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Many services implement 2FA (Two factor authentication) by sending
you a OTP (One Time Password) using an SMS with a random code, but this
forces you to give them your valuable phone number. What alternatives do
Let's dive into the HOTP,
used by some banks years ago through a physical token and the recent TOTP,
which both let you generate completely offline codes without
using any phone number or any other personal detail. They use the HMAC technique usually
with a SHA-1 one-way hashing function, but other hashing functions can
be used too.
Comment #1 posted on 2023-02-07 21:22:10 by Zen_floater2
Thank you for making this podcast
I found your version of two factor authorization interesting and would love it if more companies implemented common sense rather than marketing.
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