Which of the following tools is John using to crack the wireless encryption keys?

John works as a professional Ethical Hacker. He has been assigned the project of testing the security of www.abc.com. He is using a tool to crack the wireless encryption keys.

The description of the tool is as follows:

It is a Unix-based WLAN WEP cracking tool that recovers encryption keys. It operates by passively monitoring transmissions. It uses Chipertext Only Attack and captures approximately 5 to 10 million packets to decrypt the WEP keys.

Which of the following tools is John using to crack the wireless encryption keys?
A . Kismet
B . AirSnort
C . PsPasswd
D . Cain

Answer: B