Which of the following answers best describes cryptographic hashing?

Question

A uniform length, one-way value calculated from an input
A method of sending data securely
Full Disk Encryption
A method of sending decryptable messages only decryptable with the sender's private key

Answer 1

The answer that best describes cryptographic hashing is: A uniform length, one-way value calculated from an input.

Cryptographic hashing involves taking an input (or 'message') and producing a fixed-length string of bytes that appears random. This process is one-way, meaning it should be computationally infeasible to reverse the process and obtain the original input from the hash.