94 | Specifying the Identity of the Certificate Subject
Dell Networking W-ClearPass Guest 6.0 | Deployment Guide
l
Organizational Unit
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Common Name – this is the primary name used to identify the certificate
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Email Address
The
Key Type
drop-down list specifies the type of private key that should be created for the certificate. You can
select one of these options:
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1024-bit RSA
– lower security
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2048-bit RSA
– recommended for general use
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4096-bit RSA
– higher security
NOTE: Using a private key containing more bits will increase security, but will also increase the processing time required to create
the certificate and authenticate the device. The additional processing required will also affect the battery life of a mobile device. It
is recommended to use the smallest private key size that is feasible for your organization.
If you have selected
TLS Client
as the certificate type, the Subject Alternative Name section is also shown. The
alternative name can be used to specify additional identification details for the certificate’s subject. If one or more
of these options are provided, the issued certificate will contain a subjectAltName extension with the specified
values.
Table 16
explains the fields that may be included as part of the subject alternative name.
Name
Description
Device Type
Type of device, such as “iOS”, “Android”, etc.
Device UDID
Unique device identifier (UDID) for this device. This is typically a 64-bit, 128-bit or 160-
bit number represented in hexadecimal (16, 32 or 40 characters, respectively).
Device IMEI
International Mobile Equipment Identity (IMEI) number allocated to this device.
Device ICCID
Integrated Circuit Card Identifier (ICCID) number from the Subscriber Identity Module
(SIM) card present in the device.
Table 16:
Subject Alternative Name Fields Supported When Creating a TLS Client Certificate Signing
Request
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