Playfair Cipher (Part 1)

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Network Security: Playfair Cipher (Part 1)
Topics discussed:
1) Classical encryption techniques or Classical cryptosystems.
2) Basics of Playfair cipher and a general comparison of the cipher text with Caesar, Shift, and Monoalphabetic ciphers.
3) Important rules for encryption using Playfair ciphering technique.
4) Use of keyword and construction of 5x5 matrix using the keyword for the encryption process.
5) Creation of digrams and removal of repeating letters in digrams using filler letters.
6) Explanation of cryptanalysis on Monoalphabetic ciphers with example.
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Axol x Alex Skrindo - You [NCS Release]
#NetworkSecurityByNeso #Cryptography #NetworkSecurity #PlayfairCipher

Пікірлер: 48

@qaisarkhan9441 2 жыл бұрын

You are doing a great job and teaching far better than institutional teachers the graphics keeps us in touch with the lecture seems like a board interactive lecture thank u for this God Bless u keep up brother

@prachi1888 2 жыл бұрын

Very nice lecture👏👏... Only useful content no unuse talks. Appreciate's you😊😊

@jimratter5561 2 жыл бұрын

Thank you for this clear and detailed explanation of playfair cipher. I read about it in a book, "covert radio agents 1939-1945", but could not fully understand it.

@friendsinn1987 2 жыл бұрын

Many thanks for this. It clearly explains the concepts

@pythonsuzan9554 2 жыл бұрын

just wow man!!! love your style ❤

@OsamaAmer-hv3vc 2 ай бұрын

Thank you for helping me understand because it helped me a lot in studying Thank you again

@__joshplays. 3 ай бұрын

Very helpful and understandable thanks ❤️

@BobF510 9 ай бұрын

This content is out of this world. A related book I read was life-affirming. "Game Theory and the Pursuit of Algorithmic Fairness" by Jack Frostwell

@jagmohansingh3189 2 жыл бұрын

U r awesome neso

@user-xh1mf4vn3q 9 ай бұрын

I want to communicate with you that your explanation is the best

@danielamare2685 3 жыл бұрын

Subscribed!!!

@HolyThugQuotes Ай бұрын

Amazing lecture ❤❤🎉🎉🎉🎉

@MohdAsim-vh4ek 2 жыл бұрын

I think I/J signifies the Pigeonhole Principle.

@actionplay1018 10 ай бұрын

Good thinking. wonderful

@bhubanmondal05 7 ай бұрын

no it's not

@Luna-vk9xy 2 жыл бұрын

if I were a part of the keyword. then can we couple any unused letters together or it has to be j and some other letter?

@mhamadnazm7588 2 жыл бұрын

Thanks you to much

@sapnashah4807 2 жыл бұрын

please please sir can you explain how conventational algorithm works

@uff_rani 2 жыл бұрын

Thank you so much I want to learn c++ please suggest

@dhivyapriya9803 3 жыл бұрын

Nice

@emad3241 2 жыл бұрын

what if i and j are both used in the encryption key?

@TheMR-777 Жыл бұрын

It's a matter of Human Intellect, then.

@watchmore07936 2 ай бұрын

6:58

@pmarimuktu849 Жыл бұрын

if keyword has repeating char. the ? can we include repeating char in the table or not?

@e.a9018 2 жыл бұрын

What if I/J appear in the keyword?

@sreenivasuluKN-tn6dq 2 ай бұрын

Hello Sir, How to split into digrams if Plain text is balloon

@shantoshpersonal9282 7 ай бұрын

if our plaintext is max , then what is the digram? is it ma xx

@manojkoncha8434 Жыл бұрын

what if the last letter in plain text is x alone

@David-dy7xc Жыл бұрын

why haven'r you covered THE PIG PEN CYPHER i think it would be of value

@moseeswaranc5055 7 ай бұрын

If x is an extra character then what can we do Xe ro x ???

@STYLISHBOY 4 ай бұрын

@avejessi4175 2 жыл бұрын

1:00

@jyotsnavangepuram1890 Жыл бұрын

Why I/j only in one shell why not other alphabets

@jagadeswarreddyreddam5637 Жыл бұрын

What if last odd letter will be x

@nandangook234 2 жыл бұрын

Namaku sriutami alias nandang ook no sepiking Inggris sepiking Indonesia 🙏

@nipun7437 6 ай бұрын

Balloons ke liye filler btao

@ramyasrimrecw98 Жыл бұрын

Can u provide ppts

@bharathdynamo9351 11 ай бұрын

Why only i and j are combined, why not other??

@vivekmaru2557 11 ай бұрын

Did you found it why?

@prabakaran1685 10 ай бұрын

@@vivekmaru2557 are you find it ? 😂

@vivekmaru2557 10 ай бұрын

@@prabakaran1685 no I even game exam with half knowledge

@sachinsudaraka6397 3 жыл бұрын

❤️

@bry0 7 ай бұрын

A = yay

@prithvigupta8215 2 жыл бұрын

8:31

@mehwishkhurshied5409 2 жыл бұрын

Atni lambi q karty ho

@shawnmonteiro8757 Ай бұрын

Incase you guys are finding the playfair cipher for the above, here are your answers: attack: srrsde, mosque: ontsml, nesoacademy: mgpambbrlcwb, baloon: ibsumpna