---
title: SecDecryptTransformGetTypeID()
framework: security
role: symbol
role_heading: Function
path: security/secdecrypttransformgettypeid()
---

# SecDecryptTransformGetTypeID()

Returns the unique identifier of the opaque type to which a decryption transform belongs.

## Declaration

```swift
func SecDecryptTransformGetTypeID() -> CFTypeID
```

## Return Value

Return Value A value that identifies the opaque type of a SecTransform object meant for decryption.