What if someone steals your database…
will your users’ passwords be exposed instantly?

This is exactly why Hashing and Salt are used in real-world applications.

In today’s lecture, I explained the complete concept of Hashing and Salting, and then demonstrated a simple Java implementation to help you understand how it works internally.

This implementation is for learning purposes only — real-world systems use secure algorithms like bcrypt, SHA, etc.

WHAT YOU WILL LEARN IN THIS VIDEO?
* What is Hashing
* Why we use Hashing in real-world applications
* Importance of Hashing in security
* Types of Hashing (basic overview)
* Real-life examples of Hashing

* What is Salt
* Why Salt is added to hashes
* How Salt protects against attacks

* Practical Java Implementation:
Simple hashing logic (custom implementation)
Adding salt to password
Generating salted hash
Understanding flow step by step

* Why this approach is NOT used in production
* Introduction to secure hashing algorithms (bcrypt, SHA)

INTERVIEW + REAL WORLD INSIGHT
In interviews and real systems, hashing is used for:
Password storage
Data integrity verification
Digital signatures
Authentication systems

Interviewers often ask:
* Difference between hashing and encryption
* Why salt is important
* What happens if salt is not used
* Which hashing algorithms are secure

Never store plain passwords or use custom insecure hashing.

Subscribe The Techzeen for logic-first DSA & system-level coding in Hindi/Urdu
Learn real-world concepts with practical clarity.

The Techzeen Website:
https://www.thetechzeen.com/

Source Code:
https://github.com/farzeen-ali/DSA-Concepts-The-Techzeen-2025

DSA Lectures:
https://github.com/farzeen-ali/DSA-Lectures-2025-The-Techzeen

DSA Playlist 2026:
https://www.youtube.com/playlist?list=PL5OhSdfH4uDvFpMTyHurVoyCsW85PVS_C

DevOps Tutorial 2026:
https://www.youtube.com/playlist?list=PL5OhSdfH4uDsyUM02ZHl2mOYBpihCYsml

OOP with Java:
https://www.youtube.com/playlist?list=PL5OhSdfH4uDuiGuQW_iARmPVq1sPLsRtZ

#Hashing #Salt #CyberSecurityBasics #PasswordSecurity #JavaDSA #HashingExplained #DataSecurity #CodingInterviewPrep #LearnSecurity #TheTechzeen #EncryptionVsHashing #SecureCoding #FAANGPreparation