METHOD AND SYSTEM FOR GENERATION OF IMPROVED STORAGE KEY IN MOBILE DEVICE WITHOUT PROTECTIVE ELEMENTS Russian patent published in 2018 - IPC G06Q20/38 

FIELD: network communication technology.

SUBSTANCE: invention relates to network communication technologies. Method comprises: storage, in the memory of the mobile device, of at least (i) information about the device associated with the mobile device, (ii) program code associated with the first program, the code including an instance identifier, and (iii) program code associated with the second program, the code including the first key; generation of a characteristic feature of the device associated with the mobile device, based on the device information, by executing the code associated with the first program; generation of a random value by executing the code associated with the first program; construction of the value of the diversifier based on the generated characteristic feature of the device, the generated random value and the instance identifier included in the code associated with the first program; and decryption of the constructed value of the diversifier using the first key stored in the code associated with the second program by executing the code associated with the second program to obtain the storage key.

EFFECT: technical result is improved data transmission security.

24 cl, 17 dwg