---
title: "init(dataRepresentation:)"
framework: cryptokit
role: symbol
role_heading: Initializer
path: "cryptokit/secureenclave/p256/keyagreement/privatekey/init(datarepresentation:)"
---

# init(dataRepresentation:)

Creates a P-256 private key for key agreement from the specified data representation.

## Declaration

```swift
init(dataRepresentation: Data) throws
```

## Parameters

- `dataRepresentation`: A data representation of the key.