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all right I just did this whole video my microphone wasn't plugged in so yeah so we're gonna talk about a lot of interesting things here so interesting that you should probably just hit subscribe right now so we're gonna be talking about digital signatures let's get started Pluralsight it's one of the first learning platforms I used as a software developer you can get a completely free trial and start learning by following a path on pretty much anything the learning paths combine numerous courses giving you the step-by-step path to reach your goals or you can find individual courses on pretty much anything maybe you want a class on cryptography security Python programming networking maybe Java you name it and they probably have it I can genuinely say that Pluralsight helped me advance my skills and my career I'll leave a referral link in the description go check it out so this kind of scoops together all of the information we've talked about in my cryptography crash course or micro series or whatever you want to call it and it's related to this and it uses a lot of these principles but it's not exactly the same thing so we've talked about cryptography now we're talking about digital signatures which is a little bit different than cryptography but uses a lot of the same concepts and works in a similar way it's different in its purpose what we're gonna be talking about in this video is how to verify if a message came from the intended sender or if the the message has been tampered with that is different than cryptography which is to make a message secret in in delivery so very similar but just a tiny bit different and it's probably just going to take these things that we've talked about and just flip it around just a little bit so that we're working in a different direction and you know exactly what I mean in just a second but first let's take a look at this image which is an illustration of public key encryption or another word would be asymmetric encryption where we have two keys a public key and a private key and the the public key is used to encrypt so Bob can encrypt a message designed to be sent to Elise and the only person that can read this message is elise because she actually uses her private key to decrypt it digital signing and confirmation is going to flip this around a little bit such that it looks like this elise is now going to use her private key to sign a message and then bob is going to use her public key to verify that that message came from her so let's take a little moment to talk about the top part we have a message we have a private key and we mix these together and that goes to Bob but it goes to him in such a...