#28. RSA Algorithm - Asymmetric key cryptography |CNS|

Поділитися
Вставка
  • Опубліковано 7 гру 2024

КОМЕНТАРІ • 197

  • @sathish9042
    @sathish9042 Рік тому +25

    Your explanations are better than guides and notes .Thank you so much mam.

  • @varshar7483
    @varshar7483 2 роки тому +50

    Thanks a lottttttttt 🙏🙏 You have taught so much in exam point of view ,, I have learned everything from you and wrote the exam thanks a lottttttttt

  • @diwakar2501
    @diwakar2501 2 роки тому +28

    4:38 ed/mod pie(n)=1 this is how it should be right

    • @RahulLour
      @RahulLour 2 роки тому +4

      we know that 1 mod(n) = 1/1 mod(n) OR 1 mod(n)=(1 mod(n))^-1 == 1 , thus ed= 1 mod pi(n) OR ed = 1/1 mod pi(n) , as a result ed mod pi(n) = 1

    • @ananthan7355
      @ananthan7355 Рік тому +5

      bro just consider e^-1(fi(n)) as an entity and move it to the other side , that was a mistake from the video

  • @kunalsoni7681
    @kunalsoni7681 Рік тому +10

    your notes are very clear and easy to understand. And the way you teach is fabulous ☺️💯💫

  • @rishidiwute3604
    @rishidiwute3604 Рік тому +6

    kudos ! wrapped under some minutes ! also M is not number of digits Its is decimal representation of string message. (Cryptography and NS by w stalling)

  • @roshithborra4713
    @roshithborra4713 6 місяців тому +4

    very nice explanation and it's very easy to understand for only single time.......

  • @spkumar.17
    @spkumar.17 2 роки тому +9

    Its osm😁😁😁
    Thanks for helping 🙂🙂

  • @ayushiumbarkar3068
    @ayushiumbarkar3068 Рік тому +5

    Your way of explaining is too good
    Thanks a lot

  • @AjayYadav-dv2vs
    @AjayYadav-dv2vs 2 роки тому +7

    That is awesome series of Cryptography thank you

  • @eduatm5222
    @eduatm5222 Рік тому +2

    Madam, thanks a lot for ur kind clear explanation.....AthmaRam

  • @adityaky5427
    @adityaky5427 Рік тому +71

    How you taken Ed=1modΦ(n) as Ed modΦ(n)=1

    • @raomubashir3976
      @raomubashir3976 11 місяців тому +2

      how?

    • @VijayKumar-hn2hx
      @VijayKumar-hn2hx 11 місяців тому +11

      @@raomubashir3976 actually the formula is edmod(n)=1,she took wrong in video

    • @raomubashir3976
      @raomubashir3976 11 місяців тому +12

      @@VijayKumar-hn2hx right but now it's too late to talk about this , cuz i gave its paper yesterday 😅

    • @VijayKumar-hn2hx
      @VijayKumar-hn2hx 11 місяців тому +1

      @@raomubashir3976 🤣ok

    • @amigosters6381
      @amigosters6381 11 місяців тому +2

      Ed=1modn means edmodn=1
      That is ed divides by n then get remainder is one

  • @gauravsharma5584
    @gauravsharma5584 11 місяців тому

    Best video i watched so far for this topic. Thank you

  • @sherlyj282
    @sherlyj282 Рік тому +4

    Excellently teaching mam and like ur flow of speaking and understood very well mam thank you very much

  • @vajidkhan1131
    @vajidkhan1131 8 місяців тому +1

    Time complexity and space complexity of RSA algorithm, where this algorithm is used

  • @maazaslam7455
    @maazaslam7455 5 місяців тому +1

    The calculation for 'd' doesen't work if we have large values for n, and phi of n, As it just becomes a Brute Forcing by counting each mod upto idk a thousand before until we get the correct value of 'n' Thats basically what my instructor replied with

  • @Asgardian32-m2y
    @Asgardian32-m2y 7 місяців тому

    Thank you...well defined class lecture with simple communication

  • @surajr4757
    @surajr4757 Рік тому +5

    1:50, those two numbers must be prime numbers

  • @jashu2426
    @jashu2426 11 місяців тому

    Your explanation way is very good to understand 🎉

  • @LEONIETCHAMABE
    @LEONIETCHAMABE 4 дні тому

    very explicit thanks

  • @akhil__1998
    @akhil__1998 2 роки тому +11

    ed=mod pie(n)
    edmod pie(n)=1
    ?

  • @tanvipandya3353
    @tanvipandya3353 Рік тому +6

    Ma'am, lectures are so nice. Please guide how can I get these notes?

  • @physicsbullet5129
    @physicsbullet5129 15 днів тому +1

    Any tricks there ..to find d value faster

  • @yashpatil3006
    @yashpatil3006 2 роки тому +5

    Thankyou so much ma'am. All my doubts are getting cleared a day before exam :)

  • @Krishna-z1g5r
    @Krishna-z1g5r 9 місяців тому

    Superb Explaination 🔥🔥🔥

  • @vikaskadimani2158
    @vikaskadimani2158 10 місяців тому

    hlo mam u have explained the things so easily and it was very helpfull to me mam and so for that thank you mam.

  • @placementpreparationformnc2408
    @placementpreparationformnc2408 2 роки тому +4

    Love you for your explanation ❤️😇😘

  • @ANILKUMAR-yw7zw
    @ANILKUMAR-yw7zw 2 роки тому

    Wow so easily u explained 👏👏👍

  • @devangmathur5809
    @devangmathur5809 2 роки тому +2

    We have to take 2 prime numbers in the starting.

  • @_AkeelAhmad_wani
    @_AkeelAhmad_wani Рік тому

    ohh maam what a cool way of explaining

  • @syamalas9199
    @syamalas9199 2 роки тому

    Thaks a lot sister u helped me a lot for exam .
    Tqsm ❤️u

  • @zeeshanhaider3953
    @zeeshanhaider3953 Рік тому +1

    Tanks a lot ma'am
    U clear all my doubts 🥰🥰

  • @mohammadamanalimyzada1462
    @mohammadamanalimyzada1462 2 роки тому +2

    p and q are large primes for better security

  • @KarthiKeyan-rf6bc
    @KarthiKeyan-rf6bc 8 місяців тому

    You are taking so clear

  • @sauceontoes3457
    @sauceontoes3457 28 днів тому

    3:42 gcd of 20 and 6 is 2 so you can't take 6

  • @aswinmanmathans6837
    @aswinmanmathans6837 7 місяців тому +3

    P and Q should be prime ..pin

  • @siddhu8558
    @siddhu8558 2 роки тому +2

    4:24 how did mod⌀(n) come to LHS?

  • @albatrosshanging
    @albatrosshanging 25 днів тому +1

    how did you calculate the huge cipher text value on a calculator and how did you do mod and all that stuff?

    • @AmmaraIqbal-y9e
      @AmmaraIqbal-y9e 21 день тому +2

      For mod if u are do example 7mod3
      First do 7/3=2.33333..
      Then do 2.333-2=0.33333..
      Then multiply it with the rhs i.e 3
      You will get 1
      Do the same for your problem

    • @albatrosshanging
      @albatrosshanging 21 день тому +1

      @AmmaraIqbal-y9e thanks I actually figured this out on my and my exam's already done.
      Thanks anyway ❤

  • @anupriya5861
    @anupriya5861 4 місяці тому

    How do we calculate 31 power 7 mod 33? Plz help me

  • @ram-dg2or
    @ram-dg2or Рік тому +1

    Thanks for your explanation
    Could you please explain how to implement it practically

  • @riddhishukla5465
    @riddhishukla5465 2 роки тому +1

    don't understand at the time 4:25 .. plz tell me in deep

  • @keshavgupta2647
    @keshavgupta2647 2 роки тому +5

    how do we assume m in this case?
    by hit and trial?
    won't it take a lot of time and calculations?

    • @yashkalia2311
      @yashkalia2311 Рік тому

      Any value works which satisfies the condition

  • @VISHALSINGH-ur6rl
    @VISHALSINGH-ur6rl 2 роки тому

    Thanks a lot
    your way of explaining is too good
    Thanks a lot

  • @HarshaSN
    @HarshaSN 11 місяців тому

    Thank you it's very clear

  • @NithiDeepa
    @NithiDeepa 7 днів тому

    good explanation

  • @nagurshariefshaik6606
    @nagurshariefshaik6606 Місяць тому

    I love your voice mam ❤❤

  • @kittuthegreat1819
    @kittuthegreat1819 8 місяців тому

    can you tell me what are the key distribution approaches for method authentication in cyber security ? i have exam.. is it the same you are explaining ? symmetric and asymmetric any other approches?

  • @tsreenutsreenu1543
    @tsreenutsreenu1543 Рік тому +1

    Your explanation is super mam🫂🫂🫂

  • @janardhanreddyboyalla2941
    @janardhanreddyboyalla2941 2 роки тому +2

    why edmod(fi(n))=1?

  • @novicecoder5753
    @novicecoder5753 2 роки тому +2

    Explanation is good but there is no theory about the concept in video please include it in future videos

  • @rapture_05_14
    @rapture_05_14 8 місяців тому

    Nice explanation

  • @VENOM-yt3ft
    @VENOM-yt3ft 2 роки тому +1

    Add Chinese remainder theorem in the cns playlists

  • @onestepawarenesshummanity6360
    @onestepawarenesshummanity6360 Рік тому +2

    How to calculate 31 power 7mod 33 c=4 ?please suggest me

  • @AbhinandBhavan
    @AbhinandBhavan 2 роки тому +5

    Should p and q be prime or co prime or not?

  • @lakshmanikkurthi567
    @lakshmanikkurthi567 Рік тому

    Simple and easy ❤

  • @travelingnomad8873
    @travelingnomad8873 Рік тому

    how to do MITM in cryptool ???.. please make video on it!!.?

  • @muhammedans6096
    @muhammedans6096 10 днів тому

    U first wrote d=e^-1modphy(n)
    But by sub e=-1
    Phy(n)=20
    We get d =140

  • @shubhampatel3494
    @shubhampatel3494 2 роки тому +2

    how did she get c=4

  • @rockstargameing7165
    @rockstargameing7165 27 днів тому

    ❤❤ thank you so much

  • @mohammedfouzan4798
    @mohammedfouzan4798 Рік тому +2

    Your explanation of algorithm is good!. But, the question every learner should ask is how is decryption key sent over the internet to the receiver so that he can decrypt and read the message ? All i say is just don't blindly understand the algorithm without knowing the use of it.

  • @youtuber9571
    @youtuber9571 Рік тому +2

    Can you please explain elliptic curve cryptography

  • @ashwinunnikrishnan6689
    @ashwinunnikrishnan6689 5 місяців тому

    great video

  • @burugukrishnamurthy4832
    @burugukrishnamurthy4832 Рік тому

    Hi madam. I have watched yours FLAT subject videos. I have passed that subject.

  • @sruthim2542
    @sruthim2542 2 роки тому +1

    What is gcd here?

  • @Bajrang9033
    @Bajrang9033 2 роки тому

    Tank you mam for your good explanation

  • @vikram0411
    @vikram0411 Рік тому

    thanks for helping us sis...it's very useful for us..

  • @prajwalbhasme5317
    @prajwalbhasme5317 Рік тому +1

    How to calculate GCD?

  • @nirmalabigimalla3
    @nirmalabigimalla3 10 місяців тому

    mam as you said in previous videos block cipher is symetric but here you said RSA is block cipher so it must be symetric but why RSA is asymetric

  • @sowjanyachapala3971
    @sowjanyachapala3971 2 роки тому

    Can u please share the vedio of fermats & Euler's theorem in CNS by tomorrow

  • @rithikasunkara9074
    @rithikasunkara9074 Рік тому

    Is that prime large number or only large number youu have not given clarity mam can u tell

  • @akshayhegde6886
    @akshayhegde6886 Рік тому

    thank u mam,that's so helpfull

  • @jeonmichael1482
    @jeonmichael1482 2 місяці тому

    How e is 7 even 3 also have gcd will come as one

  • @Raistar_172
    @Raistar_172 Рік тому

    Can we choose m=2 ,In encryption ?

  • @Vk_status1
    @Vk_status1 2 роки тому

    Nice mam but I have some doubts

  • @harivardhanv278
    @harivardhanv278 2 роки тому +1

    whether it is prime or not explain??

  • @RSM_15
    @RSM_15 3 роки тому +1

    Plz complete the playlist soon

  • @yoyo_corona_gaming4658
    @yoyo_corona_gaming4658 10 місяців тому

    can u tell how to calculate mod in calc

  • @yyndsai
    @yyndsai 2 роки тому

    you told that you wll say they are prime or not at the end of the video, but you didn't said??

  • @abhijitnayak.8733
    @abhijitnayak.8733 2 роки тому +1

    Very much useful. 🥲

  • @shashi_speaks
    @shashi_speaks Рік тому

    u need to explain how to do calculator, like us we don't know how to do in calculator

  • @akashmaurya5342
    @akashmaurya5342 2 роки тому

    agar yeh que 29 ka aata h or isme encryption or decryption galat ho baaki D tak shi to kitne number milege?

  • @premsagarvangara759
    @premsagarvangara759 Рік тому

    Thank you ma'am 👍

  • @ashokkumarkaruthaiamperuma6761
    @ashokkumarkaruthaiamperuma6761 2 роки тому

    whether the value of encryption and decryption can be same

  • @mbannu1569
    @mbannu1569 10 місяців тому

    how to find gcd vole (20,e)

  • @prathamgupta6973
    @prathamgupta6973 Рік тому

    It is large prime numbers in the beginning of the video.

  • @aishwaryamahesh4308
    @aishwaryamahesh4308 Рік тому

    can you make a video how to slove large power number in scienctific calculator like 234^2345

    • @core_cse
      @core_cse Рік тому +1

      i think it is not possible to solve using scientific calculator

  • @ankank1886
    @ankank1886 Рік тому

    How I calculate modular in calculator

  • @Basava_6434
    @Basava_6434 Рік тому

    I think all are using same example only
    What is trick for taking e value medam

  • @tadelasanthoshi9037
    @tadelasanthoshi9037 2 роки тому

    If we take any values of the M value the answer will be same ....... If not same the answer will be wrong....

  • @rohityt9714
    @rohityt9714 11 місяців тому

    actually d is congurent not equal

  • @ashutoshpathak1387
    @ashutoshpathak1387 2 роки тому +2

    GCD of 2 numbers = 1 means they are co-prime. GCD OF 20 AND 6 is not 1. Greatest common divider of 20 and 6 is 2. .... you said we can use 6, coz 6 is not a factor of 20. You are confusing factor with GCD. LOL 3:40 "YOU CANNOT TAKE 4 correct, coz gcd of 4 and 20 is 4, you cannot take 5 correct coz gcd of 5 and 20 is 5, you can take 6 LMAO, NO YOU CAN'T TAKE 6, coz although GCD OF 6 AND 20 IS NOT 6 (like 4 and 5 prev), it still is 2, AND 2 IS NOT EQUAL TO 1.

  • @jr_jeet
    @jr_jeet Рік тому

    How you let the value 31

  • @manjunageshwarineelapu4738
    @manjunageshwarineelapu4738 2 роки тому

    Mam what about 'RC5' algorithm?

  • @NaveenReddy-zk7of
    @NaveenReddy-zk7of Рік тому

    Who will say what is GCd means ?

  • @thomasshelby4584
    @thomasshelby4584 Рік тому

    what to write sha 512 for me tomorrow exam'

  • @vaidehisoma754
    @vaidehisoma754 5 місяців тому

    How is c=4??

  • @bibekdevkota2281
    @bibekdevkota2281 11 місяців тому

    thank you so much sister

  • @romeogurung1556
    @romeogurung1556 2 роки тому

    encrypt the word "retaliate" and then decrypt it madam

  • @MayankHM
    @MayankHM Рік тому

    how to do mod in the calculator

  • @march19ize
    @march19ize Рік тому

    31 power 7 how did u do mod in calculator

    • @sadiq234
      @sadiq234 Рік тому

      Example- 34mod 33
      Do
      1) 34 divided by 33 . Remainder =1 is the answer.
      34mod33=1

  • @Noobgamer-jd1sb
    @Noobgamer-jd1sb Рік тому

    Please note. Private key in RSA is only d not d, n