Discrete Mathematics Cryptography Decryption Online Exam Quiz
Discrete Mathematics Cryptography Decryption GK Quiz. Question and Answers related to Discrete Mathematics Cryptography Decryption. MCQ (Multiple Choice Questions with answers about Discrete Mathematics Cryptography Decryption
The ROT13 caesar cipher system has an offset of ___________
Options
A : 13
B : 45
C : 71
D : 37
Suppose that there are two primes, P1 = 229 and p2 = 61. Find the value of z and ?.
Options
A : 13969, 13680
B : 5853, 23452
C : 7793, 34565
D : 17146, 69262
How many bits of message does the Secure Hash Algorithm produce?
Options
A : 160 bits
B : 1035 bits
C : 621 bits
D : 3761 bits
The public key of given user, in an RSA encryption system is e = 57 and n = 3901. What is the value of Euler’s totient function ?(n) for calculating the private key of the user?
Options
A : 4369
B : 3772
C : 871
D : 7892
Using RSA algorithm what is the value of cipher test c if the plain text e = 7 and P = 5, q = 16 & n = 832. Determine the Euler’s totient function for the plain text?
Options
A : 47
B : 584
C : 428
D : 60
In a public key system, the cipher text received is C = 10 if RSA encryption used with a public key(e = 11, n = 77) to deduce the plain text. Determine the value of ?(n)?
Options
A : 49
B : 60
C : 123
D : 70
There are 67 people in a company where they are using secret key encryption and decryption system for privacy purpose. Determine the number of secret keys required for this purpose?
Options
A : 887
B : 6529
C : 2211
D : 834
To encrypt a message _______ is used on the character’s positions.
Options
A : boolean algebra
B : bijective function
C : inverse function
D : surjective function
In a transposition cipher, the plaintext is constructed by the ________ of the ciphertext.
Options
A : permutation
B : combination
C : sequence
D : series
________ can decrypt traffic to make it available to all other network security functions such as web proxies.
Options
A : SSL visibility appliances
B : RSA appliances
C : Rodriguez cipher system
D : Standard cipher system
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