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py2fa vs U2F Zero

A side-by-side look at py2fa and U2F Zero. For an in-depth review of either product, follow the links below.

py2fa

py2fa

Security & Privacy

py2fa is an open-source Python library for implementing two-factor authentication (2FA). It supports time-based one-time passwords (TOTP) and HMAC-based one-time passwords (HOTP). py2fa makes it easy to add 2FA to Python applications and websites by handling the cryptographic operations and providing utilities for generating/validating tokens.

twofactor-authenticationotptotphotppython
U2F Zero

U2F Zero

Security & Privacy

U2F Zero is an open-source USB security key that supports the Universal 2nd Factor (U2F) authentication standard. It is designed to be small, inexpensive, and easy for users to carry for strengthening logins to websites.

u2fauthenticationopen-sourcehardware-token

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