---
title: "init(CSRNonce:csrElementsTLV:attestationSignature:)"
framework: matter
role: symbol
role_heading: Initializer
path: "matter/mtroperationalcsrinfo/init(csrnonce:csrelementstlv:attestationsignature:)-7tep6"
---

# init(CSRNonce:csrElementsTLV:attestationSignature:)

## Declaration

```swift
init?(CSRNonce csrNonce: Data, csrElementsTLV: Data, attestationSignature: Data)
```