Cryptographic Attacks Quiz

What is it called when two hashes are the same?

• Mathematical Error

• Overflow

• Race Condition

• Collision

What is the Birthday problem?

• Considers the probability that in a set of N randomly chosen people, two people will have the same birthday

• Considers the probability that in a set of N randomly chosen people, another person will share your birthday

• Considers the probability that in a set of N uniformly chosen people, two people will have the same birthday

• Considers the probability that in a set of N randomly chosen people, 50% of the people will have the same birthday

How are passwords typically stored within a database?

• Hashed

• Encrypted

• Encoded

• In Binary Format

How many characters long are MD5 hashes?

• 16

• 32

• 64

• 128

What is a brute force attack?

• Physically breaking into a secure repository to steal information

• Attempting to randomly guess based on some probability what the right answer would be

• Trying all possible combinations and permutations until the right guess works

• Use a logarithmic algorithm to reduce the numbers of potential guesses before selecting from the options available

Which hashing algorithm was first published in 1992 and had collisions verified in 1996?

• MD1

• MD3

• MD5

• MD7

One way to help strengthen a hashed password to _______.

• Use multiple passwords

• Salt the password

• Save passwords in a file

• Encrypt passwords

A ______ attack is when a malicious actor is able to attack a system by using older version of software.

• downgrade

• prehistoric

• pen and paper

• precursory