Quiz
Chapter 3
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Perguntas do quiz (29)
1What is a block cipher algorithm that operates on 64-bit blocks and can have a key length from 32 to 448 bits?
- ATwofish
- BBlowfish
- CWhirlpool
- DRijndal
2If using the MD5 hashing algorithm, what is the length to which each message is padded?
- A32 bits
- B64 bits
- C128 bits
- D512 bits
3In which type of encryption is the same key used to encrypt and decrypt data?
- Aprivate
- Bpublic
- Csymmetric
- Dasymmetric
4The simplest type of stream cipher, one in which one letter or character is exchanged for another, is known as what?
- Ashift
- Bsubstitution
- Clock
- Dloop
5Which type of cryptographic algorithm takes an input string of any length, and returns a string of any requested variable length?
- Asubstitution
- Bblock
- Cloop
- Dsponge
6After the DES cipher was broken and no longer considered secure, what encryption algorithm was made as its successor?
- AAES
- BTwofish
- C3DES
- DRSA
7Which standard was approved by NIST in late 2000 as a replacement for DES?
- AAES
- B3DES
- CRSA
- DTwofish
8What type of cryptography uses two keys instead of just one, generating both a private and a public key?
- Asymmetric
- Basymmetric
- Cshared
- Dopen
9
Which of the following is not one of the functions of a digital signature?- Averification of the sender
- Bprevention of the sender from disowning the message
- Cprove the integrity of the message
- Dprotect the public key
10Which of the following asymmetric cryptography algorithms is most commonly used?
- AAES
- BRSA
- CTwofish
- DBlowfish
11What cryptographic method, first proposed in the mid-1980s, makes use of sloping curves instead of large prime numbers?
- AFCC
- BRSA
- CECC
- DIKE
12What widely used commercial asymmetric cryptography software can be used for encrypting files and email messages?
- APGP
- BGPG
- CEFS
- DGNUPG
13
The SHA-1 hashing algorithm creates a digest that is how many bits in length?- A96 bits
- B128 bits
- C160 bits
- D192 bits
14Data that is in an unencrypted form is referred to as which of the following?
- Acrypttext
- Bplain text
- Csimpletext
- Dcleartext
15In cryptography, which of the five basic protections ensures that the information is correct and no unauthorized person or malicious software has altered that data?
- Aconfidentiality
- Bavailability
- Cencryption
- Dintegrity
16What type of cryptographic algorithm creates a unique digital fingerprint of a set of data?
- Ahash
- Bkey
- Cdigest
- Dblock
17Which hash algorithm's primary design feature is two different and independent parallel chains of computation, the results of which are then combined at the end of the process?
- ASHA-384
- BHMAC
- CRIPEMD
- DMD5
18What type of cipher takes one character and replaces it with one character, working one character at a time?
- Ablock cipher
- Bsingle cipher
- Cunit cipher
- Dstream cipher
19What term describes data actions being performed by endpoint devices, such as printing a report from a desktop computer?
- Adata-in-transit
- Bdata-in-play
- Cdata-at-rest
- Ddata-in-use
20What type of message authentication code uses hashing to authenticate the sender by using both a hash function and a secret cryptographic key?
- ASHA-384
- BHMAC
- CRIPEMD
- DMD5
21What alternative term can be used to describe asymmetric cryptographic algorithms?
- Auser key cryptography
- Bpublic key cryptography
- Cprivate key cryptography
- Dcipher-text cryptography
22What is the U.S. federal government standard for digital signatures?
- AData Encryption Standard
- BElliptic Curve Cryptography
- CAdvanced Encryption Standard
- DDigital Signature Algorithm
23If Bob receives an encrypted reply message from Alice, whose private key is used to decrypt the received message?
- ABob's private key.
- BAlice's private key.
- CBob and Alice's keys.
- DBob's private key and Alice's public key.
24When Bob needs to send Alice a message with a digital signature, whose private key is used to encrypt the hash?
- ABob's private key
- BAlice's private key
- CBob and Alice's keys.
- DBob's private key and Alice's public key.
25Which key exchange requires Alice and Bob to each agree upon a large prime number and related integer?
- AQuantum Prime
- BPrime-Curve
- CDiffie-Hellman
- DElliptic Curve Diffie-Hellman
26Which of the following is a public key system that generates random public keys that are different for each session?
- Aephemeral-secrecy
- Bperfect forward secrecy
- Cpublic secrecy
- Drandom-key exchange
27What term best describes when cryptography is applied to entire disks instead of individual files or groups of files?
- Afull disk encryption
- Bsystem encryption
- COS encryption
- Ddisk encryption
28Which of the following is more secure than software encryption?
- Ahardware encryption
- Bprivate encryption
- Capplication encryption
- Dfull disk encryption
29What technology uses a chip on the motherboard of the computer to provide cryptographic services?
- ASEDs
- BFDE
- CTPM
- DHSM
Informações
- Descrição
- Quiz sobre Chapter 3, criado por Nitha Nitha em 09-10-2018.
- Autor
- Nitha Nitha
- Idioma
- English
- Visualizações
- 4
- Avaliação
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