Cryptography in Blockchain 🔐 | How Secure Transactions Work | Hindi Explained

Day 3 – The Science of Blockchain Security | Cryptography Explained in Hindi

Welcome back to HeatCode 🔥, where we decode the toughest tech concepts in the simplest Hindi!
In today’s video, we’ll uncover how cryptography keeps blockchain data safe, private, and tamper-proof.

🧠 Topics Covered:

What is Cryptography?

Symmetric vs Asymmetric Encryption

How Blockchain Uses Cryptography for Data Security

Public & Private Keys Intro

Hashing (SHA-256 Example)

💡 Understanding Cryptography:
Cryptography is the core shield of blockchain — it converts every transaction into secure, unchangeable data blocks.
From hashing to digital keys, it ensures that your information stays private and authentic across the network.

💬 Tell us in the comments:
Which part of cryptography do you find most interesting — encryption or hashing?

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