---
title: elementsSignature
framework: matter
role: symbol
role_heading: Instance Property
path: matter/mtrdeviceattestationdeviceinfo/elementssignature
---

# elementsSignature

A signature, using the device attestation private key of the device that sent the attestation information, over the concatenation of elementsTLV and attestationChallenge.

## Declaration

```swift
var elementsSignature: Data { get }
```