/// <summary>
/// Verify file signature for current signed certificate.
/// </summary>
/// <param name="filename">An filename to verify.</param>
/// <returns>true if the file signature is valid; otherwise, false.</returns>
/// <exception cref="ArgumentNullException">The filename is null.</exception>
/// <remarks>
/// Warning:
/// This method do not check certificate matched expected.
/// Before use it always call <see cref="VerifyFileCertificate(string)"/>
/// or use method which verify both <see cref="VerifyFile(string)"/>
/// </remarks>
public bool VerifyFileSignature(string filename)
{
if (filename == null)
{
throw new ArgumentNullException(nameof(filename));
}
return(WinTrust.VerifyEmbeddedSignature(filename));
}
/// <summary>
/// Verify file signature for current signed certificate.
/// </summary>
/// <param name="filename">An filename to verify.</param>
/// <returns>true if the file signature is valid; otherwise, false.</returns>
/// <exception cref="ArgumentNullException">The filename is null.</exception>
/// <remarks>
/// Warning:
/// This method do not check certificate matched expected.
/// Before use it always call <see cref="VerifyFileCertificate(string)"/>
/// or use method which verify both <see cref="VerifyFile(string)"/>
/// </remarks>
public bool VerifyFileSignature(string filename)
{
if (filename == null)
{
throw new ArgumentNullException(nameof(filename));
}
_logger.Info("Verify file signature");
var result = WinTrust.VerifyEmbeddedSignature(filename);
_logger.Info($"Verify file signature result: {result}");
return(result == WinVerifyTrustResult.Success ||
result == WinVerifyTrustResult.UntrustedRoot ||
result == WinVerifyTrustResult.CertChaining);
}