Which of the following are true of Triple DES (3DES)? (select two) (9.5 1/15)

TestOut SecurityPro (9.4 - 9.6)

Quiz
•
Computers
•
University
•
Hard

James Stephens
Used 7+ times
FREE Resource
23 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
uses a 168-bit key
Can easily be broken
Is used in IPsec
uses 64-bit blocks with 128-bit keys
Uses the Rijndael block cipher
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is the most frequently used symmetric key stream cipher? (9.5 2/15)
Ron's Cipher v2 (RC2)
Ron's Cipher v4 (RC4)
Blowfish
Advanced Encryption Standard (AES)
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following forms of cryptography is best implemented in hardware? (9.5 3/15)
Symmetric stream
Asymmetric
Symmetric block
Public key
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following symmetric block ciphers does NOT use a variable block length? (9.5 4/15)
Advanced Encryption Standard (AES)
Elliptic Curve (EC)
Ron's Cipher v5 (RC5)
International Data Encryption Algorithm (IDEA)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following encryption mechanisms offers the least security because of weak keys? (9.5 5/15)
IDEA
AES
TwoFish
DES
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which version of the Rivest cipher is a block cipher that supports variable bit length keys and variable bit block sizes? (9.5 6/15)
RC2
RC5
RC4
RSA
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following symmetric cryptography systems does not support a variable block size? (9.5 7/15)
AES
IDEA
RC5
Rijndael
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