Patent · US Active

System and method for sending secure messages

US8074066B2 · kind B2 · utility

9Cited by

7References

30Claims

0Family size

Assignee

RESEARCH IN MOTION LIMITED · CA

Inventors

Michael S. Brown · Dallas, US
Michael G. Kirkup · Waterloo, CA
Herb Little · Waterloo, CA

Key dates

Filing date	Jan 24, 2005
Grant date	Dec 6, 2011
Priority date	—
Expiry date	Oct 15, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/80
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Electronic messages are sent from a sending system to an identified recipient and are encoded using information contained in a certificate. A key store is accessed by a messaging application to determine if a certificate associated with the recipient is present. If no certificate is present in the key store the messaging application accesses one or more certificate services to obtain a certificate. Where validation of the retrieved certificate is required, the messaging application invokes a certificate validation process. One or more further certificates are obtained by the messaging application where the retrieved certificate is invalid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.