# Pbkdf2

{% hint style="info" %}
The **`PBKDF2()`** function creates a secure password hash for a password and a salt by using the PBKDF2 hashing algorithm with 1000 iterations.

WIKI: <http://en.wikipedia.org/wiki/PBKDF2>

This function is NOT SQL compatible. For more information about SQL compatibility, see our [documentation](https://docs.wem.io/platform/wemreference/sql-compatibility).

*Hashed values cannot be decoded, usually you check an incoming value against a known value that you hash yourself and check if both values are identical, to verify correctness without knowing the actual value.*
{% endhint %}

{% hint style="success" %}
Returns a text that contains a hash key of 40 characters.\
Returns <mark style="color:red;">unknown</mark> if the salt length is less than 8
{% endhint %}

### Syntax

<details>

<summary><code>Password(</code><mark style="color:blue;"><code>password</code></mark><code>, </code><mark style="color:blue;"><code>salt</code></mark><code>)</code></summary>

`PBKDF2("*Kky32o7","E1F53135E559C253")`\
\&#xNAN;*=> "e28247b343ca7dba657a207efc4c884f582f1b92"*

</details>

### Parameters

<table><thead><tr><th width="164.70825474075613">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>password</code></mark></td><td>text</td><td align="center"><span data-gb-custom-inline data-tag="emoji" data-code="2611">☑️</span></td><td>text containing a password</td><td>yes</td></tr><tr><td><mark style="color:blue;"><code>salt</code></mark></td><td>text</td><td align="center"><span data-gb-custom-inline data-tag="emoji" data-code="2611">☑️</span></td><td>a salt text. The value must be at least 8 characters long. An unknown value is returned if the length is less than 8.</td><td></td></tr></tbody></table>


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