TKIP

1. TKIP (Temporal Key Integrity Protocol) is backwards compatible with WEP
   1. Built as a stop-gap for WEP
      1. Based on WEP to enhance security of existing hardware
   2. Add various security features
      1. MIC (Message Integrity Check) is added to protect integrity of messages
         1. Includes the sender's MAC address to ensure sender's identity
         2. a Timestamp is added to the MIC to prevent replay attacks
      2. a Key Mixing Algorithm creates a unique WEP key for each frame
      3. The Initialization Vector is doubled from 24-bits to 48-bits

Metadata

OSI or TCP/IP Layer

CCNA Exam Topic

#extop-1-11

Contributors

Sources