Bootstrap channel security arrangement for communication network
US4982430A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1985 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Apr 24, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and a method are disclosed to enable on-line modification and upgrading of terminal software in a communication network while maintaining the integrity of communication between a service provider and a subscriber using the network. Software is downloaded on a booter channel on the communication network. A subscriber terminal, coupled to the network initiates a communication with the network to receive downloaded booter data. The downloaded data is stored, and a checksum is computed from at least a portion of the downloaded data. The checksum is tested for validity, and control of the subscriber terminal is released to the downloaded software only if the checksum is valid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.