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WorksheetsCryptography Unit2
Total questions: 25
Worksheet time: 4mins
In symmetric key cryptography, the same key is used for:
Which of the following is a symmetric key algorithm?
DES stands for:
DES has a block size of:
The number of rounds in DES is:
AES supports key sizes of:
The block size in AES is fixed at:
The number of rounds in AES-128 is:
Which operation is not used in AES?
Linear cryptanalysis uses:
Differential cryptanalysis studies:
The avalanche effect ensures that:
A secure S-box must have:
One key S-box design principle is to:
ECB mode encrypts blocks:
CBC mode stands for:
Which block cipher mode requires an IV (Initialization Vector)?
CTR mode stands for:
Which is a disadvantage of ECB mode?
A stream cipher encrypts:
Which is a popular stream cipher?
Which technique targets cipher rounds individually?
In differential cryptanalysis, a differential refers to:
Which of the following is not a block cipher mode of operation?
A mode that turns a block cipher into a stream cipher is:
