NETWORK SECURITY - DES (DATA ENCRYPTION STANDARD) ALGORITHM

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DES algorithm follows the Feistel Structure
Most of the Block cipher algorithms follows Feistel Structure

BLOCK SIZE - 64 bits Plain Text
No. of Rounds - 16 Rounds
Key Size - 64 bits
Sub Key Size - 48 bits
No. of Sub Keys - 16 Sub Keys
Cipher Text - 64 bits

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Very clear in depth explanation of DES, thank you for your time and effort sir. I appreciate it.

kikoooooo

The best tutorial I've found for DES. Thanks a lot with lots of respect sir!!

soubarnobanerjee

thank you for this in-depth explanation of the des algorithm. i hate it when there are these "explanation" videos that use some analogies, wave their hands, have all these flashy and well-made but distracting animations, and avoid maths as if it were fire, and in the end leave you as clueless about the thing that you came to understand as you were before you started to watch the video. i very much prefer your style: a smart man with a marker in his hand, a white board on his wall, and a few printed diagrams and tables, throwing all that detailed, well-thought explanation of the complicated topic at hand at you, forcing you to think, and rewatch, and think again, and feel dumb sometimes, but in the end, once you're done with the topic, it doesn't just make you feel like you've learnt something, you know you've learnt something, because you can feel the pain of it sinking in your head. and it is so satisfying. now i actually know how this des algorithm works! thanks!

michalbotor

Highly appreciate your Hardwork Sir! There should be not dislike for this man he is teaching with heart. Respect from Pakistan :)

fatimarizvi

Thank you sir for your time. Teachers like you deserve a good teaching position in colleges with handsome salary. I will really help me in my exams. Thanks again!

ajaykudva

sir it was a perfect video from which a person with 0 knowledge can also understand the concept and make it to 100%
Looking forward to Learn More . Happy Learning !!

chiragagrawal

I'm learning this in my course at the moment. I have to say, I did not understand at all what my lecturer was talking about, but your explanations were so much more clear and in-depth.

nivasanbabusrinivasan

This is why youtube is better than university

qamerha

Thank you very much sir for teaching a thing
which seems to be the size of a mountain so patiently and wonderfully, step by step.

bharatchauhan

Clearly, I can say, this is the best source to learn DES. Cleared all my doughts. Thank You Sir, for your efforts.

s_yogesh

Awesome lecture no words for it, I confused with my book (forouzan ) to understand it, sir you play a very important role in my concept .I found your cryptography lecture is awesome now I can read my book again for better understanding, thank you sir keep doing...such great job.

akshaysingh

Sir, I am from Kerala. I am saying this from the bottom of my heart, you are literally great and respected for your effort for making such an easy and understandable thing to all the beloved students.

anualexander

Really useful. The first time I understood DES algorithm in so many years

subashiniselvarajan

All Videos of Sundeep Saradhi are really helpful in study. Great Efforts Sir. Really Thankful to you from bottom of my heart...

ShaileshBhise

Clear and well explained.
Keep this going Prof.
Heartfully appreciate it.
Great Work !

snj

concept was explained very clearly thank you for making this video sir

geethag

Thank You sir for uploading these quality videos. Because of these videos i am going to write my college exams.

sambhavkumath

Well done! Nice explanation: easy and understandable.

TheVinitarantino

Thank you sir ...to I wrote exam very well because of you sir thank you very much sir...

ravalil

hands down the best explanation for des I have found so far

mvssingh

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