Sqlite Encryption

Overview

• SQLite doesn’t support encrypting database files by default.

• Instead, we need to use a modified version of SQLite like SEE , SQLCipher , SQLiteCrypt , or wxSQLite3 .

• This article demonstrates using an unsupported, open-source build of SQLCipher, but the information also applies to other solutions since they generally follow the same pattern.

Hint

You will find more information about Sqlite Encryption with Microsoft.Data.Sqlite Here .

Hint

You will find the sqlite encryption sample here : Sqlite Encryption Sample

Tweak the nuget packages

Basically, installing the packages needed to use Sqlite encryption is pretty simple. Just override packages:

dotnet add package Microsoft.Data.Sqlite.Core
dotnet add package SQLitePCLRaw.bundle_e_sqlcipher

Your project file should be something like this:

<Project Sdk="Microsoft.NET.Sdk">
    <PropertyGroup>
        <OutputType>Exe</OutputType>
        <TargetFramework>netcoreapp3.1</TargetFramework>
    </PropertyGroup>

    <ItemGroup>
        <PackageReference Include="Dotmim.Sync.Sqlite" Version="0.6.0" />
        <PackageReference Include="Microsoft.Data.Sqlite.Core" Version="5.0.2" />
        <PackageReference Include="SQLitePCLRaw.bundle_e_sqlcipher" Version="2.0.4" />
    </ItemGroup>
</Project>

Here is a screenshot of Visual Studio, after installing the packages:

• As you can see, the Dotmim.Sync.Sqlite is referencing the Microsoft.Data.Sqlite package that is referencing Microsoft.Data.Sqlite.Core and SQLitePCLRaw.bundle_e_sqlite3.

• Because we made references at the root level of Microsoft.Data.Sqlite.Core and SQLitePCLRaw.bundle_e_sqlcipher, these two packages will be used in place of the Microsoft.Data.Sqlite’s packages.

Code

The code is prett much the same code, just ensure you’re filling a Password in your Sqlite connection string:

// connection string should be something like "Data Source=AdventureWorks.db;Password=..."
var sqliteConnectionString = configuration.GetConnectionString("SqliteConnection");
var clientProvider = new SqliteSyncProvider(sqliteConnectionString);

// You can use a SqliteConnectionStringBuilder() as well, like this:
//var builder = new SqliteConnectionStringBuilder();
//builder.DataSource = "AdventureWorks.db";
//builder.Password = "...";