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Hashing vs Encryption: What Is the Difference Between One-Way and Two-Way Security?
Understand the key differences between hashing and encryption in cybersecurity. Learn why hashing provides irreversible data integrity, while two-way encryption protects confidentiality.
Question
What is a key difference between hashing and encryption?
A. Hashing protects confidentiality, whereas encryption ensures integrity.
B. Hashing is reversible, whereas encryption is one-way.
C. Both are used for data at rest, but only encryption is used for data in transit.
D. Hashing is one-way and used for integrity, whereas encryption is two-way and used for confidentiality.
Answer
D. Hashing is one-way and used for integrity, whereas encryption is two-way and used for confidentiality.
Explanation
While both hashing and encryption protect your data, they serve completely different purposes. Think of hashing as a digital fingerprint: it creates a unique, irreversible code from your data to prove that a file or password hasn’t been tampered with, verifying its integrity. Encryption works more like a safe with a key; it scrambles your sensitive information to keep it confidential from prying eyes, but allows authorized users to unlock and read the original data whenever needed.
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