want to implement a network service involving sockets where servers and clients authenticate themselves and encrypt the transmitted data using SSL
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want to implement a network service involving sockets where servers and clients
authenticate themselves and encrypt the transmitted data using SSL
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- Computer Science Networks and should be done in C language. Create a UDP client and server program that not only is able to locally transfer files but it gives the client the ability to send multiple copies of the file to multiple servers. Once the server program is initiated, it waits until it receives client packets. It then reads and saves the payload of the packets. The client reads a file from the disk and sends it to each server over a UDP socket by breaking the file up into mtu-byte sized packets. Client needs to be concurrent in sending the packets to all of the servers using threadsTasks: Part A: Develop a UDP/IP server program in java that waits for clients to server. The server responds to the client with one of the following based on client’s request: Export secret key generated using KeyGenerator Export Text and Message Digest Export Text and Digital Signature Send original text for the encrypted text received from client Part B: Develop a UDP/IP client program that make request secret key, Message Digest, Digital Signature and original text by sending the encrypted text to server program developed (in Part A). This program will display the various objects received from server on its console.Please solve it correctly and please provide explanation of your answers. A PC and a Web Server are communicating over a TCP connection. The PC had started the three way handshake with the initial sequence number of 3069 . The Web Server's initial sequence number is 4830 . The window size of the PC is 815 bytes and the window size of the Web Server is 463 bytes. Using the third TCP handshake ack segment the PC sends the http request of the size 396 bytes to the Web Server. Then the Web Server answers with 3 segments containing the requested data. The first segment size is 42 bytes and the second segment size is 276 bytes and the third segment size is 146 bytes respectively. The PC receives all three segments within the timer. But unfortunately the second segment was corrupted. So the PC immediately sends an acknowledgement segment. Assume that the PC uses Selective Repeat/Reject ARQ. (d) What will be the window size of PC A after receiving only the first segment from webserver? (e)…
- Please solve it correctly and please provide explanation of your answers. A PC and a Web Server are communicating over a TCP connection. The PC had started the three way handshake with the initial sequence number of 3069 . The Web Server's initial sequence number is 4830 . The window size of the PC is 815 bytes and the window size of the Web Server is 463 bytes. Using the third TCP handshake ack segment the PC sends the http request of the size 396 bytes to the Web Server. Then the Web Server answers with 3 segments containing the requested data. The first segment size is 42 bytes and the second segment size is 276 bytes and the third segment size is 146 bytes respectively. The PC receives all three segments within the timer. But unfortunately the second segment was corrupted. So the PC immediately sends an acknowledgement segment. Assume that the PC uses Selective Repeat/Reject ARQ. (a) What will be the sequence number of the third TCP handshake signal send from PC to webserver?…Match the statements in the left column with the appropriate architecture in the right column. There is a server that is always on. Processes may request service from other processes or provide service to other processes. There is always a client process and a server process in any communication. HTTP uses this architecture. Hosts are controlled by users and could be up or down unpredictably. Self-scalable. A. Peer-to-peer. B. Neither client-server nor peer-to-peer. C. Client-server or peer-to-peer. D. Client-server. E. TCP/IP architecture.Consider accessing your e-mail with POP3. Suppose you have configured your mail client to operate in the 'download-and-delete' mode. When the client (C) fetches all emails from the server (S), the sequence of messages exchanged starts as follows. C: list S: 1 498 S: 2 912 S: C: retr 1 S: blah blah S: How many messages does the server store for the client? blah It cannot be known 912 498 None of the mentioned
- Implement date server and client in python using TCP sockets. The client willrequest the server to send the today’s date and server will send in dd/mm/yyyyformatSocket programming in c language in windows Implement one server and three clients using multithreaded exchanging messages between them and then doing checksum error detection or parityQ.7. Design and implement a client/ Multi-threaded Server Chat application where a set of clients are able to send their request to the Multithreaded Server. In this application, messages that are exchanged between client and server, must be encrypted using AES encryption algorithm. After receiving the message, each party (client or server) perform decryption operation and show the content of message on the terminal.
- Please solve it correctly and give proper explanation. Question: Given, you want to visit “welcomebacktophysicalexams.com”. Your network has alocal DNS server and is using a recursive lookup to fetch IP addresses and RTT of 29 ms.Others in your network have already visited the above website a few hours before yourvisit.After fetching the IP address, your PC sends a non-persistent HTTP request of size 109bytes to bring 13 objects of size 31 bytes each. In this particular connection, it requiresthe PC 67ms to send the TCP request to the server. I. What is the total RTT in ms in the DNS lookup?II. What is the total RTT in ms required (including DNS) to bring the full object toyour PC?III. What is the total file transmission time in ms after fetching the IP address?Please solve it correctly and please provide explanation of your answers. Please answer parts g, h and i. A PC and a Web Server are communicating over a TCP connection. The PC had started the three way handshake with the initial sequence number of 3069 . The Web Server's initial sequence number is 4830 . The window size of the PC is 815 bytes and the window size of the Web Server is 463 bytes. Using the third TCP handshake ack segment the PC sends the http request of the size 396 bytes to the Web Server. Then the Web Server answers with 3 segments containing the requested data. The first segment size is 42 bytes and the second segment size is 276 bytes and the third segment size is 146 bytes respectively. The PC receives all three segments within the timer. But unfortunately the second segment was corrupted. So the PC immediately sends an acknowledgement segment. Assume that the PC uses Selective Repeat/Reject ARQ. g) The second segment from webserver was corrupted. So the PC…USING JAVA (Java Socket /TCP Programming) Please make a program that will allow users to send private messages to other users (not the server). All the users have their usernames and passwords stored in an XML file Users can only send messages to online users Messages to offline users will be stored in a separate XML file