Authentication system in client/server system and authentication method thereof
US8181234B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 2006 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Mar 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The security of an authentication system using a one-time password is increased, a shift from an authentication system using a fixed password is simplified, and a range of use is increased. An authentication system wherein a one-time password is synchronized with time, or an authentication system wherein a one-time password is synchronized with the number of online service authentication requests, is provided. When a one-time password client 9 downloads a one-time password for online service authentication from a one-time password server 2, current time information or a current value of the number of online service authentication requests is made to coincide between the client and server, and an online service authentication request is authenticated as long as the downloaded one-time password for online service authentication is valid. The one-time password may also be synchronized with service usage details contained in the online service authentication request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.