subtle.exportKey(format, key) | Node.js API 文档

版本历史

版本	变更
v24.18.0	Added JWK format support for ML-KEM key types.
v24.8.0	KMAC algorithms are now supported.
v24.7.0	ML-KEM algorithms are now supported.
v24.7.0	ChaCha20-Poly1305 algorithm is now supported.
v24.7.0	ML-DSA algorithms are now supported.
v18.4.0, v16.17.0	Added `'Ed25519'`, `'Ed448'`, `'X25519'`, and `'X448'` algorithms.
v15.9.0	Removed `'NODE-DSA'` JWK export.
v15.0.0	新增于: v15.0.0

format <string> 必须是 'raw'、'pkcs8'、'spki'、'jwk'、'raw-secret'⁴、'raw-public'⁴ 或 'raw-seed'⁴ 之一。
key <CryptoKey>
返回：<Promise> 成功时会触发一个 <ArrayBuffer> | <Object>。

如果支持，将给定的密钥导出为指定的格式。

🌐 Exports the given key into the specified format, if supported.

如果 <CryptoKey> 无法提取，返回的 Promise 将会被拒绝。

🌐 If the <CryptoKey> is not extractable, the returned promise will reject.

当 format 为 'pkcs8' 或 'spki' 且导出成功时，返回的 promise 将被解析为一个包含导出密钥数据的 <ArrayBuffer>。

🌐 When format is either 'pkcs8' or 'spki' and the export is successful, the returned promise will be resolved with an <ArrayBuffer> containing the exported key data.

当 format 为 'jwk' 且导出成功时，返回的 promise 将会以一个符合 JSON 网钥规范的 JavaScript 对象来解析。

🌐 When format is 'jwk' and the export is successful, the returned promise will be resolved with a JavaScript object conforming to the JSON Web Key specification.

查看关键格式了解每种算法支持的格式。

🌐 See Key formats for the formats supported by each algorithm.