This n8n workflow is designed to validate Time-based One-Time Passwords (TOTP), commonly used in two-factor authentication (2FA) systems. When triggered manually, it verifies whether a provided 6-digit code matches the valid code generated from a secret key, ensuring secure user authentication.
The workflow begins with a manual trigger, allowing the user to initiate the process interactively. It then employs a Python code node that contains a custom script for TOTP validation based on RFC 6238 standards. This script decodes a base32 secret, generates a current TOTP code, and compares it with the user-provided code.
A subsequent ‘IF’ node evaluates whether the validation was successful (i.e., the codes match). If the code is valid, the workflow can proceed with further actions such as granting access or confirming login. If invalid, it can trigger alerts or denial responses.
Practical uses for this workflow include integrating TOTP validation into custom login pages, automated security checks, or multi-factor authentication processes within a broader service or application. It empowers users or systems to programmatically verify 2FA codes, enhancing security workflows.
Overall, this setup simplifies the implementation of secure, code-based authentication mechanisms using n8n automation, ensuring flexible integration with existing authentication systems.
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