WiFi Security: WEP, WPA, and WPA-2

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What is the primary goal of WEP in WiFi security?

To provide authentication for users
To provide data confidentiality similar to a wired network (correct)
To encrypt data using the AES cipher
To improve the speed of WiFi connections

What is the encryption method used by WEP?

RC4 (correct)
MD5
AES
SHA-256

What is the main problem with WEP's use of the RC4 cipher?

The cipher is too slow
The starting variables must be unique, but are easily duplicated (correct)
The cipher is not widely supported
The cipher is too complex

How many distinct possibilities are there for 24-bit starting variables in WEP?

2^24 (B) Signup and view all the answers

What is the estimated chance of duplicate starting variables occurring in WEP every 5000 packets?

52% (B) Signup and view all the answers

What is the attack that can be used to reverse engineer a WEP key by finding a correct starting variable?

Related key attack (D) Signup and view all the answers

What is the main difference between WPA and WPA2?

WPA2 uses CCMP, a derivative of AES, for password encryption (A) Signup and view all the answers

What type of attack is a Deauthentication Attack?

Man-in-the-middle attack (C) Signup and view all the answers

What is the purpose of a Deauthentication Attack?

To force computers to connect to a hacker's access point (D) Signup and view all the answers

What is the main goal of an Evil Twin attack?

To deceive someone into connecting to a fake access point (A) Signup and view all the answers

What is the purpose of a Denial of Service (DoS) attack?

To shut down an access point and prevent access to it (C) Signup and view all the answers

What is the method used by a hacker to perform a DoS attack on an access point?

Bombarding the access point with pings (D) Signup and view all the answers

What is the primary advantage of WPA over WEP?

Introduces the Temporal Key Integrity Protocol (TKIP) (B) Signup and view all the answers

What is the purpose of the Michael algorithm in WPA?

To provide a stronger checksum (A) Signup and view all the answers

What is a remaining vulnerability in WPA despite its improvements?

The ability to spoof shorter packets (D) Signup and view all the answers

What makes routers with WPS buttons still vulnerable to attacks?

The presence of vulnerabilities in WPS (C) Signup and view all the answers

What is the main reason brute force attacks are still possible in WPA?

The finite number of possible password combinations (A) Signup and view all the answers

What is the motivation behind developing an improved security protocol beyond WPA?

To eliminate vulnerabilities in WPA and WPS (D) Signup and view all the answers

What is the primary purpose of Network Cloaking?

To impede casual snoopers (D) Signup and view all the answers

What is the drawback of using MAC Filtering?

It can be easily hacked using MAC Spoofing (A) Signup and view all the answers

What is the purpose of RF Shielding?

To reduce the range of WiFi access (D) Signup and view all the answers

What is the vulnerability of Network Cloaking?

It can be easily hacked by advanced hackers (D) Signup and view all the answers

What is the main advantage of MAC Filtering?

It allows for whitelisting and blacklisting of devices (D) Signup and view all the answers

What is the weakness of RF Shielding?

It is vulnerable to moles from the inside (A) Signup and view all the answers

WEP Goal

WEP aims to provide data confidentiality like a wired network.

WEP Encryption

WEP uses RC4 encryption.