Welcome to our lecture series on Cryptography & System Security. This video covers Substitution ciphers The topics covered in the video are 👉 What is substitution cipher? 👉Monoalphabetic ciphers 👉 Polyalphabetic ciphers 👉 Categorization of monoalphabetic & polyalphabetic ciphers If you found this video helpful do like and share with your friends. Subscribe to Be The Best channel for more such videos 👉Link to Cryptography & System Security Playlist ⏳ Timestamps ========================== 0:00 Introduction 0:27 Substitution ciphers 01:45 Monoalphabetic ciphers 02:54 Polyalphabetic ciphers 03:57 Further categorization ========================== 👍Follow us on: Instagram: Facebook: Twitter: #CryptographyAndSystemSecurity#substitutionCiphers#ClassicalCryptosystems#MonoalphabeticCiphers#PolyalphabeticCiphers#BTB#BeTheBest#Crytography #CSS #MU #ComputerEngineering #2022