Encrypted audio streams transceiving portable device and associated method

Abstract

An encrypted multimedia streams transceiving method between at least a first and a second user, said method being characterized in that it comprises the use of a device (100) for transceiving multimedia streams connected to a respective electronic computer (200) by both the first and said second user; said method comprising a first step of preventive activation of a free-to-air communication session between said first and said second user through a software for making multimedia communications (500) within which said device (100) operates in a first free-to-air transmission configuration, and a second step of creation of an encrypted communication, within which said device (100) operates in a second encrypted transceiving configuration by means of an encryption stage or motor (120); said method comprising a step wherein said device (100) causes the opening of a session for the transfer of encrypted data between the electronic computers (200) of said first user and said second user different from the free-to-air communication session used by said software for making calls, and wherein an at least audio data stream transceived between the two users during their communication is selectively switched between said free- to-air communication session and said encrypted data transfer session on the basis of a predefined criterion; said method comprising a step wherein the device (100) continues to contemporarily use the multimedia channel of the pre-existing communication software (500) while it protects the communication between the two users switched on the encrypted channel.