METHOD FOR INFORMATION RETRIEVAL IN AN ENCRYPTED CORPUS STORED ON A SERVER

摘要

The present invention relates to a method of searching information in an encrypted corpus stored on a server, from a digital query computed on a client equipment, containing a sequence of terms, comprising the following steps: encryption of said request ( 20) on client computer equipment (1) and transmission to a database management server (1) (3) - homomorphic computation on the server of the encrypted response (41) to the encrypted request (40) recorded on the server (2) characterized in that it comprises an additional queuing step performed on the client equipment (1), aggregating said data identifier contained in said encrypted response (50) and in the df_A index (13) recorded on the client equipment (1) the presentation of the result in an ordered form of the documents in application of the processing of the previous step. The invention also relates to a process for preparing a debatable base and a method for searching information in an encrypted corpus.