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- The Reflection algorithm can be used to encrypt a C-string (character array terminated with the null character) before it is transmitted over the Internet. The Reflection algorithm works as follows: Each letter in the message is converted to the letter in that is 13 positions to the right of that letter in the English alphabet. If the end of the alphabet is reached, counting continues from the first letter in the alphabet. The case of the letters must be maintained. For example,'M' →'Z', 'x' → 'k', 'A' → 'N'The numeric characters ('0' to '9') are shifted 5 positions to the right of that number in the character set '0' to '9'. If ‘9’ is reached, counting continues from ‘0’. For example,'0' → '5', '2' →'7', '8' → '3' All other characters are left as they are. a) What would the following string be encrypted to by the Reflection algorithm?“Call me at 662-2002 Ext 85393” b) Write a function, getPosition, which finds the position of a letter in the alphabet regardless of the case of the…Encrypt Caesar cipher is a kind of substitution cipher. Instead of using a substitution table, the alphabets are rotated by a number (a key). For example, if the key is 3, plaintext alphabet a would become d, and plaintext alphabet z would become c. Write a program that implements the Caesar Cipher. You program will first prompt for the key and then for the mode (E for encryption and D for decryption) and finally for the message to be encrypted / decrypted. Your program will then output the encryption / decryption message. For this question, the input message may consists of any character, the program should encrypt or small letter case a to z only. All other characters should be kept intact after encryption or decryption.Introductory: The Caesar Cipher technique is one of the earliest and simplest methods of encryption techniques. It is simply a type of substitution cipher, i.e., each letter of a given text is replaced by a letter some fixed number of positions down the alphabet. For example, with a shift of 1, A would be replaced by B, B would become C, and so on. The method is apparently named after Julius Caesar, who apparently used it to communicate with his officials. Thus, to cipher a given text we need an integer value, known as a shift which indicates the number of positions each letter of the text has been moved down. The encryption can be represented using modular arithmetic by first transforming the letters into numbers, according to the scheme, A = 0, B = 1 ,…, Z = 25. Encryption of a letter by a shift n can be described mathematically as. En(x) = (x+n) mod 26 (Encryption Phase with shift n) Write an algorithm and implement a program in C to read the data from a file (called…
- Example 2 Enter message to be encrypted: Dèyè mòn, gen mòn. Enter step size: -1 ORIGINAL MESSAGE Dèyè mòn, gen mòn. ENCRYPTED MESSAGE Cçxç lim, fdm lim. Enter message to be encrypted: Dèyè mòn, gen mòn. Enter step size: 0 ORIGINAL MESSAGE Dèyè mòn, gen mòn. ENCRYPTED MESSAGE Dèyè mòn, gen mòn. Enter message to be encrypted: QUIT Example 3 Enter message to be encrypted: Perfer et obdura, dolor hic tib: proderit olim. Enter step size: 8 ORIGINAL MESSAGE Perfer et obdura, dolor hic tibi proderit olim. ENCRYPTED MESSAGE Xmznmz m| wjl)zi, lwtwz pąk |qją xzwlmzą| wtqu. Enter message to be encrypted: QUITPython The Dan Cipher works like this: shift the first lowercase character to the right by 1, the second lowercase character to the right by 2, and so on. Characters that are not lowercase characters are not changed. Write a program that takes a string and prints the result of applying the Dan Cipher.Complete the function encrypt, which takes an unencrypted, plaintext message called plaintext and encrypts it according to the following algorithm. The function then returns the encrypted ciphertext message. 1. Using a for-loop, swap the character at each even-indexed position with the one to its right. (Examples: abcdefg becomes badcfe; abcdefg becomes badcfeg) You'll have to carefully accomodate for even-lengthed and odd-lengthed strings. 2. Then, using another for-loop, replace every uppercase letter with its lowercase equivalent, and replace every lowercase letter with its uppercase equivalent. 3. (May be combined with the loop in the previous step in the code.) Except for the character o, replace each digit character with 10 minus that digit. (Examples: 2 becomes 8, 9 becomes 1.) Hint: use ord and/or chr and/or str and/or int instead of a 10-way if- statement! Examples: Function Call encrypt('abCDefGHIJKLMnopQ') encrypt('ABCdefGHIjkL') encrypt('0123456789') encrypt('123456789')…
- please code in python Implement an encryption function that tests that input 0xADE1 yields ciphertext (188, 153). You may hard-code these values for testing. Do NOT use ANY string/character manipulation or arithmetic functions to implement your solution.Computer Science Implement RSA encryption and decryption functions in Java. Note you should not use any existing security modules to perform the encryption/decryption tasks. Just write a program to compute the answers. Your program should ask user’s input for a public key (n, e), and for Q1 ask for m and display c; and ask for c and display private key d and original message m.C programming Implement an encoder. When completed, your program should be able to accept a short sentence from the user and display an encrypted version of it. For simplicity, let us assume one case of letters throughout, say CAPITALS. We can use a substitution method to scramble a sentence and then use the reverse of this process to recover it. If we take two rows of the alphabet and shift the bottom row along a specified amount (our key), we can then read the letters in our sentence from the top row and use the substituted letter from the bottom row to form the encrypted sentence. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z X Y Z A B C D E F G H I J K L M N O P Q R S T U V W In the example above, the key is 3, hence the second row is shifted by three characters along. Take, for instance, the sentence “HELLO”. Each letter of your message should be replaced by the letter in the alphabet that comes three letters before. For “HELLO” that would be: EBIIL Your program is required…
- Can this be written in C programming and using strings and loops. Also can there be clear and concise comments? Implement an encoder. When completed, your program should be able to accept a short sentence from the user and display an encrypted version of it. For simplicity, let us assume one case of letters throughout, say CAPITALS. We can use a substitution method to scramble a sentence and then use the reverse of this process to recover it. If we take two rows of the alphabet and shift the bottom row along a specified amount (our key), we can then read the letters in our sentence from the top row and use the substituted letter from the bottom row to form the encrypted sentence. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z X Y Z A B C D E F G H I J K L M N O P Q R S T U V W In the example above, the key is 3, hence the second row is shifted by three characters along. Take, for instance, the sentence “HELLO”. Each letter of your message should be replaced by the letter in the…Write a code in Java programming You are working in a company, and your new task is creating an encoding algorithm to secure a given data. Given a code, write a method called encode() that takes a String and returns a new String based on the frequency of the characters. All the even-frequency characters should be placed before the odd-frequency characters, and finally, all characters should be sorted in increasing order. Your colleague is sick again, and he cannot finish his task. He gave you an unfinished code like the following: public static String encode(String code) { // MyFunction mf = // TODO return mf.encode(code); } Your job is to complete the implementation of the functional interface MyFunction that encode() method should use to encode the given String code. The MyFunction interface should have the following signature: interface MyFunction { String encode(String code); } Additionally, your algorithm should handle the following cases: 1. If the input String is null, the…The Problem The Mastermind game board game is a code breaking game with two players. One player (your program) becomes the codemaker, the other the codebreaker. The codemaker (your program) creates a 4 digit secret code which is randomly generated by the supplied code below and the codebreaker tries to guess the 4 digit pattern. import randomsecretCode =[]for i in range (0,4): n = random.randint(1,9) secretCode.append(str(n)) print (secretCode) # take this out when you are playing the game for real because it is a secret The secret code pattern generated above will consist of any of the digits 1-9 and can contain multiples of the same digit. Your program should then tells the codebreaker which digits should be in their guess by displaying a sorted list of the digit characters contained in the secret code python list . Use the loopfor digit in sorted(secretCode): #display each digit on the same line for the player to see; there could be duplicate digits in the secret Prompt…