Method and system for generating an advanced storage key in a mobile device without secure elements
US11361313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2018 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Jan 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/102
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for building an advanced storage key includes: storing, in a mobile device, at least (i) device information associated with the mobile device, (ii) program code associated with a first program including an instance identifier, and (iii) program code associated with a second program including a first key; generating a device fingerprint associated with the mobile device based on the device information via execution of the code associated with the first program; generating a random value via execution of the code associated with the first program; building a diversifier value based on the generated device fingerprint, the generated random value, and the instance identifier included in the code associated with the first program; and decrypting the built diversifier value using the first key stored in the code associated with the second program via execution of the code associated with the second program to obtain a storage key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.