---
title: "init(signingKeypair:fabricId:ipk:)"
framework: matter
role: symbol
role_heading: Initializer
path: "matter/mtrdevicecontrollerstartupparams/init(signingkeypair:fabricid:ipk:)"
---

# init(signingKeypair:fabricId:ipk:)

## Declaration

```swift
init(signingKeypair nocSigner: any MTRKeypair, fabricId: UInt64, ipk: Data)
```