subtle.digest(algorithm, data)

• algorithm：<string> | <AlgorithmIdentifier>

• data：<ArrayBuffer> | <TypedArray> | <DataView> | <Buffer>

• 返回：<Promise> 成功后使用 <ArrayBuffer> 完成。

  ¥Returns: <Promise> Fulfills with an <ArrayBuffer> upon success.

使用 algorithm 标识的方法，subtle.digest() 尝试生成 data 的摘要。如果成功，返回的 promise 将使用包含计算摘要的 <ArrayBuffer> 进行解析。

¥Using the method identified by algorithm, subtle.digest() attempts to generate a digest of data. If successful, the returned promise is resolved with an <ArrayBuffer> containing the computed digest.

如果 algorithm 作为 <string> 提供，则它必须是以下之一：

¥If algorithm is provided as a <string>, it must be one of:

• 'SHA-1'

• 'SHA-256'

• 'SHA-384'

• 'SHA-512'

如果 algorithm 作为 <Object> 提供，则它必须具有值为上述之一的 name 属性。

¥If algorithm is provided as an <Object>, it must have a name property whose value is one of the above.