在Forge Javascript Cryptography Library ，我很难弄清楚如何在使用后重建私钥和公钥。我尝试了以下操作:

var rsa = forge.pki.rsa;
var keypair = rsa.generateKeyPair({bits: 2048, e: 0x10001});
var ct = keypair.publicKey.encrypt("Arbitrary Message Here");
keypair.privateKey.decrypt(ct);

输出: "Arbitrary Message Here" 如预期的那样。我试图以这种方式重建公钥:

var nVal = JSON.stringify(keypair.publicKey.n);
var eVal = JSON.stringify(keypair.publicKey.e);
var nwRsa = rsa.setPublicKey(JSON.parse(nHere), JSON.parse(eHere));
var nwCt = nwRsa.encrypt("Arbitrary Message Here"); 

当我再次尝试加密消息时，出现错误:

"TypeError: Object #<Object> has no method 'bitLength'"

我不确定为什么，因为我相信我已经正确使用了这个方法:

/**
 * Sets an RSA public key from BigIntegers modulus and exponent.
 *
 * @param n the modulus.
 * @param e the exponent.
 *
 * @return the public key.
 */
pki.setRsaPublicKey = pki.rsa.setPublicKey = function(n, e) {
  var key = {
    n: n,
    e: e
  };

而且我什至还没有尝试重建私钥。我不确定我做错了什么，有人可以帮助我吗？一如既往地提前致谢!

额外的事后:这是我在我的 html 页面中导入的文件，我相信我已经解决了所有依赖性问题，但我以防万一(注意，它们不是按字母顺序排列的, 但按依赖顺序):

<script src="forge/util.js"></script>
<script src="forge/debug.js"></script>
<script src="forge/jsbn.js"></script>
<script src="forge/oids.js"></script>
<script src="forge/asn1.js"></script>
<script src="forge/sha1.js"></script>
<script src="forge/sha256.js"></script>
<script src="forge/md5.js"></script>
<script src="forge/md.js"></script> 
<script src="forge/aes.js"></script>
<script src="forge/prng.js"></script>
<script src="forge/random.js"></script>
<script src="forge/jsbn.js"></script> 
<script src="forge/pkcs1.js"></script>
<script src="forge/rsa.js"></script>

<script src="forge/des.js"></script>
<script src="forge/rc2.js"></script>
<script src="forge/pbe.js"></script>
<script src="forge/pem.js"></script>
<script src="forge/hmac.js"></script>
<script src="forge/pbkdf2.js"></script>
<script src="forge/pkcs7asn1.js"></script>
<script src="forge/pkcs12.js"></script>
<script src="forge/pss.js"></script>
<script src="forge/mgf1.js"></script>
<script src="forge/mgf.js"></script>
<script src="forge/x509.js"></script>
<script src="forge/pki.js"></script>

TL;DR:在 Forge 中，如何将自己的公钥提供给其他人，以及应该如何存储自己的私钥以供多次使用？

最佳答案

我很幸运能够通过提出 issue on Github 与开发人员取得联系。 .他给了我正确的使用方法，而且它们似乎都有效。直接引用，这里是正确的用法:

The easiest and most compatible way to transmit public keys or to store private keys is to convert them to PEM format. Private keys may be optionally encrypted when converting them (by using a different method, see below).

Converting a public key to/from PEM:

// convert a Forge public key to PEM-format
var pem = pki.publicKeyToPem(publicKey);

// convert a PEM-formatted public key to a Forge public key
var publicKey = pki.publicKeyFromPem(pem); Converting a private key to/from PEM:

// convert a Forge private key to PEM-format
// (preferred method if you don't want encryption)
var pem = pki.privateKeyToPem(privateKey);

// wraps and encrypts a Forge private key and outputs it in PEM format
// (preferred method if you do want encryption)
var pem = pki.encryptRsaPrivateKey(privateKey, 'password');

// encrypts a Forge private key and outputs it in PEM format using OpenSSL's
// proprietary legacy format + encapsulated PEM headers (DEK-Info)
// (perhaps more compatible with some legacy OpenSSL-based applications)
var pem = pki.encryptRsaPrivateKey(privateKey, 'password', {legacy: true});

// decrypts a PEM-formatted, encrypted private key
var privateKey = pki.decryptRsaPrivateKey(pem, 'password');

关于Javascript Forge 加密库 : recreating public and private keys for later reuse，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20067182/