Canon iR3245, Network Manual

Page: 105 / 288

3
Using
a
TCP/IP
Network
Confirming a Key Pair and Device Certificate 3-53
Confirming a Key Pair and Device Certificate
The following procedure describes how to confirm a key pair and device certificate generated/
updated in "Setting a Key Pair and Device Certificate(p.3-51)."
1. On the TCP/IP Settings screen, press [Certificate Settings]
→
[Key
andCertificate List]
→
[Key and Certificate List for this Machine].
If (invalid) is displayed to the left of a key pair, the key pair is corrupted or invalid. Follow the
procedure in "Setting a Key Pair and Device Certificate(p.3-51)," to generate/update a key pair.
You cannot delete or edit a key pair necessary for a device signature on the Key and Certificate List for this
Machine screen.
2. Select 'Device Signature Key'
→
press [Certificate Details]
→
[Certificate
Verification].
If [Certificate Verification] is grayed out or <The key is corrupted or invalid.> is displayed, you
cannot use the key pair. Follow the procedure in "Setting a Key Pair and Device
Certificate(p.3-51)," to generate/update a new key pair.
<Certificate Thumbprint> contains sender information used to validate the reliability of a PDF with a device
signature, by matching it with the MD5 or SHA-1 message digest number.
The expiration date for the device signature is set to 5 years after its key pair was generated/updated.
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