Locking mechanism for use with one-time access code
US6300873A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2000 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Apr 21, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/10
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A request for an access code for a locking mechanism is received; and a one-time use access code for the locking mechanism is subsequently issued. The one-time use access code may be issued from a list of currently available access codes for the locking mechanism in response to a request therefor, for example by a merchant or delivery service. Such a code may be issued by a server, which server is further responsible for updating the list of available access codes in response to an indication that a code has been used or has otherwise expired. The list of currently available access codes is preferably a subset of all access codes for the locking mechanism, which codes may be generated using a cryptographically strong random number generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.