Token not matched with the Google Authenticator app

yeojz / otplib

:key: One Time Password (OTP) / 2FA for Node.js and Browser - Supports HOTP, TOTP and Google Authenticator

https://otplib.yeojz.dev

MIT License

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Token not matched with the Google Authenticator app #1

Closed imprabhu closed 10 years ago

imprabhu commented 10 years ago

I have gone through your otplib it was really useful, thanks for such an amazing tutorials.

i'm getting the qr-code successfully. but if i run the code it generating the TOKEN for every minute That's fine, But if i scan the code from the Google Authenticator App it generating different number. Actually So both the code are not same.

Thanks in advance.....

I want to know how to compare the Mobile App Token with my node js code. Please give any suggestion.

yeojz commented 10 years ago

hi @imprabhu

Try running the generator.js in examples folder and scan the barcode there, and see if it's showing the same on screen and in the authenticator.

Some possible problems:

For Authenticator, keys must be base32.
Since you're using TOTP, ensure that the time settings on both your server and devices are also accurate.

yeojz commented 10 years ago

Closing due to lack of response.