came here to learn how to find IP inverse only for him to give it as homework. bruh. found the answer though: IP inverse is: 41357286. It's the position number of each digit in IP (26314857)
i dont understand how permutation works. what is the logic of the bit rearrangement? why is 3 bit going to first position? in 64 bit we say the first 4 ODD bits go to the 4 last vertical boxes of the last column but i cant understand this
Nice lesson, thank you very much. I got one question in S_BOX, After performing exclusive OR operation which part goes to S0 and which part goes to S1, or we can choose any part for S0 and any part fo S1?
Hello there. After XOR the first 4-bit on the left are S0 as the last 4-bit are S1! Starting from left to right! Please remember that the 1st and 4th bit of S0 are row wise and 2nd and 3rd bit are column wise! Same for S1!
One of the most concise, thorough, and easy to understand explanation of DES available to the public!
Thank you very much. This video is much better than what my professor explained covering the whole week class.
This is the best approach to understanding is by hand, pen and paper. Thank you
I know I am kinda off topic but does anybody know of a good place to watch newly released series online?
@Eden Jordy Flixportal :P
@Tanner Emery thanks, I signed up and it seems like they got a lot of movies there =) I really appreciate it!
@Eden Jordy You are welcome =)
Really the best explaination of DES i could find on YT
Am confused about S-DES before watching your video. Thank you for your briefly explanation and example.
came here to learn how to find IP inverse only for him to give it as homework. bruh.
found the answer though: IP inverse is: 41357286. It's the position number of each digit in IP (26314857)
Really the best done having an example. I loved it.
Very well explained, clear, and concise
7:03 key
23:35 round output
your explanation is amazing and easy to understand ✨
Thank you so much for this breakdown
i dont understand how permutation works. what is the logic of the bit rearrangement? why is 3 bit going to first position? in 64 bit we say the first 4 ODD bits go to the 4 last vertical boxes of the last column but i cant understand this
Chris
we do it in order to create confusion
you explained so well, thanks dude!
Could you do on AES algorithm?
Thank you very much sir✨️
crazy explanation
Outstanding stuff
excellent explanation
Thanks alot...
quite clear sir
Thank you
Thank you!
Great job
from Ethiopia
Nice lesson, thank you very much.
I got one question in S_BOX,
After performing exclusive OR operation which part goes to S0 and which part goes to S1, or we can choose any part for S0 and any part fo S1?
Hello there. After XOR the first 4-bit on the left are S0 as the last 4-bit are S1! Starting from left to right! Please remember that the 1st and 4th bit of S0 are row wise and 2nd and 3rd bit are column wise! Same for S1!
Thank you!