METHOD FOR THE SECURE DEPOSITION OF DIGITAL DATA, ASSOCIATED METHOD FOR RECOVERING DIGITAL DATA, ASSOCIATED DEVICES FOR IMPLEMENTING METHODS, AND SYSTEM COMPRISING SAID DEVICES

摘要

The invention relates to a method for the secure deposition of data (DATA), according to which a depositor (A) encrypts the data (DATA) with a transfer key (RAND) and encrypts the transfer key with a key of a third party (B), then deposits the encrypted data and the encrypted transfer key on a storage support (D). The invention also relates to a method for recovering data (DATA), during which an addressee of the data recovers the content of the storage support, authenticates him/herself to the third party, and transmits the encrypted transfer key thereto. After having authenticated the addressee, the third party returns the decrypted transfer key. The addressee can then recover the data (DATA). The invention further relates to devices for implementing said methods.