---
type: concept
title: TOTP Configuration Parameters
tags: [totp, 2fa, security-configuration]
related: [2-factor-authentication]
created: 2026-07-01
updated: 2026-07-01
sources: ["output/rz_uni_greifswald_de_support_faq_zwei_faktor_authentifizierung_2fa.md"]
---

# TOTP Configuration Parameters

When manually configuring a TOTP (Time-based One-Time Password) authenticator app (such as [[freeotp]] or [[keepassxc]]) for university services, the following technical parameters must be used to ensure the generated codes are valid:

- **Number of Characters (Digits)**: 6
- **Hashing Algorithm**: SHA1
- **Time Interval (Step)**: 30 seconds

Failure to use these exact parameters will result in an "Invalid TOTP Code" error during authentication.
