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

Поделиться
HTML-код
  • Опубликовано: 7 янв 2025

Комментарии • 144

  • @Mishalali523
    @Mishalali523 4 года назад +8

    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

  • @akarshkumar2171
    @akarshkumar2171 3 года назад +41

    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
      @Annukulhad 2 года назад +3

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

    • @rohit1770
      @rohit1770 2 года назад +4

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

    • @rohit1770
      @rohit1770 2 года назад +1

      @@Annukulhad see ☝️

    • @usmanhardwareexpert498
      @usmanhardwareexpert498 2 года назад

      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
      @endlessloopsoftwares4724 Год назад +4

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

  • @rushalikamble8280
    @rushalikamble8280 5 лет назад +6

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

  • @Kimnamjoon-ug4ti
    @Kimnamjoon-ug4ti 4 месяца назад +2

    This is one of the best explanation ❤

  • @sunandanbhakat1967
    @sunandanbhakat1967 5 лет назад +11

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

  • @sahilvaniya8212
    @sahilvaniya8212 5 лет назад +3

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

  • @vishalchaurasia1338
    @vishalchaurasia1338 3 года назад +6

    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..

  • @Ramesh-Bhatt2057
    @Ramesh-Bhatt2057 Год назад

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

  • @deependrapratapsingh1399
    @deependrapratapsingh1399 2 года назад

    good work bro this 5 minutes really save my time

  • @subhasmitasahu1172
    @subhasmitasahu1172 Год назад

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

  • @ajaykaushik1106
    @ajaykaushik1106 4 года назад +1

    Super sir very nice bahut achcha explain karte ho

  • @patelsiddhe38
    @patelsiddhe38 3 года назад

    Thank you sir love from gujarat ❤️

  • @geetshaala2405
    @geetshaala2405 9 месяцев назад

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

  • @royalmp558
    @royalmp558 5 лет назад +1

    Superb yarrr best sirrr for networking sub

  • @fakirmanas5914
    @fakirmanas5914 2 года назад

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

  • @alisher-dz4ms
    @alisher-dz4ms 4 года назад

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

  • @chiragshetty2245
    @chiragshetty2245 3 года назад

    Best Explanation Brother😍😍

  • @manajkabasi4284
    @manajkabasi4284 5 лет назад +1

    Sir your teaching is amazing

  • @sahilprasantachoudhury911
    @sahilprasantachoudhury911 4 года назад +2

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

  • @juvenate
    @juvenate 4 года назад

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

  • @Himanshu-yb9kz
    @Himanshu-yb9kz 4 года назад +6

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

  • @payelghosh1548
    @payelghosh1548 2 года назад +1

    Very helpful classes sir

  • @kishor-jena
    @kishor-jena 3 года назад

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

  • @bud_yhunter3940
    @bud_yhunter3940 5 лет назад +11

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

    • @satyammishra3540
      @satyammishra3540 5 лет назад +4

      if greater than 25 subrtract 26

    • @komal2619
      @komal2619 5 лет назад +12

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

    • @sagarsahu4100
      @sagarsahu4100 4 года назад +1

      If Greater then you have to subtract 26

    • @sagarsahu4100
      @sagarsahu4100 4 года назад +2

      If greater then 25 then you have to subtract 26

    • @rajatvardam2787
      @rajatvardam2787 3 года назад

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

  • @saikatmaity894
    @saikatmaity894 3 года назад

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

  • @Vivek_Pswn
    @Vivek_Pswn 5 лет назад +1

    Thnkuu very much sir... U r the best

  • @sumandeep2314
    @sumandeep2314 4 года назад

    Bhut hi achi vedio thi 😊😊

  • @vvburn7034
    @vvburn7034 3 года назад +1

    Thanks sir

  • @pratikzagade7808
    @pratikzagade7808 2 года назад

    Bahut badhiya sir

  • @nafeesashivalli9483
    @nafeesashivalli9483 Год назад

    Excellent explain tion

  • @shashanksaxena6189
    @shashanksaxena6189 5 лет назад

    Very well explained sir... thanks

  • @bjkhan9280
    @bjkhan9280 5 лет назад

    very helpful video for exam thank you soo much sir

  • @sagarsahu4100
    @sagarsahu4100 4 года назад

    Awesome sir😃

  • @NitishRaj
    @NitishRaj 4 года назад +2

    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.

  • @rabiablouch1668
    @rabiablouch1668 5 лет назад

    zaberdast boht shukareya

  • @vipinyadav3112d
    @vipinyadav3112d 5 лет назад +3

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

    • @adarshraj3250
      @adarshraj3250 5 лет назад +2

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

  • @somebody3014
    @somebody3014 Год назад

    nicely explained

  • @thilinamadhushanbandarawic4616
    @thilinamadhushanbandarawic4616 4 года назад

    great explanation. Thank you

  • @sreelakshmimenon8
    @sreelakshmimenon8 5 лет назад +1

    very good explaination...decryption reverse hoga na?

  • @nazaninrezai7107
    @nazaninrezai7107 3 года назад

    Amazing, Thank you so much

  • @sauravsingh8655
    @sauravsingh8655 5 лет назад

    U r great sir

  • @Easyp4ogramming
    @Easyp4ogramming 2 года назад

    Thank h sir that's nice..sir

  • @TOMGAMING-hy9hi
    @TOMGAMING-hy9hi 4 года назад

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

  • @ShariqAyazTech
    @ShariqAyazTech 4 года назад +1

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

  • @koustubhthakare1761
    @koustubhthakare1761 2 года назад

    Thank you sir :))

  • @shitalunde24
    @shitalunde24 5 лет назад +1

    Plz upload the videos on embedded & real time os

  • @mayurgudi381
    @mayurgudi381 5 лет назад +8

    Decryption ?

    • @AamirKhan-zy5yt
      @AamirKhan-zy5yt 4 года назад

      that was best: ruclips.net/video/xBRmS8kPIjQ/видео.html&ab_channel=AbhishekSharma

  • @Dhruv-kp5oq
    @Dhruv-kp5oq 2 года назад

    jordar sir

  • @muhammadahsan7414
    @muhammadahsan7414 3 года назад +5

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

    • @fakirmanas5914
      @fakirmanas5914 2 года назад

      I think it is not possible bro

    • @AdduKeShorts
      @AdduKeShorts 2 года назад

      By subtracting the respective key numbers from cipher text

    • @SaifPathan-s9r
      @SaifPathan-s9r Год назад

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

  • @kartikpeddinti487
    @kartikpeddinti487 5 лет назад +1

    saviour

  • @shubham-qd1lw
    @shubham-qd1lw 2 года назад +2

    I m sure u r GUJARATI...😁😁

  • @stranger-rk1up
    @stranger-rk1up 9 месяцев назад

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

  • @sanandapodder5027
    @sanandapodder5027 4 года назад +3

    how to decrypt with this algorithm at the reciever side?

    • @juvenate
      @juvenate 4 года назад +2

      Check out this video on how to decrypt it from the other side. ruclips.net/video/R5LqOqaBYG8/видео.html

  • @ਏਕਮ-ਚ7ਞ
    @ਏਕਮ-ਚ7ਞ 5 лет назад +2

    Bro plz change this cipher text into plain-text

  • @Nikhilsharma-he4os
    @Nikhilsharma-he4os Год назад

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

  • @nikhilkarale7129
    @nikhilkarale7129 2 года назад

    Sir can you please explain cryt arithmetic problem

  • @Benaam-original
    @Benaam-original 2 года назад

    Time to decrypt number station's data.

  • @nayeemkhan_nk
    @nayeemkhan_nk 3 года назад

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

  • @bud_yhunter3940
    @bud_yhunter3940 5 лет назад

    And thnx for uploading

  • @akashkanojiya1788
    @akashkanojiya1788 3 года назад

    Gajab

  • @HaiderAli-cz7bf
    @HaiderAli-cz7bf Месяц назад

    WHAT IS THE DIFFERENCE BETWEEN VIGENERE AND oNE TIME PAD CIPHER?

  • @gangadharswain9734
    @gangadharswain9734 Год назад

    greater than or equal to

  • @kalima7608
    @kalima7608 5 лет назад

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

  • @shreyaspande2929
    @shreyaspande2929 2 года назад

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

  • @indukatheriya6778
    @indukatheriya6778 5 лет назад

    Awesome

  • @JohnSmith-w2g2g
    @JohnSmith-w2g2g Год назад

    then what about Vigènere tableau is uses same technique/method

  • @nandanagare2189
    @nandanagare2189 Год назад

    Barabar 😄

  • @rajibsarkar3148
    @rajibsarkar3148 Месяц назад

    5:48, what is he saying is just mod that addition result with 26

  • @atharv.mhjn.48
    @atharv.mhjn.48 11 месяцев назад

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

  • @shivampawargi4750
    @shivampawargi4750 5 лет назад

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

  • @parthmodi2028
    @parthmodi2028 3 месяца назад

    Best

  • @nishamessey1157
    @nishamessey1157 3 года назад

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

  • @Yesitisright
    @Yesitisright 2 года назад

    If the added sum is "26" .... 26 is not great than 26... But we don't have any alphabet equal to 26 ... I mean Z is equal to 25... "

    • @sumitthakor6253
      @sumitthakor6253 2 года назад

      26 is equal to 26 so do subtraction 26-26=0 . 0 is assign to A alphabet

  • @nurmohammadrayhan6088
    @nurmohammadrayhan6088 4 года назад

    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
      @rajatvardam2787 3 года назад

      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.

  • @muhammadahsan7414
    @muhammadahsan7414 4 года назад

    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!!!

  • @Priyanka-kh5xq
    @Priyanka-kh5xq 4 года назад

    Sir key Alphabet can be same?

  • @soubhagyajigautam522
    @soubhagyajigautam522 3 года назад

    what is Padding in cryptography, Sir?

  • @Lokesh_Karki
    @Lokesh_Karki 5 лет назад +1

    0:46 starts at

  • @muhammadahsan7414
    @muhammadahsan7414 3 года назад

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

  • @anniejan243
    @anniejan243 4 года назад +1

    But how to decrypt???

  • @nikhilb3880
    @nikhilb3880 5 лет назад +1

    5 minutes

  • @muhammadahsan7414
    @muhammadahsan7414 4 года назад

    sir if the addition == 26 then??

  • @patelhemil1708
    @patelhemil1708 4 года назад

    Cipher text to plaint text kese kare

  • @pranjalsingh7928
    @pranjalsingh7928 Год назад

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

  • @navidfarhan3775
    @navidfarhan3775 3 года назад

    Anyone listening De number stations?

  • @vijaynariyal9818
    @vijaynariyal9818 4 года назад

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

  • @sahilshelangia
    @sahilshelangia 5 лет назад

    TOTP also ???

  • @ULoveU2410
    @ULoveU2410 2 года назад

    👍

  • @DeV-zm2kd
    @DeV-zm2kd 3 года назад

    but, how to decript ciphertext to plain text

  • @unshikapatale2958
    @unshikapatale2958 3 года назад

    if addition is 26 then what to do

  • @nirudarji25
    @nirudarji25 5 лет назад

    Gudddd

  • @aditmehta2516
    @aditmehta2516 4 года назад

    Yeh polyalphabetic cipher bhi yeh hi hota hai sir?

  • @an24gaming88
    @an24gaming88 2 месяца назад

    bhai lekin text book k hisaab se to a mentod bilkul match nai hora kya karuuu 🙃🥲🥲🥲🙃

  • @raunakkalra806
    @raunakkalra806 4 года назад

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

    • @rajatvardam2787
      @rajatvardam2787 3 года назад

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

    • @SaifPathan-s9r
      @SaifPathan-s9r Год назад

      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

  • @piyushrachna1882
    @piyushrachna1882 5 лет назад

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

  • @DominiK037
    @DominiK037 4 года назад

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

  • @passionate7532
    @passionate7532 4 года назад

    But sir wt about decryption

  • @FatimaRao-u3g
    @FatimaRao-u3g Год назад

    This is a vigenere cipher encryption not one time pad .

  • @trendingnow1878
    @trendingnow1878 5 лет назад +1

    Agar add mai 26 hua toh?

  • @kkkkkt0359
    @kkkkkt0359 Год назад

    Subtract me 26 number aaya to? Kya karna he?