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# HmacImportParams

The **`HmacImportParams`** dictionary represents the object that should be passed as the `algorithm` parameter into `SubtleCrypto.importKey`, when generating a key for the `HMAC` algorithm.

## Instance properties

- `name`
  - : A string. This should be set to `HMAC`.
- `hash`

  - : A string representing the name of the digest function to use. The can take a value of `SHA-1`, `SHA-256`, `SHA-384`, or `SHA-512`.

- `length` _optional_
  - : A `Number` representing the length in bits of the key. If this is omitted the length of the key is equal to the length of the digest generated by the digest function you have chosen. Unless you have a good reason to use a different length, omit this property and use the default.

