Question

我可以在客户端使用jsbn成功生成公钥/私钥对。使用这些密钥加密和解密客户端是很好的。我也可以将该公钥传输到服务器并通过PHP将其存储在MySQL中。

我无法使用jsbn公钥在PHP中加密某些内容，然后使用jsbn私钥对客户端进行解密。

// attempting to encrypt in PHP using the jsbn public key.
// (this public key came from jsbn client side)
$jsbn_public_key = '763989d1f75a779dae752ac236b011e85f9496bb414d72f5e89bf44274a942277fab2d4f5c58a57634d4000eecc8009d2efaeff17aa4a0efae2c4d41f3423be88be043628c6bac86f97deaadf23231793e6fa02550fb2ca65b2600e074205d23338e28ab3c5e92265e6bd7995c173085e3dc042e59ef464c5ed058c3ad863911';
$rsa = new Crypt_RSA();
$rsa->setPublicKeyFormat(CRYPT_RSA_PUBLIC_FORMAT_PKCS1); // tried various options here.
$public_key = array(
    'n' => new Math_BigInteger($jsbn_public_key, 16),
    'e' => new Math_BigInteger('65537', 10), // same value as jsbn
);
$rsa->loadKey($public_key,CRYPT_RSA_PUBLIC_FORMAT_RAW);  // tried various options here.
$ciphertext = $rsa->encrypt($value);
$ciphertext_web_safe = bin2hex($ciphertext); // I think this is where the problem is!
// $ciphertext_web_safe looks something like this:
// 1b02bee0422028accba74f37e6e6974125fd16bdf83a72b8d6462e140ee6e85adae869fddc5e83635aaf90bc6074a3128890eeadf9537c33ebdfd665e16a3f1b617fa2fa5454f469e84f86d77ffcbc234dfc8a32291fbc84df61a0098c97fd90bb10204f68e783d9996678cd7853f3cbd932a4a067cb7f4f9eb62ca0542964f6
// which is exactly the same length as an encrypted string generated by jsbn

这是客户端加密：

var my_rsa = {
    ....
    e: "65537",
    public_key: '763989d1f75a779dae752ac236b011e85f9496bb414d72f5e89bf44274a942277fab2d4f5c58a57634d4000eecc8009d2efaeff17aa4a0efae2c4d41f3423be88be043628c6bac86f97deaadf23231793e6fa02550fb2ca65b2600e074205d23338e28ab3c5e92265e6bd7995c173085e3dc042e59ef464c5ed058c3ad863911',
    encrypt: function(value){
        var rsakey = new RSAKey();
        rsakey.setPublic(this.public_key, this.e);
        return rsakey.encrypt(value);
    },
    decrypt: function(ciphertext){
        var rsakey = new RSAKey();
        rsakey.setPrivateEx(this.public_key, this.e, this.private_key.d, this.private_key.p, this.private_key.q, this.private_key.dmp1, this.private_key.dmq1, this.private_key.coeff);
        return rsakey.decrypt(ciphertext);
    },
    ....
};

当我尝试解密JavaScript中的'$ ciphertext_web_safe'值时，我只得到一个空字符串。控制台日志等没有错误。

PHP中使用的“bin2hex”有问题吗？在将加密的二进制数据转换为十六进制之前是否应该使用某种填充等？

干杯，戴夫

Answer 1

我的问题是javascript中的“e”。

我将“65537”更改为“010001”，现在我可以使用公钥和PHP加密服务器端。呼！

phpseclib / jsbn：使用PHP中的公钥加密，使用jsbn中的私钥解密

1 个答案: