CHAPTER 6 Downgrade attack Basil was reading about a new attack that forces the system to abandon a higher cryptographic security mode of operation and instead fall back to an older and less secure mode. What type of attack is this? Brielle is researching substitution ciphers. She came across a Nonrepudiation cipher in which the entire alphabet was rotated 13 steps. What type of cipher is this? ROT13 Brielle is researching substitution ciphers. She came across a cipher in which the entire alphabet was rotated 13 steps. What type of cipher is this? SHA3-512 Cicero is researching hash algorithms. Which algorithm would produce the longest and most secure digest? As computers become more powerful, the ability to Deo has been asked to explain RSA to his colleague. After his explanation, Deo is asked what, if any, weaknesses RSA has. compute factoring has increased. How would Deo respond? Verify the receiver Egor wanted to use a digital signature. Which of the following benefits will the digital signature NOT provide? Alice’s public key If Bob wants to send a secure message to Alice using an asymmetric cryptographic algorithm, which key does he use to encrypt the message? What are public key systems that generate different random Perfect forward secrecy public keys for each session? What is a collision? Two files produce the same digest Plaintext What is data called that is to be encrypted by inputting it into a cryptographic algorithm? The time between when a byte is input into a What is low latency? cryptographic cipher and when the output is obtained. Steganography Which of the following hides the existence of information? Proprietary cryptographic algorithms are an Which of the following is FALSE about "security through obscurity"? example. Which of the following is NOT a characteristic of the Trusted It includes a pseudorandom number generator Platform Module (TPM)? (PRNG). TPM stores artifacts (password, encryption key, certificate) to authenticate platforms. SHA Which of the following is NOT a symmetric cryptographic algorithm? Digest Which of the following is not to be decrypted but is only used for comparison purposes? Risk Which of these is NOT a basic security protection for information that cryptography can provide? Collisions should occur no more than 15 percent of Which of these is NOT a characteristic of a secure hash algorithm? the time. Advanced Encryption Standard Which of these is the strongest symmetric cryptographic algorithm? Hardware Security Module (HSM) Which of these provides cryptographic services and is external to the device?

Network Security Ch.6 Answers

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