Citizen IF1-EFX1 - Public CA Signed Certificate Related Specifications; Handling of Saved Certificates When Restoring Factory Settings;Updating Firmware

4 SSL/TLS function
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Specification for exporting a certificate file signed by a internal certifying authority.
7-4-3. CA signed certificate related specifications
The specifications of CA signed certificate that can be imported and used are as follows.
Please make sure that the certificate and private key are paired before importing.
CA
signed certificate
“
.pem” format / “.der” format
Private key
“
.key” format
(
Password protection not supported)
E
ncryption algorithm
AES 128/256
H
ash algorithm
SH
A2-256, SHA1
Key Exchange Method
RSA 2048 bit
7-4-4. Handling of saved certificates when restoring factory settings/updating firmware
When the Factory Default process in the CONFIG>>Maintenance Tab is executed, each setting value
will be set to the default value and the registered certificate will be deleted; when the Firmware
Upgrade process is executed, each setting value and the registered certificate will be retained.
Encoding
type
Base64
File extension
.crt
Version
V3
Key Exchange Method
RSA 2048 bit
Signature algorithm
SHA2
-256 with RSA