---
title: "Why is the FPE policy not set for a key?"
slug: "why-is-the-fpe-policy-not-set-for-a-key"
updated: 2025-03-12T07:52:49Z
published: 2025-03-12T07:52:49Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.fortanix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Why is the FPE policy not set for a key?

When a tokenization key is created, a Format-Preserving Encryption (FPE) policy is set by default. This policy is not applied to a normal AES key but only to a tokenization key.