System.Security.Cryptography.RNGCryptoServiceProvider.GetNonZeroBytes C# (CSharp) Метод

        public override void GetNonZeroBytes(byte[] data) => _impl.GetNonZeroBytes(data);

        public static string GetUniqueIndentifier(int length)
        {
            if (length <= 0)
            {
                return(string.Empty);
            }
            int maxSize = length;

            char[] chars = new char[62];
            string a     = "abcdefghijklmnopqrstuvwxyz1234567890";

            chars = a.ToCharArray();
            int size = maxSize;

            byte[] data = new byte[1];
            System.Security.Cryptography.RNGCryptoServiceProvider rng = new System.Security.Cryptography.RNGCryptoServiceProvider();
            rng.GetNonZeroBytes(data);
            size = maxSize;
            data = new byte[size];
            rng.GetNonZeroBytes(data);
            StringBuilder result = new StringBuilder();

            foreach (byte b in data)
            {
                result.Append(chars[b % (chars.Length - 1)]);
            }
            if (result[0] >= '0' && result[0] <= '9')
            {
                return(GetUniqueIndentifier(length));
            }
            return(result.ToString());
        }