如何使用RSA公钥在Javascript中加密数据？

Question

服务器生成RSA公钥和私钥并将其存储在会话中。通过服务器调用，客户端html页面接收到公钥。现在我想使用它加密数据。我尝试使用jsencrypt，但它无法识别我的服务器生成的公钥。在设置公钥后调用加密时会返回false。我认为密钥长度为2048位，但编码不确定。如何使用此密钥加密数据？任何帮助都将不胜感激。

Sample public key generated by server: 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

编辑：如许多人建议的那样，我尝试使用加密：

let crypto;
try {
  crypto = require('crypto');
} catch (err) {
  console.log('crypto support is disabled!');
}
var encryptStringWithRsaPublicKey = function(toEncrypt, publicKey) {
  var buffer = Buffer.from(toEncrypt,'utf8');
  var encrypted = crypto.publicEncrypt(publicKey, buffer);
  return encrypted.toString("base64");
};
console.log(encryptStringWithRsaPublicKey('MyText','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'));

它抛出以下错误：

Uncaught TypeError: Cannot read property '2' of null
    at push../node_modules/parse-asn1/fixProc.js.module.exports (fixProc.js:19)
    at parseKeys (index.js:27)
    at Object.publicEncrypt (publicEncrypt.js:30)
    at encryptStringWithRsaPublicKey (App.js:20)
    at Module.<anonymous> (App.js:23)
    at Module../src/App.js (App.js:727)
    at __webpack_require__ (bootstrap:781)
    at fn (bootstrap:149)
    at Module../src/index.js (index.css?f3f6:45)
    at __webpack_require__ (bootstrap:781)
    at fn (bootstrap:149)
    at Object.0 (test.css?2a93:45)
    at __webpack_require__ (bootstrap:781)
    at checkDeferredModules (bootstrap:45)
    at Array.webpackJsonpCallback [as push] (bootstrap:32)
    at main.chunk.js:1

- anwesh mohapatra

---

可能重复 -> https://dev59.com/CmMm5IYBdhLWcg3wVt4s - daddygames

我认为这更像是在node.js中使用公钥加密数据的重复问题。 - Nino Filiu

尝试使用CryptoJS进行加密，但似乎失败了。任何帮助将不胜感激。 - anwesh mohapatra

Answer 1

你应该添加 -----BEGIN PUBLIC KEY----- 和 -----END PUBLIC KEY-----，就像这样。

-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQE...
-----END PUBLIC KEY-----`

- junho

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请注意，在关键字之后和之前必须是“enter”。我用 \n 在 js 中放置它。 - Radmehr