US 7,321,969 B2
Secure instant messaging system using instant messaging group policy certificates
Isadore Schoen, Burke, Va. (US); and Michael Boberski, McLean, Va. (US)
Assigned to Entrust Limited, Ottawa, Ontario (Canada)
Filed on Apr. 26, 2002, as Appl. No. 10/133,050.
Prior Publication US 2003/0204720 A1, Oct. 30, 2003
Int. Cl. H04L 9/00 (2006.01)
U.S. Cl. 713—153  [713/156; 726/12] 12 Claims
OG exemplary drawing
 
1. A method for facilitating instant messaging comprising:
receiving a secure instant messaging group policy certificate issued by a instant messaging public key infrastructure (PKI) policy certificate issuing unit wherein the secure instant messaging group policy certificate includes data identifying at least instant messaging group members; and
communicating an instant message from one instant messaging group member to at least another group member based on the data identifying instant messaging group members from the secure instant messaging group policy certificate.