NETWORK SECURITY - DES (DATA ENCRYPTION STANDARD) ALGORITHM 

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

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!

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

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

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!

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.

This is why youtube is better than university

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

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

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

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.

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 !!

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.

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.

Thank you so much! This video lifted many puzzles in my assignment of Applied Cryptography.

Thank you so much for such an in-depth and clear explanation. You explained it all in one take and it was nice and steady. Thanks. Keep on spreading education and help engineers like us!

You are a great teacher indeed. A very clear explanation. Much appreciated. Thank you.

Great video ..I was literally struggling to understand DES , but then came across your video. Great effort sir, hats off!

Thank you so much, sir! That's a perfect explanation. . The best explanation for DES!

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

Best explanation of DES. Thank you very much sir, you've made my life much easier.

Well done! Nice explanation: easy and understandable.

The best and complete explanation I found on youtube, thanks for the effort sir!

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

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

A very clear and Detailed description of DES!!. Amazing!

Great Job. Thank you sir. I was looking for a detailed explanation video like this. Now I got how DES is working.👍

Crystal clear explanation... we need teachers like you.. thanks a lot sir

Very useful!! Everything is crystal clear!! Keep up the good work

AWESOME VIDEO !!!! GREAT TEACHING STYLE, CLEARLY UNDERSTOOD THE CONCEPT..THANKS SIR! :)

Sir. you are doing great work. You have explained every single step in an easy way.

Appreciate your patience while teaching !!

Thank you for the video - excellent and nice pace, well done for sharing

Beautifully explained sir. Crystal clear explanation.

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

Thanks for saving me and all my friends paper. Wonderful work!

Well and deeply explained tutorials ... Thank-you sir

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

Cleared my all doubts and your explanation is very clear and easy.Thank you so much sir

Wow clear explanation of DES in youtube 👏

Wonderful work, thank you sir for sharing your knowledge on this topic in detail...

Thank You Very Much for your great effort Sir and explain all the steps elaborately.

explained step by step, with all required details and with dedication and devotion. Well done Sir.

Thanks, You Very much Sir, for this wonderfully detailed lecture about DES you cleared my every doubt from DES. Thank You, Sir.

me dedication ke me explanation ke me clarity ke ..TAKE A BOW!

I am really impressed how clearly you explained each and every steps sir. thank you very much.. S-Boxes are very important for security.

Sir I'm foriegn and I get more Benefit for this lesson and also More lessons I saw so keep doing it I will be with U sir drop more vedios About CSE we are waiting for U 👏👏

Excellent sir very clear explanation of DES. Thank you sir

Sir, I have to thank you again because these videos have saved me so much time and I've understood so much better.

Really very helpful in understanding DES completely.. Thank you soo much..

It's Very Helpful for me Sir...Thank you so much for your support and effort .

very well explained Sir, easily understood all the topics. Thank you so much, Keep on making such videos

Well explained and best video for DES

awsome explation sir i got a clear idea on DES algorithm

A thorough and excellent teaching method 👍🏻

THANK YOU FOR YOUR DEEP CEREBRATION AND WONDERFUL LECTURE.

Excellent explanation from you, very clearly understood each and every step in detailed manner.

NO one explained as good as you Sir ....Awesome content

Very Detailed Explanation, very nice

Its open and clear. I think this is a clean elaboration of this algorithm.

Thank You So Much, Sir, you are all clearest my concept about DES and Which help me on my assignment a lot today so thank you again.

Best tutorial on DES... Thank you sir

Understandable explaination I liked this lecture very much

Best video for DES explanation.

You were so sweet enough to spend this much time for us. thank you very much sir !

Thank you for the awesome content ! Keep up the good work sir !

WE FEEL THE SOUND OF HARDWORK..HATS OFF SIR

Extremely good video Sir! Thank you so much. You teach very well :D

Very clear in deapth explanation of DES 👍

What a clear explanation sir! Heartfully thanks to you.:)

very use full to understand the DES algo

amazing video..hats off to your passion sir..we are grateful to you

Excellent, Mind Blowing explanation Sir.

very well explained! Thank you sir !

The best explanation for DES ..... thank you bro ♥

Excellent explanation👏 very clear...thankyou so much for your help

Awesome explanation,very clear and easy to understand sir

thanks after 4 lectures of 90minutes each what i lean is nothing and all things i learn in 1 hour video thankssssssss......

Appreciate your effort, sir. Thank you very much.

SIR, WOW.. what an explanation. I really appreciate the time and effort.

Definitely dropping a like. Helping me out so much.

Sir you are the best teacher of ISS Thanx a lot for the lectures .

Clear and Well explained Sir. Thank you.

Super sir Mind pothunondiiiii lopala.... 😱😱

thanks for making such a detailed video! Appreciate your efforts so much sir!

Thank you sir ,I understand very clearly about DES algorithm

thank you sir, i have a computer security presentation tomorrow on DES algorithm. i am done with your explanation

Would like to thank you for such a great way of explanation

Sir, I saw many playlists of you sirr..... But this is the masterpiece 👌

That video help me a lot in DES. Thanks for that.

the way you explained was amazing sir, I understood the complete concept all thanks to you sir!

Thank you sir, very good explanation of even the smallest procedures.

you are god level sir. Excellent explanation. May God bless you.

Amazing teaching sir...!! understood everything.

Very clear presentation. Greetings from Poland

Great explanation. Thank you.

Best explanation so far!

Great Job at explaining it .... I really appreciate the hard work you put in ..

It's an amazing video for learning DES.Thank you very much :)

Vera very very useful amazing sir ....thnx a lot,🙏