WGU C839 OBJECTIVE ASSESSMENT 2
LATEST VERSIONS (VERSION A & B) | WGU
C839 INTRODUCTIONTO CRYPTOGRAPHY
OA ACTUAL EXAM NEWEST ACTUAL EXAM
WITH ACCURATE COMPLETE QUESTIONS
AND DETAILED ANSWERS GRADED A |
BRAND NEW!!!
What Algorithms are Symmetric Block ciphers?
AES
DES
IDEA
Blowfish
RC5
RC6
SkipJack
What Algorithms are Symmetric Stream ciphers?
,RC4
Chameleon
Fish
Helix
SOBER
WAKE
This hash function uses 512-bit blocks and implements preset
constants that change after each repetition. Each block is
hashed into a 256-bit block through four branches that divides
each 512 block into sixteen 32-bit words that are further
encrypted and rearranged
FORK256
Which of the following is an asymmetric algorithm that was first
publically described in 1977?
RSA
How did the ATBASH cipher work?
,By substituting each letter for the letter from the opposite
end of the alphabet (i.e. A becomes Z, B becomes Y, etc.)
DES has a key space of what?
2 to the 56th power
Which of the following are valid key sizes for AES (choose
three)?
128/192/256
What equation describes the encryption process for RSA?
Me % n
Which type of cipher converts a letter to a number, passes it
through a mathematical function, and then converts it back to a
letter?
Affine
, What algorithm does the clipper chip use?
Skipjack
What size key does Skipjack use?
80 bit
What size block does Skipjack use?
64
With Electronic codebook (ECB) what happens
The message is divided into blocks and each block is encrypted
separately. This is the most basic mode for symmetric
encryption.
Which algorithm implements an unbalanced Feistel cipher?
LATEST VERSIONS (VERSION A & B) | WGU
C839 INTRODUCTIONTO CRYPTOGRAPHY
OA ACTUAL EXAM NEWEST ACTUAL EXAM
WITH ACCURATE COMPLETE QUESTIONS
AND DETAILED ANSWERS GRADED A |
BRAND NEW!!!
What Algorithms are Symmetric Block ciphers?
AES
DES
IDEA
Blowfish
RC5
RC6
SkipJack
What Algorithms are Symmetric Stream ciphers?
,RC4
Chameleon
Fish
Helix
SOBER
WAKE
This hash function uses 512-bit blocks and implements preset
constants that change after each repetition. Each block is
hashed into a 256-bit block through four branches that divides
each 512 block into sixteen 32-bit words that are further
encrypted and rearranged
FORK256
Which of the following is an asymmetric algorithm that was first
publically described in 1977?
RSA
How did the ATBASH cipher work?
,By substituting each letter for the letter from the opposite
end of the alphabet (i.e. A becomes Z, B becomes Y, etc.)
DES has a key space of what?
2 to the 56th power
Which of the following are valid key sizes for AES (choose
three)?
128/192/256
What equation describes the encryption process for RSA?
Me % n
Which type of cipher converts a letter to a number, passes it
through a mathematical function, and then converts it back to a
letter?
Affine
, What algorithm does the clipper chip use?
Skipjack
What size key does Skipjack use?
80 bit
What size block does Skipjack use?
64
With Electronic codebook (ECB) what happens
The message is divided into blocks and each block is encrypted
separately. This is the most basic mode for symmetric
encryption.
Which algorithm implements an unbalanced Feistel cipher?
