/etc/wicd/encryption/templates/psu is in wicd-daemon 1.7.2.4-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | name = PSU
author = Alexander Anisimov
version = 1
require identity *Identity password *Password
protected password *Password
-----
ctrl_interface=/var/run/wpa_supplicant
network={
    ssid="$_ESSID"
    key_mgmt=IEEE8021X
    eap=PEAP
    phase2="auth=MSCHAPV2"
    identity="$_IDENTITY"
    password="$_PASSWORD"
}
 |