Drew DeVault • 10/18/2022

TOTP for 2FA is incredibly easy to implement. So what's your excuse?

This article provides a detailed, practical guide to implementing Time-based One-Time Password (TOTP) for two-factor authentication. It explains the core algorithm, offers public domain code examples in Python and Hare, and argues for its superiority over SMS-based 2FA due to increased security and ease of implementation. It also includes an important update about the necessity of rate-limiting TOTP attempts.

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#Python #authentication #2fa