INFORMATION RECORDING MEDIUM ACTUATOR Russian patent published in 2009 - IPC H04L9/08 

FIELD: information technology.

SUBSTANCE: present invention relates to information processing. An initial number, necessary for generating a key block for use in the process of decoding encrypted content, is stored in form of information, encrypted using another key block Kb1. In addition to this in the configuration, in which the initial number should be transferred from one device to the other, the initial number and the device record key to the other, the initial number and the device record key are transferred from one device to the other in form of information, encrypted using a session key.

EFFECT: higher level of information security.

17 cl, 23 dwg