067:Wavelet Analysis