---
title: "init(challenge:nonce:elements:elementsSignature:dac:pai:certificationDeclaration:firmwareInfo:)"
framework: matter
role: symbol
role_heading: Initializer
path: "matter/attestationinfo/init(challenge:nonce:elements:elementssignature:dac:pai:certificationdeclaration:firmwareinfo:)"
---

# init(challenge:nonce:elements:elementsSignature:dac:pai:certificationDeclaration:firmwareInfo:)

## Declaration

```swift
init(challenge: Data, nonce: Data, elements: Data, elementsSignature: Data, dac: Data, pai: Data, certificationDeclaration: Data, firmwareInfo: Data)
```