System and method for optimizing error detection to detect unauthorized modification of transmitted data
US7680273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2004 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Sep 10, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed is a system and method for optimizing error detection to detect unauthorized modification of transmitted data. The system includes an encrypting device and a decrypting device operatively coupled to the first encrypting device. The encrypting device is configured to re-order and encrypt a first data stream to form a second data stream, and the decrypting device is configured to re-order and decrypt the second data stream to form a third data stream substantially identical to the first data stream. Each of the encrypting and decrypting devices includes at least one pseudo-random number generator, a reversible function device responsive to a first pseudo-random number generator to cause data stream bits to be re-ordered, and a XOR function responsive to a second or the first pseudo-random number generator to cause either consecutive portions of the data stream bits to be encrypted or decrypted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.