Format and protection
S-57 is a hydrographic data exchange standard; S-63 provides a protection scheme for ENC data. Having a file does not mean every application can use it or that its licence permits use.
Open Marine support
Open Marine Charts supports importing and converting unencrypted S-57. It does not decrypt S-63 or protected commercial charts.
Before departure
Check the source, coverage, updates and licence. Software does not turn an unauthorised or outdated source into a suitable navigation chart.
A format is not a licence
S-57 describes a hydrographic data exchange format; S-63 adds a protection and access-management scheme for ENC data. Licence, authorisation, coverage and currency are separate questions. A familiar file extension alone does not establish permission for a particular use.
What to expect from Open Marine
The project documents import of unencrypted S-57 and conversion for locally served tiles. It does not implement S-63, oeSENC or decryption of protected commercial charts. If your charts need one of those systems, ask the provider for an authorised compatible solution.