One Time Pad (Vernam Cipher) Encryption Explained with Solved Example in Hindi

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5 жыл бұрын

Myself Shridhar Mankar a Engineer l KZfaqr l Educational Blogger l Educator l Podcaster.
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Пікірлер: 137

@akarshkumar2171 2 жыл бұрын

For decryption: (Cipher text number - key number)= Plaintext number. Then convert back to letters. Eg: 8(i of cipher text)-1(b of key)=7(h of plain text)

@Annukulhad Жыл бұрын

and 23-8 = 15 and 15 is not l it is p

@rohit1770 Жыл бұрын

Actual method is : (Ciphertext no. - Key no. ) Mod 26 = plaintext no.

@rohit1770 Жыл бұрын

@@Annukulhad see ☝️

@usmanhardwareexpert498 Жыл бұрын

Cipher text i means i=8 Key text b means b=1 Ciper value - key value 8 - 1 =7 7= H So first letter is H Decryption

@endlessloopsoftwares4724 Жыл бұрын

Correct is :- (Cipher Text Number - Key Number + 26 ) mod 26

@rushalikamble8280 5 жыл бұрын

woooooooooooooooow what a explanation....jus loved it. You have explained it in such a nyc manner.keep it up good going.

@sunandanbhakat1967 5 жыл бұрын

Great Videos. You saved My Semester. thanks a lot! it would be great if you could make videos on DES and IDEA algorithms

@juvenate 3 жыл бұрын

Zabardast!!!! Such an awesome explanation. God Bless!!

@subhasmitasahu1172 8 ай бұрын

Your videos helps a lot of Student. Really Appreciate your The METHOD of teaching . Thanks for Teaching Us Sir 🎉

@royalmp558 4 жыл бұрын

Superb yarrr best sirrr for networking sub

@deependrapratapsingh1399 2 жыл бұрын

good work bro this 5 minutes really save my time

@shashanksaxena6189 4 жыл бұрын

Very well explained sir... thanks

@kishor-jena 2 жыл бұрын

you teach very well. i was looking for Vigenère cipher.

@thilinamadhushanbandarawic4616 3 жыл бұрын

great explanation. Thank you

@geetshaala2405 3 ай бұрын

Thank you so much sir for making this concept so much easy to understand

@steveplayz6491 4 жыл бұрын

Very understanding video sir...thanks

@saikatmaity894 2 жыл бұрын

really you are the great sir.. thank you so much for this

@manajkabasi4284 4 жыл бұрын

Sir your teaching is amazing

@Vivek_Pswn 4 жыл бұрын

Thnkuu very much sir... U r the best

@sahilvaniya8212 4 жыл бұрын

510 like isn't enough for this video guys , need to share more this video.... Awesome explaination sir

@nazaninrezai7107 3 жыл бұрын

Amazing, Thank you so much

@chiragshetty2245 2 жыл бұрын

Best Explanation Brother😍😍

@bjkhan9280 4 жыл бұрын

very helpful video for exam thank you soo much sir

@ajaykaushik1106 3 жыл бұрын

Super sir very nice bahut achcha explain karte ho

@payelghosh1548 Жыл бұрын

Very helpful classes sir

@rabiablouch1668 4 жыл бұрын

zaberdast boht shukareya

@pratikzagade7808 2 жыл бұрын

Bahut badhiya sir

@patelsiddhe38 2 жыл бұрын

Thank you sir love from gujarat ❤️

@Mishalali523 4 жыл бұрын

bhaiii chaaa gaye ho ... abi 10 mints me mera quiz tha and I was so worried about that topic ... you explained it well ... love from Pakistan god bless you

@sujalutekar9417 3 ай бұрын

chal nikal fir

@sumandeep2314 4 жыл бұрын

Bhut hi achi vedio thi 😊😊

@nafeesashivalli9483 Жыл бұрын

Excellent explain tion

@Himanshu-yb9kz 3 жыл бұрын

Thank you soo much man for this quality content and your way of teaching is soo good. 😍😍

@alisher-dz4ms 3 жыл бұрын

excellent teaching method sir g .................from pakistan

@sagarsahu4100 4 жыл бұрын

Awesome sir😃

@vishalchaurasia1338 2 жыл бұрын

After Addition we have To check if our Added Value is Greater Than 25 Not 26 , and subtract 26. Because our index start with 0..

@somebody3014 9 ай бұрын

nicely explained

@sauravsingh8655 4 жыл бұрын

U r great sir

@TOMGAMING-hy9hi 4 жыл бұрын

thank you so much sir ..........

@koustubhthakare1761 Жыл бұрын

Thank you sir :))

@vvburn7034 2 жыл бұрын

Thanks sir

@Easyp4ogramming Жыл бұрын

Thank h sir that's nice..sir

@Ramesh-Bhatt2057 7 ай бұрын

excellent sir,iam a BSC.CSIT student ,iam from nepal🇳🇵🇳🇵

@sreelakshmimenon8 5 жыл бұрын

very good explaination...decryption reverse hoga na?

@fakirmanas5914 Жыл бұрын

India me ase hi sir ki kami hai jo padahe wo ek hi bar me samaj ajaye

@muhammadahsan7414 3 жыл бұрын

excuse me sir, how will receiver be able to know the key that we have applied in order to decrypt the message as the key varies from message to message!!!

@Dhruv-kp5oq Жыл бұрын

jordar sir

@ShariqAyazTech 3 жыл бұрын

how reader can read orignal message? how reader or receiver know the key and how it can be reverse to convert into readable format?

@indukatheriya6778 4 жыл бұрын

Awesome

@bud_yhunter3940 5 жыл бұрын

And thnx for uploading

@akashkanojiya1788 2 жыл бұрын

Gajab

@Nikhilsharma-he4os Жыл бұрын

sir ye qncryption technique companies me use bhi hoti hai ya nahi....

@sahilprasantachoudhury911 3 жыл бұрын

For Decryption technique refer to Abhishek Sharma's video from 6:23

@shitalunde24 5 жыл бұрын

Plz upload the videos on embedded & real time os

@muhammadahsan7414 3 жыл бұрын

How will the receiver know that key? However, it varies from message to message.

@NitishRaj 4 жыл бұрын

Few mistakes 1. E and e is not same. 2. This is mostly used with string of bits. Although you have taken english word example. The should be further expanded using their extended ascii( represent in terms of bits) 3. use modulas keyword and not subtract 4. The key must be truly random.

@shivampawargi4750 5 жыл бұрын

HCI ke videos please dalenge kya. Book bhi nahi hai, students ko kafi dikkat ho rahi hai. Thanks in advance

@nikhilkarale7129 2 жыл бұрын

Sir can you please explain cryt arithmetic problem

@kalima7608 5 жыл бұрын

Sir... I want elliptic curve cryptography video plz...

@soubhagyajigautam522 2 жыл бұрын

what is Padding in cryptography, Sir?

@bud_yhunter3940 5 жыл бұрын

6:00 greater than 26? Or 25? And then subtract from 26? Or 25?

@satyammishra3540 5 жыл бұрын

if greater than 25 subrtract 26

@komal2619 5 жыл бұрын

You just have to do perform mod 26 operation on all add values

@sagarsahu4100 4 жыл бұрын

If Greater then you have to subtract 26

@sagarsahu4100 4 жыл бұрын

If greater then 25 then you have to subtract 26

@rajatvardam2787 2 жыл бұрын

if addition comes 25, it means Z. if addition comes 26, then subtract with 26 and you will get zero which means A.

@user-gn4ey6yk3k Жыл бұрын

then what about Vigènere tableau is uses same technique/method

@mayurgudi381 4 жыл бұрын

Decryption ?

@AamirKhan-zy5yt 3 жыл бұрын

that was best: kzfaq.info/get/bejne/rqiCoLZp0LatmoU.html&ab_channel=AbhishekSharma

@nirudarji25 4 жыл бұрын

Gudddd

@muhammadahsan7414 3 жыл бұрын

Excuse me, Sir, How can we decrypt Ciphertext in the One Time Pad technique?

@fakirmanas5914 Жыл бұрын

I think it is not possible bro

@AdduKeShorts Жыл бұрын

By subtracting the respective key numbers from cipher text

@user-vz7fn7rh3c 7 ай бұрын

@@AdduKeShorts and it the subtraction text is less than 0 then add 26 to it

@kartikpeddinti487 4 жыл бұрын

saviour

@sanandapodder5027 4 жыл бұрын

how to decrypt with this algorithm at the reciever side?

@juvenate 3 жыл бұрын

Check out this video on how to decrypt it from the other side. kzfaq.info/get/bejne/iJt8pLKixqi9d2w.html

@ULoveU2410 2 жыл бұрын

👍

@vipinyadav-to1wc 4 жыл бұрын

The condition should be if addition > 25 or addition >= 26

@adarshraj3250 4 жыл бұрын

Apply "Mod 26" on all the terms of ADD.

@Priyanka-kh5xq 4 жыл бұрын

Sir key Alphabet can be same?

@user-ex8ik7oq1m 5 жыл бұрын

Bro plz change this cipher text into plain-text

@sahilshelangia 4 жыл бұрын

TOTP also ???

@DeV-zm2kd 2 жыл бұрын

but, how to decript ciphertext to plain text

@muhammadahsan7414 3 жыл бұрын

sir if the addition == 26 then??

@vijaynariyal9818 3 жыл бұрын

So how we get plain text back here...???

@gangadharswain9734 6 ай бұрын

greater than or equal to

@mayurbhiogade813 4 жыл бұрын

Decrept kaise karenge ise

@pranjalsingh7928 6 ай бұрын

TOTAL ALPHABET 26 HAI LEKIN HUM 'A' KO ZERO SE ASSIGN KIYE HAI, SO HUME 25 SUBTRACT KARNA CHAHIYE YA 26?????

@unshikapatale2958 2 жыл бұрын

if addition is 26 then what to do

@kkkkkt0359 9 ай бұрын

Subtract me 26 number aaya to? Kya karna he?

@shreyaspande2929 2 жыл бұрын

substract ki jagah... mod 26 sab jagah laga sakte

@aditmehta2516 4 жыл бұрын

Yeh polyalphabetic cipher bhi yeh hi hota hai sir?

@aditmehta2516 4 жыл бұрын

Vernam cipher hi

@nurmohammadrayhan6088 3 жыл бұрын

I have one Question If you have taking A-Z are Respectively 0-25 then Why You Subtract using 26. In this Point You would be using 25 In My opinion Please I am bitty confused this point

@rajatvardam2787 2 жыл бұрын

we have given 0-25 for A-Z because of programming simplicity. But if you count alphabets from A-Z starting with 1, the letter Z will come at 26th place. That is why we subtract with 26 instead of 25. you can still count... If you start from A to Z with 0, you will have Z at 25th place. I know its confusing but we are not looking at the last place i.e 25 but we want to know how many alphabets there are and that is 26 from A-Z so take 26 for subtraction. Consider it as a rule of thumb if you want to.

@patelhemil1708 3 жыл бұрын

Cipher text to plaint text kese kare

@anniejan243 4 жыл бұрын

But how to decrypt???

@atharv.mhjn.48 5 ай бұрын

Why the number is subtracted by 26 rather than 25? The numbering is between 0-25. Please sir clear the doute

@nandanagare2189 Жыл бұрын

Barabar 😄

@trendingnow1878 4 жыл бұрын

Agar add mai 26 hua toh?

@Benaam-original 2 жыл бұрын

Time to decrypt number station's data.

@passionate7532 3 жыл бұрын

But sir wt about decryption

@stranger-rk1up 3 ай бұрын

sir..................plz hamare proff banjao😮‍💨

@raunakkalra806 3 жыл бұрын

Sir what if number itself is 26? We have to take 26 as A ?

@rajatvardam2787 2 жыл бұрын

yes. if your addition is 26, then subtract it with 26 and you will get answer as zero. which will be equal to A.

@user-vz7fn7rh3c 7 ай бұрын

if the number is 26 the also you have to subtract by 26 then you will get 0 and at 0 position is represented by A

@jayvardhanjagarwal8973 4 жыл бұрын

Decryption kasa hoga

@nayeemkhan4175 2 жыл бұрын

You said greater than 26 . I think it would be 25. Thank you

@nishamessey1157 3 жыл бұрын

It's easy to make but hard to solve brother.

@shubham-qd1lw 2 жыл бұрын

I m sure u r GUJARATI...😁😁

@nikhilb3880 4 жыл бұрын

5 minutes

@vc9068 2 жыл бұрын

Total 25 hai na?

@piyushrachna1882 4 жыл бұрын

Better hai ki bol do greater than 26 wale number ko mod 26 Kar na hai

@manishyadav9169 2 жыл бұрын

Use mod 26

@navidfarhan3775 3 жыл бұрын

Anyone listening De number stations?

@manikantaananthoja 4 жыл бұрын

You have not explained vigenere cipher Bhai...

@DominiK037 4 жыл бұрын

What if number in addition comes 26??😳🙀🤔

@user-um4ov9pt8b Жыл бұрын

This is a vigenere cipher encryption not one time pad .

@nemo987654321 3 жыл бұрын

Its MOD function