---
title: "init(deviceAttestationChallenge:nonce:elementsTLV:elementsSignature:deviceAttestationCertificate:productAttestationIntermediateCertificate:certificationDeclaration:firmwareInfo:)"
framework: matter
role: symbol
role_heading: Initializer
path: "matter/mtrdeviceattestationinfo/init(deviceattestationchallenge:nonce:elementstlv:elementssignature:deviceattestationcertificate:productattestationintermediatecertificate:certificationdeclaration:firmwareinfo:)"
---

# init(deviceAttestationChallenge:nonce:elementsTLV:elementsSignature:deviceAttestationCertificate:productAttestationIntermediateCertificate:certificationDeclaration:firmwareInfo:)

## Declaration

```swift
init(deviceAttestationChallenge challenge: Data, nonce: Data, elementsTLV: Data, elementsSignature: Data, deviceAttestationCertificate: Data, productAttestationIntermediateCertificate processAttestationIntermediateCertificate: Data, certificationDeclaration: Data, firmwareInfo: Data)
```