HMAC & Message Authentication Codes (MACs): Ensuring Data Integrity Beyond Hashing

This is one of the many videos in the mini-series of HTTPS https://www.youtube.com/playlist?list=PLql0J2JIDXdOREGUibCXlsevKDK4o8EzN Read it as article from: https://medium.com/@jaypmedia/hmac-message-authentication-codes-why-hashing-alone-is-not-enough-for-data-integrity-96f636aa0c11 https://dev.to/jaypmedia/hmac-message-authentication-codes-why-hashing-alone-is-not-enough-for-data-integrity-36ad Any developer should understand the importance of TLS, and understanding Message Authentication Codes is a critical prerequisite. Understand in this video why hashing alone won't do it for integrity, and learn why HMAC is used in TLS 0:00 Introduction 0:40 Bit Flipping Attack 1:14 Hashing 1:55 The problem with Hashing 2:19 What is HMAC 3:25 MAC algorithms 3:51 HMAC in TLS 4:07 HMAC is flexible 4:17 HMAC is standardized 4:32 Security of HMAC 5:25 Why HMAC modifies key internally 5:55 THE END