Aditi.SignatureAuth.Signature.Signature C# (CSharp) Method

        public Signature(string id)
        {
            if (string.IsNullOrEmpty(id))
            {
                throw new ArgumentNullException("id");
            }
            this.Id = id;

            this.Timestamp = DateTimeOffset.UtcNow;

            var b = new byte[8];
            var characters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".ToCharArray();
            var rng = new Random();
            this.Nonce = new string(Enumerable.Range(0, 8).Select(n => characters[rng.Next(characters.Length)]).ToArray());
        }