The « permis utilisateur » of ENC charts is a unique identifying number attached to a device, or application, able to read the chart data encrypted ENC (S-63 format). This « User Permit » is required to record a system (chartplotter, chart reader, software) and allow to generate, for charts purchased, a single authentication code to use these charts to the referenced system. Le permis utilisateur (User Permit) consists of a chain of 28 digits hexadecimal code.User Permit
Give the example of a purchase on the website Chartworld.
You create an account on this website, and wish to purchase an official ENC : General chart of the Atlantic coasts of France.
Previously, you will have to fill out the form detailing your setup, in menu My Account > My Installations.
You are asked to fill in the fields on equipment used primarily to display charts (drop-down menu you choose MacENC / GPSNavX), vessel name, the hardware ID (Do not fill in this case), well as the famous « User Permit » and all the required fields marked with an asterisk.
The User Permit is provided in the Chart Manager of MacENC :
You have just to copy / paste that code in the Chartworld form :
Once registered your form, you can return to the website section « SHOP » to fill your basket and proceed with purchasing your charts. The charts that you download will only may be used on the Mac which is running MacENC single user license.
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