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now what is going on guys today i want to talk about hmac so keet hashed message authentication code what it is why you need it and where it is used in the computer science and it world so if you look up this term hmac on wikipedia you will find something like itamp;#39;s a specific type of message authentication code involving a cryptographic hash function and a secret key yeah well thatamp;#39;s kind of accurate but letamp;#39;s maybe letamp;#39;s maybe start a little bit easier right letamp;#39;s letamp;#39;s start with the context of this okay so letamp;#39;s first look at this word here hash letamp;#39;s quickly talk about what a hash function is so a hash function is a function right so something that maps an input to an output and what this function does is you give it an arbitrary amount of bits essentially so in the real world you give it like a string or i donamp;#39;t know a number or whatever but internally itamp;#39;s all bits right and you give it like some inpu
