使用 RSA public 密钥加密文本文件

Encrypt text file using RSA public key

我得到了一个 Public 密钥(key.pub 文件) 并且使用相同的密钥,我想加密 XML 文件使用我的 C# 应用程序。

文件结构如下:

-----BEGIN PUBLIC KEY-----

xxxxxxxxxxxxxxxxxxxxyyyyyyyyyyyyyyyyyyyyyyxxxxxxxxxxxxxxxxxxxxxx aaaaaaaaaaaaaaabbbbbbbbbbbbbbzzzzzzzzzzzzzzzzbbbbbbbbbbbbbbbbbbb yyyyyyyyyyyyyyyyyyyyyyyyzzzzzzzzzzzzzzuuuuuuuuuuuuuuuuaaaaaaauuu pppppppppppppppaao==

-----END PUBLIC KEY-----

public  string Encryption(string strText)
{ 
  var publicKey = "XXXXXXXXXXXXX The Key Value XXXXXXXXXXXXX";
  var testData = Encoding.UTF8.GetBytes(strText);
  RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(1024);

  // client encrypting data with a public key issued by server                    
    rsa.FromXmlString(publicKey.ToString());

   var encryptedData = rsa.Encrypt(testData, true);

   var base64Encrypted = Convert.ToBase64String(encryptedData);

    string retval = base64Encrypted.ToString();

    if (HaxVal1.Equals(HaxVal))
    {
        return retval;
    }
    else
    {
        return "InvalidSignature";
    }
}