Method of exchanging digital data
US7171559B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1998 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Oct 8, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Party A encrypts unique first digital data and generates an authentication certificate authenticating that the encrypted first data is an encryption of the first data. Party B verifies the encrypted first data using the authentication certificate. When the encrypted first data is verified by B, A verifies second unique digital data received from B. When the second data is verified by A, B verifies unencrypted first data received from A. When the unencrypted first data is not verified by B, B sends the encrypted first data and the second data to party C. C decrypts the encrypted first data to obtain the decrypted first data, and verifies the decrypted first and the second data. When the decrypted first and the second data are verified, C sends the decrypted first data to B and the second data to A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.