Cryptography Cryptography Overview Iii Online Exam Quiz
Cryptography Cryptography Overview Iii GK Quiz. Question and Answers related to Cryptography Cryptography Overview Iii. MCQ (Multiple Choice Questions with answers about Cryptography Cryptography Overview Iii
The Inverse S-box value for byte stored in cell (D,2)
Options
A : 0x5F
B : 0x2D
C : 0x7F
D : 0x5D
The GCD of x5+ x4+ x3– x2 – x + 1 and x3 + x2+ x + 1 over GF(3) is
Options
A : 1
B : x
C : x + 1
D : x2 + 1
How many rounds does the AES-192 perform?
Options
A : 10
B : 12
C : 14
D : 16
The number of rounds in RC5 can range from 0 to _____________
Options
A : 127
B : 63
C : 255
D : 31
Division of (131B6C3) base 16 by (lA2F) base 16 yeilds
Options
A : 1AD
B : DAD
C : BAD
D : 9AD
How many keys are used in the ANSI X9.17 PRNG?
Options
A : 3
B : 2
C : 4
D : 6
Maurer’s Universal Statistical Test is
Options
A : a test to determine whether the number of runs of ones and zeros of various lengths is as expecte
B : a test to detect if a sequence can be significantly compressed without loss of information
C : a test to determine whether the number of ones and zeros in a sequence is approx the same as in a truely random o/p
D : a test for the check of evenness in the 1s and 0s
On Encrypting “thepepsiisintherefrigerator” using Vignere Cipher System using the keyword “HUMOR” we get cipher text
Options
A : abqdnwewuwjphfvrrtrfznsdokvl
B : abqdvmwuwjphfvvyyrfznydokvl
C : tbqyrvmwuwjphfvvyyrfznydokvl
D : baiuvmwuwjphfoeiyrfznydokvl
RC5 uses 2 magic constants to define their subkeys. These are
Options
A : Base of natural Logarithm and Golden ratio
B : Base of natural Logarithm and Pi
C : Golden Ratio and Pi
D : Pi and Golden Ration
Multiply the polynomials P1 = (x5 + x2 + x) by P2 = (x7 + x4 + x3 + x2 + x) in GF(28) with irreducible polynomial (x8 + x4 + x3 + x + 1). The result is
Options
A : x4+ x3+ x+1
B : x5+ x3+ x2+x+1
C : x5+ x4+ x3+x+1
D : x5+ x3+ x2+x
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