Secure hash algorithm - Study guides, Class notes & Summaries

Which encryption standard uses the same key to encrypt and decrypt messages? -Correct Answer Symmetric Which algorithm is designated as a Type 2 product by the National Security Agency (NSA)? -Correct Answer Skipjack What is the most commonly used format for certificates? -Correct Answer X.509 v3 What is referenced to determine if a certificate has been revoked? -Correct Answer Certificate revocation list (CRL) What needs to be installed on end users' computers to allow them to tr...

Which Encryption Standard is approved by the National Security Agency (NSA) for classified authentication? A. Advanced Encryption Standard (AES) B. Secure Hash Algorithm (SHA) C. DATA Encryption Standard (DES) D. Key exchange Algorithm (KEA)Answer - A. Advanced Encryption Standard (AES) Which algorithm is a Type 3 key for the (NSA) National Security Agency? A. Key Exchange Algorithm (KEA) B. Advanced Encryption Standard (AES) C. Skipjack D. JuniperAnswer - B. Advanced Encryption Sta...

Confidentiality - Information is not made available or disclosed to unauthorized individuals, entities, or processes. Ensures unauthorized persons are not able to read private and sensitive data. It is achieved through cryptography. Integrity - Ensures unauthorized persons or channels are not able to modify the data. It is accomplished through the use of a message digest or digital signatures. Availability - The computing systems used to store and process information, the security controls...

Cryptography provides 5 basic protections, what are they? Confidentiality Integrity Availability Authentication Non-repudiation What are some Symmetric key disadvantages. Key management depends on all users to keep key secret Not easily scalable to large groups Symmetric key advantages. (List 2) Symmetric key algorithms are very fast High security especially with large key sizes Name 2 encryption methods. Block Cipher Stream Cipher _____ cipher encry...

Key Stretching correct answer: -A cryptographic technique that makes a weak key stronger by increasing the time it takes to test each possible key. In key stretching, the original key is fed into an algorithm to produce an enhanced key, which should be at least 128 bits for effectiveness. -Systems that use key stretching include Pretty Good Privacy (PGP), GNU Privacy Guard (GPG), Wi-Fi Protected Access (WPA), and WPA2. Widely used password key stretching algorithms include Password-Based Key D...

Definition of encryption - "Cryptography" -involves making and using codes to keep messages private and secure for their intended recipient --Kryptos = "hidden" Cryptanalysis - -involves cracking/breaking encrypted messages back into their unencrypted origins Bit Stream cipher - -encrypts plaintext one byte at a time (8-bits) -it is very fast encryption, lower hardware complexity, but can result in duplicate keystreams to encrypt and if someone gets both messages using the same key, t...

SEC+ MIKE MYERS – FINAL QUESTIONS AND ANSWERS 2024/2025 A+ categories of cryptographic attacks - ANS-- attack the algorithm: since this is usually impossible, try and get the victim to downgrade to a more outdated/crackable encryption algorithm - attack the implementation: i.e., look for vulnerabilities in the cryptosystem's protocol - attack the key: try to figure out the key steps to authentication - ANS-- identification: who are you (i.e., username) - authentication: prove it (i.e.,...

CISSP CBK Review Exam Questions And Correct Answers 2024 Update The mathematical manipulation of information that prevents the information from being disclosed or altered - Answer -Cryptography The practice of defeating the protective properties of cryptography - Answer -Cryptanalysis The study of cryptography and cryptanalysis - Answer -Cryptology Basic Goals of Cryptography - Answer -Confidentiality, Integrity, Authenticity, Non-Repudiation, Access Control, Make compromise diffic...

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...

WGU C839 Introduction to Cryptography Exam Questions and Answers Which encryption standard uses the same key to encrypt and decrypt messages? - Answer-Symmetric Which algorithm is designated as a Type 2 product by the National Security Agency (NSA)? -Answer-Skipjack What is the most commonly used format for certificates? -Answer-X.509 v3 What is referenced to determine if a certificate has been revoked? -Answer-Certificate revocation list (CRL) What needs to be installed on end users' ...