如何在不更改C#中密钥的情况下将RSAParameters密钥导入和导出到文件

using System;
using System.IO;
using System.Security.Cryptography;

public class RSAKeyExporter
{
    public static void ExportKeyToFile(RSAParameters rsaParams, string privateKeyPath, string publicKeyPath)
    {
        using (var rsa = new RSACryptoServiceProvider())
        {
            rsa.ImportParameters(rsaParams);
            File.WriteAllText(privateKeyPath, rsa.ToXmlString(true));
            File.WriteAllText(publicKeyPath, rsa.ToXmlString(false));
        }
    }
}

using System;
using System.IO;
using System.Security.Cryptography;

public class RSAKeyImporter
{
    public static RSAParameters ImportKeyFromFile(string privateKeyPath, string publicKeyPath)
    {
        using (var rsa = new RSACryptoServiceProvider())
        {
            rsa.FromXmlString(File.ReadAllText(privateKeyPath));
            return rsa.ExportParameters(true);
        }
    }
}