Xamarin.Forms get file is not a database both android and iOS

SQLCipher Issues
1

I am using trial version on Xamarin.iOS and Xamarin.Android(4.0.1)

I want to decrypt my sqlite database in the app.

I have some code in my constructor:

database = new SQLiteConnection(path, true, key);

database.ExecuteScalar<int>("PRAGMA kdf_iter = 4000;");
database.ExecuteScalar<int>("PRAGMA cipher_default_kdf_iter = 4000;");

database.ExecuteScalar<int>(String.Format("PRAGMA cipher_license = '{0}'", license));
database.ExecuteScalar<int>(String.Format("PRAGMA key = '{0}'", key));

Then I want to do some query like this:

return database.Query<UserInfo>("Select * from UserInfo where Cell = ? and Password = ?", cell, password);

I will get the file is not a database error…

2

Hello @1115

You do not need to execute the PRAGMA key command, that is handled for you with the constructor of the SQLiteConnection. If you are accessing a database file that was created with a different major version of SQLCipher, you might consider using the compatibility mode if you are unable to upgrade the file format directly. You can review your options in detail here.

1 Like
3

Thank you so much!!
It works!

4

Hi @1115

Great, we are happy to hear that worked for you!