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WGU Course C839 - Intro to Cryptography Questions Correctly Answered 2023 GRADED A 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...

Electronic Code Book (ECB) - Answer Block 1 encrypted = Cipher 1, Block 2 encrypted = Cipher 2 Cipher Block Chaining (CBC) - Answer IV XOR Block 1 = Cipher text 1, Cipher Text 1 XOR Block 2 = Cipher text 2. Cipher Feedback (CFB) - Answer IV encrypted XOR Block 1 = Cipher 1, Cipher 1 XOR Block 2 = Cipher 2 Output Feedback (OFB) - Answer IV encrypted XOR Block 1 = Cipher 1, Cipher 1 encrypted XOR Block 2 = Cipher 2 Counter Mode (CTR) - Answer Nonce encrypted XOR Block 1 ...

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...

WGU C839 Introduction to Cryptography: Exam Questions With Answers 2023-2024 Graded A+ | 100% Correct. What is the outcome when using the binary AND function on 11011 and 10100? Counter (CTR) - ANSWER Which mode does the Fortuna algorithm use to generate random numbers? Same state used more than once - ANSWER What is a potential weakness of a pseudo-random number generator (PRNG)? Recipient's private key to decrypt and sender's public key to verify the signature - ANSWER Which key combi...

EC Council - Certified Encryption Specialist Latest 2023 Graded A DSA FIPS 186 AES FIPS 197 MD5 RFC1321 GOST GOST Block Ciphers Examples include: AES, TwoFish, Serpent, Skipjack, DES, 3DES Stream Ciphers Examples include: RC4, FISH, Pike Hash Functions Examples include: MD5, MD6, SHA-1, SHA-2, SHA-3, FORK-256, RIPEMD-160, GOST, TIGER Asymmetric cryptography Also called public key cryptography Symmetric Stream Cipher Also called State Ciphers Symmetric cryptography Single private key us...

ECES-Practice Test Questions and Answers 100% Pass What type of encryption uses different keys to encrypt and decrypt the message? Asymmetric The most widely used asymmetric encryption algorithim is what? RSA Original, unencrypted information is referred to as ____. Plaintext Which of the following is not an asymmetric system? DES In order for User A to send User B an encrypted message that only User B can read, User A must encrypt message with which of the following keys? User B's public ...

WGU C839 - Introduction to Cryptography| 190 QUESTIONS| WITH COMPLETE SOLUTIONS. Serpent CORRECT ANSWERS: Symmetric Block Cipher Block Size: 128 bits Key Size: 128, 192, or 256 bits Rounds: 32 Network: Substitution-Permutation Tiny Encryption Algorithm (TEA) CORRECT ANSWERS: Symmetric Block Cipher Block Size: 64 bits Key Size: 128 bits Cryptography CORRECT ANSWERS: Deciphering secret writings, kryptos means hidden and grafo means write. Must not be readable by interlopers over secure/h...

A process that puts a message into the least significant bits of a binary file is called what? A Symmetric cryptography B Masking C Steganography D Asymmetric cryptography - Answer C If you wished to see a list of revoked certificates from a CA, where would you look? A CRL B CA C RFC D RA - Answer A Which of the following is generally true about block ciphers? A Secret block ciphers should be trusted. B Block ciphers permute the bits of the input plaintext. C The plaintext and ciph...

Introduction to Cryptography - C839 - ECES EC-Council Certified Encryption Specialist Practice Exam Already Passed 1. How did the ATBASH cipher work? By substituting each letter for the letter from the opposite end of the alphabet (i.e. Abecomes Z, B becomes Y, etc.) 2. DES has a key space of what? 2^56 3. Which of the following are valid key sizes for AES (choose three)? c. 128 d. 192 e. 256 4. Which of the following algorithms uses three different keys to encrypt the plain text? 3DES Tripl...

WGU C839 - Introduction to Cryptography Actual Exam With 100% Correct Verified AnswerAllows encryption of partial blocks ---------- Correct Answer -------- Cipher Feedback (CFB) Mode Generates keystream blocks that are XORed with the PT blocks Turns block Cipher to stream Cipher ---------- Correct Answer -------- Output Feedback (OFB) Turns block cipher into stream cipher like OFB, It generates the next keystream block by encrypting successive values of a counter ----- ----- Correc...