IMPROVED STORAGE KEY GENERATION METHOD AND SYSTEM IN MOBILE DEVICE WITHOUT PROTECTIVE ELEMENTS Russian patent published in 2019 - IPC G06Q20/38 

FIELD: network communication technologies.

SUBSTANCE: method comprises: storing in the mobile device memory of at least (i) information about the device associated with the mobile device, (ii) associated with the first program software code, wherein the code includes the instance identifier, and (iii) associated with the second program software code, wherein the code includes the first key; device characteristic feature generation, associated with the mobile device, based on the device information, by means of associated with the first program code execution; random value generation by means of associated with the first program code execution; diversifier value building based on the device generated characteristic feature, generated random value and the instance identifier, included in the associated with the first program code; and the diversifier constructed value decrypting using the stored in the associated with the second program code first key by associated with the second program code execution to obtain the storage key.

EFFECT: technical result consists in increase in the data transmission security.

18 cl, 17 dwg