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Cryptography supports a number of security aims to provide the privacy of information, non-alteration of information and so on. Because of the high security benefit of cryptography it is broadly used today. There are the various goals of cryptography which are as follows − Confidentiality Information in computer is sent and has to be approached only by the authorized party and not by anyone else. The principle of confidentiality represent that only the sender and the intended recipient(s) should be able to make the content of a message. Confidentiality have negotiated if an unauthorized person is able to make a ... Read More
Introduction to Cryptography in Network SecurityCryptography is an automated numerical tool that plays an essential role in network security. It provides the confidentiality and integrity of data and supports authentication and non-repudiation to the users.Cryptography and User AuthenticationCryptography can play some multiple roles in user authentication. Cryptographic authentication systems support authentication capabilities through the need of cryptographic keys known or consumed only by authorized entities. Cryptography also provides authentication through its extensive use in other authentication systems.Applications of Cryptography in Password SystemsPassword systems apply cryptography to encrypt stored password files, card/token system apply cryptography to secure sensitive stored data, and ... Read More
As one of the world's biggest streaming services, Netflix has a problem: to delivery high-quality video content to millions of users at any time. One part of this complex problem is so-called caching warmup: the strategy of storing copies of frequently accessed data closer to the users to reduce latency and make the streams smoother.Read this article to understand the several strategies and technologies that Netflix adopted in order to warm its cache up as efficiently as possible to give its viewers' the best possible viewing experience.Predictive Caching Predictive caching is the fundamental technique used by Netflix to predict what ... Read More
In this article, we will understand how to find the area of a parallelogram using Java. A parallelogram has two pairs of parallel equal opposite sides. It has a base and a height which is the perpendicular distance between the base and its opposite parallel side. The area of a parallelogram is calculated using the formula − base * height i.e. b x h Problem Statement Write a program in Java to find the area of a parallelogram. Below is a demonstration of the same − Input Base : 6 Height : 8 Output Area parallelogram is ... Read More
In this article, we will learn to take a character input from the user and convert it into a string using Java. The toString() method of the Character class converts the character to a string. Problem Statement Write a program in Java to convert a character to a string. Input Enter a character :: T Output T Steps to convert character to string Following are the steps to convert characters to the string − We will start by importing the Scanner class to handle user input using java.util package. After that, ask ... Read More
In this article, we will calculate the number of minutes between two-time instants using Java. This will be done by using the Instant and Duration classes from the java.time package. We'll create two instances of time, add specific hours and minutes to one of them, and then compute the difference in minutes between the two.Steps to get minutes between two-time instantsFollowing are the steps to get minutes between two-time instants −First, import the necessary classes: Duration, Instant, and ChronoUnit from the java.time package.Create an instance of the current time using Instant.now().Add 5 hours and 10 minutes to the first time instance to ... Read More
In this article, we will learn to get date for all the days of the current week using Java. We will use the java.time package to get the current date and calculate the dates for the rest of the week based on the current day. Steps to get date for all the days of the current week Following are the steps to get date for all the days of the current week − First we will import the DayOfWeek and LocalDate from java.time and Arrays class from java.util. We will get the current ... Read More
In this article, we will learn to display a table with columns in the output using Formatter in Java. The table will have headings and show different calculations of an array of floating-point numbers. The first column will display the original number, the second will display the number rounded up, and the third will display the number rounded down. Problem Statement Write a Java program to display a table with columns in the output using Formatter. Input double arr[] = { 1.7, 2.5, 3.1, 4.5, 5.7, 6.9, 7.7, 8.9, 9.1 }; Output The point list... Points1 Points2 Points3 1.70 2.00 1.00 2.50 ... Read More
In this article, we are going to see how to display Floyd’s Triangle using Java. Floyd's triangle is a popular right-angled triangular array consisting of natural numbers. It is formed by starting with the number 1 at the top of the triangle, and then incrementing each subsequent number by 1 as you move down the rows of the triangle. The first row contains only 1 number which is 1 itself and each subsequent row contains 1 more number than the previous row. The triangle has n rows where n can be any positive whole number. The total number of values in ... Read More
In this article, we will fill elements in a char array using Java. We will be using the Arrays.fill() method to fill it with a specific character. This method allows us to assign a single character value to all elements in the array. We will fill the array with the character 'A' and then print the array using Arrays.toString() to display its contents in a readable format. Problem Statement Write a Java program to fill elements in a char array − Input charValue = 'A' Output The char array content is: [A, A, A, A, A] Steps to fill elements in a ... Read More