How wpa_supplicant calculate MIC in WPA mode?

[zhangxianshi]

Hi all,


When wpa_supplicant works in WPA mode, the configure is 
network={
............
 proto=WPA
 pairwise=TKIP
 group=TKIP
.............
}


How it calculates MIC and encrypts data? Which functions will be used?

Best regards,
zhangxianshi
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