Cryptography - Playfair Cipher Explanation with Example

Playfair Cipher is a di-graph used to encrypt text messages. Here the plain text message is divided into groups of 2 alphabets and a key matrix is used to obtain the cipher text. --------------------------------------------------------------------------------- #PlayfairCipher #Cryptography #NetworkSecurity #Ciphers #SymmetricCiphers #Encryption #Decryption #GATE #VTU #Engineering #ComputerScience #Electronics #Digraph ------------------------------------------------------------------------------------------------ Extended Euclidean Algorithm for Modular Inverse : https://youtu.be/p7aZwZjZVbM s DES - Key Generation: https://youtu.be/mS2VC7vbbNc s DES - Encryption : https://youtu.be/ewHnHWCsFNMPublic Differences between s-DES and DES: https://youtu.be/WGqZTYwG_uU Primitive Root : https://youtu.be/tngcCcZrezA Diffie Hellman Key Exchange : https://youtu.be/dloRO4tfE1I Euler's Totient Function [Euler's Phi Function] : https://youtu.be/h-UVsqZvWng Fermat's Theorem - Explanation with example: https://youtu.be/cq2vIqyfJAg Route Cipher: https://youtu.be/a801gnJTbAA Four Square Cipher: https://youtu.be/54YwDWVasXo caesar Cipher: https://youtu.be/r6igurbeuVg Meet in the middle attack : https://youtu.be/QTTjJaY5lo8 Blowfish Algorithm : https://youtu.be/qso0bla-cOc Elliptic Curve Cryptography - 1 : https://youtu.be/_QR-kTypf4E Brute Force Attack : https://youtu.be/W9r80z1cfTk Avalanche Effect : https://youtu.be/b3zEi4YcEHY Double DES and Triple DES : https://youtu.be/SjuZQG89dCA Steganography & Cryptography : https://youtu.be/MaNk2kMhAQA Block Cipher Modes of Operation : https://youtu.be/A0CVvdRYzuY Message Authentication using Hash Function: https://youtu.be/cDf6b5c9Paw Message Authentication Codes MACs : https://youtu.be/I5WTXIN-29g Network Security - Attacks : https://youtu.be/8Swn1yj4ccs Authentication using Message Encryption : https://youtu.be/UQbWZvSw4IU RSA Algorithm : https://youtu.be/6Su9NyLGRNI Advanced Encryption Standard : https://youtu.be/zenE1Axp5UU Hill Cipher : https://youtu.be/Q-pp3IFk4uQ GCD of polynomials : https://youtu.be/b1L6AgBzWWY Categories of Cryptographic Systems : https://youtu.be/GXcYaPQ1DqQ Data Encryption Standard DES : https://youtu.be/ajXIv95u4Ng Public Key Cryptosystems : Advantages: https://youtu.be/TZeIFFEb0bY Public Key Distribution - Part 1 : https://youtu.be/xjdCINj6mTg Public Key Distribution - Part 2 : https://youtu.be/L8GRZ4t38jI Vigenere Cipher: https://youtu.be/lKn2838okKw Affine Cipher : https://youtu.be/M08MzID9NRc Chinese Remainder Theorem : https://youtu.be/wYwvlqxr1Qs Congruences: https://youtu.be/jSTD6ZL8ryo Transposition Cipher : https://youtu.be/kHy9bdUSVig Euclidean Algorithm for GCD : https://youtu.be/XQPVyg7gSEE ===================================================================== # To watch lecture videos on Cryptography: https://www.youtube.com/playlist?list=PLzyg4JduvsMoBwwNipMaLBt3E1tGUSkFF # To watch lecture videos on Digital Electronics: https://www.youtube.com/playlist?list=PLzyg4JduvsMqBK7b3UgjeXMHDvlZJoEbN # To watch lecture videos on 12th Maths: https://www.youtube.com/playlist?list=PLzyg4JduvsMrt86uef1l_5rTVkPUVjRzO # To watch lecture videos on 10th Maths: https://www.youtube.com/playlist?list=PLzyg4JduvsMoke_u9ekH3sSLxJ4LVmbAh # To watch lecture videos on Vedic Maths: https://www.youtube.com/playlist?list=PLzyg4JduvsMrT8E4e8ESgLio-x4Gh_Blu # To watch lecture videos on Information Theory/Coding Theory: https://www.youtube.com/playlist?list=PLzyg4JduvsMr6B0nu5_n61DFvbo0LuEhI # To watch lecture videos on Electronics: https://www.youtube.com/playlist?list=PLzyg4JduvsMrPC_NbIHryZ9gCEz6tz9-r # To Subscribe: https://www.youtube.com/channel/UCcwe0u-5wjn8RPGkkDeVzZw?sub_confirmation=1 # To follow my Facebook page : https://www.facebook.com/Lectures-by-Shreedarshan-K-106595060837030/ # Follow Naadopaasana channel - Classical Music, Spiritual discourse channel https://www.youtube.com/channel/UCNkS1AXwAqIZXhNqrB3Uskw?sub_confirmation=1 # Follow my Blog on Hinduism and Spiritual Significance: https://naadopaasana.co.in/ --------------------------------------------------------------------------------------- Engineering mathematics, Cryptography, Number Theory, Maths, Maths for Cryptography and network security, Network security,Engineering lectures, Lectures by Shreedarshan K,symmetric ciphers, Public key cryptosystems,Encryption, Decryption,Public Key Distribution,Public Key Authority, Public Key Certificate, Fermat's Theorem, Diffie Hellman Key Exchange, Hill Cipher ,VTU solved Examples,RSA, Encryption Decryption Ciphers Symmetric Ciphers Cryptography Network Security Polynomials Primitive root DES Data Encryption Standard Confusion Diffusion Hill Cipher Playfair Cipher Caesar Cipher Hill Cipher Steganography Triple DES Meet in the middle attack Blowfish Algorithm Eulers Theorem Chinese Remainder Theorem IDEA GCD Number Theory Extended Euclidean Algorithm for Modular Inverse