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www.mjt.me.uk | ||
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cryptsus.com
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| | | | | How to configure SSH with YubiKey Security Keys U2F OTP Authentication on Ubuntu 18.04 | |
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www.dannyguo.com
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rcoh.me
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| | | | | I always wondered how Google Authenticator style 2-factor codes worked. The process of going from QR code to rotating 6-digit pin seemed a bit magical. A few days ago, my curiosity found itself coupled with some free time. Here's what I found: What's in the QR Code I scanned the QR code from Github with a barcode scanning app. Here's what's inside: otpauth://totp/Github:rcoh?secret=onswg4tforrw6zdf&issuer=Github Not too surprising. It tells us the protocol, TOTP, who is issuing this OTP code (Github), and most importantly the secret:1 | |
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ajaykarwal.com
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| | | Personal Blog and Portfolio of Ajay Karwal | ||
