INTRODUCTION TO CRYPTOGRAPHY FINAL EXAM – FULL STUDY PACK | MCQS, SOLUTIONS & VERIFIED ANSWERS | CYBERSECURITY FUNDAMENTALS

INTRODUCTION TO CRYPTOGRAPHY FINAL EXAM – FULL
STUDY PACK | MCQS, SOLUTIONS & VERIFIED ANSWERS |
CYBERSECURITY FUNDAMENTALS
VIRTUALLY ALL CRYPTOGRAPHIC HASH FUNCTIONS INVOLVE THE ITERATIVE USE OF A
COMPRESSION FUNCTION.

CORRECT ANS: TRUE




A GOOD HASH FUNCTION HAS THE PROPERTY THAT "THE RESULTS OF APPLYING THE FUNCTION
TO A LARGE SET OF INPUTS WILL PRODUCE OUTPUTS THAT ARE EVENLY DISTRIBUTED AND
APPARENTLY RANDOM".

CORRECT ANS: TRUE




HASH FUNCTIONS CAN BE USED FOR INTRUSION AND VIRUS DETECTIONS.

CORRECT ANS: TRUE




THE WAY TO MEASURE THE RESISTANCE OF A HASH ALGORITHM TO CRYPTANALYSIS IS TO
COMPARE ITS STRENGTH TO THE EFFORT REQUIRED FOR A BRUTE-FORCE ATTACK.

CORRECT ANS: TRUE




IT CAN BE SHOWN THAT SOME FORM OF BIRTHDAY ATTACK WILL SUCCEED AGAINST ANY HASH
SCHEME INVOLVING THE USE OF CIPHER BLOCK CHAINING WITHOUT A SECRET KEY, PROVIDED
THAT EITHER THE RESULTING HASH CODE IS SMALL ENOUGH OR THAT A LARGER HASH CODE
CAN BE DECOMPOSED INTO INDEPENDENT SUBCODES.

, CORRECT ANS: TRUE




THE PRINCIPAL PURPOSE OF A HASH FUNCTION IS __________ .

CORRECT ANS: DATA INTEGRITY




__________ ARE MEASURES OF THE NUMBER OF POTENTIAL COLLISIONS FOR A GIVEN HASH
VALUE.

CORRECT ANS: PREIMAGES




THE EFFORT REQUIRED FOR A COLLISION RESISTANT ATTACK IS EXPLAINED BY A MATHEMATICAL
RESULT REFERRED TO AS THE ___________ .

CORRECT ANS: BIRTHDAY PARADOX




SHA-1 PRODUCES A HASH VALUE OF __________ BITS.

CORRECT ANS: 160




THE __________ RESISTANCE GUARANTEES THAT IT IS IMPOSSIBLE TO FIND AN ALTERNATIVE
MESSAGE WITH THE SAME HASH VALUE AS A GIVEN MESSAGE.

CORRECT ANS: SECOND PRE-IMAGE