CryptoModern16thJuly2025

Which type of Stream cipher is this?

• Synchronization stream cipher

• Self-synchronization stream cipher

• Semi-synchronization stream cipher

• Non - synchronization stream cipher

A company plans to use a stream cipher for Video Processing on their website. Which of the following characteristics of stream ciphers is an advantage for this scenario?

• Memory intensive

• Key Reuse

• Low Latency

• High Latency

Which of the following is not a TRNG?

• Processor Electrical Activity

• LSFR

• keystroke timing patterns

• Mouse Movement

If the seed is unknown, the next output bit in the sequence should be unpredictable in spite of any knowledge of previous bits in the sequence

This concept is known as?

• Forward unpredictability

• Backward unpredictability

• Characteristics of the seed

• Randomness

This equation is used to generate PRNG using LCG. Which value decides producing a long series of distinct random numbers?

• a

• Xn

• c

• m

The XOR operations are performed within the register itself, with the output of each stage being XORed with the feedback tap before being shifted to the next stage.

Name the type of LSFR?

• Fibonacci

• Galois

What encryption type is used for protecting the WIFI WPA3

• RSA

• SHA1

• AES

• WPA

Given hash value h, computationally infeasible to find m so that H(m) = h

Name the property?

• One way

• Two way

• Strong-collision resistance

• Weak-collision resistance