Yealink Configuration Encryption Tool User Manual

Yealink Configuration Encryption Tool User Guide

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Yealink Configuration Encryption Tool User Guide

About This Guide

Configuration files contain sensitive information such as user accounts, login passwords or registration information. To protect sensitive information from tampering, you must encrypt configuration files. Yealink provides tools for encrypting configuration files on Windows platform and Linux platform respectively. You can ask the distributor or the Yealink Field Application Engineer for these tools, or you can download them online:

http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage.

This guide provides detailed information on how to encrypt configuration files using Yealink-supplied encryption tools, and how to deploy phones using these encrypted configuration files. The information applies to MP58, MP58-WH, MP56, MP54, T58A, T56A, T55A, T48S, T46S, T42S and T41S Skype for Business phones running firmware version 9 or later and CP960 Skype for Business phones running firmware version 8.

Introduction

The encryption tool encrypts plaintext <y0000000000xx>.cfg and <MAC>.cfg files (one by one or in batch) using 16-character symmetric keys (the same or different keys for configuration files) and generates encrypted configuration files with the same file name as before. This tool also encrypts the plaintext 16-character symmetric keys using a fixed key, which is the same as the one built in the phone, and generates new files named as <xx_Security>.enc (xx indicates the name of the configuration file, for example, y000000000066_Security.enc for y000000000066.cfg file). This tool generates another new file named as Aeskey.txt storing the plaintext 16-character symmetric keys for each configuration file.

For the security reasons, administrator should upload encrypted configuration files, <y0000000000xx_Security>.enc and/or <MAC_Security>.enc files to the root directory of the provisioning server. During auto provisioning, the phone requests to download <y0000000000xx>.cfg file first. If the downloaded configuration file is encrypted, the phone will request to download <y0000000000xx_Security>.enc file (if enabled) and decrypt it into the plaintext key (e.g., key2) using the built-in key (e.g., key1). Then the phone decrypts <y0000000000xx>.cfg file using key2. After decryption, the phone resolves configuration files and updates configuration settings onto the phone system. The way the phone processes the <MAC>.cfg file is the same to that of the<y0000000000xx>.cfg file.

Configuration Encryption Tool on Windows Platform

This tool supports Microsoft Windows XP and Windows 7 (both 32-bit and 64-bit) system.

Yealink Configuration Encryption Tool User Guide

To encrypt configuration files:

1.Double click “Config_Encrypt_Tool.exe” to start the application tool. The screenshot of the main page is shown as below:

When you start the application tool, a file folder named “Encrypted” is created automatically in the directory where the application tool is located.

2.Click Browse to locate configuration file(s) (e.g., y000000000066.cfg) from your local system in the Select File(s) field.

To select multiple configuration files, you can select the first file and then press and hold the Ctrl key and select the next files.

3.(Optional.) Click Browse to locate a target directory from your local system in the Target Directory field.

The tool uses the file folder “Encrypted” as the target directory by default.

4.(Optional.) Mark the desired radio box in the AES Model field.

If you mark the Manual radio box, you can enter an AES key in the AES KEY field or click Re-Generate to generate an AES key in the AES KEY field. The configuration file(s) will be encrypted using the AES key in the AES KEY field.

If you mark the Auto Generate radio box, the configuration file(s) will be encrypted using random AES key. The AES keys of configuration files are different.

Note AES keys must be 16 characters and the supported characters contain: 0 ~ 9, A ~ Z, a ~ z and the following special characters are also supported: # $ % * + , - . : = ? @ [ ] ^ _ { } ~.

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