Methods and apparatus for secure distribution of program content
US7864957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2002 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Sep 11, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/101
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus in accordance with the present invention are operable to carry out certain functions including: receiving an encrypted program at a processing apparatus; transmitting a machine ID over a network to an administrator; receiving registration data over the network from the administrator in response to the machine ID; transmitting the registration data over the network to a distributor; receiving an encrypted decryption key and an encrypted virtual ID at the processing apparatus over the network from the distributor in response to the registration data; decrypting the encrypted decryption key using the virtual ID, and decrypting the encrypted program using the decryption key; re-encrypting the program using the virtual ID; and storing the encrypted virtual ID and the re-encrypted program in a first storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.