Sir you have helped me a lot sir during my exams time. Your explonation is very goood and clear. Keep maintian that sir. You are one of the best teacher in my study career. I was scared about this subject and i found you on youtube. Now i learned lot of subject. Thank you very much sir.
SIr, In play fair, in the case of diagonal pairs , you have done wrong, HE -> FW and not by WF because it needs to be replaced by the letter that lies in its own row and the column occupied by the other plaintext letter.
hi Karthik thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
hi thanks for watching my sessions. thanks for your interest and support towards our channel. share my sessions with your friends and let them do subscribe to our channel. keep following our channel.
hi Nagesh thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
When the letters fall in different rows and columns, each letter is replaced with the letter in its own row and the column occupied by the other letter in group. HE -> FW LX -> PU LO -> SN
hi vasnatha raj garu thats so nice and may i know where you are working and where you are from ? thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
Myself Professor in SIDDARTH GROUPS, PUTTUR, AP. Urs is a great job, presenting in a clear and lucid manner, surely every student will get a clear idea after watching ur classess. Thanks a lot for making my job so easy.
hi pandav thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
hi chandana thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
In ceaser cipher When decrypting the example: zoo in cipher text for z the answer is not getting.can u explain me sir.while decrypting it is getting 0.so explain me what is the alphabet for 0.
well Explanation of both techniques are perfect , now make a video on permutation-diffusion and Substitution-permutation network , explain transformation matrix , sensor matrix and measurement matrix
sir I liked your videos... and I wants videos on... topic of network security like.. secret key cryptography hash function and msg digests public key cryptography authentication and kerberos.
Hii sir ur teaching was just amazing. U told that in playfair text if we have repeated letters we have to add dummy letter,but u add only between l and l then what about o and o sirr?? Plzz give me kind explanation sir
sir tell me in caesar cipher my plain text is VAN after calculation then i am geeting 0 as a result but here there is no alphabet for zero. c=(k+p) mod26. key is 4, (for v) (22+4) mod 26, then 26 mod 26 sp getting as the answer as 0. ? pls clear sir.
Sir what if there is 5 different letters in the plain text? Toh pair kaise banega sir...using dummy letter??? Is there any restriction on choosing the dummy letter??
hi naresh thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
sir for play fair case .. can u please write me a cipher text for pt(ACHYUTH) and key (CHINTU) and also pt (ACHYUTH) and key (MANGO). and I guess all rules will be applied for this examples.
Hi abhishek The key value is not restricted to 4 but it can be any value. Just for example I have taken it as 4. Hope your doubt has been clarified. Thanks for your interest towards our channel and share my sessions with your friends and keep following our channel and don't forget to subscribe to our channel.
Sir l like your teaching But a dot is that in the field of network security were these is acctually work such as you give example of balloon in chieper text
hi Adarsh thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
hi binnu if the characters falls in same column then replace with beneath character. hope your doubt has been clarified. thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
Sir, but you should make a mention of the mistake made in the video itself wrt diagonal elements. Just because you dint mention the mistake, I did the same mistake in exam also. I thought you might have solved correctly but now I come to know that you haven't solved it correctly. Please do the change or at least mention the mistake in video itself because someone else referring the channel might also do the same mistake.
This channel is a hidden gem!
Sir you have helped me a lot sir during my exams time. Your explonation is very goood and clear. Keep maintian that sir. You are one of the best teacher in my study career. I was scared about this subject and i found you on youtube. Now i learned lot of subject. Thank you very much sir.
Thank you so much Sir. Your videos means very easy to understand concept. 🙏😀❤️
You are the man! I like your videos. GREAT WORK!
thank you very much. Hope your support will continue further.
Sir great video . Slow and detailed really helped me prepare notes also at the same time .
Wow great lecture....i understood very well...keep going sir
hi yogi
thanks for your interest towards our channel and share my sessions with
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SIr, In play fair, in the case of diagonal pairs , you have done wrong, HE -> FW and not by WF because it needs to be replaced by the letter that lies in its own row and the column occupied by the other plaintext letter.
hi
you are correct and i am sorry for my mistake it is FW and not WF
Thanks for your correction and observation.
what about LO->NS shouldn't it be SN?
yes HE --> FW
LX --> PU
LO --> SN
yeah
angel fly thankyou dost hum bhi confuge ho gaye the ..thanks
Videos are very useful to us please continue the videos and give the more subject
tnk you very much sir...Ur videos are very much helpful to us..u made the concept very simple and easily understandable..
hi Karthik
thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
Your teaching is the best..
hi
thanks for watching my sessions.
thanks for your interest and support towards our channel.
share my sessions with your friends and let them do subscribe to our channel.
keep following our channel.
Thank u sir your lectures are very easy to understand
NICE SUPER EXCELLENT MOTIVATED
Due to my GATE Preparation I didnt listen classes in my clg isimply watch ur videos n attempt the exam thank you sir
Hi krish
Thanks for your support and interest towards our channel and share our channel with your friends. Keep following our channel.
@@sundeepsaradhi I'm from RVR n JC
My All Friends Watching Ur Videos
Thank you sir
thank u sir..for such an awsm video...👍👍 keep it up
hitzz likes guys....man deserves thousands of likes for such lucid explanations......
In play-fair cipher ....if the diagonal element is i/j what we need to take sir ?
Great class
Videos are very helpful for remote areas people
hi Nagesh
thanks for your interest towards our channel and share my sessions with
your friends and subscribe to our channel.Keep following our channel.
Very well explained the topic..thank you sir
sir, what about the case when we get h& d in ur example , for h should we use i or j??? or any one of them???
When the letters fall in different rows and columns, each letter is replaced with the letter in its own row and the column occupied by the other letter in group.
HE -> FW
LX -> PU
LO -> SN
Correct
ya you are correct
thank you sir
your voice is amazing ....................
I understand it
thank you so much sir. .your easy explaination helped me alot
Sir if our plain text contain either of letter I/j then how the 5×5 matrix look like .
Super explanation sir🙏🙏🙏🙏
REALLY SUPERB, I INSISTED MY STUDENTS TO SUBSCRIBE UR CHANNEL.
hi vasnatha raj garu
thats so nice and may i know where you are working and where you are from ?
thanks for your interest towards our channel and share my sessions with
your friends and subscribe to our channel.Keep following our channel.
Myself Professor in SIDDARTH GROUPS, PUTTUR, AP. Urs is a great job, presenting in a clear and lucid manner, surely every student will get a clear idea after watching ur classess. Thanks a lot for making my job so easy.
hi vasantha raj garu
thats so nice to hear from you sir
thanks for your comment and support towards my session and our channel.
Absolutely my students also
thank you so much i really learn from your video
hi
thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
Excellent
very helpfull vidio.thanks
hi pandav
thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
great vdo very helpfull
thank you prakash
Awesome sir you have explain so well.....I like your lectures....it is really helpful.....
hi chandana
thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
You are awesome 🤩
tysm sir for video 😊
Thanks alot sir your the best
hi sir,your explanation is well and good.
In ceaser cipher When decrypting the example: zoo in cipher text for z the answer is not getting.can u explain me sir.while decrypting it is getting 0.so explain me what is the alphabet for 0.
Nice explanation sir. How does these work if plain text contains number?
well Explanation of both techniques are perfect , now make a video on permutation-diffusion and Substitution-permutation network , explain transformation matrix , sensor matrix and measurement matrix
Great video!
Thank you so much sir 😊 This videos are really helpful for me👏😊
sir why are we taking the key as 4 ONLY....like on what basis it is taken as 4
It is really good ND easy to understand sir. but there are two more technique, can u make vedio on hill cipher .......
hi sahithya
definitely i will try to upload them.
thanks for watching my session and supporting our channel.
What happens if the pair of P.T characters are both I and J? They are merged into the same table cell...
hi Javier
if you combine I and J then the cipher text may also be consider 1 among two possibilities.
Hope your doubt has been clarified.
sir I liked your videos...
and I wants videos on... topic of network security like..
secret key cryptography
hash function and msg digests
public key cryptography
authentication and kerberos.
hi prakash
thank you and definitely one by one i will upload every concept on information security
keep on watching my sessions.
Thanks Sir
DES ALGORITHM
ua-cam.com/video/SaZGjQBItBc/v-deo.html
1.7 lakh views but only 2k likes
Common yaaar Encourage him by just clicking the Like button
It doesn't cost you ....Right!!!!
What if the key has the letters I and J seperately as the keyword --AJITH in play fair cipher..?
What about the Dummy letter ? We can remove the dummy cipher text or not ?
sir nice.....................
hi
thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
If one of the Plain text element is V and Key is 4.then C(v)=(22+4)mod 26=0.then what will be the Cipher text of V?
hi kalyan
that depends on the numbering you have taken either 0 to 25 or 1 to 26.
Hii sir ur teaching was just amazing. U told that in playfair text if we have repeated letters we have to add dummy letter,but u add only between l and l then what about o and o sirr?? Plzz give me kind explanation sir
sir tell me in caesar cipher my plain text is VAN after calculation then i am geeting 0 as a result but here there is no alphabet for zero. c=(k+p) mod26. key is 4, (for v) (22+4) mod 26, then 26 mod 26 sp getting as the answer as 0. ? pls clear sir.
SIr if the key itself consist of i or j then which alphabets should we merged in 5*5 table?
hi sagnik
we can merge any two alphabets in one box but in general i and j will be merged in one box.
hope your doubt has been cleared.
Sir,, what will we do,if only single letter remain without leftmost repeated letter...,,
great lectures
Sir in play fair cipher if key having letter I then what latter should we merge because of 5*5 matrics contains 25 letter only
You are genus Sir
hi Usman
thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
Can you please explain these topics..
Polyalphabetic
Substation Methods -- Permutation Methods -- Cryptanalysis of these Methods
what if key vale has i/j how to place 26 letters in matrix @Sundeep Saradhi Kanthety
Sir ,
Isn't LO-SN ?
Could please clarify.
Sir what if there is 5 different letters in the plain text? Toh pair kaise banega sir...using dummy letter??? Is there any restriction on choosing the dummy letter??
ur video very good sir
hi hemavati
thanks for watching my sessions and your interest towards our channel.
Hlo sir...for message WTAAD using caesar cipher with key 15...it should be LIPPS....correct me if i am wrong..
what will be matrix for 6*6 (alphanumeric) in playfair cipher
sir plz told me how k=4.
Can we take any number between 1 to 26 or not
hi asim
there is no restriction with 4 we can have any number between 1 to 26
Hope your doubt has been clarified.
06:47 min,, how you write k=4????
It will be mentioned by the question itself , we do not assume that
Sir thank you but how to get orginal text after converting encryption in Caesar cipher
Sir it looks similar to affine cipher to me are they same or different??
Thank you sir❤💞
Keep rocking Dude..how should i decrypt of encryption of plain text in play fair example
Sir best teacher in India Sir u r
hi naresh
thanks for your interest towards our channel and share my sessions with
your friends and subscribe to our channel.Keep following our channel.
Thank you sir ....for the vdo
Hi Sir, how we will decide the value of K [ Key ]?
its just a rondom num, which will be given in question.
Sir the first substitution technique you are teaching is HILL SUBSTITUION. In cesar substituin we add +3 alphabet and write it as a cipher key.
Thank u so much sir ...😍
are videos in the playlist in order?
very helpful thanksss
Sir have one question...
30 mode 26 = 4 in zoo. Why did you minus here???
How you take k=4, plz tell me
hi
here k can be chosen any value as it is a key.
sir for play fair case .. can u please write me a cipher text for pt(ACHYUTH) and key (CHINTU) and also pt (ACHYUTH) and key (MANGO). and I guess all rules will be applied for this examples.
sir how the key can be 4 why not 5 is it so because l character is repeating two times
Hi abhishek
The key value is not restricted to 4 but it can be any value. Just for example I have taken it as 4. Hope your doubt has been clarified. Thanks for your interest towards our channel and share my sessions with your friends and keep following our channel and don't forget to subscribe to our channel.
Tqq for clarifying
Sir if plain text words didn't repeat so one letter is remaining how that one letter is sir
Reply sir
What is cipher text is "VEN"? Sir A=0 to Z=25.
Sir l like your teaching
But a dot is that in the field of network security were these is acctually work such as you give example of balloon in chieper text
hi Adarsh
thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
Thank you sir 😊
What should be letter for 26 mod 26?
Sir if the key is not given what we should can take
SIR I CAN CORRECT YOU KINDLY,,,,,ALWAYS COUNTING STARTS FROM ZERO NOT ONE,,,,FOR THAT REASON A TO Z WILL RANGE FROM 0-25
👏👏👏👏👏 tq sir
In the balloon "o" also repated na .. but why your not use .. another dummy letter
But sir gate syllabus is different rather than basic may know the difference between them
if characters falls in same column then what we have to do?
hi binnu
if the characters falls in same column then replace with beneath character. hope your doubt has been clarified.
thanks for your interest towards our channel and share my sessions with your friends and subscribe to our channel.Keep following our channel.
In other youtube videos i have learned that
The word balloon -ba lx ox nx
Not like that.
I believe you more but...
sir please explain 3rd substitition technique also as you have explained only 2
how can we get the decrypted one using play fair method
explain OSI model in cryptography?
Caeser cipher case what if pt in v what will be cipher text then
Super sir
hi Elango
thanks for watching my sessions and supporting our channel.keep on following my sessions.
Hi sir
Play pair cipher I/j this letter why is propose merchant
Pls explain particular letter is why merchant
Why can't be C. T in playfair for plain text be FWPUNS
How can we do if we encounter merged one ( i & j )
In caesar cipher A shoud be taken as zero and z taken as 25
Heavyyy
Sir, but you should make a mention of the mistake made in the video itself wrt diagonal elements. Just because you dint mention the mistake, I did the same mistake in exam also. I thought you might have solved correctly but now I come to know that you haven't solved it correctly. Please do the change or at least mention the mistake in video itself because someone else referring the channel might also do the same mistake.