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# init(certificate:objectID:)

Initializes a token keychain key with data from the specified certificate reference and a given object ID.

```
init?(certificate certificateRef: SecCertificate?, objectID: TKToken.ObjectID)
```

## Parameters

`certificateRef`

The certificate reference.

    You can create a     `SecCertificateRef`     value from a data object using the     `SecCertificateCreateWithData`     function.

`objectID`

The object ID.

## Return Value

A new token keychain certificate.

## Discussion

This is the designated initializer.

---

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