Canon iR3245 Network Manual page 107

Select the key pair for the certificate you want to confirm → press [Certificate
Details] → [Certificate Verification].
3
If [Certificate Verification] is grayed out or <The key is corrupted or invalid.> is displayed, you
cannot use the key pair. After erasing the corrupted or invalid key pair, install a new key pair
and user certificate from a computer. (See the Remote UI Guide)
If you want to erase a registered key pair:
Select the key pair to erase → press [Erase].
Confirming a Key Pair and User Certificate 3-55