---
title: unwrapKey
framework: webkitjs
role: symbol
role_heading: Instance Method
path: webkitjs/subtlecrypto/1633652-unwrapkey
---

# unwrapKey

## Declaration

```data
Promise <CryptoKey> unwrapKey(
    KeyFormat format, 
    BufferSource wrappedKey, 
    CryptoKey unwrappingKey, 
    AlgorithmIdentifier unwrapAlgorithm, 
    AlgorithmIdentifier unwrappedKeyAlgorithm, 
    boolean extractable, 
    sequence <KeyUsage> keyUsages
);
```