Public Key Infrastructure | Day 10 | Complete Cybersecurity course

Опубликовано: 21 Август 2026
на канале: Cyber Bhudev
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What is Public Key Infrastructure (PKI)?

In today's world, we share a lot of sensitive information online, such as passwords, credit card numbers, and personal data. To keep this information safe, we need a system that ensures only the intended recipients can read it. This is where Public Key Infrastructure (PKI) comes in.

*PKI is a framework that uses digital certificates to secure online communication.* It consists of two main parts:

1. *Public Key:* This key can be shared with anyone.
2. *Private Key:* This key is kept secret and is only held by the owner.

When you want to send a message to someone, you encrypt it using their public key. Only the person with the corresponding private key can decrypt it.

*PKI has many uses, including:*

*Securing websites:* When you visit a website that uses PKI, you can be sure that your connection is encrypted and your information is safe.
*Securing email:* Using PKI, you can encrypt your emails so that only the intended recipient can read them.
*Digital signatures:* PKI can be used to create digital signatures on documents, which ensures they are authentic and haven't been tampered with.

*In this video, we'll learn more about PKI, including its various uses and how it works.*

*Topics covered in the video:*

The basics of PKI
Public and private keys
Digital certificates
Uses of PKI

*This video is useful for anyone who wants to learn more about online security.*
If you're a developer, a cybersecurity enthusiast, or simply curious about keeping websites secure, this video is for you!

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