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Certificate conditions that can be set according to the types of encryption
Encryption on HTTP
communication fromthe
client to the machine (SSL/
TLSserver)
Encryption on HTTP
communication from the
machine to an remote
server (SSL/TLS client)
Encryption using IPsec
Digital signature
andencryption on e-mail
PDF/DocuWorks/
XPS*signature
How to check the certificate settings on Windows
To check the certificate settings, open the certificate file and check the fields on the
[Details] tab against the following.
Key encryption
Digital Signature
Server
Authentication
Client
Authentication
E-mail Protection
Mail Address
Certificate Conditions
Valid certificates can only be used. To check the certificate conditions, check [Properties]
>[Security] > [Certificate Management] > [Certificate Details] > [Validity].
Validity
Valid
Key usage (Only
when this item is
included in the V3
extended area)
Key
Digital
encrypt
signature
ion
O
O
O
O
X
O
O
O
O
O
[Key usage] includes "Key Encipherment".
[Key usage] includes "Digital Signature".
[Extended key usage] includes "Server Authentication".
[Extended key usage] includes "Client Authentication".
[Extended key usage] includes "E-mail Protection".
[Subject] includes "E=(E-mail address)", or [Subject alternative name]
includes "RFC822 Name=(E-mail address)".
Status
The certificate is
valid.
Encryption and Digital Signature Overview
Extended key usage (Only
when this item isincluded in
the V3 extended area)
Server
Client
E-mail
Authenti
authen
protect
caion
ticatio
ion
n
O
X
X
O
X
X
X
X
X
X
Cause
X
Mail
address
X
X
X
X
X
X
O
O
X
X
13
Remedy
X
391
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