The feistel function - Study guides, Class notes & Summaries

WGU Course C839: Intro to Cryptography Questions and Answers 2023/2024 | Latest Update Graded A+. This algorithm was published by the German engineering firm Seimans in 1993. It is a software based stream cipher using Lagged Fibonacci generator along with a concept borrowed from the shrinking generator ciphers. A RC4 B Blowfish C FISH D Twofish - Answer C Which of the following is NOT required for a hash? A Minimum key length of 256 bits B Variable-length input, fixed-length output C N...

WGU Course C839 - Intro to Cryptography Questions Correctly Answered!! 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 a...

DES - correct answer Symmetric Block Key size: 56 Block size: 64 Feistel Cipher w/ 16 rounds, 48 bit key for each round. Use of 8 S-boxes 3DES (Triple DES) - correct answer Symmetric Block Key size: 56 Block size: 64 Performs DES function 3 times w/ 3 different keys. DESx - correct answer Variation of DES that employs key whitening. XOR a 64 bit key with the text before the round function, after or both. Advanced Encryption Standard (AES) - correct answer Symmetric Block Key si...

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...

WGU C839 - Intro to Cryptography Exam 2022 completely Solved 100 Q&A GRADED A+ 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 asymmetric system? A PGP B RSA C SSL D DES - Answer D In order for User A to send User B an encrypted message that only User B can read, User A must encrypt...

Security finalAES uses a Feistel structure - correct answer f At each horizontal point, State is the same for both encryption and decryption. - correct answer t DES is a block cipher intended to replace AES for commercial applications. - correct answer f Virtually all encryption algorithms, both conventional and public- key, involve arithmetic operations on integers. - correct answer t Compared to public-key ciphers such as RSA, the structure of AES and most symmetric ciphers i...

WGU Course C839 - Intro to Cryptography Questions and Answers | Latest Update 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 an...

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...

WGU C839 REAL EXAM QUESTIONS AND VERIFIED CORRECT ANSWERS 100% PASS LATEST UPDATE 2023/2024 Original, unencrypted information is referred to as . A text B plaintext C cleantext D ciphertext B Which of the following is NOT an asymmetric system? A PGP B RSA C SSL D DES D 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? A User A's public key B User A's private key C User ...

WGU C839 - Intro to Cryptography with 100% Verified Questions And Answers Which of the following most accurately defines encryption? A changing a message so it can only be easily read by the intended recipient B Making binary changes to a message to conceal it C changing a message using complex mathematics D Applying keys to plain text A What type of encryption uses different keys to encrypt and decrypt the message? A Symmetric B Private key C Secure D Asymmetric D The m...