📌 Public Key Infrastructure (PKI) Summary
Public Key Infrastructure, or PKI, is a set of technologies and rules that help keep digital communications secure. It uses a system of digital certificates and encryption to verify the identity of people, devices, or websites. PKI makes sure that the information sent online is private and has not been changed by anyone else
🙋🏻♂️ Explain Public Key Infrastructure (PKI) Simply
Imagine PKI is like a digital passport system. Just as a passport proves your identity at the airport, a digital certificate proves your identity online. The public and private keys act like a lock and key that only fit together, keeping your conversations and information safe from prying eyes.
📅 How Can it be used?
PKI can be used in a project to secure user logins and encrypt sensitive data transfers between clients and servers.
🗺️ Real World Examples
When you visit a banking website with HTTPS, PKI is used to issue a digital certificate for the site. Your browser checks this certificate to verify the banknulls identity, and then uses encryption to protect your personal and financial information during the session.
Companies use PKI to secure email communications by digitally signing and encrypting messages. This ensures that only the intended recipient can read the email and that the sendernulls identity is verified, preventing fraud and data leaks.
✅ FAQ
What is Public Key Infrastructure and why is it important?
Public Key Infrastructure, or PKI, is a way of making sure that digital messages and transactions are private and trustworthy. It uses digital certificates to confirm who or what you are connecting to online, like a website or a person, and helps keep your information safe from prying eyes or tampering. Without PKI, it would be much harder to know if a website is genuine or if your messages are being intercepted.
How does PKI help keep my information safe when I use the internet?
When you visit a secure website or send an encrypted message, PKI is working behind the scenes to check identities and scramble your data so no one else can read it. It acts like a trusted referee, making sure you are really talking to the right website or person and that your information stays private as it travels across the internet.
Where might I come across PKI in everyday life?
You use PKI whenever you see a padlock symbol in your web browser, which shows that a website is secure. It is also used in digital signatures for emails and documents, smart cards for secure entry, and even in some mobile apps that need to confirm your identity or protect your data.
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🔗 External Reference Links
Public Key Infrastructure (PKI) link
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