# wpa_passphrase > Generate a WPA-PSK key from an ASCII passphrase for a given SSID. > More information: . - Compute and display the WPA-PSK key for a given SSID reading the passphrase from `stdin`: `wpa_passphrase {{SSID}}` - Compute and display WPA-PSK key for a given SSID specifying the passphrase as an argument: `wpa_passphrase {{SSID}} {{passphrase}}`