Atbash - Study guides, Class notes & Summaries
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C839 - INTRODUCTION TO CRYPTOGRAPHY (E/CES STUDY MATERIAL) QUESTIONS AND ANSWERS WITH SOLUTIONS 2025
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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.) 
 
DES has a key space of what? 
 
a. 2^128 
b. 2^192 
c. 2^56 
d. 2^64 - ...
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ECES EXAM TOP POSSIBLE QUESTIONS AND CORRECT ANSWERS 2024
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Which of the following is generally true about key sizes? 
a. Larger key sizes increase security 
b. Smaller key sizes increase security 
c. Key size is irrelevant to security 
d. Key sizes must be more than 256 bits to be secure - a. Larger key sizes increase 
security 
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 t...
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WGU C839 Introduction to Cryptography - (EC-Council CES) Latest 2024
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WGU C839 Introduction to Cryptography - 
(EC-Council CES) Latest 2024 
CrypTool - Answer ️️ -Software which allows encryption of text using historic algorithms 
The Enigma Machine - Answer ️️ -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 - Answer ️️ -invented by Colonel Fritz Nebel in 1918. 
The key for this alg...
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ITN 276 final questions with correct answers
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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 ...
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WGU C839 - Introduction to Cryptography Real Exam With Complete Solutions
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WGU C839 - Introduction to Cryptography 
Real Exam With Complete Solutions 
 
Symmetric Block Cipher 
Block Size: 64 bits 
Key Size: 128 bits ---------- Correct Answer -------- IDEA (International Data Encryption 
Algorithm) 
Symmetric Block Cipher 
Block Size: 64 bit blocks 
Key Size: 40 to 128 bits 
Two versions: 128 and 256 ---------- Correct Answer -------- CAST 128/256 
Symmetric Block Cipher 
Block Size: 128 bits 
Key Size: 128, 192, or 256 bits 
Rounds: 32 
Network: Substitution-Permut...
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C839 Introduction to Cryptography Correct Questions & Answers
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Cryptography - ANSWER The science of altering communication so that it cannot be understood without having the key. 
 
cipher - ANSWER The algorithm(s) needed to encrypt and decrypt a message. 
 
Mono-alphabet substitution - ANSWER Substitute one character of cipher text for each character of plain text. 
 
Caesar cipher - ANSWER Every letter is shifted a fixed number of spaces to the left or the right in the alphabet. 
 
Ciphertext - ANSWER The resultant text after being subjected to the algori...
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EC-Council Certified Encryption Specialist (ECES) Questions and Answers 100% Correct
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EC-Council Certified Encryption Specialist (ECES) Questions and Answers 100% CorrectEC-Council Certified Encryption Specialist (ECES) Questions and Answers 100% CorrectEC-Council Certified Encryption Specialist (ECES) Questions and Answers 100% CorrectEC-Council Certified Encryption Specialist (ECES) Questions and Answers 100% CorrectWhat is cryptography? - ANSWER-Noun - 
A) The process or skill of communicating in or deciphering secret writings or ciphers 
B) Secret writing 
Origin - 
Cryptog...
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Intro to Cryptography WGU C839 Module 1 Already Passed
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Intro to Cryptography WGU C839 Module 1 
Already Passed 
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 - Answer️️ -Mono-Alphabet Substitution 
First used by Julius Caesar 
Every letter is shifted a fixed number of spaces to the left or right the alphabet. - Answer️️ - 
Caesar Cipher 
Hebrew Code 
substitutes the first letter of the alphabet for the...
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WGU C839 - Introduction to Cryptography Actual Exam 100% Correct Answer Symmetric Block Cipher
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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...
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ITI 111: Final Exam Review || with 100% Errorless Answers.
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Which of the following servers translates website addresses between natural language format and number format? correct answers DNS 
 
Which of the following servers assign IP addresses for devices connected to the Internet? correct answers DHCP 
 
Which TWO of the following servers function as hubs that connect different networks? (Two correct answers. Choosing only one of the two correct answers will get you only 1 point for this question.) correct answers - NAT (excluding the default gateway s...
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