Patent ID: 8484459
Filing Date: 2013-07-09
Classification: G06F,H04L

Abstract:
1. A method for secure transfer of information through a centralized system, the method taking place in said centralized system and the method comprising: maintaining in said centralized system user account information, a user account of a certain user comprising at least a user id and associated public and private keys, the private key being retrievable by utilizing a password of said certain user, via a communication link, receiving identification information relating to a recipient, retrieving the public key of said recipient from said user account information by utilizing said identification information, receiving information content addressed to said recipient, storing in said centralized system said information content for said recipient in encrypted form, wherein said information content is symmetrically encrypted with a random key, and the random key is asymmetrically encrypted with said retrieved public key, storing in the centralized system the random key in encrypted form, and notifying said recipient of said encrypted information content stored in said centralized system, wherein only part of the private key is stored in the user account information, and a combination of the stored part of the private key and the password forming a full private key.