141 SEFM03 Tutorial T6 Jorge Cuellar Brisbane, Sep 2003 Attacking the WEP Algorithm Passive attacks –Eavesdropping packets with same IV yields XOR of
{"Image DocumentName": "IEEE Security weaknesses", "Image ImageDescription": "The properties provided by IEEE do not meet today\u2019s security objectives. The missing user identification and the non-existing appropriate key management makes it difficult to detect unusual activity. Authentication is based on the MAC address and not on the user identity. Mutual authentication not provided (false base-station attacks possible) No keyed message digest used. 40-bit RC4 key length too short for today s application (because of US export restriction) Too short Initialization Vector (24 bits) Known (and partially known) plain-text attacks possible. Brisbane, Sep 2003.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}