Global Patent Index - EP 1000520 A1

EP 1000520 A1 2000-05-17 - SYSTEM AND METHOD FOR PREVENTING REPLAY ATTACKS IN WIRELESS COMMUNICATION

Title (en)

SYSTEM AND METHOD FOR PREVENTING REPLAY ATTACKS IN WIRELESS COMMUNICATION

Title (de)

SYSTEM UND VERFAHREN ZU BETRUGSVERHINDERUNGEN BEI WIEDERHOLUNGSVERSUCHEN IN EINEM SCHNURLOSEN KOMMUNIKATIONSYSTEM

Title (fr)

SYSTEME ET PROCEDE DESTINES A EVITER LES ATTAQUES PAR REEXECUTION EN RADIOCOMMUNICATION

Publication

EP 1000520 A1 (EN)

Application

EP 98938232 A

Priority

  • US 9815995 W
  • US 5444097 P

Abstract (en)

[origin: WO9907178A1] A method and apparatus for confirming the identity of a mobile station in a communication network. A mobile station transmits a security value to obtain access to the network. The system authenticates the mobile station prior to granting it access to the network. The system performs an additional procedure before granting access to the system if the security value sent by the mobile station matches a previously transmitted security value. Using this invention, the system prevents attempts of replay attacks by intruders.

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

H04Q 7/38

IPC 8 full level (invention and additional information)

H04L 29/06 (2006.01); H04W 12/00 (2009.01); H04W 12/06 (2009.01); H04W 12/08 (2009.01); H04W 12/12 (2009.01); H04W 74/00 (2009.01)

CPC (invention and additional information)

H04L 63/0823 (2013.01); H04W 12/06 (2013.01); H04W 12/12 (2013.01); H04W 74/00 (2013.01)

Citation (search report)

See references of WO 9907178A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9907178 A1 19990211; AU 8680398 A 19990222; CN 1124766 C 20031015; CN 1265813 A 20000906; EP 1000520 A1 20000517; JP 2001512941 A 20010828

INPADOC legal status


2006-11-08 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20060516

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

- Ref Legal Event Code: 17P

- Effective date: 20000127

2000-05-17 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB