Atbash cipher Study guides, Class notes & Summaries

Cryptography - The science of altering communication so that it cannot be understood without having the key. cipher - The algorithm(s) needed to encrypt and decrypt a message. Mono-alphabet substitution - Substitute one character of cipher text for each character of plain text. Caesar cipher - Every letter is shifted a fixed number of spaces to the left or the right in the alphabet. Ciphertext - The resultant text after being subjected to the algorithm and key. Atbash Cipher - Reverses the...

EC-Council Certified Encryption Specialist (ECES) (2022/2023) Already Passed What is cryptography? Noun - A) The process or skill of communicating in or deciphering secret writings or ciphers B) Secret writing Origin - Cryptography (or cryptology); derived from word kryptos which means "hidden", and grafo, which means "write", is the study of message secrecy Definition- Cryptography is the science of altering communication so that it cannot be understood without having the key In...

Certified Encryption Specialist Questions and Answers 100% Pass Cryptography The science of altering communication so that it cannot be understood without having a key. Caesar Cipher Simple cipher that uses shifting letters. Atbash Used by Hebrews, cipher that reverses the alphabet. ROT13 Cipher that rotate or shifts by 13 letters. Scytale Cylinder tool used to encrypt and decrypt plaintext using a cloth or piece of leather wrapped around a rod. Vigenere Cipher Most common multi-alphabe...

yptography - science of altering communication so that it cannot be understood without having the key Mono-Alphabet Substitution - algorithms simply substitute one character of cipher text for each character of plain text. Caesar Cipher - choose a number by which to shift each letter of a text. ATBASH Cipher - Hebrew code substitutes first letter of alphabet for last, second letter for the second-to-the-last ROT13 Cipher - characters rotated 13 characters Scytale - Greek, written across ...

The __________ cipher is a method of encrypting alphabetic text by using a series of different monoalphabetic ciphers selected based on the letters of a keyword. Vigenère ROT13 Atbash Scytale Answer Vigenère A cybercriminal wants to deliver steganized files to covert customers on a third-party cache. What method must be used so that the third party is unaware of these transactions and the customer can access the files? Delivery zone FTK server Dead drops Echo method Answer Dead ...

WGU C839 - Intro to Cryptography Exam 2023-2024 Questions and Answers (VERIFIED). What type of encryption uses different keys to encrypt and decrypt the message? A Symmetric B Private key C Secure D Asymmetric - Answer D The most widely used asymmetric encryption algorithm is what? A RSA B Vigenere C DES D Caesar Cipher - Answer A Original, unencrypted information is referred to as ____. A text B plaintext C cleantext D ciphertext - Answer B Which of the following is NOT an asymm...

. 1. How did the ATBASH cipher work? a. By shifting each letter a certain number of spaces b. By Multi alphabet substitution c. By rotating text a given number of spaces d. By substituting each letter for the letter from the opposite end of the alphabet (i.e. A becomes Z, B becomes Y, etc.)Answer - d. By substituting each letter for the letter from the opposite end of the alphabet (i.e. A becomes Z, B becomes Y, etc.) 1. DES has a key space of what? a. 2128 b. 2192 c. 256 d. 264Answer ...

WGU C839 - Introduction to Cryptography Actual Exam 100% Correct Answer Symmetric Block Cipher Block Size: 128 bits Key Size: 128, 192, or 256 bits Rounds: 32 Network: Substitution-Permutation ---------- Correct Answer -------- Serpent Symmetric Block Cipher Block Size: 64 bits Key Size: 128 bits ---------- Correct Answer -------- Tiny Encryption Algorithm (TEA) Deciphering secret writings, kryptos means hidden and grafo means write. Must not be readable by interlopers over secure/hid...

WGU Introduction to Cryptography - C839 (EC-Council CES), Questions and answers. VERIFIED. CrypTool - -Software which allows encryption of text using historic algorithms The Enigma Machine - -In World War II the Germans made use of an electro-mechanical rotor based cipher Known as The Enigma Machine. Allied cipher machines used in WWII included the British TypeX and the American SIGABA. The ADFGVX Cipher - -invented by Colonel Fritz Nebel in 1918. The key for this algorithm is a s...

WGU C839: Intro to Cryptography Module 1. Questions and answers, VERIFIED. Most primitive of cryptographic algorithms, substitutes one character of cipher text for each character of plain text. Includes Caesar Cipher Atbash Cipher Affine Cipher Rot13 Cipher - -Mono-Alphabet Substitution First used by Julius Caesar Every letter is shifted a fixed number of spaces to the left or right the alphabet. - -Caesar Cipher Hebrew Code substitutes the first letter of the alphabet f...