RSACryptoServiceProvider使用自己的公钥和私钥加密和解密 [英] RSACryptoServiceProvider encrypt and decrypt using own public and private key

问题描述

我被告知，对于非对称密码术，您使用公钥加密明文，并用您的私钥解密。所以我尝试了以下内容：

  static void Main（string [] args）
 {
 RSACryptoServiceProvider rsa = new RSACryptoServiceProvider（）; 
 string pubkey = rsa.ToXmlString（false）; 
 string prikey = rsa.ToXmlString（true）; 
 
 byte [] someThing = RSAEncrypt（Encoding.Unicode.GetBytes（Hello World），pubkey）; 
 byte [] anotherThing = RSADecrypt（someThing，prikey）; 
 
 Console.WriteLine（Convert.ToBase64String（anotherThing））; 
} 
  

加密和解密功能

  public static byte [] RSAEncrypt（byte [] plaintext，string destKey）
 {
 byte [] encryptedData; 
 RSACryptoServiceProvider rsa = new RSACryptoServiceProvider（）; 
 rsa.FromXmlString（destKey）; 
 encryptedData = rsa.Encrypt（plaintext，true）; 
 rsa.Dispose（）; 
 return encryptedData; 
} 
 
 public static byte [] RSADecrypt（byte [] ciphertext，string srcKey）
 {
 byte [] decryptptedData; 
 RSACryptoServiceProvider rsa = new RSACryptoServiceProvider（）; 
 rsa.FromXmlString（srcKey）; 
 decryptptedData = rsa.Decrypt（ciphertext，true）; 
 rsa.Dispose（）; 
 return decryptptedData; 
} 
  

我期待控制台显示 Hello World ，但它显示这个 SABlAGwAbABvACAAVwBvAHIAbABkAA == 。我使用RSACryptoServiceProvider错误吗？

解决方案

它是基础64，解码字符串，你会得到Hello world p>

I'm told that for asymmetric cryptography you encrypt plaintext with your public key and decrypt it with your private key. So i've tried the following:

    static void Main(string[] args)
    {
        RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
        string pubkey = rsa.ToXmlString(false);
        string prikey = rsa.ToXmlString(true);

        byte[] someThing = RSAEncrypt(Encoding.Unicode.GetBytes("Hello World"), pubkey);
        byte[] anotherThing = RSADecrypt(someThing, prikey);

        Console.WriteLine(Convert.ToBase64String(anotherThing));
    }

and the encrypt and decrypt functions

    public static byte[] RSAEncrypt(byte[] plaintext, string destKey)
    {
        byte[] encryptedData;
        RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
        rsa.FromXmlString(destKey);
        encryptedData = rsa.Encrypt(plaintext, true);
        rsa.Dispose();
        return encryptedData;
    }

    public static byte[] RSADecrypt(byte[] ciphertext, string srcKey)
    {
        byte[] decryptedData;
        RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
        rsa.FromXmlString(srcKey);
        decryptedData = rsa.Decrypt(ciphertext, true);
        rsa.Dispose();
        return decryptedData;
    }

I'm expecting the console to display Hello World, but it displays this SABlAGwAbABvACAAVwBvAHIAbABkAA==. Am i using RSACryptoServiceProvider wrongly?

解决方案

It is base 64, decode the string and you will get "Hello world".

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