Global Patent Index - EP 0998801 A1

EP 0998801 A1 2000-05-10 - DATA SECURITY IN MULTIPOINT PUBLISH/SUBSCRIBE COMMUNICATIONS

Title (en)

DATA SECURITY IN MULTIPOINT PUBLISH/SUBSCRIBE COMMUNICATIONS

Title (de)

DATENSICHERHEIT IN EINEM MEHRPUNKTKOMMUNIKATIONSSYSTEM ZWISCHEN VERLEGER UND ABONNENT

Title (fr)

SECURITE DES DONNEES DANS UN SYSTEME DE COMMUNICATION MULTIPOINTS EDITEUR/ABONNE

Publication

EP 0998801 A1 (EN)

Application

EP 98940794 A

Priority

  • US 9816365 W
  • US 5463697 P

Abstract (en)

[origin: WO9907104A1] The method and program product are useful in a publish/subscribe communications system (30), such as one having a publisher (10) and at least one subscriber (20). In the method and program product the encrypted data is published to one or more subscribers (20', 20''). The subscriber attempts decryption but fails to decrypt the data. The method and the program product then initiate a key exchange between the subscriber (20', 20'') and the publisher (10). This results in passing the key and thereafter decrypting the published data.

IPC 1-7 (main, further and additional classification)

H04L 9/32

IPC 8 full level (invention and additional information)

G09C 1/00 (2006.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01)

CPC (invention and additional information)

H04L 9/0841 (2013.01); H04L 9/3247 (2013.01)

Citation (search report)

See references of WO 9907104A1

Designated contracting state (EPC)

BE CH DE ES FR GB LI NL SE

EPO simple patent family

WO 9907104 A1 19990211; WO 9907104 B1 19990415; AU 8898698 A 19990222; CA 2299505 A1 19990211; EP 0998801 A1 20000510; JP 2001512923 A 20010828

INPADOC legal status


2004-08-11 [18W] WITHDRAWN

- Effective date: 20040611

2000-05-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000228

2000-05-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE CH DE ES FR GB LI NL SE