Protection of program code of apps of mobile computing devices
US9762385B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2015 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Dec 7, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Original program code of an app of a mobile operating system is protected by splitting the original program code into several program code segments and encrypting the program code segments. The encrypted program code segments are received in separate files in a mobile computing device, where the encrypted program code segments are loaded in memory of the mobile computing device. The encrypted program code segments are decrypted, and the resulting decrypted program code segments are stored in non-contiguous blocks of memory. The decrypted program code segments are parsed for loading and execution in the mobile computing device, such as by a Dalvik process virtual machine of an ANDROID operating system of the mobile computing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.