WGU C839 Introduction to Cryptography (C839)

C839 - Pre-Assessment: Introduction to Cryptography. Exam Questions and answers, rated A+ Which encryption standard uses the same key to encrypt and decrypt messages? - Symmetric Key Encryption Which algorithm is designated as a Type 2 product by the National Security Agency (NSA)? - SKIPJACK What is the most commonly used format for certificates? - X.509 v3 *Version 3* What is referenced to determine if a certificate has been revoked? - Certificate Revocation List *(CRL)* What ...

Introduction to Cryptography - C839, Exam Questions and answers, rated A+ Cryptography - -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...

Messages are encrypted using different secrets, and the analyst compares the messages to figure out how the algorithm works. - ANSWER Which technique does related-key cryptanalysis use to decipher a message? Steganography - ANSWER Which type of cryptography is being used when the author uses secret inks? Payload - ANSWER What is the hidden message in a steganographic communication? By substituting each letter for the letter from the opposite end of the alphabet (i.e. A becomes Z, B become...

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...