encryption key

Magento Encryption Key is generated during the Magento engine Installation. It is used for the encryption and the security storage of the sensitive data in the script’s database:

Magento Encryption Key is kept in the app/etc/local.xml file on your server. You can access it via the File Manager tool in your cPanel or via FTP. In this file, you should look for the following code:

<crypt><key><!--[CDATA[ENCRYPTION_KEY]]--></key></crypt>

In this code the ENCRYPTION_KEY string is replaced by the actual encryption key.

IMPORTANT: You should always keep your Magento encryption key securely saved somewhere. You will need it in case you want to move your data to a different Magento installation. In addition, some payment and shipment processors require it to operate correctly.