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Sir thank you for your crystal clear explanation ❤️🔥
Most welcome. Keep learning
Sir nega matum apdi all subjects cover painuriga clg la oru subject ta ya cover paina mudiya iruka naraya mam apdi sir
By practise than. All the best.
Sir important questions for cryptography and cyber security sir pls
ruclips.net/video/fW2-QTnwUAQ/видео.html
7:42 antha table epdi podanum sir purila
Basically we are trying to expand 4 length string to 6. So we see forward and backward. Plz watch again. Then you will understand.
❤️✨ Thank You ❤️✨
You are so welcome
SDES concept explain pannunga sir
I might have left few topics in each subject. Plz refer them from book.
if they ask des question can i write this answer for 12 mark sir
Yes
Sir S-DES and DES same or different? 🤔
Its simpler version of DES
@because2022 in previous year question paper sum asked in S-DES method how to solve it
@@v12v123 It will be almost same. You can refer this www.geeksforgeeks.org/simplified-data-encryption-standard-set-2/ to get an idea.
Ithu theory ah keppangala illa problem ah keppangala plz sollunga sir😢😢😢😢😢😢
Theory
Neenga kodutha orderla intha uestionnukku answer panlama sir?
Sir DES question theory a keppangala illa sum keppangala?
Epdi vena kekalam
@@because2022 summa ketta enna banrathu?
@@VrappanVeerapan Then just explain the algorithm using the sum
Screen clear ah ila sir epdi notes edukrathu
Plz adjust video settings in youtube. Then it will be clear.
@@selvarajs1240Enaku current thaa.Un velaiya paaru..
@@because2022okay sir
Indha notes mattum podhuma Sir????
Thanks sir
Most welcome.
Good ❤
Thanks ✌
👌👌
Thanks keep learning
Good evening sirProper notes illa sir des ku so above mentioned slides la irukkura points mattum write panna podhuma sir
Yes pothum
Sir neenga pana alavuku pana evlo mark ethir pakkalam
@@x_parthiz._.9681 min 8 to 10
Sir.. Unit 4 la MAC solithanga sir
Tuesday seminar iruku sir
It would be tough now Saran. Please try to prepare. If you have doubts, mail me. I will help you.
Sir for des Decryption Can we draw Feistel decryption diagram
Sir, in the book there are main content are there. For eg: singke round des, permutation table etc
All key points I have covered, if you want to cover anything more from textbook, you can.
14:31 Hi sir In Feistal description we use likeK5K4K3K2K1But now in des it would beK1K2K3K4K5 Is this correct sir?
I meant reverse order of encryption.
@@because2022ok sir
👍
Thanks keep learning..
12.4
Wont be possible to upload again. Plz read once and re-watch. You will then understand.
We converted 32 bits into 48 bits by adding 16 bits to perform xor operation with key,after performing the xor operation we reduce the 48 bit again to 32 by reducing 2 bit (Just a reverse of step 1) using substution technique but i am not sure
12.04 puriyala mam
Sir thank you for your crystal clear explanation ❤️🔥
Most welcome. Keep learning
Sir nega matum apdi all subjects cover painuriga clg la oru subject ta ya cover paina mudiya iruka naraya mam apdi sir
By practise than. All the best.
Sir important questions for cryptography and cyber security sir pls
ruclips.net/video/fW2-QTnwUAQ/видео.html
7:42 antha table epdi podanum sir purila
Basically we are trying to expand 4 length string to 6. So we see forward and backward. Plz watch again. Then you will understand.
❤️✨ Thank You ❤️✨
You are so welcome
SDES concept explain pannunga sir
I might have left few topics in each subject. Plz refer them from book.
if they ask des question can i write this answer for 12 mark sir
Yes
Sir S-DES and DES same or different? 🤔
Its simpler version of DES
@because2022 in previous year question paper sum asked in S-DES method how to solve it
@@v12v123 It will be almost same. You can refer this www.geeksforgeeks.org/simplified-data-encryption-standard-set-2/ to get an idea.
Ithu theory ah keppangala illa problem ah keppangala plz sollunga sir😢😢😢😢😢😢
Theory
Neenga kodutha orderla intha uestionnukku answer panlama sir?
Yes
Sir DES question theory a keppangala illa sum keppangala?
Epdi vena kekalam
@@because2022 summa ketta enna banrathu?
@@VrappanVeerapan Then just explain the algorithm using the sum
Screen clear ah ila sir epdi notes edukrathu
Plz adjust video settings in youtube. Then it will be clear.
@@selvarajs1240
Enaku current thaa.
Un velaiya paaru..
@@because2022okay sir
Indha notes mattum podhuma Sir????
Yes
Thanks sir
Most welcome.
Good ❤
Thanks ✌
👌👌
Thanks keep learning
Good evening sir
Proper notes illa sir des ku so above mentioned slides la irukkura points mattum write panna podhuma sir
Yes pothum
Sir neenga pana alavuku pana evlo mark ethir pakkalam
@@x_parthiz._.9681 min 8 to 10
Sir.. Unit 4 la MAC solithanga sir
Tuesday seminar iruku sir
It would be tough now Saran. Please try to prepare. If you have doubts, mail me. I will help you.
Sir for des Decryption Can we draw Feistel decryption diagram
Yes
Sir, in the book there are main content are there. For eg: singke round des, permutation table etc
All key points I have covered, if you want to cover anything more from textbook, you can.
14:31 Hi sir
In Feistal description we use like
K5
K4
K3
K2
K1
But now in des it would be
K1
K2
K3
K4
K5
Is this correct sir?
I meant reverse order of encryption.
@@because2022ok sir
👍
Thanks keep learning..
12.4
Wont be possible to upload again. Plz read once and re-watch. You will then understand.
We converted 32 bits into 48 bits by adding 16 bits to perform xor operation with key,
after performing the xor operation we reduce the 48 bit again to 32 by reducing 2 bit (Just a reverse of step 1) using substution technique
but i am not sure
12.04 puriyala mam
Wont be possible to upload again. Plz read once and re-watch. You will then understand.
👍
Thanks keep learning