---
title: "generateRootCertificate(_:issuerId:fabricId:)"
framework: matter
role: symbol
role_heading: Type Method
path: "matter/mtrcertificates/generaterootcertificate(_:issuerid:fabricid:)"
---

# generateRootCertificate(_:issuerId:fabricId:)

## Declaration

```swift
class func generateRootCertificate(_ keypair: any MTRKeypair, issuerId: NSNumber?, fabricId: NSNumber?) throws -> Data
```