Citizen IF1-EFX1 - Self-Signed Certificate Related Specifications

4 SSL/TLS function
58
7-4-2. Self-signed certificate related specifications
By entering the necessary items on the Web Manager screen, you can issue, save, and export a self-
signed certificate on this board. The initial state is without certificate information.
Self-signed certificate entry field
Field
Items
Initial value
Available characters and symbols
Max. Chars
Issuer Subject
Common Name
(CN)
IP address in use
Alphanumeric, Space,
"
-" (Hyphen), "." (Dot)
(Inputs other than IP addresses
are allowed.
)
64
chars
Organization Unit
(OU)
(
Blank)
Alphanumeric, Space,
","
(Comma), "+" (Plus),
"
-" (Hyphen), "." (Dot),
"/"
(Slash), "_" (Underscore),
"("
(Bracket L),")" (Bracket R)
64
chars
Organization
(O)
CITIZEN SYSTEMS
JAPAN
64
chars
Locate
(L)
(
Blank)
128
chars
State
(S)
(
Blank)
128
chars
Country
(C)
JP
Alphanumeric
2
chars
Validity
(Not After)
2049/12/31
or 1 year
after
“Create”
YYYY/MM/DD
(2020/01/01 ~ 2049/12/31)
Validity
(Not Before)
2020/01/01
or the time
of
“Create”
YYYY/MM/DD
(2020/01/01 ~ 2049/12/31)
The other items set in the certificate creation are entered as shown in the table below. No changes
can be made by the user.
Self-signed certificate fixed fields
Field
Items
Fixed value
Certificate Subject Alt Name
DNS Name
Common name（CN）
IP Address
Common name（CN） if common name is IP address.
Certificate Key Usage
Non-repudiation, Digital Signature, Key Encipherment (a0)
Extended Key Usage
TLS Web Server Authentication (1.3.6.1.5.5.7.3.1)
TLS Web Client Authentication (1.3.6.1.5.5.7.3.2)
Certificate Basic Constraint
Subject Type
End Entity
Path Length
Constraint
None