That was just an example to show that shift cipher is very vulnerable to attacks. I mean if you can crack the code using brute force methods that thing has to be easy and open so basically shift cipher is not secure
because we dont know the key and main aim is to find key so we will do it by brute force when the plain text will be readable we will know that it is the key
@@gopals8 the shifts represented in the example is may be one of the correct key of 25. right.so we can just subract the shift value from cipher text to find the readable text.but here they follow a different approach.This is the actual doubt they asked
I think while we where applying the brute force, we need to deduce the key form the cipher text whereas it is incremented while the example is shown. Are there any corrections to it or I didnt get the thing that is being done there Please help me out here 😶🌫😶🌫
Have a Doubt ,🤔🤔In the Brute Force attack.. CIPHER TEXT: SQDYMZK , U had explained that from Cipher to Plain Text, formula is P = D(C -- K) mod 26 but u have shifted 1 step forward ...?
C = E (P, K), MOD 26 = (P+4)MOD 26 KEY = 4
Q1: Plain text: CRYPTOGRAPHY -> Cipher Text: GVCTXSKVETLC
Q2: NESO = NESO -> Since Key = 0, plaintext remains same as Ciphertext.
Plaintext:- Crypto graphy
Caesar cipher:- GVCTXS KVETLC
Plaintext:- neso
Caesar cipher:- NESO
correct
bro its the shift cipher
Very Good Explanation sir. As usual, best video about Caesar Cipher on UA-cam. Thank You NESO Academy ! 😍
Waiting for the next video of this series sir...your teaching approach is so amazing ✨
1. Plaintext:- Cryptography
Caesar cipher:- GVCTXSKVETLC
2. Plaintext:- neso
Caesar cipher:- NESO
Homework:
Q1: plaintext: cryptography
key: 4
ciphertext: GVCTXSKVETLC
Q2: plaintext: Neso
key: 0
ciphertext: NESO
why u are using encryption algorithm while decrypting the ciphertext into plaintext via brute force approach??
yeah same question from my side
Sm doubt
That was just an example to show that shift cipher is very vulnerable to attacks. I mean if you can crack the code using brute force methods that thing has to be easy and open so basically shift cipher is not secure
because we dont know the key and main aim is to find key so we will do it by brute force when the plain text will be readable we will know that it is the key
@@gopals8 the shifts represented in the example is may be one of the correct key of 25. right.so we can just subract the shift value from cipher text to find the readable text.but here they follow a different approach.This is the actual doubt they asked
Q2) Encrypted the plaintext (Cryptography) shift key =4?
Ans) C = P + 4 mod 26
C= 2+4 mod 26
C = 6 mod 26
C =GVCTXSKVETLC
Great presentation 🎉
I love you neso ❤❤❤ thank you so much 😊
Plaintext: Cryptography
Caesar cipher: GVCTXSKVETLC
Plaintext: neso
Caesar cipher: NESO
(1) cryptography =>GVCTXSKVETLC (2) neso it will be same as the plain text hence, neso => NESO
1 -->: Plain text: CRYPTOGRAPHY -> Cipher Text: GVCTXSKVETLC
2 -->: NESO = NESO -> Key = 0, plaintext remains same as Ciphertext.
I watch all videos sir
All the videos are so helpful
Sir. Now I got clear idea sir
Post more lectures sir
Thank you sir
Answer for cryptography with k=4 is GVCTXSKVETLC
And Neso with k=0 is NESO
C = E(P,K) MOD 26
C= (P+K) MOD 26
Plaintext: cryptography
caesar cipher: c=2, k=4=6(G)
GVCTXSKVETLC
Cipher for NESO
K=0
Is: NESO
I think while we where applying the brute force, we need to deduce the key form the cipher text whereas it is incremented while the example is shown.
Are there any corrections to it or I didnt get the thing that is being done there
Please help me out here 😶🌫😶🌫
you are right
thank you sir🙏🙏🙏🙏🙏
good job man , thank you very much .
Tg🎉
thank so much!
Can you show us the decryption method
keep it up😇😇😍😍😍
Please, does the key value change at any point
What is symbol in the program???
Sir please make videos on DBMS
1. GVCTXSKVETLC
2. NESO
1:13
1st. GVCTXSKVETLC
2nd. Neso
Q1: GVCTXSKVETLC
Q2: NESO
Legends focusing on shift = 5
XVIDREP
Why you take key value 4 .. is it necessary?
No it depends on the user to select the shift key
@@ritidipsarkar618 jai balayya
@@sbc498 jai vijaykanth sir
1) GVCTXSKVETLC
2)NESO
Rsa
Can you translate Arabic
Have a Doubt ,🤔🤔In the Brute Force attack.. CIPHER TEXT: SQDYMZK , U had explained that from Cipher to Plain Text, formula is P = D(C -- K) mod 26 but u have shifted 1 step forward ...?
Plaintext:- "cryptography"
Ciphertext:- GVCTXSKVETLC
"GVCTXSKVETLC"
"NESO"
cryptography:GVCTXSKVETLC
Neso:NESO
Plaintext:CRYPTOGRAPHY
ciphertext:GVCTXSKVETLC
cipher text to cryptography -> GVCTXSKVETLC
i. GVCTXSKVETLC
ii. NESO