> For the complete documentation index, see [llms.txt](https://docs.wem.io/platform/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wem.io/platform/wemreference/functions/security/totp.md).

# Totp

{% hint style="info" %}
The **`Totp()`** function calculates a time-based one-time password based on the given secret and given UTC time.

WIKI: <https://en.wikipedia.org/wiki/Time-based_one-time_password>

MyWEM Forum: <https://forum.wem.io/link?threadid=184>

This function is NOT SQL compatible. For more information about SQL compatibility, see our [documentation](/platform/wemreference/sql-compatibility.md).
{% endhint %}

{% hint style="success" %}
Returns a <mark style="color:green;">**`text`**</mark> value based on the given secret and UTC time, containing 6 numbers.\
Returns <mark style="color:red;">**`Unknown`**</mark> if one of the parameter values is unknown or outside the common valid boundaries. May throw a Server500 error when the secret is NOT a proper Base32 value with characters from the collection "`ABCDEFGHIJKLMNOPQRSTUVWXYZ234567`"
{% endhint %}

### Syntax

<details>

<summary><code>Totp(</code><mark style="color:blue;"><code>secret</code></mark><code>)</code></summary>

`Totp( "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567" )`\
\&#xNAN;*=> "838893" (UtcNow() is implicitly used as date-time value)*

</details>

<details>

<summary><code>Totp(</code><mark style="color:blue;"><code>secret</code></mark><code>, </code><mark style="color:blue;"><code>date</code></mark><code>)</code></summary>

`Totp("ABCDEFGHIJKLMNOPQRSTUVWXYZ234567",` [`Date`](/platform/wemreference/functions/date/date.md)`(2022,05,11,14,15,0))`\
\&#xNAN;*=> "527549"*

</details>

### Parameters

<table><thead><tr><th width="150">Name</th><th width="150">Type</th><th width="150" align="center">Required</th><th width="248.15953250810662">Description</th><th data-hidden>Required?</th></tr></thead><tbody><tr><td><mark style="color:blue;"><code>secret</code></mark></td><td>Base32 text</td><td align="center"><span data-gb-custom-inline data-tag="emoji" data-code="2611">☑️</span></td><td>secret the password is based on. Must be base32 encoded and must contain any of the characters from the collection as indicated in the syntax example. </td><td>yes</td></tr><tr><td><mark style="color:blue;"><code>date</code></mark></td><td>date time</td><td align="center"><span data-gb-custom-inline data-tag="emoji" data-code="2611">☑️</span></td><td>UTC time or time and interval the password is based on. </td><td>yes</td></tr></tbody></table>


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