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# init(encryptionCert:signingCert:PASK:signingKey:)

Initializes a provider with the marketplace’s App License Delivery assets and their unique signing key.

```
init(encryptionCert: [UInt8], signingCert: [UInt8], PASK: [UInt8], signingKey: [UInt8]? = nil)
```

## Parameters

`encryptionCert`

Apple issued encryption certificate in bytes.

`signingCert`

Apple issued signing certificate in bytes.

`PASK`

Apple provided secret blob.

`signingKey`

Private key corresponding to the `signingCert` in `.DER` format with `ANS.1` encoding. This parameter is optional if you choose to sign the license response manually.

## Discussion

For an example that uses a provider, see [Licensing alternative distribution apps](/documentation/applicensedeliverysdk/licensing-alternative-distribution-apps).

---

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