Cryptography & Network Security - Hill Cipher (Decryption)

Unlock the Secrets of Data Protection: Master Cryptography and Network Security with Neso Academy! Dive into ciphers, encryption techniques, and security protocols to defend against cyber threats and enhance your digital expertise.

4.0 (2)

27 learners

What you'll learn

Understand fundamental cryptography and network security principles
Identify and analyze various security attacks and mechanisms
Apply encryption techniques such as DES and AES for data protection
Utilize and implement public key cryptography and digital signatures

This course includes

14.5 hours of video
Certificate of completion
Access on mobile and TV

Summary

Keywords

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Full Transcript

Network Security: Hill Cipher (Decryption) Topics discussed: 1) Classical encryption techniques: Substitution and Transposition techniques. 2) Introduction to the basics of Hill cipher. 3) Mathematical concepts to be known in order to deal with Hill cipher encryption and decryption problems. 4) The Hill Algorithm - Encryption and Decryption process of Hill cipher with expressions. 5) Formula for finding the key inverse matrix and explanation of all the parameters involved. 6) Example – Decryption using Hill cipher for the plaintext “RRLMWBKASPDH” with a 3x3 Key Inverse matrix. 7) Finding the determinant of a 3x3 matrix using a short-cut approach. 8) Finding the adjoint of a 3x3 matrix using a short-cut approach. 9) Finding the multiplicative inverse of a number with modulus. 10) Verifying the key inverse matrix. 11) Information about square matrix and unit/identity matrix. 12) Various ways of doing Hill cipher encryption and decryption using Row Vector approach and Column vector approach. Follow Neso Academy on Instagram: @nesoacademy (https://bit.ly/2XP63OE) Contribute: http://bit.ly/3EpZgBD Memberships: https://bit.ly/2U7YSPI Discord: https://bit.ly/3HiGtJr WhatsApp: https://whatsapp.com/channel/0029Va9B1Bq4tRru0nqgtx3h Books: https://bit.ly/4cZYQil Website ► https://www.nesoacademy.org/ App ► https://play.google.com/store/apps/details?id=org.nesoacademy Facebook ► https://www.facebook.com/nesoacademy Twitter [X] ► https://x.com/nesoacademy Music: Axol x Alex Skrindo - You [NCS Release] #NetworkSecurityByNeso #Cryptography #NetworkSecurity #HillCipher