What is the best approach to encrypting a SQLite database file in .Net/C#? I'm using sqlite-dotnet2 wrapper.
There are tools like SQLite Encryption Extension and SQLite Crypt, but both are non-free, while my project is under GPL.
The naive approach I thought of using was to let SQLite handle a temporary file, then to encrypt it on program exit, and overwrite (zero-out) the original. The obvious drawback is that if program crashes (and while it is running), the plain text DB is accessible.
Is there a better way to approach this? Can I pass an encrypted stream to the wrapper (instead of using SQLiteConnection.CreateFile) ?
[edit] Maybe I am overthinking this. Is is sufficient to use Password option in the connection string? Would the file be encrypted properly in that case (or is it some weaker protection)?