/// <summary>
/// Determines whether the <see cref="ILicense.Signature"/> property verifies for the specified key.
/// </summary>
/// <param name="publicKey">The public key in xml string format to verify the <see cref="ILicense.Signature"/>.</param>
/// <returns>true if the <see cref="ILicense.Signature"/> verifies; otherwise false.</returns>
public bool VerifySignature(string publicKey)
{
var signTag = Element("Signature");
if (signTag == null)
return false;
try
{
signTag.Remove();
using (var e = new Security.Cryptography.ElGamal.ElGamalManaged())
{
e.FromXmlString(publicKey);
return e.VerifySignature(Encoding.UTF8.GetBytes(ToString(SaveOptions.DisableFormatting)),
Convert.FromBase64String(signTag.Value));
}
}
finally
{
Add(signTag);
}
}
