Validate certificate password using X509Certificate2

Question

I want to validate a certificate password. At this moment I have code based on handling CryptographicException and checking an exception message. But this approach is dependent on English culture info.

    public bool VerifyPassword(byte[] fileContent, string password)
    {
        try
        {
            var certificate = new X509Certificate2(fileContent, password);
        }
        catch (CryptographicException ex)
        {
            if (ex.Message.StartsWith("The specified network password is not correct."))
            {
                return false;
            }

            throw;
        }

        return true;
    }

I have been looking for other solution how to validate the certificate password, but without success.

What is correct approach how to validate the certificate password?

I would appreciate any idea...

Answer 1

After few months I found better solution (perhaps the best). It is based on HResult value of the CryptograhpicExcaption.

static bool VerifyPassword(byte[] fileContent, string password)
{
    try
    {
        // ReSharper disable once UnusedVariable
        var certificate = new X509Certificate2(fileContent, password);
    }
    catch (CryptographicException ex)
    {
        if ((ex.HResult & 0xFFFF) == 0x56) 
        { 
            return false;
        };

        throw;
    }

    return true;
}

All HResults (System error codes) documentation is available on: https://msdn.microsoft.com/en-us/library/windows/desktop/ms681382.aspx