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How-to Handle S-63 Encrypted Charts

S-57 vector charts may be encrypted following the S-63 standard. Decryption is done by means of a "user permit".
The user permit, containing a Manufacturer identifier (client id), is submitted to the chart vendor who will provide the encrypted charts.

On this page:

S-63 Encrypted Charts

Charts that were uploaded to the Apple device are encrypted and require a user permit which can be entered in the Qastor 3 Settings.

Multiple permits may be entered, provided they are separated by a comma or semicolon.

Select: Settings - Chart Preferences - User permit (scroll down on the Chart Preferences page)

User permit

A user permit contains 28 (hexadecimal) characters.
It can be found in the "User Permit.txt" file as generated by ENC Administrator.