Show the working of "Data Encryption Standard" using the figure. Suppose your want to encrypt "M=??3456789ABCDEF" (?? stands for last two numeric digits of your roll number taken in hex notation) with your secret key "K=1234352ABC54327E" (HEX NOTATION), then find the output after first round of "Data Encryption Standard". ROLL NO=18

Show the working of "Data Encryption Standard" using the figure. Suppose your want to encrypt "M=??3456789ABCDEF" (?? stands for last two numeric digits of your roll number taken in hex notation) with your secret key "K=1234352ABC54327E" (HEX NOTATION), then find the output after first round of "Data Encryption Standard". ROLL NO=18

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

I need help with the following problems in cryptography. A. Encrypt the message “Freedom” using the Playfair matrix M F H I K U N O P Q Z V W X Y E L A R G D S T B C T B. Construct the Playfair matrix with the keyword “LARGEST” and encrypt the message “Freedom” again. C. Compare the results obtained in A and B. How do you account for these results?
Explain what the following lines of code do pad = len(byteblock)%16 * (-1)byteblock_trimmed = byteblock[64:pad]ciphertext = cipher.encrypt(byteblock_trimmed)ciphertext = byteblock[0:64] + ciphertext + byteblock[pad:]
In order to decode the following messages, you will need to determine the cipher used. All of them have been encrypted using one of the methods we saw in the cryptography lecture. The full key to that lecture is in canvas. Need to name the method used to decipher it and show steps in using that method. Do not hesitate to ask questions in the virtual office hours. 2. SI HT EG AS SE MD LU OH ST ON EB DR AH TA LL AR OF UO YO TE RU GI FT UO. EH TT XE NE CN ET NE SS IN AT EB AH PL AD NA DR OW DE TA LE RR OC RE HP IC.
2. NOT PROGRAMMING!
Encrypt the first 4 letters of your last name as a block of data to be encrypted. (Let A=1, B=2, C=3,...Z=26). Decrypt the encrypted number to demonstrate that your system works. lastname is john
Write the solution in detail:A) Encrypt the following message using poly-alphabetic cipher:Plaintext: “HELLO WORLD”Key:Shift the first letter three positions to its rightShift the second letter five positions to its rightShift the third letter seven-position to its left B) Using the same key, decrypt the following text:Cipher text= “vjv xwb wd”
45. Encrypt the message “success is not final, failure is not fatal” using a columnar transposition cipher for the given keyword “algebra” (1 6 5 4 3 7 2)..
If the shared key is "SECURITY" and the result of DES round 15 is "IT? 7b/," what is the ciphertext?
Decode the number using the given private key. Decode the number M = 15 using the private key d = 53 and n = 77. Assume you are decoding the number using the RSA cryptosystem. Note: You can use the Modular Exponentiation calculator to help with the calculation. a 63 (mod 77), decoded number = 63 b 64 (mod 77), decoded number = 64 C 65 (mod 77), decoded number = 65 d. 66 (mod 77), decoded number = 66
Could you devise a key that when it is used on the ciphertext you produced in 1.a, will provide plaintext relish instead of the strike? the photo below is question 1a and please trying to be as detailed as possible when answering the question, justifying well all your steps that you did.
Suppose your RSA public key is PK: {n, e} = {13861, 37}. Your friend sends you a ciphertext C = 9908. But unfortunately you have forgotten your private key, now you have to crack it yourself.a) Write down a possible condition of factors p and q.p= q=b) What is your private key SK: {d}?d=c) What is the plaintext of your friend’s message?The plaintext M =d) Suppose the plaintext M is a 12-digit number consisting of a prefix “19” and 1234567890. What is the corresponding ciphertext? Since M is greater than n, you only need to encrypt four digits at a time. Ignore redundant zeros. e.g., 0001 = 1. The result should contain three integers.The ciphertext C0 =
Question 8 please do not use a computer system generater I need to see how it's done