day 5

Question 1

WEP

Answer 1

uses RC4 stream cipher

Question 2

TKIP/WPA

Answer 2

uses the RC4 stream cipher

Question 3

CCMP/WPA2

Answer 3

802.11i implemented the CCMP encryption scheme.

CCMP uses the Advanced Encryption Standard (AES) cipher

Question 4

WEP keys

Answer 4

WEP shared-secret encryption keys are either 40 bits or 104 bits in length

Question 5

more on WEP

Answer 5

every user on a WEP-encrpyted network shares the exact same WEP encryption key.

Question 6

WPA/WPA2 modes

Answer 6

Personal/ Pre-shared key (PSK) mode (first mode)
enterprise mode (second mode)

Question 7

hashing

Answer 7

cowPatty and pyrit can pre-compute hash values

a rainbow table is a pre-computed hash table.

Question 8

WPA/WPA2 decryption

Answer 8

wireshark and airdecap-ng can decrypt only the data frames recorded since that 4-way handshake