Connecting to Institute WPA2-Enterprise Wifi Network

I'm trying to connect our institute's enterprise wifi with raspberry pi, I have tried many solutions like those ;
If anyone knows the way to connect wifi, It'll be very helpful
https://raspberrypi.stackexchange.co...e-wifi-network
https://linuxtechie.wordpress.com/20...a-hidden-ssid/
https://gist.github.com/chatchavan/3c58511e3d48f478b0c2

Infos :
SSID : KIST_wifi_secure
Security : 802.1xEAP
EAP:TTLS
phase2 auth:PAP
CA Certf: Don't validate
Identity: "xxxxxx"
password : "xxxxx"

Those are info about enterprise wifi.

Thanks