Encryption And Digital-Signature Features For Scan Files - Dell C5765dn User Manual

Encrypting HTTP Communications from the Machine to a Remote Server
(SSL/TLS Client)
The SSL/TLS protocol is used to encrypt the HTTP communications between a remote
server and the machine.
No certificate is required in general. However, if a remote server is set to require an SSL client
certificate, you can use a certificate issued by another CA.
When verification of server certificates is enabled to verify the SSL/TLS certificate of a
remote server, import a certificate issued by another CA using Dell Printer Configuration
Web Tool to the machine.
Encryption using IPSec
IPSec enables IP-level (not application-level) encrypted communications with remote
devices.
If you select [Authenticate by Digital Signature] for [IKE Authentication Method], a
certificate issued by another CA is required.
If you select [Authenticate by Preshared Key], no device certificate is required.
Note
For information on IKE authentication methods, refer to "IKE Authentication Method" (P.342).
To verify the certificate of the remote device, you must register a root certificate created by
a CA of the remote device on the machine.
Note
E-mail Encryption/Digital Signature
S/MIME is used for E-mail Encryption/Digital Signature. To use S/MIME on the machine,
S/MIME certificates are used.
For an S/MIME certificate, you can use a certificate issued by another CA.
The personal certificates or the device certificates of destinations are required for encrypted
communications.
Note

Encryption and Digital-Signature Features for Scan Files

Encrypting PDF Documents
PDF documents can be encrypted and protected by a password.
Encryption/Digital Signature of PDF/XPS Documents
Digital signatures are available for PDF and XPS documents.
To use the digital signature, a device certificate is required.
For a device certificate, you can use any registered certificates.
Note
• If the certificate for IPSec contains the V3 extension (keyUsage), "digitalSignature" bit must be
asserted.
• To use certificates that have already been created, import them with Dell Printer Configuration Web
Tool.
• If the certificate for S/MIME contains an "email Address" or a V3 extension (keyUsage),
"digitalSignature" and "keyEncipherment" must be asserted. If the certificate contains v3 extension
(extendedKeyUsage), "emailProtection" must be set.
• XPS stands for XML Paper Specification.
Encryption and Digital Signature Overview
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