Module 6 Basic Cyrptography REVIEW

Which of these is the strongest symmetric cryptographic algorithm?

Advanced Encryption Standard

Which of the following is NOT a symmetric cryptographic algorithm?

SHA

Cicero is researching hash algorithms. Which algorithm would produce the longest and most secure digest?

SHA3-512

If Bob wants to send a secure message to Alice using an asymmetric cryptographic algorithm, which key does he use to encrypt the message?

Alice's public key

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?

Downgrade attack

Which of these is NOT a basic security protection for information that cryptography can provide?

Risk

Which of the following hides the existence of information?

Steganography

What are public key systems that generate different random public keys for each session?

perfect forward secrecy

Deo has been asked to explain RSA to his colleague. After his explanation, Deo is asked what, if any, weaknesses RSA has. How would Deo respond?

As computers become more powerful, the ability to compute factoring has increased.

Which of these is NOT a characteristic of a secure hash algorithm?

Collisions should occur no more than 15 percent of the time.

Which of the following is not to be decrypted but is only used for comparison purposes?

Digest

Which of the following is FALSE about "security through obscurity"?

It can only provide limited security.

Which of the following is NOT a characteristic of the Trusted Platform Module (TPM)?

It includes a pseudorandom number generator (PRNG)

Cryptography can prevent an individual from fraudulently reneging on an action. What is this known as?

Nonrepudiation

What is data called that is to be encrypted by inputting it into a cryptographic algorithm?

Plaintext

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?

ROT13

What is low latency?

The time between when a byte is input into a cryptographic cipher and when the output is obtained.

What is a collision?

Two files produce the same digest.

Egor wanted to use a digital signature. Which of the following benefits will the digital signature NOT provide?

Verify the receiver

Which of these provides cryptographic services and is external to the device?

Hardware Security Module (HSM)