AES steps (SubBytes, ShiftRows, MixColumns)

[@ajitsakri9888]

Hey Thanks, You made it really clear how this works. RUclips needs more people like you

[@rishipatel796]

At 4:10 the answer is supposed to be 0xF9 not 0xF5

[@ebrahimmahyoub6993]

True....3×53=159 ...= f9 because 15 in hex is f

[@bowdlerize]

Why do we use b1 to xor the overflow and not anything else, why is it so special?

[@Scott_Raynor]

6:09 why do you XOR with 1b here?

[@Info_World1714]

Can't understand Mix column process please explain more easy way or show how you calculate

[@Tristoo]

he just did

[@marcusmedina9940]

@@Tristoo He did many of the calculations off screen and didn't explain why he did certain things.

[@amrahmed2352]

Amazing video , thank you so much

[@Marsianer-ly3vg]

which calculator are you using to calculate the A6 XOR 53

[@fatalmediocrity]

thank you so much!! its really understandable than what my lecturer have taught me lmao

[@a.y5742]

Aren't you supposed to XOR by 0x11B in theory when we do mixcolumns?

[@fab4andthejkflipflops6]

If there is an overflow, and you XOR by 0x11B, then the leading 1 just goes to 0. He just ignores it.

[@thengakola6217]

mahn.... mixing columns are tough

[@swagnessolaf589]

Thank youuuu i got it🙏🙏🙏

[@kpinton1969]

Great!

[@elv_s5661]

please explain how to calculate these steps with ms.excel

[@pgoodboy3]

Maybe using programming languages to solve is more preferable ?

[@Tristoo]

this isn't an excel video

[@pgoodboy3]

@@Tristoo lol savage

[@marvin47]

Better use html

[@itscrystal6328]

Thank you

[@Drew451]

nah mixcolumn cal was wrong

[@mdshahidan9115]

Omg ser follow help

[@haribanshi]

2*39 gives 72????

[@lstsrvivor00]

Its in hex. Hex 2 * Hex 39 = 72

[@marcusmedina9940]

@@lstsrvivor00 Should't Hex 3 * Hex 53 = F9 then? He put F5.