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Overview

Copyright (c) A|iens. All rights reserved. — Quick Facts

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Property: Detail

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Full Name: Password (Pass Word / Pass-word)

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Hindi Meaning: Gupat shabd (गुप्त शब्द) — secret…

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Category: Authentication / Access Control

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Infobox

📚 | Property | Detail | |---|---| | Full Name | Password (Pass Word / Pass-word) | | Hindi…

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Password Kya Hai — Simple Samajho

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Email login: Gmail me username aur…

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Phone unlock: Kuch phones me text…

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Wi-Fi connect: Network ka password…

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Banking app: Login ke liye…

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Password Ka Kaam — Authentication Flow

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Password kabhi plain text me…

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Server kabhi plain text password…

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Comparison constant-time honi…

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Password Kaise Store Hota Hai — Hashing

⭐ Yeh samajhna critical hai — galat storage = millions of accounts compromised. Plain Text…

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Hashing Pipeline — Mermaid Diagram

🔑 `mermaid flowchart TD A["User enters<br/>password: 'MySecret@123'"] --> B["System…

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Password Strength — Kitna Strong Hai

✨ Password ki strength length, character variety, aur unpredictability pe depend karti hai.…

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Strong vs Weak Password

🌟 | Aspect | Weak Password | Strong Password | |---|---|---| | Example | password123 |…

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Password Attacks — Kaise Crack Hota Hai

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MD5: ~40 billion hashes/sec…

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SHA-256: ~4 billion hashes/sec

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bcrypt (cost 12): ~20,000…

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Argon2: ~100-1000 hashes/sec…

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Attack Lifecycle — Mermaid Sequence

📚 `mermaid sequenceDiagram participant A as Attacker participant DB as Leaked Database…

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Password Hashing Algorithms — Comparison

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Normal hashing (SHA-256) = fast =…

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bcrypt (cost 12) = slow = attacker…

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200,000x slower = 200,000x harder…

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Salt, Pepper aur Key Stretching

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Random string jo har user ke liye…

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Password + salt = unique hash…

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Public — salt database me hash ke…

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Rainbow table attacks defeat karta…

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Password Policies — Enterprise Rules

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Users write passwords down…

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Forced rotation = predictable…

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Complexity without length = false…

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Password Managers

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Vault encrypted with AES-256…

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Master password never transmitted…

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Local decryption only — manager…

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One risk: Master password…

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Multi-Factor Authentication (MFA)

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Password alone: ek factor…

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Password + MFA: dono factors…

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Real example: Agar tumhara…

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Password Recovery aur Reset

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Token should be cryptographically…

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Single use — after one use, token…

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Time-limited — typically 15-60…

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Not stored in plain text — hash…

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Data Breaches aur Password Leaks

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Have I Been Pwned…

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Password managers often have…

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Enterprise tools: continuous…

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NIST Guidelines — Modern Password Rules

📚 NIST SP 800-63B (Digital Identity Guidelines) ne password rules fundamentally change…

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Password vs Passkey vs Biometric

💡 | Feature | Password | Passkey | Biometric | |---|---|---|---| | What it is | Text string…

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Passwordless Future

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Billions of legacy systems…

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Fallback mechanism — agar…

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Universal compatibility — password…

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Low-cost option — no special…

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Common Problems aur Solutions

⭐ | # | Problem | Root Cause | Solution | |---|---|---|---| | 1 | Password bhool gaya | Too…

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Best Practices

🔑 | # | Practice | Impact | |---|---|---| | 1 | Use 15+ character passwords/passphrases |…

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History — Timeline

✨ | Era | Year(s) | Event | |---|---|---| | Ancient | Ages | Military passwords…

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Glossary

🌟 | # | Term | Meaning | |---|---|---| | 1 | Password | Secret text string for identity…

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Disclaimer

🚀 Yeh article educational purposes ke liye hai. Password security decisions ke liye…

Comparison

Strong vs Weak Password

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Example: password123

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Length: < 8 characters

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Character types: Only lowercase/digits

Comparison

Password Hashing Algorithms — Comparison

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MD5: 1991

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SHA-1: 1995

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SHA-256: 2001

Comparison

Password vs Passkey vs Biometric

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What it is: Text string you remember

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Auth factor: Something you know

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Phishing risk: High

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Quick Quiz

Quiz — Question 2

Complete! 🎉

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