---
title: "signMessageECDSA_RAW(_:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrkeypair/signmessageecdsa_raw(_:)"
---

# signMessageECDSA_RAW(_:)

## Declaration

```swift
optional func signMessageECDSA_RAW(_ message: Data) -> Data
```