//This API works the same as AESContentKey constructor in PlayReady Server SDK
public static string GetPlayReadyContentKeyFromKeyIdKeySeed(string keyIdString, string keySeedB64)
{
Guid keyId = new Guid(keyIdString);
byte[] keySeed = Convert.FromBase64String(keySeedB64);
byte[] contentKey = CommonEncryption.GeneratePlayReadyContentKey(keySeed, keyId);
string contentKeyB64 = Convert.ToBase64String(contentKey);
return(contentKeyB64);
}
public void PlayReadyContentKeyGenerationKnownGoodTest()
{
string _keySeed = "XVBovsmzhP9gRIZxWfFta3VVRPzVEWmJsazEJ46I";
string _knownGoodGuid = "339C45B5-FB6D-4BD9-994C-EABD9D41C95B";
string _wellKnownKeyString = "pTfNwMplhBQG1SXnvyLXVA==";
byte[] keySeedInBinary = Convert.FromBase64String(_keySeed);
Guid wellKnownGuid = new Guid(_knownGoodGuid);
byte[] generatedKey = CommonEncryption.GeneratePlayReadyContentKey(keySeedInBinary, wellKnownGuid);
string generatedKeyAsString = Convert.ToBase64String(generatedKey);
Assert.AreEqual <string>(_wellKnownKeyString, generatedKeyAsString);
}