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WorksheetsCNS-Quiz-D
Total questions: 10
Worksheet time: 8mins
Encryption Strength is based on
Strength of algorithm
Length of key
Secrecy of key
All of the above
In cryptography, the order of letters in a message is rearranged by
Transpositional ciphers
Substitution ciphers
Both (A) and (B)
Quadratic ciphers
In public key encryption, if A wants to send an encrypted message
A encrypts message using B’s public key
A encrypts message using his private key
A encrypts message using B’s private key
A encrypts message using his public key
What is data encryption standard (DES)?
Bit cipher
Stream cipher
Block cipher
Byte cipher
Which of the 4 operations are false for each round in the AES algorithm
i) Substitute Bytes
ii) Shift Columns
iii) Mix Rows
iv) XOR Round Key
i) only
ii) iii) and iv)
ii) and iii)
only iv)
gcd( 18,300)
(a)
73 mod 19
(a)
Which one of the following is not an application hash functions?
One-way password file
Key wrapping
Virus Detection
Intrusion detection
How many rounds are present in each iteration function of SHA-3?
3
4
5
6
A file is created by a certain user, who becomes its owner. The owner can choose to provide access to this file to other users. If file data confidentiality is desired, the owner should control who has…
Read access to the file
Write access to the file
Both read and write access to the file
None of the above
