Comments (1)
f3ndot
commented on July 2, 2024
You need only look at existing patterns and designs from other apps to determine what to do.
Some require you to click a "I don't have my phone" link or "login using backup codes" which keep the two keyspaces separate and probably allows for better monitoring of abuse. Other have a universal input field to which either an OTP or backup code will work.
I would prefer the former only because it's better UX to the user. You give them an opportunity to decide what to do with the leading question link, "Don't have you phone?" vs. them guessing where a backup code goes. Plus it helps you decouple what keyspace is being bruteforced: OTP or backup codes. Combining them, in theory, could increase an attacker's chances of getting in.
from devise-two-factor.
Related Issues (20)
- Clarification about setup with rails 6 HOT 1
- missing attribute: encrypted_otp_secret
- Remove "Rails 4" misleading sentences from readme
- NoMethodError Exception: undefined method `tr' for nil:NilClass HOT 1
- Require email verification when enabling Authenticator App type
- Generator throws exception HOT 1
- `Devise.add_module(:two_factor_authenticatable)` should be inserted on top
- calling super in the two factor strategy is problematic...
- Remove the old `otp_secret_encryption_key` in the UPGRADING.md guide
- Git tag for v4.1.0 appears to be missing HOT 2
- No changelog for 4.1.0
- `user.current_otp` code sent to user are always invalid HOT 1
- [question] mass users update?
- Not required on every login HOT 1
- Rails 7.1 on 4.x HOT 1
- Support for Rails 7.1 HOT 3
- ActiveRecord::Encryption::Errors::Decryption error on login after upgrade to Rails 7.1 defaults HOT 3
- Backup codes aren't written to the database so can't be used HOT 1
- Clarification on GHSA-chcr-x7hc-8fp8 HOT 8
- Lockbox instead of ActiveRecord encrypted attributes HOT 1
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from devise-two-factor.