In the case of a rotation by 3, w, x, y and z would map to z, a, b and c. py","path":"3D Surface Area. YASH PAL March 31, 2021. 1 function caesarCipher (s, k) {2 const lowerA = "abcdefghijklmnopqrstuvwxyz" 3 const upperA = lowerA. This blog helps in understanding underlying javascript concepts, problems, competitive programming and javascript related frameworks. For example, if your string is "bcbc", you can either remove 'b' at index or 'c' at index . As the sun rose over the ancient city of Rome, Julius Caesar sat at his desk, pondering the safety of his messages. My HackerRank solutions. Contribute to mboukhlouf/HackerRank development by creating an account on GitHub. Create a return array where for. This form of solution. Sign up. In this HackerRank Super Reduced String problem, you need to Reduce a string of lowercase characters in range ascii [‘a’. If the shift takes you past the end of the alphabet, just rotate back to the front of the alphabet. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/Strings":{"items":[{"name":"Anagram. For each digit in "n" that is a 0, we can have the corresponding digit. Caesar's cipher shifts each letter by a number of letters. java","path":"Algorithms/Strings/Super. Problem solution in Python programming. So this optimization attempt might very well make the solution as a whole slower. In the case of a rotation by 3, w, x, y and z would map to z, a, b and c. In this post, we will solve HackerRank Mars Exploration Problem Solution. . 1. Julius Caesar protected his confidential information by encrypting it using a cipher. YASH PAL July 23, 2021. C++ Caesar. It is a simple form of polyalphabetic substitution. Decryption: recovering the original. HackerRank Electronics Shop problem solution. Implement a simple shift cipher like Caesar and a more secure substitution cipher. Hey guys I'm starting to learn C, and I was asked to code a program specifically, a caesar cipher (so, the idea is to replace any letter in the message by a letter three positions down the alphabet. If your program is executed without any. 114k 19 181 268. First Approach Implementation. Problem: Caesar Cipher Source :HackerRank Question: Julius Caesar protected his confidential information by encrypting it in a cipher. Encrypt a string by rotating the alphabets by a fixed value in the string. e. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Problem Solving":{"items":[{"name":"1D Arrays in C. What Is Cadworx? Answer:HackerRank Weighted Uniform Strings problem solution. Check if incoming character is letter. py at master · ynyeh0221/HackerRankIn this HackerRank Tower Breakers problem solution, Two players are playing a game of Tower Breakers! Player 1 always moves first, and both players always play optimally. YASH PAL March 13, 2021. For example, consider the following grid:Substitution Cipher by Frequency Analysis; Ex 1. Your program must. Sort the array's elements in non-decreasing, or ascending order of their integer values and return the sorted array. Example 1 : array = [1, 1, 0, -1, -1] There are N = 5 elements, two positive, two negative and one zero. find(a[c]) + k >= len(b) and a[c]. Caesar Cipher – Hackerrank Challenge – C# Solution Baskar Karunanithi 6th June 2021 Leave a Comment This is the c# solution for the Hackerrank problem – Caesar Cipher – Hackerrank Challenge – C# Solution. In this HackerRank Alternating Characters Interview preparation kit problem You are given a string containing characters A and B only. The order below is the order that I solved them, from oldest (top) to most recent (bottom). Day 15: Linked List HackerRank Solution; Day 14: Scope HackerRank Solution; Day 13: Abstract Classes HackerRank Solution; Day 12: Inheritance HackerRank Solution; Day 11: 2D Arrays HackerRank Solution; Day 10: Binary. encryptedWord. Solution: JavaScript. ascii_letters e = "" for c in range(len(a)): if b. Caesar Cipher example. In a shift cipher the meanings of the letters are shifted by some set amount. In this HackerRank Game of Stones problem solution we have given the starting number of stones, find and print the name of the winner. 3)The Program made in C language can be made to run on different machine thus increasing the efficiency of the program. Thanks to this exploration of the Caesar Cipher, we now understand the three key aspects of data encryption: Encryption: scrambling the data according to a secret key (in this case, the alphabet shift). They always turn pages one at a time. Problem solution in Python programming. you need to find and print the. YASH PAL May 09, 2021. Given the string she typed, can you find the minimum number of characters she must add to make her password. py. Kata Instructions: The function caesarCipher should take a string and a number (n) and return a new string with a Caesar cipher applied. or just use a Caesar Cipher algorithm with the appropriate key. Solution this involves converting a string into the Caesar cipher with k shifts. Caesar's cipher shifts each letter by a number of letters. we need to change the number of books on the shelves in the library. Plain text is encrypted using this encryption method so that only the intended recipient can decipher it. Solutions to HackerRank problems. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Solutions/HackerRank":{"items":[{"name":"Array Manipulation. 1 source coding 3 2 Caesar Cipher 4 3 Ciphertext-only Attack 5 4 Classification of Cryptosystems- Network Nodes 6 5 Properties of modulo Operation 10 6 Vernam Cipher 11 7 Public-Key Algorithms 14 8 Double Encryption 15 9 Vigenere Cipher and Transposition 16 10 Permutation Cipher 20 11HackerRank Quicksort 1 - Partition problem solution. Currently Solved Solutions. Improve this answer. Simple solution with clear explanation. 25. strip ()) p = int (input (). The characters present in are a, b, e, and f. findall () & Re. Over the course of the next few (actually many) days, I will be posting the solutions to previous Hacker Rank challenges. Codewars solutions. E (x) = (x+n)mod27. Hello Friends In this Tutorial We are going to crack our next Hackerrank Algorithm Problem of String section is Caesar Cipher. With shift = 3 the letter A becomes D. Solution Create a function for encrypting which takes a cipher shift as parameter as well. King Robert learns of this conspiracy from Raven and plans to lock the single door through which the enemy can enter his kingdom. Next line contains space separated integer where th integer denotes node[i]. py","contentType":"file. Solution : JavaScript. In this HackerRank Diagonal Difference problem solution Given a square matrix, calculate the absolute difference between the sums of its diagonals. Discussions. Solution. Complete the function in the editor below, which has parameter: a pointer to the root of a binary tree. 1. This made the string unreadable by the enemy. Given the signal received by Earth as a string, , determine how many letters of the SOS message have been changed by radiation. 82 - Caesar Cipher | Strings | Hackerrank Solution | Python. index ( char . We can use string's length property instead. Each of the columns is XOR ed together to get the final encoded. Learn how to encrypt a string by rotating the alphabets by a fixed value in the string using the Caesar Cipher problem on HackerRank. Skip to content Toggle navigation. I'm very new to Java, and I'm still trying to understand the basics. Code directly from our platform, which supports over 30 languages. You can find me on hackerrank here. Since then, cryptologists have invented many more symmetric encryption techniques, including the ones used today to. md","contentType":"file"},{"name":"acm icpc team. Whoever reduces the number to wins the game. Caesar Cipher is one of the most well-known and straightforward encryption methods in cryptography. Relationship to Affine: Atbash cipher can be thought of as a special case of. Your task is to find what the day is on that date. Jack and Daniel are friends. Caesar Cipher | Hackerrank Solution | Problem Solving | Python Xor Function Solution - Applied Cryptography RSA Algorithm With Example / Cryptography / Easy way to learn RSA Algorithm Ethical. In this HackerRank Balanced Brackets Interview preparation kit problem you have Given n strings of brackets, determine whether each sequence of brackets is balanced. The function converts the plaintext to lowercase. Notice that the length of the words could give an important clue to the cipher shift used. Contribute to mboukhlouf/HackerRank development by creating an account on GitHub. Julius Caesar protected his confidential information by encrypting it using a cipher. By pressing Ctrl +Shift + N, you will get your “New Project” window. Contribute to srgnk/HackerRank development by creating an account on GitHub. linkedin channel link: / caesar. 1. . Enter the shift value : 2. Hackerrank - Grid Challenge Solution. We will implement a simple algorithm with different approaches to implement Caesar cipher. fromCharCode (. cpp","path":"Algorithms/Greedy/Algorithmic Crush. {"payload":{"allShortcutsEnabled":false,"fileTree":{"caesar-cipher-1":{"items":[{"name":"Solution. Problem Link - Encrypt a string by rotating the alphabets by a fixed value in the string. Does a += which will bog the computer down for bodies of text longer than a few thousand characters. 30. Complete the breakingRecords function in the editor below. We would like to show you a description here but the site won’t allow us. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Interview Preparation Kit","path":"Interview Preparation Kit","contentType":"directory. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"3D surface area hackerrank","path":"3D surface area hackerrank","contentType":"file"},{"name. This video explains about the hackerrank problem Caesar Cipher. In this HackerRank Funny String, problem Determine whether a given string is funny. Every message is encoded to its binary representation. This cryptosystem is generally referred to as the Shift Cipher. In each operation, select a pair of adjacent letters that match, and delete them. YASH PAL April 18, 2021. length (); for (int i = 0; i < len; ++i) { if (65 <= str [i] && str [i] <= 90) str [i] = char (65 + ( (str [i] - 65. Learn how to solve the Caesar's Cipher problem from the HackerRank challenges with JavaScript. Find a solution for other domains and Sub-domain. An operator is any symbol like a plus sign, subtract sign, multiply sign, divide sign etc. Short Problem. In this Hackerrank Insertion Sort - Part 1 problem we have given a sorted list and an unsorted number in the right cell or list, we need to insert the integer number inside the list and it needs to be remains sorted. In this HackerRank Library Fine problem you have Given the expected and actual return dates for a library book, create a program that calculates the fine. In this HackerRank Separate the Numbers, problem For each query, print whether or not the string is beautiful on a new line. HackerRank Caesar Cipher Solution Task. Delete as many characters as possible using this method and return the resulting string. In the next second, the timer resets to 2 x the initial number for the prior cycle and continues counting down. isupper(): a[c] = b. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Contest Prime asis","path":"Contest Prime asis","contentType":"directory"},{"name":"Java. Encrypt a string by rotating the alphabets by a fixed value in the string. To make sure there are no. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"3D Surface Area. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/Strings/Caesar Cipher":{"items":[{"name":"Solution. Problem Definition: Julius Caesar protected his confidential information from his enemies by encrypting it. 2 - Breaking a Caesar/Shift Cipher by Frequency AnalysisUnderstanding Cryptography by Christof Paar and Jan Pelzl. Caesar's cipher shifts each letter by a number of letters. Given price-lists for keyboards and USB drives and a budget, find the cost to buy them. Caesar Cipher. 00. If you want solution of any specific HackerRank. split())) k2 = input() c2 = Counter(map(int, input(). Step 1 "If he had anything confidential to say, he wrote it in cipher, that is, by so changing the order of the letters of the alphabet, that not a word could be made out. I've been working a piece of code to encrypt a message using the Caesar Cipher. 0. By Solution. and we need to print the values of trees in postorder in a. Space Complexity: O (n) //we need to store the entire input text in memory to. Original alphabet. Everything will be written in ES6. java","path":"Algorithms/Strings/Caesar Cipher. If rows*columns < L, then increase. 100 HackerRank Solution in Order. c. Ask Question. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"3D surface area hackerrank","path":"3D surface area hackerrank","contentType":"file"},{"name. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Problem Solving":{"items":[{"name":"1D Arrays in C. Definition: Atbash cipher is a substitution cipher with just one specific key where all the letters are reversed that is A to Z and Z to A. The contest creator holds HackerRank harmless from and against any and all claims, losses, damages, costs, awards, settlements, orders, or fines. Cryptanalysis of the Caesar Cipher. Julius Caesar protected his confidential information by encrypting it using a cipher. x is the original letter. Quicksort 2 - Sorting HackerRank Solution. The Solutions are provided in 5 languages i. In this Hackerrank Beautiful Binary String problem, we have given a string and we need to determine a minimum number of steps needed to make a string beautiful by changing 0 to 1 and 1 to 0. HackerRank Diagonal Difference problem solution. For example, if Alice’s string is b=010 she can change any one. This means that must consist of two of those characters and we must delete two others. HackerRank Maximum Element problem solution. java","contentType":"file. In this HackerRank Greedy Florist interview preparation kit problem, you need to Complete the getMinimumCost function in the editor. Problem Solving. Given a string,S, and a number, K, encrypt S. ’z’] by doing a series of operations. This package provides simple functions to encrypt and decrypt text using a. It must return the height of a binary tree as an integer. Easy Problem Solving. Caesar Cipher: caesar-cipher-1. strip ()) # your code goes here page_in_book = p//2 total_pages = n//2 from_front = page_in_book from_back = total_pages - page_in_book print (min (from_front,from_back)) HackerRank Drawing Book problem solution in Python. cs]. This is a pythonesque solution by Jay Mistry. Hackerrank - Game of Thrones - I Solution. The first line of input contains , the number of elements in the linked list. java","contentType":"file. " GitHub is where people build software. Hackerrank Tree: Inorder Traversal problem solution. charCodeAt () + shift)), ); }; Btw, 65 and 95. Let’s call it. Home; About; Contact;. Concatenate k 2 and x, where k 2 is 2nd secret key (shared). 1 min read · Aug 28, 2019--Jayram Manale. Right now I have one loop that checks to see if the value sitting at an idx got there by bribing someone and determining if it was once, twice, or. Hackerrank Introduction Solutions In this sub-domain, we are going to solve the Introduction hackerrank solutions in the C++ programming language. Use the Caesar cipher with shift of 3 to encrypt the message: “We ride at noon”. Most Important Frequently Asked Barista Interview Questions . . They are not fully pastable into the hackerrank solutions terminal, but most have a function that is. 00 phtsanov 01 100. We will create an object with decoded letter for every alphabet. The Vigenre cipher is a method of encrypting alphabetic text by using a series of different Caesar ciphers based on the letters of a keyword. cs","path":"Algorithms/Strings/Caesar Cipher. This is the c# solution for the Hackerrank problem – Caesar Cipher. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"3D surface area hackerrank","path":"3D surface area hackerrank","contentType":"file"},{"name. Read the plain text written in step 1 as sequence of rows. py","path":"Algorithms/Strings/alternating. It is a mono-alphabetic cipher wherein each letter of the plaintext is substituted by another letter to form the ciphertext. Restrictions: Only works with a positive number in the shift parameter. The alternative that I'm proposing to your example is. Caesar's cipher shifts each letter by a number of letters. Hackerrank – Caesar Cipher. It’s simply a type of substitution cipher, i. Reactive Resume is a free and open source resume builder that's built to make the mundane tasks of creating, updating and sharing your resume as easy as 1, 2, 3. from collections import Counter k1 = input() c1 = Counter(map(int, input(). In this algorithm, each letter of the Plaintext is shifted a number of positions based on the Key provided. Caesar's cipher shifts each letter by a number of letters. 3. py","path":"algorithms/3d-surface-area. The right to left diagonal = 3+5+9=17. Sign up now to get access to the library of. In the previous challenge, you wrote a partition method to split an array into two sub-arrays, one containing smaller elements and one containing larger elements than a given number. The shift distance is chosen by a number called the offset, which can be right (A to B) or left (B to A). Don’t miss out on the latest issues. HackerRank Angular (Basic) Skills Certification Test Solution. where x is the value of the original letter in the alphabet’s order, n is the value of the shift and 26 is the number of letters in the. Strings":{"items":[{"name":"001. Ignore case. Caesar Cipher: Encryption. You are given a date. Baskar Karunanithi 6th June 2021 Leave a Comment. HackerRank Greedy Florist Interview preparation kit solution. S. // number of times, then (x ^ x. This repository contains solutions to coding challenges from websites like Hackerrank, Coderbyte, etc. . I JustWriteTheCode of the solution to the "Caesar Cipher" problem present on HackerRank (1 Week Preparation Kit - Day 3). Learn from examples, projects, and coding challenges. Source – Ryan Fehr’s repository. Given an array of strings of digits, try to find the occurrence of a given pattern of digits. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python, SQL, JavaScript) and span multiple computer science domains. Our choices for characters to leave are [a,b], [a,e], [a, f], [b, e], [b, f] and [e, f]. n is the Key. If the condition is True then it is not possible for the two Kangaroos to be at the same location at the same time and hence we return ‘NO’. Kata Instructions: The function caesarCipher should take a string and a number (n) and return a new string with a Caesar cipher applied. It works by shifting the letters in the plaintext message by a certain number of positions, known as the “shift” or “key”. if you need help, comment with your queries and questions in the comment section on particular problem solutions. If the shift takes you past the end of the alphabet, just rotate back to the front of the alphabet. import string . These are the local files I have used to complete the solutions. The input integer should be between 0-25. 59%. It works by shifting the letters in the plaintext message by a certain number of positions, known as the “shift” or “key”. // we do this to get back the counting start from starting after alphabet is complete. One being the phrase, and the next being the shift of the letters. February 2016 Pavol Pidanič No Comments. HackerRank Separate the Numbers problem solution. HackerRank Calendar Module problem solution in python. Explanation 1. simple Haskell solution import Control. Problem:Ju. HackerRank Two Characters problem solution. So, let’s say we have a message encrypted with an offset of 3. This will inevitably result in a win for player two, since they will always have a move available to them with that strategy. Caesar's cipher shifts each letter by a number of letters. I've tried to keep it simple. This editorial requires unlocking. I have taken HackerRank test on 8rd June 2022. An alternative is to treat all characters in the same way, so not only does a become b, but µ becomes ¶ and you wrap around at U+10FFFF (the highest codepoint in Unicode). In the last blog we studied assignment and conditional operators but today we will discuss one of the most important operators that are increment and decrement operators. YASH PAL May 08, 2021. Given a square grid of characters in the range ascii [a-z], rearrange elements of each row alphabetically, ascending. HackerRank’s helpful tidbit on how Caesar’s cipher works was enough to get me started on the problem at hand. 7. 4k forks. Encrypt a string by rotating the alphabets by a fixed value in the string. Easy Problem Solving (Basic) Max Score: 15 Success Rate: 93. P. 1 Answer. N represents the number of shifts up or down the alphabet should be applied. The first line contains an integer , the number of nodes in the tree. If the shift takes you past the end of the alphabet, just rotate back to the front of the alphabet. 5 of 6; Submit to see results When you're ready, submit your solution! Remember, you can go back and refine your code anytime. Can you just help me please? – Lorenzo Orlando. Usually cipher text is base64 encoded, base16 (hex) also works well. java","path":"hackerrank/Algorithmic_Crush. Save the Prisoner! HackerRank in a String!{"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/Strings/Caesar Cipher Encryption":{"items":[{"name":"Solution. Otherwise, return the index of a character to remove. If it is, return Funny, otherwise, return Not Funny. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Problem Solving-Algorithms/Strings":{"items":[{"name":"Alternating Characters. Step 1. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Problem Solving-Algorithms/Strings":{"items":[{"name":"Alternating Characters. The data on which an operator is applied is known as an operand. it has the following parameter (s): int n: the number of socks in the pile. In this HackerRank Encryption problem, An English text needs to be encrypted using the following encryption scheme. I'm working on a HackerRank problem. Easy Problem Solving (Basic) Max Score: 15 Success Rate: 86. HackerRank Balanced Brackets Interview preparation kit solution. Language is a collection of valid syntax and rule. In this HackerRank Calendar Module problem solution in python, The calendar module allows you to output calendars and provides additional useful functions for them. Yes- it is important to be thorough while being efficient. #include <iostream> #include <string> using namespace std; int main () { int N = 0, K = 0; string str, dummy; cin >> N; getline (cin, dummy); getline (cin, str); cin >> K; int len = str. The Caesar_Cipher function is a Python implementation of the Caesar cipher algorithm. We use cookies to ensure you have the best browsing experience on our website. Day #96of #100daysofcodechallenge Learned: <<<Caesar Cipher(hackerrank solution)>>> Code: Thanks Shriram R sir ,Dr. February 2016 Pavol Pidanič No Comments. 4 of 6; Test your code You can compile your code and test it for errors and accuracy before submitting. Problem Statement A description of the problem can be found on Hackerrank. security. Each of the columns is XOR ed together to get the final encoded. cs","path":"Algorithms/Strings/Two Characters. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/03. E (x) = (x+n)mod27. A Caesar cipher replaces each plaintext letter with a different one a fixed number of places up or down the alphabet. and in the case of a rotation by 3, w, x, y, and z would map to z, a, b and c. Interview Coding Problems: #5 Caesar. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/Strings":{"items":[{"name":"Anagram. Example. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/Strings/Strong Password":{"items":[{"name":"Solution. In this HackerRank Mars Exploration problem, you have Given the signal received by Earth as a string, determine how many letters of the SOS message have been changed by the radiation. My solution to CS50 pset2 - "Hail, Caesar!" * A program that encrypts messages using Caesar’s cipher. The Grid Search HackerRank Solution in C, C++, Java, Python. Programming Language: C++. Encrypt a string by rotating the alphabets by a fixed value in the string. If the shift takes you past the end of the alphabet, just rotate back to the front of the alphabet. This means you 'sorted' half the array with respect to the other half. YASH PAL March 13, 2021. Determine the longest string possible that contains just two. We use the mapping above to replace each letter. Instead of calculating the subarrays directly, // we calculate the number of times each number appears in any subarray. Explanation in Python 3. HackerRank Re. python commandline solutions python3 hackerrank hackerrank-solutions coderbyte pdp stock-picker html-dom-element coderbyte-solutions letter-count seating-students dam-design min-difference string-challenge arrayadditioniYou used bitwise operators for testing the bits or shifting the bit right or left. If we have a string “abc” and we wanted to encrypt it by shifting each letter 5 positions, the new string would be “fgh. If the shift takes you past the end of the alphabet, just rotate back to the front of the alphabet. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/Strings":{"items":[{"name":"alternating-characters. HackerRank Caesar Cipher Solution Task. Hackerrank - Caesar Cipher Solution Julius Caesar protected his confidential information by encrypting it using a cipher. February 2016 Pavol Pidanič No Comments. It is not very efficient to try to delete each character and then check whether that is a palindrome. The Caesar Cipher is one of the simplest symmetric encryption techniques, and of course, one of the easiest to crack. Suppose after bribing, we have the line like this [1 2 5 3 7 8 6 4], we have to find the minimum number of bribes that took place to get our line to the. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/Implementation":{"items":[{"name":"two-kings","path":"Algorithms/Implementation/two-kings. 2 Questions are asked,, provided the solution also: Programs. end () problem solution. ) My implementation should read a line of text and then either performs encryption or decryption, depending on the first character read. In the last blog, we studied 'if' statement. Note: The cipher only encrypts letters; symbols, such. HackerRank 'Strong Password' Solution. {"payload":{"allShortcutsEnabled":false,"fileTree":{"Algorithms/Game Theory/Tower Breakers":{"items":[{"name":"Solution. , other users in their network are able to view this new post on their news feed. Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. Caesar Cipher in Cryptography. If a string is balanced, return YES. ”. The Caesar cipher (or Caesar code) is a monoalphabetic substitution cipher, where each letter is replaced by another letter located a little further in the alphabet (therefore shifted but always the same for given cipher message). Caesar's cipher rotated every letter in a string by a fixed number, , making it unreadable by his enemies. In this HackerRank Time Delta problem solution in python, When users post an update on social media,such as a URL, image, status update etc. php","path":"Algorithm/Implementation/1-angry. The left-to-right diagonal = 1+5+9 = 15. The alternative that I'm proposing to your example is just a particular usage of a regular Caesar Cipher algorithm – a very simple form of encryption, in which each letter in the original message is shifted to the left or right by. P1 is named First and P2 is named Second. Category. DURATION.