Master Symmetric Encryption in .NET: A Step-by-Step Guide 🔐
Learn how to implement secure symmetric encryption in .NET with clear, practical examples. Enhance your security skills today!

Milan Jovanović
7.7K views • Apr 15, 2025

About this video
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Get the source code here: https://www.patreon.com/milanjovanovic
In this video, I explain how to implement symmetric encryption in .NET using C# to protect sensitive data like API keys. I cover:
- The difference between symmetric and asymmetric encryption
- How to implement AES (Advanced Encryption Standard) encryption
- Creating proper encryption keys and initialization vectors
- Complete code walkthrough for encrypting and decrypting data
- Practical application for securing API keys
This encryption technique is perfect for developers who need to store sensitive information securely while still being able to use it in their applications.
Implementing AES Encryption With C#
https://www.milanjovanovic.tech/blog/implementing-aes-encryption-with-csharp
Check out my courses:
https://www.milanjovanovic.tech/courses
Read my Blog here:
https://www.milanjovanovic.tech/blog
Join my weekly .NET newsletter:
https://www.milanjovanovic.tech
Chapters
0:00 Symmetric Encryption
1:53 Implementing AES Encryption
7:44 Implementing Decryption
Want to unlock Modular Monoliths? Go here: https://bit.ly/3SXlzSt
Get the source code here: https://www.patreon.com/milanjovanovic
In this video, I explain how to implement symmetric encryption in .NET using C# to protect sensitive data like API keys. I cover:
- The difference between symmetric and asymmetric encryption
- How to implement AES (Advanced Encryption Standard) encryption
- Creating proper encryption keys and initialization vectors
- Complete code walkthrough for encrypting and decrypting data
- Practical application for securing API keys
This encryption technique is perfect for developers who need to store sensitive information securely while still being able to use it in their applications.
Implementing AES Encryption With C#
https://www.milanjovanovic.tech/blog/implementing-aes-encryption-with-csharp
Check out my courses:
https://www.milanjovanovic.tech/courses
Read my Blog here:
https://www.milanjovanovic.tech/blog
Join my weekly .NET newsletter:
https://www.milanjovanovic.tech
Chapters
0:00 Symmetric Encryption
1:53 Implementing AES Encryption
7:44 Implementing Decryption
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Video Information
Views
7.7K
Likes
405
Duration
11:39
Published
Apr 15, 2025
User Reviews
4.6
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