---
title: "init(CSR:csrNonce:csrElementsTLV:attestationSignature:)"
framework: matter
role: symbol
role_heading: Initializer
path: "matter/mtroperationalcsrinfo/init(csr:csrnonce:csrelementstlv:attestationsignature:)-2l26j"
---

# init(CSR:csrNonce:csrElementsTLV:attestationSignature:)

## Declaration

```swift
init(CSR csr: Data, csrNonce: Data, csrElementsTLV: Data, attestationSignature: Data)
```