Create a program using C# that implements the stream ciphers Cryptographic method . A stream cipher method inputs digits, bits, or characters and encrypts the stream of data. The onetime pad is an example of a stream cipher.In this formative you have been requested to create an application that will work as the One-time pad (OTP), also called Vernam-cipher or the perfect cipher. This is a crypto algorithm where plaintext is combined with a random key and generate a ciphertext. The programme should received a string " How are you  Isaac "  The programme should generate an OTP of the length of the string entered "How are you  Isaac "

Write a high-security program in C that reads positive integers from a file "/challenge/numbers.txt" in the same directory as the program and outputs the biggest and smallest number.        Input (from numbers.txt):            100            45            12            0            42            922            2        Output:            922            0

in java Declare a FileOutputStream named fileStream and a PrintWriter named outFS. Ex: If the input is data.txt Ahmed, then data.txt contains: Ahmed purchased melons 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22     import java.io.IOException;   public class MelonDataProcessor { publicstaticvoidmain(String[] args) throwsIOException { Scannerscnr=newScanner(System.in); StringdataFileName; StringmelonOrder; /* Additional variable declarations go here */   dataFileName=scnr.next(); fileStream=newFileOutputStream(dataFileName); outFS=newPrintWriter(fileStream);   melonOrder=scnr.next();   outFS.println(melonOrder+" purchased melons"); outFS.close(); } }

Assume that you are designing a simple text editor (like Notepad) that supports inserting text, copy, paste and editing for any size file (including book-length files). Between the String objects and StringBuffer objects, which one is more appropriate and why? O String, because StringBuffer is read-only String, because it will execute more efficiently String, because only simple operations are needed StringBuffer, because it allows for changing the characters stored in the object StringBuffer, because it has copy and paste methods

Professor Potter, a punning pedantic, practices puzzling her students. She has left a secret message, of unknown length, encoded in a file for you to unravel. The setup is simple: each line of the file contains one char and one non-negative integer. The key to reading the message is organizing the characters in the proper order. The integer indicates the position of the character within the message. For example: e 2 b 1 a 3 h 5 c 4 spells 'beach' when unraveled. Write a program that will: Ask the user for the name of a file Check to see that the file exists and contains some data. Open and read this file exactly once Using your MessageDecoder class, unravel and display the message Offer to do it again on another file Required classes: You will create and submit 2 classes: MessageDecoder class: Responsible for converting a scrambled message file into plain text. Contains a public method getPlainTextMessage() that returns the String object. The scrambled file must be scanned only once…