How does the Google Authenticator Work? HOTP TOTP Difference | 2FA Authentication

Описание к видео How does the Google Authenticator Work? HOTP TOTP Difference | 2FA Authentication

How does Authy work? What's HOTP and TOTP? What's multi factor Authentication? and Two factor? 2FA. We look at Base32, QR codes, and the respective RFCs for both approaches.

Authy vs Google Authenticator.

Chapters:
00:00 Intro
00:20 What are we solving?
00:39 HOTP
02:35 Solving: Password length
04:44 Solving: Syncing counter
04:41 TOTP
08:29 TOTP Secret Encoding
09:20 Qr Code contents
10:30 Real World QR code
11:08 Reading the spec, an example of the flow
15:54 How do you validate?
17:33 Outro

Totp vs hotp. rfc4226. How Google authenticator works.

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