#18 Data Encryption Standard ( DES ) Algorithm |CNS|

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[@ramachandrudu198]

Wow, you explained in a flash speed 🚄. Understood very well. Thank you ☺️

[@sid4752]

This format is way better than the others in the playlist.
Please continue this way(pen and paper) rather than writing on a sheet.
There's a noticeble audio difference as well.
Thanks!

[@vandrasisunilkumar8771]

Thank you so much madam this is the best TH-cam source I've got for all my semister subjects from a cse background I request you to do more videos on programming languages as well.

[@GeddavalasasaiKiran-kp9lb]

Yes mam❤ we understood

[@kalavakondabharathreddy]

Fabulous explanation.....very thankful to u sister🤗

[@BhuvanNakka]

thank you ma'am, my exam is tomorrow. This video is a life-saver

[@sivas696]

mam..salute..i am watching this @ 2:30 in the mrng and just I had that oohhh moment ("when you understand it")Thanks a lotttt

[@HusshenKumar]

Explanation is wonderful mam. everyone should understand easily after watching videos

[@riteshsharma9838]

Hi mam, I want to tell you that, you are teaching wrong, from 6:17 to 6:24 , the actual process that is done in Initial permutation is,
" The initial permutation is performed on plain text. Next, the initial permutation (IP) produces two halves of the permuted block; saying Left Plain Text (LPT) and Right Plain Text (RPT). Now each LPT and RPT go through 16 rounds of the encryption process. The result of this process produces 64-bit ciphertext ".
And the 64-bit size ciphertext and 48-bit size key is given as an Input to Round 1
and same for all the rounds
Thank you.
please pin this comment if the written text is correct maybe this could help any student to understand the actual process. 🙂🙂🙂🙂🙂🙂

[@Narasimha-ms2up]

Amazing explaination

[@multitalent5]

super teaching mam ❤

[@harishakula238]

Excelent explanation ma'am.

[@veerababumortha3211]

Mam You said (2:21) that in next video you will explain about each step in detail...

[@TIMESOFWORLD]

Thank you. Semester starts 22 Jan. CNS is last exam Feb 19 Anna University😅

[@darshanhk6700]

monday is my exam wish mee all the best

[@manjuvimal8114]

Superb mam

[@ganeshjaggineni4097]

NICE SUPER EXCELLENT MOTIVATED

[@amanjotbehniwal3122]

Thanks dear😘😘 for providing simple explanation

[@harishks308]

Thank you so much mam..very easy and helpfull🤩

[@praveenvlogs8649]

I Just want to say thank you madam 💯

[@Akbarvlogss]

Good 👍

[@sethumadhavdoredla3823]

Nice explanation

[@shivamshukla2562]

mam a magical explaination

[@shashidharroyal]

2:38 madam was laughing aah😛🤪

Mam aapka accent laga hi aap south se hai mujhe bahut achha lagta hai ye sunne me 😄

[@MrCrazykid912]

the best video

[@narayanaraodukka2164]

Lots of love ❤ from CSE

[@harishpatel092]

understood very clearly ....thankyou so much

[@HiddenKnowledge-mw1bn]

so what?

[@sasikanth8378]

simplicity got a name "shraavya"

[@sasirekhamsvl9504]

well explained

[@glinspire1103]

Great explanation Thank you

[@kanagarajs976]

Lovely madam

[@kumarpratik99]

I think you must be be the around all to explain this in an easiest and efficient way....🎉❤🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

[@Nita_1204]

Best

[@manidigitaldestinations]

Thank you soo much madam 🖤🙏

[@Liam-i9c4s]

Amezing ❤

[@yenzyhebron5278]

Thank you for the amazing explanation!

[@dulaaorb2828]

your voice is so cool.

[@jho79]

I have exm at 2
I'm here watching it..
I have prepared everything from this channel last day 😅
Thank you mam ❤️

[@nuraktar7815]

nice video didi

[@mrmoltate7415]

Thank you mam

[@Friend01foru]

Thanks mam...

[@nquanta1548]

👍👏🔥

[@syamrajugollamandala139]

Hi tqs for the video

[@RaghulPrasad-r1e]

🔥🔥

[@danielpauljcs]

Uploaded more videos yar👍 CNS JNTUH syllabus

[@prakruthitambi9676]

❤❤ thank😢 you so much mam

[@Crusethewheel]

Thanks you so much for the video 👍

[@bharghavak]

wow, thanks alot.

[@ankanaghosh3691]

Can you please explain the 4 steps of DES and AES algorithm easily.
Please mam.

[@harikasweety9035]

Mam can you please explain s box substitution and p box permutation in des please
Our exam is on 9th

[@nikhithamadduri6364]

Mam , cryptography exam at Jan 20 mam, just 2 days left.

[@danielpauljcs]

Thanku for uploading , 😀😇

[@vicky-xb1lj]

Thank u very much

[@spyy7804]

what does initial permutation and final permutation mean ?

[@techtwentyfour]

thank you madam from drk college'

[@bhanu5137]

thank you madam

[@harshitjain4796]

Please give us video about the strength of des algorithm

[@anithajhansi6589]

Thanks you so much madam

[@NJhansisri]

Mam what if the attackers get to the main(56 bit) key ,how this algorithm ensures security to the plain text

[@naniyamuna6245]

Please Upload the Triple des algorithm also...

[@jkavitha1527]

Mam,in exams what they will ask mam,just explain r if they give the example to do .please Make a video on example with clear explanation mam.

[@trivenipadidala5636]

Tq mam

[@rakeshk9910]

👌👌

[@LaxmiSingh-tt2mj]

I completed my Cryptography tomorrow I hv final year exams

[@LYRICS_FOR_YOU_06]

Good 👍 mam but sometimes your told fastly otherwise all ok thank you 😊 mam students way of your lecture essaly understanding mam

[@chandubabyofficial3909]

Others can decrypt that in 1 round but not in all rounds u said that right mam
But every round is same right then that other person y cant decrypt that all rounds that person also skilled person right 😅

[@iamasr46]

Mam do we also need to explain s box substitution and p box permutation? Or just what u explained is enough? Mam and ur videos are very easy to understand. Thank u for last moment explanation. Helps alot!!

[@saisk7698]

yes

[@vasamsettiravi]

Mam could you please explain what happens in Rounds?

[@harshas203]

Could u please teach multiple des in cryptography subject

[@saurabhyadav8645]

maam my name is kushal pratap singh 20BCS1629 from Chandigarh University
you have a very melodious voice just like a nightingale i can listen you all night...but i have the isc exam tomorrow so i have to go bye bye maam

[@knowledge_istam]

) Number Theory all Algorithems (WE CANT EXPECT WHICH
ALGORITHM WILL BE GIVEN IN EXAM

[@yuva_chaitanya_02]

Yes

[@harinibalasrinivasan5124]

Mam, put clases on UDP and TCP protocols

[@pasupathirajakumar5384]

what about des algorithm with implementation concepts?

[@chanduu3993]

😊

[@bhaskarmadabattula9828]

What is your qualification.?

[@subbusparkz1240]

Plz do videos on
Mlp
Iot
Web technology
Spm

[@vengasriram8403]

can u take an example and do it please....

[@gunakatakam614]

Can you provide notes please

[@imnk_0193]

key size is 56 bits nor 48 bit

[@5d4pranith41]

Mam if the question is asked in the exam whether this is enough for fullarks or we have to explain what is happening in the rounds also ( in depth) .....?

[@TroubleFreevideos]

It’s enough what ever you understood write everything

[@5d4pranith41]

@@TroubleFreevideos thanks for explaining the subject mam ,if you wish you can do the remaining subjects like data mining and software project management and electronics sensor ,do it mam ....you will nail the explanation mam what ever you do ...👏👏👏👏👏

[@sharusha2002]

hi mam , my exam starting on 1st dec 2022

[@localgaming5547]

I have my exam tomorrow

[@MAHIHUNTER]

key size is 56 bits na mam

[@karangadani5424]

My book says key size should be 56 bits .. and according to u it is 48 bits .. which one is correct mam ?

[@Janvarviboltehai]

Mine also says the same..
Kindly clear ma'am

[@saisk7698]

The cipher key size is 56 bits. The round key size is 48 bits.

[@subbusparkz1240]

My exams in dec 26/23
🎉❤

[@907adithya5]

Maam will keep the pics of your notes

[@MAHIHUNTER]

why should we remove 8 parity bits

[@leelakrishnamohan519]

but key size is 56bits for DES

[@moininamdar3704]

maam in my book the size of the key is given 56-bit now im confused which is right

[@pasupuletiraja5479]

key length is 56 bits but U said 48 bits?

[@Pavanboby]

Hello madam I have exam information security and cryptography so please send me RSA algorithm notes.

[@Srinivas-ti7iq]

maam can you provide the notes pdf for this subject please i have low internal marks in this subject exam is coming maam could you please provide me notes for this subject for me maam please 🙏

[@PRAMODKUDAMA]

18 th one should explin clearly

[@PolisettiVeenavasanthi]

Mam phishing attacks and sql injection attacks explain mam i request to this vedio

[@sanghipooja7413]

Mam add S- boxes and P- boxes of DES

[@aayan-infosec]

key size is 56 bits or 48 bits?

[@bhagavanreddyvoruganti9501]

48 bit

[@sandyyt5213]

48 bit..

[@naveennayak989]

mam how do you get pc 1 table?

[@SachinKumar-z4l4t]

I have my exam on 15th Jan 2025