System and method for protecting data across protection domain boundaries
US7836387B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2005 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Apr 9, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/606
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for ensuring or verifying the integrity of data transmitted between protection domains. When the data is transmitted, it may be received in a different logical configuration (e.g., as a different number of “chunks”). The receiving domain computes its data integrity metadata (e.g., checksum, CRC, parity) on its form of the data using its protection scheme (e.g., checksum algorithm), and also applies the sending domain's protection scheme to the data as it was received from the sending domain. Similarly, the sending domain applies the receiving domain's protection scheme to compute data integrity metadata on the transmitted data as it appears in the receiving domain. The metadata may be compared to determine whether the data was corrupted during the transfer. Either domain may forward its data integrity metadata to the other, which may store and/or forward it as needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.