OMA DRM: Create DCF

Download: Chilkat .NET Assemblies

Demonstrates how to create a .dcf file using Chilkat OMA DRM in C#.

// Create a new .dcf file.
Chilkat.OmaDrm omaDrm = new Chilkat.OmaDrm();

// A Chilkat Crypt unlock code will work here.
omaDrm.UnlockComponent("Anything for 30-day trial");

// Set the content type here:
omaDrm.ContentType = "image/gif";

// Substitute your own URI here:
omaDrm.ContentUri = "cid:my-text-20060925101425-1396302043@site.com";

// Substitute your own information here, but keep the
// Encryption-Method the same.
omaDrm.Headers = "Encryption-Method: AES128CBC;padding=RFC2630" + 
"\r\n" + "Content-Name: \"Orval\"" + 
"\r\n" + "Content-Description: \"Orval\"" + 
"\r\n" + "Content-Vendor: \"Orval\"" + 
"\r\n" + "Icon-Uri: http://www.site.com/icons/orval2.dcf.png";

// You may set your initialization vector here:
omaDrm.SetEncodedIV("00010203040506070001020304050607", "hex");

// Your Base64-key for encryption can be set here:
omaDrm.Base64Key = "BiVVJOQee6y4PWYL+fbvJA==";

// In this example, the content is a GIF image.
omaDrm.LoadUnencryptedFile("orval2.gif");

// Finally, write the DCF file:
omaDrm.CreateDcfFile("orval2.dcf");

Important: The download for this example does not contain the ChilkatDotNet.dll which
must be downloaded and installed separately at http://www.chilkatsoft.com/downloads.asp.
Once installed, add a reference to the DLL in the project by following the instructions at
http://www.example-code.com/vbdotnet/step2.asp