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# decapsulate(_:)

Recovers a shared secret from an encapsulated representation.

```
func decapsulate(_ encapsulated: Data) throws -> SymmetricKey
```

## Parameters

`encapsulated`

The encapsulated shared secret that someone created using this key’s [`publicKey`](/documentation/CryptoKit/KEMPrivateKey/publicKey-swift.property).

## Return Value

The decapsulated shared secret.

---

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