ArchiSteamFarm.MobileAuthenticator.GenerateTokenForTime C# (CSharp) Метод

		private string GenerateTokenForTime(uint time) {
			if (time == 0) {
				Bot.ArchiLogger.LogNullError(nameof(time));
				return null;
			}

			byte[] sharedSecret = Convert.FromBase64String(SharedSecret);

			byte[] timeArray = BitConverter.GetBytes((long) time / CodeInterval);
			if (BitConverter.IsLittleEndian) {
				Array.Reverse(timeArray);
			}

			byte[] hash;
			using (HMACSHA1 hmac = new HMACSHA1(sharedSecret)) {
				hash = hmac.ComputeHash(timeArray);
			}

			// The last 4 bits of the mac say where the code starts
			int start = hash[hash.Length - 1] & 0x0f;

			// Extract those 4 bytes
			byte[] bytes = new byte[4];

			Array.Copy(hash, start, bytes, 0, 4);

			if (BitConverter.IsLittleEndian) {
				Array.Reverse(bytes);
			}

			uint fullCode = BitConverter.ToUInt32(bytes, 0) & 0x7fffffff;

			// Build the alphanumeric code
			StringBuilder code = new StringBuilder();

			for (byte i = 0; i < CodeDigits; i++) {
				code.Append(CodeCharacters[fullCode % CodeCharacters.Length]);
				fullCode /= (uint) CodeCharacters.Length;
			}

			return code.ToString();
		}