Changing the key on the phone – Polycom SOUNDPOINT SIP 3.1 User Manual

Page 297

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Miscellaneous Administrative Tasks

C - 5

You can check whether an encrypted file is the same as an unencrypted file by:

1.

Run the configFileEncrypt utility on the unencrypted file with the "-d"

option. This shows the "digest" field.

2.

Look at the encrypted file using WordPad and check the first line that

shows a "Digest=…." field. If the two fields are the same, then the

encrypted and unencrypted file are the same.

The following configuration file changes are required to modify this feature:

Changing the Key on the Phone

For security purposes, it may be desirable to change the key on the phones and

the server from time to time.

To change a key:

1.

Put the new key into a configuration file that is in the list of files

downloaded by the phone (specified in 000000000000.cfg or <Ethernet

address>.cfg).
Use the device.sec.configEncryption.key parameter to specify the

new key.

Note

If a phone downloads an encrypted file that it cannot decrypt, the action is logged,
an error message displays, and the phone reboots. The phone will continue to do
this until the boot server provides an encrypted file that can be read, an
unencrypted file, or the file is removed from the master configuration file list.

Note

The SoundPoint IP 300 and 500 phones will always fail at decrypting files. These
phones will recognize that a file is encrypted, but cannot decrypt it and will display
an error. This information is logged. Encrypted configuration files can only be
decrypted on the SoundPoint IP 301, 320, 330, 430, 501,550, 560, 600, 601, 650,
and 670 and the SoundStation IP 4000, 6000, and 7000 phones.

The master configuration file cannot be encrypted on the boot server. This file is
downloaded by the bootROM that does not recognize encrypted files. For more
information, refer to

Master Configuration Files

on page

2-5

.

Central

(boot server)

Configuration File: sip.cfg

Specify the phone-specific contact directory and the
phone-specific configuration override file.

For more information, refer to

Encryption

<encryption/>

on page

A-89

.

Configuration file:
<device>.cfg

Change the encryption key.

For more information, refer to

Flash Parameter

Configuration

on page

A-124

.

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