COC4010_1.19_Crypto Maths3 _Galois Fields_Modular Polynomial Arithmetic

Lockdown Lectures
In case of doubts/corrections/clarifications please raise the query in the classroom app.
References:
1. William Stalling, "Cryptography and network security", 4th edition
2. B.A. Forouzan, "Cryptography and Network security"

[@marcusmedina9940]

Thanks! You saved me right before my Cryptography quiz, I could not for the life of me find good videos explaining this.

[@zafaryabhaider7995]

Glad I could help!

[@SHUBHAM23P]

best video for galois fields on whole youtube others dont really know what a galois field is

[@dasfabelwesen]

Diagrams make all the difference when trying to understand these topics! Great and fast!

[@zafaryabhaider7995]

I agree

[@mondu11able]

Very simple explanation 👍.useful for a beginner

[@zafaryabhaider7995]

Glad you liked it

[@duaamuhsen325]

رحم الله والديك ربي يوفقك very good 👍

[@zafaryabhaider7995]

Thanks. أمين

[@harirao12345]

Awesome video! So clearly explained with detailed examples. But please change your laser color from yellow to something else.

[@zafaryabhaider7995]

Thanks for the tip!

[@happyseal9546]

Beautiful and Interesting and Glod bless you.

[@zafaryabhaider7995]

Thank you! You too!

[@reubenkuhnert6870]

Exceedingly good video!

[@zafaryabhaider7995]

Thank you very much!

[@madhurimasarkar5909]

But how to get m(x) irreducible polynomial?

[@learnwithkhizerbutt]

AoA sir, Does binary and polynnomial methods for addition and multiplication in GF 2^3 different answers??

[@zafaryabhaider7995]

GF arithmetic is polynomial method. At the end everything is represented as binary and it has basic binary operations too. I hope this helps. I didn't get the question.

[@theedspage]

Thank you for the video

[@sradhanjalipattanaik6152]

Excellent sir..

[@zafaryabhaider7995]

Thanks

[@im.endangered]

tq sir . u are best

[@zafaryabhaider7995]

So nice of you. All the best

[@maanj2608]

How to calculate the 7x7 so the result is 3 in multiplication table of GF(2^3)

[@zafaryabhaider7995]

7 = x^2+x+1
7x7 = (x^2+x+1)^2
=x^4+x^3+x^2+x^3+x^2+x+x^2+x+1
=(x^4+x^2+1) mod (x^3+x+1)
=x+1
x+1 in binary 5 bit is 00011 which is equal to 3 of decimal.

[@shuvamsahoo1130]

Superb❤❤❤👍👍

[@zafaryabhaider7995]

Thank you! Cheers!

[@AS-nx9fu]

How did u get that irreducible polynomial

[@zafaryabhaider7995]

Please watch James Hamblin's video titled Irreduceable Polynomials.

[@omargaber3122]

Thank you very much

[@zafaryabhaider7995]

You are welcome

[@its-qi4vg]

sir how to generate polynomial arithmetic polynomial

[@AnmolJain1]

all others are fake