subtle.sign(algorithm, key, data)
algorithm: <AlgorithmIdentifier> | <RsaPssParams> | <EcdsaParams> | <Ed448Params>key: <CryptoKey>data: <ArrayBuffer> | <TypedArray> | <DataView> | <Buffer>- 返回：包含 <ArrayBuffer> 的 <Promise>
使用 algorithm 提供的方法和参数以及 key 提供的密钥材料，subtle.sign() 尝试生成 data 的加密签名。如果成功，返回的 Promise 将会被解决，并返回一个包含生成签名的 <ArrayBuffer>。
🌐 Using the method and parameters given by algorithm and the keying material
provided by key, subtle.sign() attempts to generate a cryptographic
signature of data. If successful, the returned promise is resolved with
an <ArrayBuffer> containing the generated signature.
目前支持的算法包括：
🌐 The algorithms currently supported include: