What security feature is achieved with TKIP?

TKIP, or Temporal Key Integrity Protocol, is primarily a security feature used in wireless networks, specifically within the Wi-Fi Protected Access (WPA) standard. Its main function is to provide data encryption. TKIP was developed to enhance the security of the WEP (Wired Equivalent Privacy) protocol, which was prone to vulnerabilities. By dynamically generating encryption keys for each data packet transmitted over the network, TKIP ensures that even if one key is compromised, the overall security of the communication remains intact since different keys are used for different packets.

While data authentication is also an important aspect of wireless security, TKIP's primary role is the encryption of data to protect it from unauthorized access and eavesdropping during transmission. Other options like data compression and data transmission are not relevant to TKIP's functionalities, as they deal with how data is optimized or sent rather than protected. Thus, the key achievement of TKIP as a security feature lies in its ability to encrypt data effectively.