Glossary: Security+ Exam Prep 1: Strategy and Objective Review

Hashing

Also written: hash, hashes, hashing algorithms

Turning data into a fixed-size, one-way fingerprint that can't be reversed. It proves integrity and is used to store passwords; a known-bad file hash is also an indicator of compromise.

Where the book teaches it

Chapter 2: Domain 1: General Security Concepts
Chapter 3: Domain 2: Threats, Vulnerabilities, and Attacks
Chapter 4: Domain 3: Security Architecture
Chapter 5: Domain 4: Security Operations

Related terms

Secure Hash Algorithm (SHA)Salting Encryption