keyObject.toCryptoKey(algorithm, extractable, keyUsages)

• algorithm <string> | <RsaHashedImportParams> | <EcKeyImportParams> | <HmacImportParams>

• extractable <boolean>

• keyUsages <string[]> 参见 关键用法。

  ¥keyUsages <string[]> See Key usages.

• 返回：<CryptoKey>

  ¥Returns: <CryptoKey>

将 KeyObject 实例转换为 CryptoKey。

¥Converts a KeyObject instance to a CryptoKey.