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Note
•
To use the CA certificate, you need to apply for the approval and the issue of CA certificate by CA.
•
Either of the self-signed certificate or the CA certificate is available. If both of them are installed, the
CA certificate will be used prior to the self-signed certificate.
2.8.3.1 Generation of the CRT key (SSL encryption key)
IMPORTANT
•
When the CA certificate is valid, it is impossible to generate the CRT key.
•
When the CA certificate is used, the available key size varies depending on the CA. Confirm the
available key size in advance.
•
To generate the CRT key, it may take about 2 minutes. Do not operate the web browser until the
generation of CRT key is complete. While the CRT key is being generated, the refresh interval and line
speed may be lower.
1.
Click the [Execute] button of "CRT key generate".
→
The "CRT key generate" dialog box will be displayed.
2.
Click the [Execute] button.
→
The generation of CRT key will be started. When the generation is finished, the key size and generation
time & date of the generated key will be displayed on "Current CRT key".
Note
•
To change (or update) the generated CRT key, perform step 1 to 2. The CRT key and CA certificate
are valid in a set. When the CRT key is changed, it is necessary to re-apply for the CA certificate.
•
When the CRT key is updated, the log of the previous CRT key is saved. When the [History] button of
"Current CRT key" on the "CRT key generate" dialog box is clicked, the "Previous CRT key" dialog box
will be displayed, and it is possible to check the key size and generation time & date of the previous
key. When the [Apply] button is clicked on the "Previous CRT key" dialog box, it is possible to replace
the current CRT key with the previous one.
2 Settings
Operating Instructions
67
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