How Does a Hash Function Differ from an Encryption Algorithm?

A hash function is a one-way mathematical process that converts data of any size into a fixed-size string of characters (the hash). It is irreversible; you cannot get the original data back from the hash.

An encryption algorithm is a two-way process that scrambles data (plaintext) into an unreadable format (ciphertext) using a key, which can then be reversed (decrypted) back into the original data using the correct key.

How Does the Concept of a “Key” Differ between Asymmetric Encryption and Hashing?
What Is a Cryptographic Hash Function?
What Cryptographic Function Is Primarily Used to Generate Transaction Hashes?
What Are the Differences between Single-Function and Cross-Function Reentrancy Attacks?
What Is the Difference between a Hash Function and an Encryption Algorithm?
Is a Similar One-Way Function Used to Calculate the Price of an Options Derivative?
How Can Investors Check a token’S Contract for Potential’rug Pull’ Functions?
Define “Cryptographic Hash Function.”

Glossar