Let's try out the hash function on an image that sits on my desktop. The image is named router. And that's it. Let's hash it using Sha 256. jpg. So that's the hash value of the image. All right.

Let's take the same image. Let's play around with the highlights. That's not. Yeah, let's play around with the highlights. Let's highlight the image a little bit. Let's save it.

Let's do the same hash function and we get different hash value. Any manipulation whatsoever will change the hash value. A hash function number one priority is to be collision resistant. There will be no two messages that are different with the same hash value.