---
title: "createIntermediateCertificate(_:rootCertificate:intermediatePublicKey:issuerID:fabricID:validityPeriod:)"
framework: matter
role: symbol
role_heading: Type Method
path: "matter/mtrcertificates/createintermediatecertificate(_:rootcertificate:intermediatepublickey:issuerid:fabricid:validityperiod:)"
---

# createIntermediateCertificate(_:rootCertificate:intermediatePublicKey:issuerID:fabricID:validityPeriod:)

## Declaration

```swift
class func createIntermediateCertificate(_ rootKeypair: any MTRKeypair, rootCertificate: Data, intermediatePublicKey: SecKey, issuerID: NSNumber?, fabricID: NSNumber?, validityPeriod: DateInterval) throws -> Data
```