Hill Cipher Encryption and Decryption with Numerical | Everything about Hill Cipher

Hello friends! Welcome to my channel.
My name is Abhishek Sharma.#abhics789 #AbhishekDit
In this video, i have explained the concept of HILL CIPHER ENCRYPTION AND DECRYPTION with numerical example in Cryptography and Network Security.
If you learned something new do like and share this video with your friends and don't forget to subscribe to my channel :)
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[@amishmishra761]

Hats off to you sir for such a great explanation!

[@hareemkhan7900]

MindBlowing explaination ...... saw your video without giving pause

[@chinni438]

Really osm teaching very very nice tnq for making this vedio .

[@vakayamini3782]

That's very clear and awesome explanation 🔥

[@ritikachourasia5635]

best ever explained theorems .. really handsoff to u❣

[@romarai3050]

Bht sahi bhaiya...kafi time se problem ho rha tha isme ab ekdm mst samjh aa gya..thank you

[@kuhar98]

Best ever lecture on youtube for hill cipher

[@akankshasingh7866]

thank you sir for providing a mind-blowing video

[@rashmisinha7228]

Very nice explanation.. Great efforts

[@thecatinamorato838]

very much helpful..thnx for ur teaching...

[@santhoshs7028]

Beautiful explanation. Thank You. Make more videos.....

[@farishamdani5045]

Can you please share these hand written notes? That would be really helpful.

[@prachidoshi9082]

Best explanation on Information Security

[@xyz-pc3tl]

Thanks a lot for your all Hardwork 🙏🙏🙏

[@anjalirastogi5203]

Bhai tum bahut sahi video banaye ho ! Keep it up

[@PiyushMaurya007]

Keep up with the great work dude!!

[@akulupadhyay]

Can you provide a link to these hand notes ? It will be very appreciated ❤️

[@lokeshkumar4827]

man's ignoring all the comments regarding notes :')

[@dollydewangan8964]

Very very nice explanation sir thank you so much sir 🙏

[@bosigaribayapureddy1671]

I am fully understanded. Tqu

[@savitaverma3469]

Too good. Very well explanation u gave

[@satishreddy9766]

What is plain text contains odd number length and how to convert it into 2×2 matrix

[@musharafkhan7935]

Arayyyyy Yarrr Mashallah kiya amazing Explanation hay ❤❤❤❤❤❤

[@AbdulRafay-vi6hz]

good job brother....I was not able to understand the decryption before but I can handle any hill decryption like a champ...Thank you

[@AbdulRafay-vi6hz]

@Malik Oakley nice

[@AbdulRafay-vi6hz]

@Daniel Briggs flexZone is some kind of Online lectures or what is it??. Can you explain ?

[@fahimmuhammadkhan3874]

You are gem, Well delievered Sir,,, Respect

[@osamakhalid6315]

Very nice explanation brother.

[@sowbaranikag6514]

thanks a lot! u solved my doubt!😊🙏🙏🙏thankyou!

[@tesem5741]

Thank you yrrr .lectures online horahe h kuch b nhi samjta usme

[@bhaveshthakor5389]

so informative ❤️❤️

[@anushkatyagi2062]

Sir pls provide pdf of these notes.. It will be very helpful

[@harshithap2620]

Very easiest method thought it was very helpful thankyou

[@thusharag.a.5184]

really good one

[@samarthgupta4069]

Thank You so much...

[@ashishtiwari1052]

Thankyou 😊

[@pawankumarpandit1822]

thank you bhaiya so much it is amazing video

[@muskan1154]

Crisp clear

[@ArbazKhan-md6zj]

Very interesting

[@lightdrops227]

Zbrdast explaination

[@yogendragavli2646]

awsome amazing

[@lionesslady6795]

thank you

[@pratikshadubey4307]

If the value of d inverse is negative then what should we do???

[@rimsha4519]

thanks for help

[@anshujoshi3622]

What to do if 'd' is an even number? Then d*(d-inverse)mod 26 will never be 1. Please answer.

[@SivaKumar-rv1nn]

Thanks sir

[@muhammadsaad4036]

very good sir...

[@hope_less]

1 ghante mai paper hai aur meko yeh channel abhi mila 🥲

[@keyurpanchal9929]

Nice videos sir.... Can you please make a video on how to find multiplicative inverse in big numbers and it's methodology.?

[@AbhishekSharmaDit]

I have uploaded a video on how to find multiplicative inverse
U can check the playlist

[@mansisengar6625]

nice sir

[@tanugupta9333]

Sir Agar 5 character bali spelling lege tab square matrix kese bnega

[@M.RaoUbaid1410]

Nice keep it up❤

[@aroraji7173]

I have a doubt in a question related to Hill cipher will you plz solve it?
How should i send you that question?

[@siddhantsingh6578]

Hm d ka inverse na nikale aur determinant se divide kr de to?

[@sadiashamas786]

Bhai adjoint ma 26 q add kia ha koi or bi kr skty ha kia?

[@hipstergaming5651]

Sir jo great ho

[@Jerry02vdm]

thanks

[@souhardyahalder3903]

what happens if the length of plain text is odd in hill cipher and 2x2 matrix given as key

[@viralvideos9227]

i have a small doubt what if the length of plain text is odd??

[@manmohan_pundir]

Add bogus character

[@guestofallah7661]

Thanks but what if I have a plaintext (8 letters ) and key (3 letters)?

[@AshishKumarDwivedi]

how you can multiply 2*1 matrix with 2*2 matrix

[@Muskan-by3ze]

Sir total kitni techiques h?

[@Strawberry-oz1qu]

I have a doubt, what to do if the plain text has odd number of letters. Eg;- ant, or plane because one column of the last matrix would be empty.

[@alkayadav9064]

then aap pair bana sakte ho x use kar k ......
eg; ant
-> an tx..... is tarah

[@Strawberry-oz1qu]

@@alkayadav9064 oh ok. Thanks a lot ma'am.

[@mariyamamreen439]

Determint me 26 se bra b ae to kia usse ase hi le k jna ha next k mod Lena ha phel??

[@mdazam2315]

Sir if you don't mind pls provide your lecture notes pdf...

[@dharma_reddy]

How to find inverse if we get the determinant of the key matrix an even number. I think we cant do the same process if we get determinant an even number where we cannot find inverse using this method. Can you do the same problem using key matrix[1 7;9 3].

[@shawnlawrencedante1209]

I agree with you

[@dishapanjwani9367]

yeah, can u please provide those handwritten notes?

[@co_be_b69_tusharpatil61]

Bhai tussi gr8 ho

[@muhammdyazdan1192]

Nice

[@muneebwaqas400]

@Abhishek Sharma How can we decide that whether if we want a 3X3 key or 2X2 key?

[@creed_forever]

Depends on the length of key text. If key length is 4 then 2x2 if key length is 9 then 3x3. Add filler letters if the length of key text is not a perfect square.

[@chiragmd8565]

love you bhai

[@prashantSharma-ht9po]

Liked 👍

[@m.azeemaslam2872]

how to convert 5 letter into hill cipher for example hello

[@rubabshah8116]

Kindly guide me how can we find the value 57 114 mod 26 =5 10

[@griefandghewar]

26*2+5=57 so that leaves remainder 5

[@vinyastv8955]

@@griefandghewar thank u

[@ferozahmad6934]

in decrypt part sir why you use mod 26 twice ...

[@anb4351]

matrix inverse bila waja mushkil method se krwaya

[@marwakharal1148]

Agr value 26 sy 6oti aa jaye to phir kia krain...mod 26 kesay lain??

[@priyanshubharti5680]

Nice video sir......easy explanation.....btw which book are u referring???

[@AbhishekSharmaDit]

Cryptography and network security by William Stallings.
And
Cryptography and network security by Behrouz A Forouzan and Debdeep
Mukhopadhyay

[@prasadmathpati1784]

Sir... Determinant value is 131 .then what is it's inverse..... Please tell sir

[@shreshthatripathi8861]

If we have determinent value and adj value then what is the need to find multiplicative inverse of determinent..??

[@arunkc9147]

Because key must be in whole number not in fraction, if suppose |k|=5 and we directly do 1/|k| we get fraction value in final value of k inverse.
To make clear why we take whole number only, is because letters of alphabet are arranged from 0-25, if it's 0, then we say it's letter a, if it's 1 then its letter b, but if k is in fraction like 1/2, what should we replace? So for this we don't directly calculate 1/|k|,

[@rajudebnath6353]

👌👌👌👌👌

[@kavitabhosale2397]

what if the value is repeated in one column ? eg. TT ?
can we replace it by TX like playfair matrix ?
suppose place at ten
[P] [A] [E] [T] [E]
[L] [C] [A] [T] [N]
is this correct or we have replace one T by X?

[@nihalmohammed9619]

DID U HAPPENED TO FOUND OUT WHAT WE HAVE TO DO IN THIS CASE?

[@basicmaths8026]

Repitition is not allowed in playfair matrix.. its against the rule..if we have a alphabet which is 3 times repeated we will just consider it once

[@aadityakant7329]

Hello bhiya
Hill cipher ke liye kon sa book follow kiye hai , bataeye
Jaruri hai
Book name please 🙏

[@ShreeHarivansh-ip3jl]

Can u plz recomnd any app or site ....how to decode the whatsapp mailed chat ....its so cunfusion there....plz recomnd a site or an app.

[@NiteshKumar-vk72]

kese ho bhaiii...smbhl k rhna encrypt krdunga

[@manojjain264]

Is it necessary to take value of A=0?? Can we take a=1 and so on with other alphabets??

[@AbhishekSharmaDit]

As a standard we use a=0 b is 1 and so on
So that if we take modulus with 26 we can get the values as 0,1,2 ....
But of we use A=1 B=2 ....
Then Z Will be 26
And 26 mod 26 will be 0 and that will be an exception
But its not wrong you can then divide by 27 then
But its not given anywhere so u can google it out for details

[@savansharma4998]

Bhai ye mod 26 kase nikalq 57 and 114 ka

[@alighulam3408]

can i get it's code

[@aarivsingh0607]

in decryption for finding inv(d) we can use inv(d)=(1+x*26)/d, where x is a constant

[@gauravjoshi3687]

what if the key is not in nxn matrix. Lets say *Hey*?

[@shehzeenzahid282]

Sir agr detriment bot Bra ho tu Kiya kry

[@illonaroyce4625]

Sir 3×1/3 SE b answer 1 ayega to 9 SE multiple krna zaroori hy Kiya ????

[@tahaahmed9787]

If determinant value comes negative then what we will do like -3 then ?

[@pranv_garg]

then -3 mod 26

[@anb4351]

d iverse keo kiya direct divide nhi kr skte

[@hayatatia9767]

D D^-1 = 1 mod 26
If D = 12
What would b D-1

[@bazilshah8976]

Sir encryption tou app nysmjhayi bhot achy sy lakin dcription m bhaag rhy hain Aor multiplative inverse bhe sahi sy nai smjha payee

[@pratikkumar9323]

Bro if key is "CURD" than how to decrypt ciphet text.... Please tell me.... because determinant value comes in minus and many problems......🙏

[@RajMShah]

What is your p?

[@sawairahameed549]

Agar minus a jai then what we did

[@kabirajmeri8229]

sir your teaching method is great ,love from ahmedabad

[@secularguy________]

How key of attack has decided

[@gulshanyadav5918]

use extended euclidean algorithm to find d inverse.

[@salilchandan4196]

what if determinant is negative?

[@mariyamamreen439]

Determint negative a jae to next kia krein????