Hashing

Question 1

What is hashing?

Answer 1

It takes variable length data and creates a fix length data, a one-way encryption and cannot be reverse engineered

Question 2

What is the hashing process?

Answer 2

This takes the data sends it through a algorithm and that spits out a randomized sequence of letters and numbers in a fixed length that can be checked for integrity

Question 3

What is the MD5 hashing algorithms

Answer 3

128 bit, weakest and prone to collisions

Question 4

what is SHA-1 algorithm

Answer 4

Sucessor to MD5, 160 bits, and prone to collision attacks

Question 5

What is SHA-2 algorithm?

Answer 5

Sucessor to SHA-1, has 224,256,384,512 bit hashing and strongest security

Question 6

What is RIPEME algorithm?

Answer 6

Designed as replacement to MD5, has 128,160,256,320 bit hashing

Question 7

What is HMAC?

Answer 7

data integrity and authentication, keyed hashing function. Uses MD5, SHA-1 and SHA-2

Question 8

Examples of hashing use

Answer 8

File integrity, code signing, passwords, messages that go across networks

Question 9

What is salting?

Answer 9

Adding a extra element to a hash to add integrity and security