Opc.Ua.CertificateFactory.SetSuitableDefaults C# (CSharp) Method

        private static void SetSuitableDefaults(
            ref string applicationUri,
            ref string applicationName,
            ref string subjectName,
            ref IList<String> domainNames,
            ref ushort keySize,
            ref ushort lifetimeInMonths,
            bool isCA)
        {
            // enforce recommended keysize unless lower value is enforced.
            if (keySize < 1024)
            {
                keySize = defaultKeySize;
            }

            if (keySize % 1024 != 0)
            {
                throw new ArgumentNullException("keySize", "KeySize must be a multiple of 1024.");
            }

            // enforce minimum lifetime.
            if (lifetimeInMonths < 1)
            {
                lifetimeInMonths = 1;
            }

            // parse the subject name if specified.
            List<string> subjectNameEntries = null;

            if (!String.IsNullOrEmpty(subjectName))
            {
                subjectNameEntries = Utils.ParseDistinguishedName(subjectName);
            }

            // check the application name.
            if (String.IsNullOrEmpty(applicationName))
            {
                if (subjectNameEntries == null)
                {
                    throw new ArgumentNullException("applicationName", "Must specify a applicationName or a subjectName.");
                }

                // use the common name as the application name.
                for (int ii = 0; ii < subjectNameEntries.Count; ii++)
                {
                    if (subjectNameEntries[ii].StartsWith("CN="))
                    {
                        applicationName = subjectNameEntries[ii].Substring(3).Trim();
                        break;
                    }
                }
            }

            // remove special characters from name.
            StringBuilder buffer = new StringBuilder();

            for (int ii = 0; ii < applicationName.Length; ii++)
            {
                char ch = applicationName[ii];

                if (Char.IsControl(ch) || ch == '/' || ch == ',' || ch == ';')
                {
                    ch = '+';
                }

                buffer.Append(ch);
            }

            applicationName = buffer.ToString();

            // ensure at least one host name.
            if (domainNames == null || domainNames.Count == 0)
            {
                domainNames = new List<string>();
                domainNames.Add(Utils.GetHostName());
            }

            // create the application uri.
            if (String.IsNullOrEmpty(applicationUri))
            {
                StringBuilder builder = new StringBuilder();

                builder.Append("urn:");
                builder.Append(domainNames[0]);
                builder.Append(":");
                builder.Append(applicationName);

                applicationUri = builder.ToString();
            }

            Uri uri = Utils.ParseUri(applicationUri);

            if (uri == null)
            {
                throw new ArgumentNullException("applicationUri", "Must specify a valid URL.");
            }

            // create the subject name,
            if (String.IsNullOrEmpty(subjectName))
            {
                subjectName = Utils.Format("CN={0}/DC={1}", applicationName, domainNames[0]);
            }
        }
        #endregion