index.md

---

title: AesKeyGenParams
slug: Web/API/AesKeyGenParams
page-type: web-api-interface
spec-urls: https://w3c.github.io/webcrypto/#dfn-AesKeyGenParams

---

{{ APIRef("Web Crypto API") }}

The AesKeyGenParams dictionary of the Web Crypto API represents the object that should be passed as the algorithm parameter into {{domxref("SubtleCrypto.generateKey()")}}, when generating an AES key: that is, when the algorithm is identified as any of AES-CBC, AES-CTR, AES-GCM, or AES-KW.

Instance properties

• name

  • : A string. This should be set to AES-CBC, AES-CTR, AES-GCM, or AES-KW, depending on the algorithm you want to use.

• length

  • : A Number — the length in bits of the key to generate. This must be one of: 128, 192, or 256.

Examples

See the examples for {{domxref("SubtleCrypto.generateKey()")}}.

Specifications

{{Specifications}}

Browser compatibility

Browsers that support any of the AES-based algorithms for the {{domxref("SubtleCrypto.generateKey()")}} method will support this type.

See also

• {{domxref("SubtleCrypto.generateKey()")}}.