encryption - 如何在 Node.js 中使用公钥加密数据？

Question

这个问题在这里已经有了答案:

Encrypting data with a public key in Node.js (6 个回答)

关闭 2年前.

在 crypto 中，我只看到 Signer/Verifier 用于进行数字签名和使用对称 key 加密的 Cipher/Decipher。

如何使用公钥加密数据？

Answer 1

正如官方 nodejs api 文档中所述: crypto.publicEncrypt(key, buffer)

Encrypts the content of buffer with key and returns a new Buffer with encrypted content. The returned data can be decrypted using the corresponding private key, for example using crypto.privateDecrypt().

If key is not a KeyObject, this function behaves as if key had beenpassed to crypto.createPublicKey(). If it is an object, the paddingproperty can be passed. Otherwise, this function usesRSA_PKCS1_OAEP_PADDING.

Because RSA public keys can be derived from private keys, a privatekey may be passed instead of a public key.

所以答案是:

var encrypted = crypto.publicEncrypt(publicKey, buffer);