SHA256 Hashing in C#

Jackson Mackson asked:

I have tried some online conversion tools for converting different files to SHA256 hashes.

I have three question :

1- Whenever I convert an exe file to a SHA256 hash, what does the converter exactly do ? does the whole content of the file get converted to the hash code or just simple attributes like name and size ,.. .

2- How can do it in C#, for example reading exe files and then converting them into hashes.

3- If I convert infected files into hashes, can I use them to detect viruses ?

I need to know this because I really need to learn how antiviruses really work.

Tags: C#, Security

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