C#: Need for help on encrypting connection string in app.config and save it there and decrypting it and use?

You can use aspnet_regiis. Exe -pef for that See Encrypting the connection string in ASP. NET V2.0 and Encrypting Web.

Config Values in ASP. NET 2.0 articles for further explanations.

You can use aspnet_regiis. Exe -pef for that. See Encrypting the connection string in ASP.NET V2.0 and Encrypting Web.

Config Values in ASP. NET 2.0 articles for further explanations.

Further to @Li0liQ's comment, you can use the command line program that comes with the . NET Framework 2.0+ aspnet_regiis. Check out the MSDN documentation here.

If you want to do protection manually, you can use class ProtectedData. Some code: class ConnectionStringProtector { readonly byte _salt = new byte { 1, 2, 3, 4, 5, 6 }; // Random values readonly Encoding _encoding = Encoding. Unicode; readonly DataProtectionScope _scope = DataProtectionScope.

LocalMachine; public string Unprotect(string str) { var protectedData = Convert. FromBase64String(str); var unprotected = ProtectedData. Unprotect(protectedData, _salt, _scope); return _encoding.

GetString(unprotected); } public string Protect(string unprotectedString) { var unprotected = _encoding. GetBytes(unprotectedString); var protectedData = ProtectedData. Protect(unprotected, _salt, _scope); return Convert.

ToBase64String(protectedData); } } here's a simple test: static void Main(string args) { var originalConnectionString = "original string"; var protector = new ConnectionStringProtector(); var protectedString = protector. Protect(originalConnectionString); Console. WriteLine(protectedString); Console.WriteLine(); var unprotectedConnectionString = protector.

Unprotect(protectedString); Console. WriteLine(unprotectedConnectionString); Console. WriteLine("Press ENTER to finish"); Console.ReadLine(); }.

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