---
title: errSecMissingAttributeSymmetricKeyFormat
framework: security
role: symbol
role_heading: Global Variable
path: security/errsecmissingattributesymmetrickeyformat
---

# errSecMissingAttributeSymmetricKeyFormat

A symmetric key format attribute is missing.

## Declaration

```swift
var errSecMissingAttributeSymmetricKeyFormat: OSStatus { get }
```