---
title: SecExternalItemType.itemTypeAggregate
framework: security
role: symbol
role_heading: Case
path: security/secexternalitemtype/itemtypeaggregate
---

# SecExternalItemType.itemTypeAggregate

Indicates a set of certificates or certificates and private keys.

## Declaration

```swift
case itemTypeAggregate
```

## Discussion

Discussion Possible values include SecExternalFormat.formatPKCS7, SecExternalFormat.formatPKCS12, or SecExternalFormat.formatPEMSequence formats (see SecExternalFormat).