---
title: MTRKeypair
framework: matter
role: symbol
role_heading: Protocol
path: matter/mtrkeypair
---

# MTRKeypair

## Declaration

```swift
protocol MTRKeypair : NSObjectProtocol
```

## Mentioned in

Onboarding a Matter device

## Topics

### Instance Methods

- [publicKey()](matter/mtrkeypair/publickey().md)
- [signMessageECDSA_DER(_:)](matter/mtrkeypair/signmessageecdsa_der(_:).md)
- [signMessageECDSA_RAW(_:)](matter/mtrkeypair/signmessageecdsa_raw(_:).md)
- [copyPublicKey()](matter/mtrkeypair/copypublickey().md)

## Relationships

### Inherits From

- [NSObjectProtocol](objectivec/nsobjectprotocol.md)