Authentication method and system with a smartcard
US5347580A · kind A · utility
444Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1993 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Jun 1, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2151
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This invention relates to a novel smartcard-based authentication technique using a smartcard that encrypts the time displayed on the card with a secret, cryptographically strong key. The (public) work station receives as input certain values defining the user, the card and a particular value derived from the encrypted time and encrypts and/or transmits these values to the server. The server, in turn, computes from received values some potential values and compares these to other received values. If the server determines a match, an accept signal is transmitted to the work station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.