我试图更好地了解 RSA 加密,所以我让我的程序显示它生成的密钥,但根据我对 RSA 加密的理解,密钥应该只是数字,但我的程序有一长串数字、字符、和字母。
这是我的代码:
using System;
using System.Security.Cryptography;
using System.Text;
class Program
{
static void Main()
{
// Get user input for plaintext
Console.WriteLine("Enter the plaintext:");
string plaintext = Console.ReadLine();
// Generate RSA key pair (for simplicity, we use a fixed key size of 2048 bits)
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(2048))
{
// Display the public key
Console.WriteLine("Public Key:");
Console.WriteLine(rsa.ToXmlString(false));
// Encrypt the plaintext
byte[] plaintextBytes = Encoding.UTF8.GetBytes(plaintext);
byte[] encryptedBytes = rsa.Encrypt(plaintextBytes, fOAEP: false);
// Display the encrypted string
string encryptedString = Convert.ToBase64String(encryptedBytes);
Console.WriteLine("Encrypted Text:");
Console.WriteLine(encryptedString);
}
Console.ReadKey();
}
}
当我的程序显示公钥时,它看起来像这样
<RSAKeyValue>
<Modulus>m/DXR9Ld2vAAIS3sATZGx2z4lsZeeImu7qQzAW6j+EGIcU6ToGBOVK3kCYcbv+o884HT/hDj9M/FV9Tc/apaFREqucSw973pJyNXnp2bvO8DwO9XohBPX5lWognAWr4KDybMn9oBuqR4fAYck2ym1uYtXxGetSgf3+qgX9RcbZGi7ifafJyw1hGNLzpA6d5pZkyXUvrpDz4YLT5vbJ8xoFEFfxYV6zA5EZcEi/9w8IJaU/ypFpdmZhMtmDSXKSBJ9MVVridnAjwahwWuZNCp9rRsbsTiGEvPPvbnW1WXrbOxT41IrDuGr/gNX2GEkAv+SNVXUN8z2LcHtIHRTj7/GQ==</Modulus>
<Exponent>AQAB</Exponent>
</RSAKeyValue>
如果密钥纯粹是用数学和数字生成的,我不明白密钥看起来如何或为何如此?我唯一的想法就是这条线 Console.WriteLine(rsa.ToXmlString(false)); 但这行到底是什么意思?