PRIVATE AND PUBLIC KEY EXCHANGE METHOD PREVENTING MAN-IN-THE-MIDDLE ATTACK WITHOUT ELECTRONIC CERTIFICATE AND DIGITAL SIGNATURE

摘要

An apparatus, process, and system, that enables secure information and communication across channels based on a perfect key-exchange method. The secure channel between two users enables each to use the public key of the other user—to derive a secret key specific to both users. Traditional (but yet widely used) key-exchange methods are not perfect-secure; the public key encryption makes these methods to be broken under many kinds of attacks. Unlike these methods, the apparatus, process, and system of the present invention is not based on the computational assumptions like: Integer Factorization and Discrete Logarithm Problem. The apparatus, process, and system of the present invention inhibits and/or prevents the man-in-the-middle attack, which is a problem that has not been solved to this day.