sidd-kulk

Okay, let's break down this diagram of the HTTPS process step-by-step from the perspective of a security and network software engineer.

HTTPS stands for Hypertext Transfer Protocol Secure. It's essentially the standard HTTP protocol layered on top of a secure channel created using the TLS (Transport Layer Security) or its predecessor SSL (Secure Sockets Layer) protocol. The diagram provides a good, albeit simplified, overview of establishing this secure channel and using it.

Here's a detailed explanation of each stage shown:

## 1. TCP Handshake

• Purpose: Before any secure communication (TLS/SSL) can happen, a reliable network connection needs to be established between the client (e.g., your browser) and the server (the website's server). HTTPS uses TCP (Transmission Control Protocol) for this reliability.
• Steps:

sidd-kulk

import java.io.*;
import java.util.*;

public class BRC {
    public static void main(String[] args) throws FileNotFoundException {
        long millis = System.currentTimeMillis();
        System.out.println(calculateMinMeanMaxPerStation(readCSV()));
        System.out.println("Time taken = " + (System.currentTimeMillis() - millis));
    }

sidd-kulk

package com.springbootwebcsocket.demo;

import java.util.concurrent.Semaphore;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.ReentrantLock;

//@SpringBootApplication
public class DemoApplication {

    public static void main(String[] args) throws InterruptedException {

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public class Customer {
	public String type;
}

public class ProcessOrder
{
	public int getOrderGrandTotal(Customer customer, int subTotal)
	{
		if (customer.type.equals("EMPLOYEE"))
		{

sidd-kulk

enum COLOR {
    WHITE, BLACK
}

enum PIECE {
    NONE, BISHOP, KING // etc.
}

class Cell {
    private COLOR color; // Enum, white or black

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class Employee {
    private int id;
    private int yearOfBirth;
    private int monthOfBirth;
    private int dateOfBirth;
    private String addressFlat;
    private String addressStreet;
    private String city;
    private String state;
    private String pincode;

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public String doStuff(StringBuffer data) {
    
    if(data != null) {
        for (int i = 0; i < 10; i++) {
            for (int j = 0; j < 10; j++) {
                data.append(String.valueOf(i+j));
            }
            data.append("\n");
        }
    } else {

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class Library (val books: MutableList<Book>) {
	
	fun getBooks(): MutableList<Book> {
		...
	}
	
	fun addBook(book: Book) {
		...
	}
}

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class Library (var books: MutableList<Book>) {
	
	fun getBooks(): MutableList<Book> {
		...
	}
	
	fun setBooks(newBooks: MutableList<Book>) {
		...
	}
	

sidd-kulk

fun main() {
    val s = Square(2.0)
    println(s.area()) // Prints 4.0, duh!
    println(s - Square(3.0)) // Prints -5.0, Sweet!
}

data class Square (val side: Double) {
    operator fun minus(other: Square): Double {
        return this.area() - other.area()
    }