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Digital Certificate

Digital certificate (ya public key certificate) ek electronic document hai jo kisi entity (website,…

Overview
🌟

Digital Certificate — Quick Facts

📌

Property: Detail

🎯

Full Name: Digital Certificate / Public Key…

Category: Cryptography, Key Management,…

🔑

Standard: X.509 (ITU-T / ISO)

Topic 1
📥 📥 🧠 🔬 💡 🎯

Infobox

📚 | Property | Detail | |---|---| | Full Name | Digital Certificate / Public Key…
Topic 2
💡 📊 🔬

Aam Zindagi Me Samjho — ID Card Analogy

💡

Government = Certificate Authority…

🔑

Tumhari photo + details = Website…

Official seal = CA ki digital…

🎯

Expiry date = Validity period…

Topic 3
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History Aur Origin

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1976 — Diffie-Hellman ne…

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1988 — X.509 v1 standard introduce…

1993 — X.509 v2 release hua with…

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1996 — X.509 v3 aaya with…

Topic 4
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Digital Certificate Kaise Kaam Karta Hai

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Kya certificate expired to nahi?

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Kya domain name match karta hai?

Kya issuer (CA) trusted hai?…

🎯

Kya CA ki digital signature valid…

Topic 5
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Certificate Fields — X.509 v3

🔑 Ek standard X.509 v3 digital certificate me yeh fields hoti hain: | Field | Description |…
Topic 6

Certificate Types

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DV: Sabse fast aur cheap — sirf…

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OV: Organization ka legal name bhi…

EV: Sabse strict verification —…

Topic 7
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Certificate Authority Hierarchy

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Root CA offline rakhte hain…

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Intermediate CA daily operations…

Agar Intermediate CA compromise…

🎯

Let's Encrypt — Free, automated,…

Topic 8

Certificate Lifecycle

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ACME protocol (Let's Encrypt) —…

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Certbot — popular ACME client

cert-manager — Kubernetes me…

Topic 9
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Revocation — CRL Aur OCSP

📚 Agar koi certificate compromise ho jaye (private key leak, etc.), to usse revoke karna…
Topic 10
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Best Practices

💡 Website Operators / Server Admins Ke Liye 1. Hamesha HTTPS enforce karo — HTTP se HTTPS…
Topic 11
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Common Mistakes Aur Pitfalls

🎯 1. Certificate expiry miss karna — Production outages ka #1 cause. Automation se solve…
Diagram
📥 ⚙️ 🔬 💡

Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

📖

Public-key cryptography

🔗

Transport Layer Security

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HTTPS

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Encryption

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Diffie-Hellman key exchange

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RSA

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

Digital Certificate ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

Digital Certificate ka 'Full Name' kya hai?

Complete! 🎉
COMPLETE

Digital Certificate Complete!

Aliens Wiki · HIEN · Cinematic Knowledge

Digital Certificate Complete

➡️

Public-key cryptography

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