Cryptography fina - Study guides, Class notes & Summaries

Distinguish between symmetric-key and asymmetric-key cryptosystems. - ANSWER - Aysmmetric key cryptography utilizes two separate keys, a public and a private key, as opposed to symmetric key cryptography, which only utilizes one key. While encryption and decryption in symmetric key cryptography is based on substitutions and permutations of symbols, encryption in asymmetric key cryptography is based off of applying mathematical functions to numbers. Distinguish between public and private keys...

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...

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 asymmetric system? A PGP

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CRYPTOGRAPHY AND NETWORK SECURITY FINAL EXAM 2024...

Cryptography Final UPDATED Actual Exam Questions and CORRECT Answers Cryptology - CORRECT ANSWER- is the study of cryptanalysis and cryptography cryptanalysis is used - CORRECT ANSWER- to find some insecurity in a cryptography scheme CIA Triad - CORRECT ANSWER- Confidentiality, Integrity, Availability

Cryptography Final Exam Questions and Answers with complete solution

Distinguish between symmetric-key and asymmetric-key cryptosystems. Answer - Aysmmetric key cryptography utilizes two separate keys, a public and a private key, as opposed to symmetric key cryptography, which only utilizes one key. While encryption and decryption in symmetric key cryptography is based on substitutions and permutations of symbols, encryption in asymmetric key cryptography is based off of applying mathematical functions to numbers. Distinguish between public and private keys i...

Cryptography Final Actual Exam Questions and CORRECT Answers Keys used in an encryption, and the corresponding decryption functions must be the same - CORRECT ANSWER- False For a Shannon cipher(E,D) defined over (k,m,c), D(k, E(k,m))=m - CORRECT ANSWER- True Knowing that entropy is a measure of randomness (more randomness =less predictability = more entropy), we can tell that ABCDEFGHHHHHHH has higher entropy than ABCDEFGH - CORRECT ANSWER- False

Cryptography Final Exam Study Guide Test Questions with Complete Solution The ______________ is the message after decryptionplaintext What type of cipher is the Vigenere cipher?polyalphabetic What is the decryption of bsujqsyodysw by use of Vigenere cipher with the key "USF?"happynewyear In Vernam cipher, its pad must be used just one time.true What is the encryption of HAPPYNEWYEAR by use of Caesar cipher with its encryption key 10?rkzzixogiokb Vigenere cipher overcomes the probl...