Since certificates have an expiration date, they have to be renewed regularly.
If your WLAN client requests your consent and displays data of the new certificate, you can compare it with the following to detect fraud attempts.
Server name: radius-eduroam.zih.tu-dresden.de
SHA1Fingerprint=CD:F4:17:20:64:B0:46:18:BB:95:C6:CB:87:63:61:F6:A0:F9:19:A1
SHA256Fingerprint=2E:10:4B:2A:B9:3D:BE:4C:57:88:A7:07:0F:4D:01:B9:5A:4D:FC:5B:BB:08:A8:44:E6:98:86:4C:9C:C5:CD:E4
MD5 Fingerprint=6E:37:56:50:E2:6C:64:59:E1:13:34:7D:D9:85:19:30
Validity
Not Before: Dec 2 00:00:00 2024 GMT
Not After : Dec 2 23:59:59 2025 GMT
from November 26, 2025
SHA1Fingerprint=00:93:3C:F9:F3:34:E5:E6:23:58:29:74:EA:DB:40:5B:70:EF:C3:F4
SHA256Fingerprint=A2:C7:2A:9C:2D:7D:F8:B6:EE:F3:B4:02:92:80:11:F4:68:59:37:B2:32:8E:76:88:3D:56:C1:98:59:68:D8:5B
MD5 Fingerprint=7D:0D:DB:D8:2C:73:B3:0B:C3:92:53:6A:45:96:F3:37
Validity
Not Before: Nov 10 00:00:00 2025 GMT
Not After : Nov 10 23:59:59 2026 GMT