Overview Of Supported Security Features - Cisco 7962G Administration Manual

Chapter 1 An Overview of the Cisco Unified IP Phone

Overview of Supported Security Features

Table 1-3
7942G support. For more information about these features and about Cisco Unified Communications
Manager and Cisco Unified IP Phone security, refer to Cisco Unified Communications Manager
Security Guide.
For information about current security settings on a phone, choose Settings > Security Configuration
and choose Settings > Device Configuration > Security Configuration. For more information, see the
"Security Configuration Menu" section on page
Most security features are available only if a certificate trust list (CTL) is installed on the phone. For
Note
more information about the CTL, refer to "Configuring the Cisco CTL Client" chapter in Cisco Unified
Communications Manager Security Guide.
Table 1-3 Overview of Security Features
Feature
Image authentication
Customer-site certificate
installation
Device authentication
File authentication
Signaling Authentication
OL-12641-01
provides an overview of the security features that the Cisco Unified IP Phone 7962G and
Description
Signed binary files (with the extension .sgn) prevent tampering with
the firmware image before it is loaded on a phone. Tampering with
the image causes a phone to fail the authentication process and
reject the new image.
Each Cisco Unified IP Phone requires a unique certificate for device
authentication. Phones include a manufacturing installed certificate
(MIC), but for additional security, you can specify in Cisco
Unified Communications Manager Administration that a certificate
be installed by using the CAPF
LSC from the Security Configuration menu on the phone. See the
"Configuring Security on the Cisco Unified IP Phone" section on
page 3-14 for more information.
Occurs between the Cisco Unified Communications Manager server
and the phone when each entity accepts the certificate of the other
entity. Determines whether a secure connection between the phone
and a Cisco Unified Communications Manager should occur, and, if
necessary, creates a secure signaling path between the entities using
TLS protocol. Cisco Unified Communications Manager will not
register phones unless they can be authenticated by the Cisco
Unified Communications Manager.
Validates digitally-signed files that the phone downloads. The
phone validates the signature to make sure that file tampering did
not occur after the file creation. Files that fail authentication are not
written to Flash memory on the phone. The phone rejects such files
without further processing.
Uses the TLS protocol to validate that no tampering has occurred to
signaling packets during transmission.
Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.0
Understanding Security Features for Cisco Unified IP Phones
4-25.
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. Alternatively, you can install an
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