subtle.decapsulateKey(decapsulationAlgorithm, decapsulationKey, ciphertext, sharedKeyAlgorithm, extractable, usages)

• decapsulationAlgorithm <string>

• decapsulationKey <CryptoKey>

• ciphertext <ArrayBuffer> | <TypedArray> | <DataView> | <Buffer>

• sharedKeyAlgorithm <string> | <HmacImportParams>

• extractable <boolean>

• usages <string[]> 参见 关键用法。

  ¥usages <string[]> See Key usages.

• 返回：<Promise> 成功时将使用 <CryptoKey> 履行。

  ¥Returns: <Promise> Fulfills with <CryptoKey> upon success.

消息接收者使用其非对称私钥解密 "封装密钥"（密文），从而恢复临时对称密钥（表示为 <CryptoKey>），然后使用该密钥解密消息。

¥A message recipient uses their asymmetric private key to decrypt an "encapsulated key" (ciphertext), thereby recovering a temporary symmetric key (represented as <CryptoKey>) which is then used to decrypt a message.

目前支持的算法包括：

¥The algorithms currently supported include:

• 'ML-KEM-512'⁴

• 'ML-KEM-768'⁴

• 'ML-KEM-1024'⁴