Triple des - Study guides, Class notes & Summaries

Chapter 2 – Cryptographic Tools TRUE/FALSE QUESTIONS: T F 1. Symmetric encryption is used primarily to provide confidentiality. T F 2. Two of the most important applications of public-key encryption are digital signatures and key management. T F 3. Cryptanalytic attacks try every possible key on a piece of ciphertext until an intelligible translation into plaintext is obtained. T F 4. The secret key is input to the encryption algorithm. T F 5. Triple DES tak...

WGU C839 Objective Assessment Study Guide (Latest 2024/ 2025 Update) Introduction to Cryptography| Qs & As| Grade A| 100% Correct (Verified Answers) Q: Information Theory Answer: -Published by Claude Shannon in 1949 in the Bell System Technical Journal - Important concepts: -Diffusion -Confusion -Avalanche Effect (Horst Feist's variation on Shannon's concept of diffusion Q: Kerckhoff's Principle Answer: -1883 -A crptosystem should be secure even if all its elemen...

Which of the following phases of a system development life-cycle is most concerned with authenticating users and processes to ensure appropriate access control decisions? - Operation and maintenance What is the effective key size of DES? - 56 bit What are two types of ciphers? - Transposition and substitution When block chaining cryptography is used, what type of code is calculated and appended to the data to ensure authenticity? - Message authentication code Which of the following is the ...

Network+ N10-008 Network Security 4.1 Exam Study Guide with Complete Solutions Latest Updated CIA Triad - Correct Answer Confidentiality: Keeps data private and safe using encryption and authentication to access resources. Integrity: Ensures data was not modified in transit and verifies it came from its original source. Availability: Measures data accessibility and is increased by designed redundant networks. Symmetric Encryption - Correct Answer Sender and receiver use the same key to enc...

Which of the following phases of a system development life-cycle is most concerned with authenticating users and processes to ensure appropriate access control decisions? The Answer Is :- Operation and maintenance What is the effective key size of DES? The Answer Is :- 56 bit What are two types of ciphers? The Answer Is :- Transposition and substitution When block chaining cryptography is used, what type of code is calculated and appended to the data to ensure authenticity? The Answer Is :...

WGU C839V5/D334 ADDITIONAL PRACTICE QUESTIONS AND ANSWERS VERIFIED 100% The hash value in bits for MD5 is ____. A. 128 B. 160 C. 256 Ans- 128 Hashing involves taking a _____ length input and producing a _____ length output (message digest). A. fixed; fixed B. variable; fixed C. fixed; variable Ans- variable; fixed The hash value in bits for SHA-1 is ____. A. 128 B. 160 C. 256 Ans- 160 The hash value in bits for MD4 is ____. A. 128 B. 160 C. 256 Ans- 128 ...

CRY 303c Final Exam | Questions with complete solutions Which of the following violate Kerckhoff's principle? Select all that are applicable. A. A company states that its system is "secure" because it uses confidential and proprietary protocols. B. The company password is written using an invisible ink, and only the people within the company know the fact that invisible ink is used. C. The algorithms for popular symmetric ciphers such as DES and AES are publicly known. D. The attacker has t...

WGU C839V5/D334 ADDITIONAL PRACTICE QUESTIONS AND ANSWERS 2024/2025 SOLVED 100%;(VIEW AHEAD OF EXAM STUDY TIPS GUARANTEED SUCCESS) The hash value in bits for MD5 is ____. A. 128 B. 160 C. 256 ANS- 128 Hashing involves taking a _____ length input and producing a _____ length output (message digest). A. fixed; fixed B. variable; fixed C. fixed; variable ANS- variable; fixed The hash value in bits for SHA-1 is ____. A. 128 B. 160 C. 256 ANS- 160 The hash value in bits f...

CSIA 300 Final Prep Which of the following phases of a system development life-cycle is most concerned with authenticating users and processes to ensure appropriate access control decisions? - Operation and maintenance What is the effective key size of DES? - 56 bit What are two types of ciphers? - Transposition and substitution When block chaining cryptography is used, what type of code is calculated and appended to the data to ensure authenticity? - Message authentication code ...

CSIA 300 Final Exam QUESTIONS AND ANSWERS 2023 UPDATE GRADED A+ Which of the following phases of a system development life-cycle is most concerned with authenticating users and processes to ensure appropriate access control decisions? - Correct Answer-Operation and maintenance What is the effective key size of DES? - Correct Answer-56 bit What are two types of ciphers? - Correct Answer-Transposition and substitution When block chaining cryptography is used, what type of code is calculated...