2.4.3 Configure the settings relating to alteration detection [Alteration detection]
Selecting “Alteration detection” enables detection using exclusive software when the data on the SD memory card is altered.
Alteration detection supports video files (MP4 format) only.
For further information about exclusive software for alteration detection and how to use it, refer to our website below.
Note
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When “Alteration detection” is used, a stream must be selected for “Recording stream 1”, and “Off” must be selected for “Recording stream 2”.
[Select certificate]
Select the certificate to be used with alteration detection.
Pre-installed: Selects a pre-installed certificate.
CA: Selects a “CA Certificate”. Only displayed when the “CA Certificate” is installed.
Default: Pre-installed
[Additional info for detecting alteration]
Select whether or not to give information for alteration detection to video files (MP4 format) to be saved on the SD memory card.
Note
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When “JPEG(1)”, “JPEG(2)”, or JPEG(3) is selected for “Recording format” of “Recording stream 1”, “On” cannot be selected.
[Pre-installed certificate - Certificate download]
Click the [Execute] button and download the root certificate for the pre-installed certificate. When implementing alteration detection of video data (MP4 files) on the SD memory card using exclusive software, the downloaded certificate is used.
[CA Certificate - CRT key generate]
CRT key (encryption key) used for alteration detection is generated. To generate the CRT key, click the [Execute] button to display “CRT key generate” dialog box.
[CA Certificate - Generate Certificate Signing Request]
When using the CA certificate issued by CA as the CA certificate used for alteration detection, the CSR (Certificate Signing Request) will be generated.
To generate the CSR, click the [Execute] button to display the “CA Certificate - Generate Certificate Signing Request” dialog window.
[CA Certificate - CA Certificate install]
Installs the certificate (CA certificate) issued by CA and displays the information of the installed certificate (CA certificate).
To install the certificate (CA certificate), click the [Browse...] button to display the [Open] dialog box, and select the file of the certificate (CA certificate) issued by CA, and click the [Execute] button.
If the certificate (CA certificate) is already installed, the file name of the installed certificate will be displayed.
[CA Certificate - Information]
Displays the information of the certificate (CA certificate) issued by CA.
When the [Confirm] button is clicked, the registered information of the installed certificate (CA certificate) will be displayed in the “CA Certificate - Confirm” dialog box. If the certificate (CA certificate) is not installed, the content of the generated CSR file will be displayed.
When the [Delete] button is clicked, the installed certificate (CA certificate) will be deleted.
[CA Certificate - Certificate download]
Downloads the certificate (CA certificate) issued by CA from the camera.
When implementing alteration detection of video data (MP4 files) on the SD memory card using exclusive software, the downloaded certificate is used.
IMPORTANT
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Before deleting the valid certificate (CA certificate), confirm that there is a backup file of the certificate (CA certificate) on the PC or another media. The backup file will be required when installing the certificate (CA certificate) again.