没有图书馆必要的朋友，
输入密码
这是一个简单的小模块，可用于使用RSA密钥加密/解密字符串：
var crypto = require("crypto");var path = require("path");var fs = require("fs");var encryptStringWithRsaPublicKey = function(toEncrypt, relativeOrAbsolutePathToPublicKey) { var absolutePath = path.resolve(relativeOrAbsolutePathToPublicKey); var publicKey = fs.readFileSync(absolutePath, "utf8"); var buffer = Buffer.from(toEncrypt); var encrypted = crypto.publicEncrypt(publicKey, buffer); return encrypted.toString("base64");};var decryptStringWithRsaPrivateKey = function(toDecrypt, relativeOrAbsolutePathtoPrivateKey) { var absolutePath = path.resolve(relativeOrAbsolutePathtoPrivateKey); var privateKey = fs.readFileSync(absolutePath, "utf8"); var buffer = Buffer.from(toDecrypt, "base64"); var decrypted = crypto.privateDecrypt(privateKey, buffer); return decrypted.toString("utf8");};module.exports = { encryptStringWithRsaPublicKey: encryptStringWithRsaPublicKey, decryptStringWithRsaPrivateKey: decryptStringWithRsaPrivateKey}我建议不要在可能的情况下使用同步fs方法，并且可以使用Promises使其变得更好，但是对于简单的用例，这是我见过的方法并且会采用
