Write code in Perl Scripting for Log management. During file open, read, any error occurs, there will generate a Error Log file also.
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Write code in Perl Scripting for Log management. During file open, read, any error occurs, there will generate a Error Log file also.
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- Part 2: Encryption Objective: Develop a program that encrypts a plaintext file by XORing 128-bit blocks of the file with a key repeatedly until the entire file is encrypted. Details: • The plaintext file will be a book from Project Gutenberg. • The encryption method should use the XOR operation on the file, 128 bits at a time, with the key. • Each 128-bit block is XORed with the same key. • The program should work from the command line and accept three parameters: o The name of the key file o The name of the plaintext file o The desired name of the resulting ciphertext file Note: This encryption method is not supposed to be secure. Usage: $ ./bad_streamcipher_enc kf pt ctStep 1 Intro Cipher block chaining mode in DES (Date Encryption Standard): It is a type of cipher mode where all the cipher blocks are chained to avoid the replacement of blocks. In this model, all the blocks are chained before encryption; the plaintext in a block is XOR (Exclusive OR) with a cipher text of the previous bloc. Here, the key advantage is that the output present in the cipher text block is not the same as the plaintext block. arrow_forward Step 2 Solution: Cipher feedback mode in DES (Data Encryption Standard): This type of mode is used to encrypt the data by byte-to-byte. It is similar to the cipher block chaining mode, if the encryption process in cipher block chaining is reversed, it is the decryption process of Cipher feedback mode. During the encryption process, one byte is encrypted first and sent out. Then the encryption process is carried out with the next byte. Conclusion: The output stream generated by the encryption process in cipher…Need help to implement networking in python Server.py Load data from file This option will ask the user for a fully qualified path and will load a JSON file containing the information for users and pending messages. The format of the JSON file will be defined based on your implementation and it will the same used to save the data into file (menu option #4). Functionalities the server must provide: 1) User Sign Up: adds a user identified by a phone number to the system. a) Protocol: USR|username|password|display_name b) Response: 0|OK for success. 1| for an error. c) The server should validate that the username does not exist 2) User Sign In: verify user credentials a) Protocol: LOG|username|password b) Response: i) 0|OK → the credentials are correct. ii) 1|Invalid Credentials iii) 2|Already Logged In → in case that the user is logged in from another client. c) This will help the server knowing which user is connected. d) The server should keep a list of connected clients, which should…
- Safety time added to chains other than the critical chain is referred to as: A. feeding buffer (also known as feeding buffering). B. project buffer is a placeholder for C. path buffer is a type of buffer that stores the path of a file. D. the critical bufferThe term for safety time added to chains other than the critical chain is: Feeding buffer, first (also known as feeding buffering). B. project buffer serves as a stand-in for C. path buffer, a kind of buffer that holds a file's path. The crucial buffer, in DThe term for safety time added to chains other than the critical chain is: Feeding buffer, first (also known as feeding buffering).B. project buffer serves as a stand-in for C. path buffer, a kind of buffer that holds a file's path.The crucial buffer, in D
- What is the advantage of using dynamic loading?Please write in C/C++Write a program that spawn 2 thread: a producer and a consumer The producer thread MUST open an input file and repeatedly copy values to a CIRCULAR BUFFER The consumer should open an output file and repeatedly copy values from the same circular buffer to the file. If the producer is unable to write to the buffer (because it does not contain enough empty elements), or if the consumer is unable to read from the buffer (because it does not contain enough unread items), then it should proceed to the next iteration, choosing a new random number of bytes to copy.using c++ In this assignment you are going to implement your own version of university library system,Thesystem will have two different sides , the first one is to help the librarian to do his job and the other side for admin to manage every one permissions in the system , so You should provide the following features in your system: Admin view o Add/remove Studentso Add/remove librarian o Add/remove other admins Librarian viewo Add/Delete bookso Issue/Return bookso View bookso View Issued bookso Log in /log outo Search for the book(id/name) Simple backend for your system , You could use a file each row should represent itemo Books File should be something like:Id , Book Name, Author Name, Available quantity, Issued Quantity1,Oliver Twist, Charles Dickens,98,2In the previous the first row was the name of each column , you can do that or handle it in your code , id =1 , Book Name =Oliver Twist ..Etc. Tables neededo Books Id Book Name Author Name Available quantity Issued…
- What are best practices for logging and reporting exceptions in file operations to aid debugging and troubleshooting?Computer Security Project 3 AIM: Write the program that encrypts and decrypts a given message using the DES encryption algorithm. The message to be encrypted must be given by the user as program input. Each student is free to use the programming language that suits him. Required documents: The program code A print screen of program output after execution.For each of the following isolation levels, give an example of a schedule that respects the specified level of isolation but is not serializable: a. Read uncommitted b. Read committed c. Repeatable read