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802.11i - Coggle Diagram
802.11i
wpa
address both encryption and authentication
for encryption temporal key intigrity protocol (tkip )
generate key for each new packet
use key longer than 128
use message integrity cjheck mic)
for authentication usse preshared key (PSK)
ue passphrade to generate key
key must be same value as ap
vulnirabilities of wap
key managment
keys must be changed in regular basis
key must disclosed to enf userr
key is configured manually without security
passphrase is fewer than 20 chars
wpa2
for encryption
AES advanced encryption standars
done through more than round for 128 bit key and second step bits is subsituted and re arranged
cbc mac
used to detect modifications provide integricty
block chaining message authentication code
ccmp counter mode with cipher block chaining authentication code protocol
specifies the use of aes with ccm
Both CCMP and TKIP use a 128-bit key for encryption
▪ Both methods use a 64-bit MIC value