/// <summary>Extension method which initializes an RSACryptoServiceProvider from a DER public key blob.</summary>
public static void LoadPublicKeyDER(RSACryptoServiceProvider provider, byte[] DERData)
{
byte[] RSAData = RSACryptoServiceProviderExtension.GetRSAFromDER(DERData);
byte[] publicKeyBlob = RSACryptoServiceProviderExtension.GetPublicKeyBlobFromRSA(RSAData);
provider.ImportCspBlob(publicKeyBlob);
}