NETWORK SECURITY - BLOCK CIPHER MODES OF OPERATION

[@maclops90]

0:10 - Intro 2:15 - Explanation 4:10 - Electronic Code Book Mode 7:15 - Cipher Block Chaining Mode 12:25 - Output Feedback Mode 19:55 - Cipher Feedback Mode 22:50 - Counter Mode

[@srinicissp6076]

Absolute value add from you sir !. appreciate this effort.

[@ayahali864]

I've been watching your videos throughout my Computer Security course and I trully thank you for helping me a lot in understanding the topics more!!

[@nayikotimounika]

It's not an exaggeration to say that ur explanation is crystal clear..

[@palakpopat2069]

Sir i can't understand this topic from our professor and after watching this video i can understand clearly all videos related to network security, playlist is very easy to understand, thank you so much

[@dencydaniel9582]

All your videos are really helpful .Explanation is very clear and effective. Thankyou so much for your efforts sir

[@srijanidebnath3691]

Thank You very much Sir for discuss all the Block Cipher Modes elaborately. It's very helpful.

[@maheshb3756]

Sir you have helped me a lot sir during my exams time. Your explonation is very goood and clear. Keep maintian that sir. You are one of the best teacher in my study career. I was scared about this subject and i found you on youtube. Now i learned lot of subject. Thank you very much sir.

[@TheShakthirvd]

I was racking my brain how to complete this chapter! Thank god! I found you on KZbin!

[@sundeepsaradhi]

hi aravind thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@shwetharamesh6701]

I just wrote my data network exam today and it went well because of you sir. Thank you so much.

[@srinicissp6076]

Fantastic explanation Sundeep garu . Many thanks for taking time and sharing your knowledge .

[@shimelisabera6542]

Thank you it is helped me a lot during this quarantine time to understand this chapter nicely !

[@Deepu5664]

Just too Good Sir....No words for you....Grand salute to your explanation....So many thanks sir :)

[@jagadisharepalli3264]

Thank you soo much sir ..... Couldn't imagine of passing CNS without your videos .. :-)

[@prajaktakulkarni6033]

thak you so much sir. I see every vdo of u. Network security topics when i see in book, it feels like i am not getting a singl word. But once i see a single vdo of u, i feel very satisfied with that topic. Thank you sir. U r doing a grt job. Keep it up and u will keep getting more blessings. God bless u.

[@sundeepsaradhi]

hi kulkarni thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@dragonore2009]

Good explanation. At the university we had to make a block cipher written in python, they are fun to write and recommend anyone in the security field to write one to gain a good understanding of them.

[@pa32779]

Could you suggest a video or two on learning to implement in Python?

[@shohratalikhan6620]

Thank god..... Next week , i have exam ... And i really didn't wanted to waste the hours on this topic.. Thanku so much..👍👍😊

[@PSRinfo]

sir,because of you wrote exam very well . thank you so much sir,

[@sundeepsaradhi]

Hi that's nice you hear from you and may I know your name and which college you are studying. All the best for your rest of exams.

[@zufishan3016]

Sir you are too good...The way you teach is so amazing...Each time when iam in need of some topics I first find your video and just when it's there I feel like the topic is done... Thankyou So much ..Ua videos are so helpful sir ...Plz always teach us like this only...

[@harshinivemula8836]

Sir you are amazing , i have written exam very well because of u

[@amskhadhiri4636]

Thanks sir,your sessions are very nice,and you would have explained very well.

[@ch_kal8414]

This is what I would call a perfect tutorial...Great Work👍 and thank you

[@shivaswaroopnk]

Last-minute prep for exams :). So methodically explained!

[@geetakandari7219]

Thank you sir you made this complex topic to be understood in a very easy way.

[@AnkitaYadav-mn9vx]

I think there has been a confusion between CFB and OFB , OFB mode operates on full blocks of plaintext and cipher text not on s-bit set while CFB operates on s-bit. Thank you by the way, your videos are very helpful.

[@medabottpro9124]

I also think he might have mixed up OFB with CFB

[@Manish7759]

Really a very helpful video!!! much respect for you , from Nepal!!

[@devislight]

Thank you..... Awesome... Simple, clear, concise and precise...

[@sundeepsaradhi]

hi devis thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@upliftingspirit6873]

1. Don't you lose the 64 - S bits by considering only S bits? 2. In the first step of the shift register, how can you select only S bits? That means during the entire encryption process you will work with S bits.

[@swaroop.thammineni]

really helpful for my MS. didnt need to open textbook at all.

[@malarmathis9190]

Really a very helpful video sir .. thank u Soo much

[@yashpandey350]

Your intro made me low my lappy volume and your voice made me increase the volume.

[@javi3830]

Easy for someone to explain it when they understand it well!

[@0marfans]

Your hand writing is amazing

[@PIYUSH-lz1zq]

Insane explanation 👏

[@gizachewfentahun6854]

The way of expression is very interesting ,but what i want to say please take simple plain text as sample message and show how divide the message into block and how we Apply the encryption process!!!

[@nasirkhanafzal8105]

Super sir, all concepts are clearly understand. thank you sir

[@VedantNaik03]

Best explaination...Thank you so much Sir..!!👍👍👍

[@RajeshA-m6l]

VERY MUCH USEFUL PROFESSOR

[@rajeshreddychimpiri7198]

Tq you sir for your precious time and valuable explanation

[@sundeepsaradhi]

Hi rajesh Thanks for your support towards our channel share our channel with your friends and keep following our channel

[@dr.shemalatha7636]

good day Sir. plz give simple example for block and stream ciphers. your explanation is awesome .

[@sundeepsaradhi]

hi hema thanks for your comment and soon i will try to do that thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@aliceiceberg581]

Prepaing for an exam a night before. And, damn, your videos are awesome. Thank you)

[@dboutdoors3795]

Well done...slow phase explanation....keep it up..thanks

[@sampathpasupuletu4220]

Excellent work 👌

[@liangchenzou6862]

if u are the professor teaching us, no one in the class will fail !

[@nandamneeraj692]

you helped a lot for my exams thanks :-)

[@akshaychopra96]

Very well explained! Loved it.

[@villagesoftwareengineer]

Sir I have one doubt i.e. You have taken plain text as s-bits it means 8bits, now what is the cipher text size, is it 8bits or 64 bits, if cipher text is 8bits how can we give to the next bock as 64-s and s-bits...

[@dhachanamurthydhachanamurt8447]

Superb sir... Tq very much Sir.. 😍😍😍😍😍😍 ....

[@GAbhishekMIS]

Very well explained sir

[@umaisakhan7624]

nyce explination ..Thanx u soo mch Sir

[@villagesoftwareengineer]

What is counter value? Is it group of bits?

[@gannenishanmukhasrinivas8832]

I want in telugu languge brooo U r explaintion is excellent I want more clear languge so if u can say in telugu that is more useful me and my frds too

[@yusufraza939]

Sandeep very well taught , I had a small doubt in output rate cipher when we have N of block you said counter+N -1 why we have used -1 what it means. Please reply..

[@sundeepsaradhi]

hi Yusuf actually if there are N blocks we are considering from 0 so the number of last block will be N-1. Hope your doubt has been clarified and sorry for the delay. thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@FUNNYVIDEOS-ev2on]

thank you sir awesome teaching

[@sundeepsaradhi]

hi thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@MK-ks6pc]

Good explanation sir

[@muratakburakma]

Thank you. Really good explanation.

[@digiground7613]

Hello Sir, thank you for this video. I loved watching as I understood. I would like to know why for the encryption, the algorithm can't just take the entire plain text in order to transform it into ciphertext? In order words, why does it have to always size the plain text in some fixes blocs? And also, what happens when the last plain text size is inferior to the fixed block size? Does the ciphertext will still remain with the same length? Thank you again and hopefully, I will find answers.

[@noelthomasbejoy3089]

Because that's how most algorithms work.

[@emidawm660]

In the output feedback mode, where do the shift register come from?

[@ዘርአዳዊትናሁሰናይ]

THANK YOU VERY MUCH.BUT WHAT IS THE PURPOSE OF INITIAL VECTOR

[@pavant8761]

Sir.... does the PT of 64bits at xor operation is same as what we taken at IV at top or PT is considered only at XOR stage after encryption??? Plzz clarify.

[@sundeepsaradhi]

Plain Text is different from Initialization Vector

[@aniketdeshmane6569]

Greatly explained

[@H2H3H5]

No idea what this is about, but liking anyway

[@shree2710]

I think you have forgotten to add this video in your network security playlist.

[@pankajagrawal8596]

Dear Sundeep, Very well explained. Can you please help me understanding AES CCM mode of operation?

[@sundeepsaradhi]

hi pankaj thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel. sure i will try to help you.

[@shaikhshaheen4132]

Thank u so much sir for giving us your precious time ❤️

[@santoshpata8073]

Thank u so much sir for giving us your precious time ❤️

[@rahatahmed3955]

hello sir. bit of confusion regarding OFB. 64 bits of plaintext or 64bits of initialization value? BTW, I am from Bangladesh. And your videos are awesome👌.

[@sundeepsaradhi]

hi ahmed in OFB and CFB we have to take the plaintext equal to s-bits. here 64 bits are the initialization values.

[@atharvagadiwan5281]

You made this interesting. Thanks

[@PavanKumar-by8dc]

Sir! What is counter value. Y we have to choose that in counter mode ?

[@shapnaramu9569]

Thanks alot... awesome explanation

[@sundeepsaradhi]

hi sana thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@vaishnavianil3968]

Explained so well! Thank you

[@ytkais969]

In chiper block chaining. is the first IV decryption must same with the first IV encryption? please answer me

[@purnimamohanty9526]

please give some examples of each it makes easy understanding

[@jithinmv6516]

You helps a lot sir♥♥

[@tushargupta4239]

Propagating Cipher Block Chaining(PCBC) encryption is given by the equation- Cn=E(k,[Cn-1 XOR Pn-1 XOR Pn] Find out the decryption equation and draw neat figure for both encryption and decryption.(P0 can be considered as NULL). PLEASE SIR GIVE ME THE SOLUTION OF THIS QUESTION AS SOON AS POSSIBLE.

[@sundeepsaradhi]

hi tushar send me an email to [e-mail] i will try to send the required topic to your mail.

[@sajithajohnson7381]

good lectures

[@SerendipityTrails]

Thank you very much sir

[@ikhtiyornematov6183]

Great explanation, thanks)

[@nasirahasnain4141]

Great work indeed.Sir,i need help in RC6 algorithm.Kindly help me.

[@dinnusebastian4615]

Why we are applying encryption algorithm itself in decryption in ofb?

[@arunraju1850]

Meaning of Guru -- Sandeep saradhi 🤗

[@aakarshsharma2006]

Sir please upload a video on International Data Encryption Algorithm

[@kamal98kumar]

Good work sir

[@sundeepsaradhi]

hi Kapil thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@pandubaby3505]

Sir can you please make a video on frequency analysis of simple substitution cipher

[@dhruvthakkar4350]

Are you God?

[@sundeepsaradhi]

hi thakkar thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@mohansrisai7517]

Thank You sir 😇😇

[@vamshidharreddykatikireddy6559]

sir can u explain block cipher principles

[@ananthub1630]

Thank you 😊😊😊😊

[@bhanuj6376]

Sir, I didn't find stream and block cipher video

[@bhaskarbhasku2921]

Nice one sir!

[@sundeepsaradhi]

hi bhaskar thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@ananthub1630]

Great job

[@funontube4591]

Thank u so much sir

[@amartyamukherjee4298]

Sir can you explain how will the block length be equal if we keep on incrementing the counter?

[@sundeepsaradhi]

hi amartya here counter is also represented by number of bits.

[@gangavarapuabhishek8468]

you are just amazing

[@sundeepsaradhi]

hi abhishek Thanks for your interest towards our channel and share my sessions with your friends and keep following our channel and don't forget to subscribe to our channel.

[@yuvrajswar6908]

thanks a lot sir

[@gauravbhandari1184]

Clearly explained❤️❤️❤️

[@darshenjason3164]

Thank you sir

[@sourav5562]

where is the introduction for - BLOCK CIPHER?

[@sundeepsaradhi]

hi sourav kzbin.info/www/bejne/jHvInY2ojshnb8U thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.

[@gangavarapuabhishek8468]

is this concept only theory or there are problems

[@sundeepsaradhi]

hi Abhishek Thanks for your interest towards our channel and share my sessions with your friends and keep following our channel and don't forget to subscribe to our channel.

[@sreejarudra958]

Sir please explain linear cryptanalysis and differential cryptanalysis

[@anandlaggishetti9275]

thanku very much

[@meenarose9592]

Sir.. Can u gve me a example for ths mode of operation