Delegation of permissions in an electronic commerce system
US6523012B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1999 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | May 21, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q20/401
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
An electronic commerce system includes a broker computer system having a database of scrip representing a form of currency, a vendor computer system having a database containing products which may be exchanged for the scrip, a consumer computer system with which a user may initiate transactions with the scrip, and an agent computer system to which the consumer can delegate rights to perform actions with the scrip. To delegate actions on scrip, the delegator provides the delegatee with a delegation having a list of the delegated actions. In addition, the delegator determines a delegation scrip secret (DSS) and a delegation pass phrase (DPP) and securely passes these to the delegatee. The delegatee uses the DSS to authenticate itself to servers accepting the scrip and uses the DPP to encrypt the DSS while the scrip is stored by the delegatee. To perform an action with delegated scrip, the delegatee sends a request for the action to a server. The request includes the action, the scrip, the delegation, and a request stamp (RS) calculated using the DSS. The server validates the request by recalculating the RS. When server provides the delegatee with new scrip having multiple delegations…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.