Data encryption system and method

摘要

A sender apparatus encrypts data using a key. The apparatus then calculates various parameters based on the key and a shared secret between the sender apparatus and a recipient apparatus that is remote from the sender apparatus. The calculated parameters are transmitted to the recipient apparatus, which uses such parameters to calculate the key based on the shared secret. The recipient apparatus then decrypts the data using the calculated key, which does not need to be transmitted from the sender apparatus to the recipient apparatus.