Enabling program code on target data processing devices
US11238137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2018 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Oct 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of enabling program code stored on target data processing devices, the method comprising: receiving an in encrypted value of a permitted number of target data processing devices that are permitted to have program code stored on them enabled, and using a security data processing device to decrypt the encrypted value and store the decrypted value on the security data processing device; and for each target data processing device, using the security data processing device to: determine whether the value of the permitted number of target data processing devices is greater than zero; if so, obtain a device identifier from the target data processing device; generate a license key from the device identifier; store the license key on the target data processing device; and decrement the value of the permitted number of target data processing devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.