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Name: Certificate_authority.md

Version: 1.0.0 Author: A'nil Cyborg Author URI: https://aliens.company Requires: Aliens Wiki / HIEN…

Overview
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Name: Certificate_authority.md — Quick Facts

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Property: Detail

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Concept: Certificate Authority (CA)

Type: Web Communication / Protocol /…

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Purpose: Digital certificates issue karna…

Topic 1
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Infobox

📚 | Property | Detail | |---|---| | Concept | Certificate Authority (CA) | | Type | Web…
Topic 2

History

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Multiple CAs market me aaye:…

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Extended Validation (EV)…

Browser vendors ne root…

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Certificate Authorities/Browser…

Topic 3
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How Certificate Authority Works

🎯 Certificate issuance ka complete flow: `mermaid sequenceDiagram participant W as Website…
Topic 4
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Certificate Trust Chain

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Root CA ki private key offline…

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Day-to-day certificate issuance…

Agar Intermediate compromise ho…

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Multiple Intermediate CAs alag…

Topic 5
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Certificate Validation Types

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Sirf prove karo ke domain par…

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Let's Encrypt sirf DV certificates…

Sabse fast aur sabse common

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CA organization ke legal documents…

Topic 6
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Certificate Types by Purpose

| Certificate Type | Purpose | Example Use | |---|---|---| | SSL/TLS | Website encryption…
Topic 7
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Major Certificate Authorities

🌟 | CA | Founded | Type | Free Option | Certificates Issued | Notable |…
Topic 8
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Certificate Lifecycle

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Maximum allowed: 398 days (13…

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Let's Encrypt: 90 days…

Pehle: 2-3 saal valid hote the (ab…

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Future: Google 90-day maximum…

Topic 9

Certificate Revocation

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CA ek list publish karti hai…

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Browser yeh list periodically…

Problem: List badi hoti jaati hai,…

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Real-time check: browser CA se…

Topic 10
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Certificate Transparency

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Mandatory: Chrome aur Apple Safari…

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Public Logs: crt.sh, Google CT…

Monitors: Domain owners ko alert…

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Signed Certificate Timestamps…

Topic 11

Private and Internal CAs

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Internal websites aur services ke…

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Mutual TLS (mTLS) — client…

Code signing for internal tools

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IoT device certificates

Topic 12

Common Mistakes

Mistake 1: Certificate Expire Hone Dena Production website ka certificate expire ho jaana…
Topic 13
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Best Practices

🔑 1. Auto-Renewal Setup Karo Manual renewal bhoolne ka risk hota hai. Certbot, acme.sh, ya…
Topic 14

Interview Questions and Answers

Q1: Certificate Authority kya hai aur HTTPS me uska role kya hai? A: Certificate…
Topic 15
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Glossary

🌟 | Term | Meaning | |---|---| | Certificate Authority (CA) | Trusted organization jo…
Diagram
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Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

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HTTPS

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TLS

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Public key infrastructure

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X.509

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Let's Encrypt

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Encryption

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

Name: Certificate_authority.md ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

Name: Certificate_authority.md ka 'Concept' kya hai?

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