consolidate all repos to one for archive

semester_3/racunalniska_omrezja/naloga_2/Odjemalnik/Client.cs

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+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Security.Cryptography;
+using System.Text;
+
+namespace Client
+{
+    class Program
+    {
+        const int STD_PORT = 1234;
+        const string STD_IP = "127.0.0.1";
+        const int STD_MSG_SIZE = 1024;
+        const int STD_HEAD_LEN = 1;
+        const string STD_CRYPTOKEY = "mojKluc";
+
+       
+
+        static string Recive(NetworkStream networkStream)
+        {
+            try
+            {
+                byte[] reciveMessage = new byte[STD_MSG_SIZE];
+                int lenght = networkStream.Read(reciveMessage, 0, reciveMessage.Length);
+                return Encoding.UTF8.GetString(reciveMessage, 0, lenght);
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e.Message + e.StackTrace);
+                return "";
+            }
+        }
+
+        static void Send(NetworkStream networkStream, string Message)
+        {
+            try
+            {
+                byte[] bytes = Encoding.UTF8.GetBytes(Message);
+                networkStream.Write(bytes, 0, bytes.Length);
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e.Message);
+            }
+            
+        }
+
+        static string Decrypt(string encrypt, string key)
+        {
+            try
+            {
+              
+                using (MD5CryptoServiceProvider hashMD5Provider = new MD5CryptoServiceProvider())
+                {
+                    using (var tripleDes = TripleDES.Create())
+                    {
+                        tripleDes.Mode = CipherMode.ECB;
+                        tripleDes.Padding = PaddingMode.PKCS7;
+                        tripleDes.Key = hashMD5Provider.ComputeHash(Encoding.UTF8.GetBytes(key));
+                        byte[] byteBuff = Convert.FromBase64String(encrypt);
+                        return Encoding.Unicode.GetString(tripleDes.CreateDecryptor().TransformFinalBlock(byteBuff, 0, byteBuff.Length));
+                    }
+                }
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e.ToString());
+                return "";
+            }
+        }
+
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Client\n");
+            while (true)
+            {
+                Console.Write("Vnesi ukaz: ");
+                string cmd = "";
+                do
+                {
+                    cmd = Console.ReadLine();
+                }
+                while (cmd == null || cmd == "");
+
+                try
+                {
+                    TcpClient tcpClient = new TcpClient();
+                    tcpClient.Connect(STD_IP, STD_PORT);
+                    NetworkStream networkStream = tcpClient.GetStream();
+                    Send(networkStream, cmd);
+
+                    string response = Recive(networkStream);
+                    Console.WriteLine(response + "\n");
+
+                    if (cmd[0] == 'G')
+                    {
+                        Console.WriteLine(Decrypt(response,STD_CRYPTOKEY));
+                    }
+
+                    tcpClient.Close();
+                    if(response == "Q") return;
+                }
+                catch (Exception e)
+                {
+                    Console.WriteLine(e.Message);
+                    return;
+                }
+
+            }
+        }
+    }
+}

semester_3/racunalniska_omrezja/naloga_2/Odjemalnik/Odjemalnik.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>