Atbash - Study guides, Class notes & Summaries

Certified Encryption Specialist Latest Update October 2024 Cryptography - Answer--The science of altering communication so that it cannot be understood without having a key. Caesar Cipher - Answer--Simple cipher that uses shifting letters. Atbash - Answer--Used by Hebrews, cipher that reverses the alphabet. ROT13 - Answer--Cipher that rotate or shifts by 13 letters. Scytale - Answer--Cylinder tool used to encrypt and decrypt plaintext using a cloth or piece of leather wrapped around a rod. ...

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...

WGU C839 Objective Assessment Study Review (Latest 2024/ 2025 Update) Introduction to Cryptography| Qs & As| Grade A| 100% Correct (Verified Answers) Q: A _____ is a function that takes a variable-size input m and returns a fixed-size string. A Symmetric cipher B Hash C Asymmetric cipher D Feistel Answer: B Q: Which of the following is a cryptographic protocol that allows two parties to establish a shared key over an insecure channel? A Elliptic Curve B RSA C MD5 D ...

WGU C839 Pre- Assessment V1 (Latest 2024/ 2025 Update) Introduction to Cryptography| Qs & As| Grade A| 100% Correct (Verified Answers) Q: What is the result of a hash function? Answer: Digest Q: What is used to efficiently encrypt *large files?* Answer: Symmetric encryption Q: An administrator needs to encrypt the following word with the Atbash cipher: *security* Which ciphertext is correct? Answer: hvxfirgb Remember this is a Mono-Alphabet Substituti...

Symmetric CORRECT ANSWERS: Which encryption standard uses the same key to encrypt and decrypt messages? Skipjack CORRECT ANSWERS: Which algorithm is designated as a Type 2 product by the National Security Agency (NSA)? X.509 v3 CORRECT ANSWERS: What is the most commonly used format for certificates? Certificate revocation list (CRL) CORRECT ANSWERS: What is referenced to determine if a certificate has been revoked? Sender's public key CORRECT ANSWERS: What needs to be installed...

1. How did the ATBASH cipher work? correct answer 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? correct answer 2^56 3. Which of the following are valid key sizes for AES (choose three)? correct answer c. 128 d. 192 e. 256 4. Which of the following algorithms uses three different keys to encrypt the plain text? correct answer 3DES Triple Data Encryption System 5. Which of the f...

Certified Encryption Specialist Practice Questions and Answers Latest 2024/2025 | 100% Correct. The most widely used asymmetric encryption algorithm is what? +Caesar Cipher +Vigenere +RSA +DES - Answer RSA The RSA encryption algorithm is one of the most widely used public key encryption algorithms that have ever been invented. It was created by the three scientists Ronald Rivest, Adi Shamir, and Leonard Adleman in 1977, and today it is increasingly being used in the network area. Origin...

What type of encryption uses different keys to encrypt and decrypt the message? A Symmetric B Private key C Secure D Asymmetric D The most widely used asymmetric encryption algorithm is what? A RSA B Vigenere C DES D Caesar Cipher A 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 U...

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 Interloper a ...

rypTool - 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 six-by-six square of letters, used to encode a 36-letter alphabet. The Playfair Cipher - invented in 1854...