MipSdk-ProtectionApi-Cpp-Sample-Basic

par Tom Moser
Dernière mise à jour : 11/04/2019
Modifier sur GitHub

Summary

This application demonstrates using the MIP SDK Protection API to list available templates, then to encrypt/decrypt a string with that template.

The application demonstrates the following:

  • Initializing the ProtectionProfile
  • Adding the ProtectionEngine
  • Creating a ProtectionEngine::Handler
  • Generating a Publishing License (PL)
  • Using the PL to generate plaintext from ciphertext
  • Using the PL to decrypt ciphertext

Getting Started

Prerequisites

  • Visual Studio 2015 or later with Visual C++ development features installed
  • Python 2.7 installed and in the system path

Sample Setup

Project folder refers to the MipSdk-ProtectionApi-Cpp-Sample-Basic\MipSdk-ProtectionApi-Cpp-Sample-Basic directory in the folder where you cloned the repository.

  1. From a command prompt, run: git clone https://github.com/Azure-Samples/MipSdk-ProtectionApi-Cpp-Sample-Basic
  2. Launch the project by double-clicking MipSdk-ProtectionApi-Cpp-Sample-Basic.sln
  3. When the project starts, set the project type to x64
  4. Right click the project in Visual Studio and select Manage NuGet Packages
  5. Browse for Microsoft.InformationProtection.Protection and install.
  6. In Visual Studio, click the Build menu, then click Build. The application should compile at this point, but will crash if run.
  7. Continue to the steps below to configure the Azure AD App Registration and update the sample code.

Create an Azure AD App Registration

Authentication against the Azure AD tenant requires creating a native application registration. The client ID created in this step is used in a later step to generate an OAuth2 token.

Skip this step if you've already created a registration for previous sample. You may continue to use that client ID.

  1. Go to https://portal.azure.com and log in as a global admin. > Your tenant may permit standard users to register applications. If you aren't a global admin, you can attempt these steps, but may need to work with a tenant administrator to have an application registered or be granted access to register applications.
  2. Click Azure Active Directory, then App Registrations in the menu blade.
  3. Click View all applications
  4. Click New Applications Registration
  5. For name, enter MipSdk-Sample-Apps
  6. Set Application Type to Native
  7. For Redirect URI, enter mipsdk-auth-sample://authorize > Note: This can be anything you'd like, but should be unique in the tenant.
  8. Click Create

The Registered app blade should now be displayed.

  1. Click Settings
  2. Click Required Permissions
  3. Click Add
  4. Click Select an API
  5. Select Microsoft Rights Management Services and click Select
  6. Under Select Permissions select Create and access protected content for users
  7. Click Select then Done
  8. Click Add
  9. Click Select an API
  10. In the search box, type Microsoft Information Protection Sync Service then select the service and click Select
  11. Under Select Permissions select Read all unified policies a user has access to.
  12. Click Select then Done
  13. In the Required Permissions blade, click Grant Permissions and confirm.

Update Client ID, Username, and Password

  1. Open up main.cpp.
  2. Find line 62 and replace YOUR CLIENT ID HERE with the client ID copied from the AAD App Registration.
  3. Update the strings for application name and version on line 62.
  4. Find line 69 and enter your test username and password.

Hard coding a username and password isn't recommended. For the scope of this sample, it's an easier way to abstract auth. We'll update this soon, but for now this is a good cross-platform example.

Run the Sample

Press F5 to run the sample. The console application will start and after a brief moment displays the labels available for the user.

  • Copy a template ID to the clipboard.
  • Paste the template in to the input prompt.
  • Enter a plaintext string.

The application will obtain a publishing license, use it to encrypt the string, then to decrypt the string.

Troubleshooting

If the application fails to authenticate, ensure that python.exe is in the system path and that the version is Python 2.7. Alternatively, updated line 61 in auth.cpp to point to the exact path of the executable.

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