Designing a Secure File Encryptor

Today we begin our new C project by reasoning about how to design a file encryptor, but doing it in a purely secure manner.
How can we make it detect if you've given it a wrong encryption key when decrypting? Can we do this without lowering the overall security of the solution? Where and how do we store the key then?

[@justcurious1940]

This is so interesting, I can't wait to see the implementation, thank u for making this.

[@dr-Jonas-Birch]

I'm glad you like it. Yes I agree, this is an exciting topic :) I have one project in between but then we'll dive into this one. JB

[@AmanKumar-jk1qu]

Woah 😮.

[@dr-Jonas-Birch]

Hehe there is an interesting discussion in the community tab of the channel, which drills into this topic. I recommend reading it too. JB

[@homepunks9040]

when you end your messages with JB, does it stand for your name, Jonas Birch?

[@dr-Jonas-Birch]

Yeah that's right. JB