---
title: SecTransformAttribute
framework: security
role: symbol
role_heading: Type Alias
path: security/sectransformattribute
---

# SecTransformAttribute

A direct reference to a security transform attribute.

## Declaration

```swift
typealias SecTransformAttribute = CFTypeRef
```

## Discussion

Discussion Using an attribute reference rather than referring to it by name, such as in calls to the SecTransformCustomSetAttribute(_:_:_:_:) function, speeds up the operation.