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============================================================================ Article Name : Passkey…

Overview

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

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Property: Detail

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Full Name: Passkey (FIDO2 Discoverable…

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Category: Passwordless Authentication

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Based On: FIDO2 / WebAuthn / CTAP2 Standards

Topic 1

Infobox

📚 | Property | Detail | |---|---| | Full Name | Passkey (FIDO2 Discoverable Credential) | |…

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Passkey Kya Hai — Simple Analogy

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Traditional password = ek chaabi…

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Passkey = taala tumhari…

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Password Ka Problem — Kyu Passkey Chahiye

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80%+ data breaches me compromised…

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Average password reset cost per…

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Phishing attacks ka #1 target:…

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Public-Key Cryptography — Foundation

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Tumhare device me stored hai

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Kabhi bahar nahi jaati

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Sirf tum use kar sakte ho…

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Website/server ke paas stored hai

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Passkey Kaise Kaam Karta Hai

🔑 Passkey do phases me kaam karta hai: Phase 1: Registration (Passkey Create) 1. Tum…

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Registration Flow — Mermaid Diagram

✨ `mermaid flowchart TD A["User clicks<br/>'Create Passkey'"] --> B["Server…

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Login Flow — Mermaid Sequence

🌟 `mermaid sequenceDiagram participant U as User participant B as Browser participant D as…

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Password vs Passkey — Detailed Comparison

🚀 | Aspect | Password | Passkey | |---|---|---| | What user does | Type text string | Touch…

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Platform Passkeys vs Synced Passkeys

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Private key sirf ek device me…

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Us device ke bina login nahi ho…

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Example: Hardware security key…

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Pro: Maximum security — key copy…

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Device Support aur Ecosystem

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Cross-Device Authentication

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Phone aur desktop Bluetooth range…

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Phone pe passkey stored ho

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Both devices me internet…

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QR code one-time hota hai

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FIDO2 Standards — WebAuthn + CTAP2

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W3C standard — browser side ka…

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JavaScript API jo website ko…

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navigator.credentials.create() —…

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navigator.credentials.get() —…

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Passkey Security Model — Kyu Phishing-Proof

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Jab passkey create hoti hai, exact…

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Login ke waqt browser…

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Agar fake site hai (g00gle.com),…

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Password me tum aur server same…

Topic 14

What Server Stores — Public Key Only

✨ Yeh samajhna critical hai: Password World: ` Server database me: username: "anil"…

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Passkey vs Other Auth Methods

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Major Platform Implementations

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Sync: iCloud Keychain se across…

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Storage: Secure Enclave…

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Auth: Face ID, Touch ID, device…

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Supported: Safari, all iOS/macOS…

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Enterprise Passkey Deployment

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Users ko passkey offer karo as…

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Password + MFA still primary

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Early adopters try karte hain

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Login screen pe passkey default…

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Passkey Adoption Status (2024-2026)

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Google accounts

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Apple ID

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Microsoft accounts

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GitHub

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Limitations aur Challenges

🎯 Passkey revolutionary hai, lekin perfect nahi: Current Limitations: 1. Account recovery…

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Common Problems aur Solutions

⭐ | # | Problem | Root Cause | Solution | |---|---|---|---| | 1 | "Passkey option nahi dikh…

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Best Practices

🔑 | # | Practice | Impact | |---|---|---| | 1 | Jahan available ho wahan passkey create…

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History — Timeline

✨ | Era | Year(s) | Event | |---|---|---| | Pre-FIDO | 2000s | Password fatigue increases,…

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Glossary

🌟 | # | Term | Meaning | |---|---|---| | 1 | Passkey | Passwordless credential based on…

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Disclaimer

🚀 Yeh article educational purposes ke liye hai. Security implementations ke liye official…

Comparison

Password vs Passkey — Detailed Comparison

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What user does: Type text string

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What's stored on server: Hashed…

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Phishing risk: High (user types on fake…

Comparison

Platform Passkeys vs Synced Passkeys

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Storage: Single device only

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Device loss: Key lost forever

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Multi-device: One device only

Comparison

Passkey vs Other Auth Methods

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Phishing proof: No

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User effort: High

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Server breach 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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