System for persistently encrypting critical software file to prevent installation of software program on unauthorized computers
US6223288A · kind A · utility
229Cited by
31References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | May 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/007
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data encryption/decryption system is provided which encrypts a critical file to a software program using an embedded executable. The executable programs a user computer to prompt a user to purchase a license key to decrypt the critical file in order to run the software program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.