Hashing

Question 1

What is the MD5?

Answer 1

Creates a 128-bit hash value that is unique to the input file

Question 2

What is SHA-1?

Answer 2

Created a 160-bit hash digest, which reduces the number of collisions that occur

Question 3

What is SHA-2?

Answer 3

Family of hash functions that contain longer hash digests

Includes: SHA-224, SHA-256, SHA-384, SHA-512

Question 4

What is SHA-3?

Answer 4

Newer family of hash functions, and its hash digest can go between 224 bits and 512 bits

120 rounds of computation

Question 5

What is the RIPEMD (RACE Integrity Primitive Evaluation Message Digest)?

Answer 5

Comes in 160-bit, 256-bit, and 320-bit versions

Question 6

What is HMAC (Hash-Based Message Authentication Code)?

Answer 6

Used to check the integrity of a message and provides some level of assurance that its authenticity is real

Question 7

What is the “Pass the hash attack”?

Answer 7

Hacking technique that allows the attacker to authenticate to a remote server or service by using the underlying hash of a users password

Question 8

What is the “Birthday Attack”?

Answer 8

An attacker is able to send two different messages through a hash algorithm and it creates the same hash resulting in a collision