---
title: cssm_key
framework: Security
role: symbol
role_heading: Structure
platforms: [macOS 10.0+]
path: security/cssm_key-c.struct
---

# cssm_key

## Declaration

```occ
struct cssm_key;
```

## Topics

### Instance Properties

- [KeyData](security/cssm_key-c.struct/keydata.md)
- [KeyHeader](security/cssm_key-c.struct/keyheader.md)