METHOD OF TRANSMITTING AND RECEIVING MULTIMEDIA CONTENT Russian patent published in 2015 - IPC H04L9/08 

FIELD: information technology.

SUBSTANCE: method includes steps of: a transmitter using an operating key and an encryption algorithm executable code in a virtual mother card to encrypt a control word CWt to obtain a cryptogram $$C{W}_t^{*},$$ using a syntax constructor executable code in the virtual mother card to generate an ECM (Entitlement Control Message) that incorporates the cryptogram $$C{W}_t^{*},$$ and transmitting said ECM to a terminal; the terminal receiving the ECM, determining the location of the cryptogram $$C{W}_t^{*}$$ in the received ECM using syntax analyser executable code and then decrypting the cryptogram $$C{W}_t^{*}$$ using the operating key and the encryption algorithm.

EFFECT: safer data transmission.

14 cl, 6 dwg