RSAHelper.cs
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using HHECS.BllModel;
using System;
using System.Collections.Generic;
using System.IO;
using System.Security.Cryptography;
using System.Text;
namespace HHECS.Infrastructure.CommonHelper
{
public class RSAHelper
{
/// <summary>
/// 创建RSA公钥私钥
/// 输出到字符串
/// </summary>
public static void CreateRSAKey(out string privateKey, out string publicKey)
{
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider())
{
privateKey = rsa.ToXmlString(true);
publicKey = rsa.ToXmlString(false);
}
}
/// <summary>
/// 创建RSA公钥私钥
/// 输出到XML文件
/// </summary>
public static void CreateRSAKey(string privateKeyPath, string publicKeyPath)
{
string privateKey = null;
string publicKey = null;
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider())
{
privateKey = rsa.ToXmlString(true);
publicKey = rsa.ToXmlString(false);
}
//文件内包含公钥和私钥
File.WriteAllText(privateKeyPath, privateKey);
//文件内只包含公钥
File.WriteAllText(publicKeyPath, publicKey);
}
///// <summary>
///// RSA加密
///// 从文件中读取公钥
///// </summary>
///// <param name="data"></param>
///// <param name="publicKeyPath"></param>
///// <returns></returns>
//public static BllResult<string> Encrypt(string data, string publicKeyPath)
//{
// try
// {
// if (string.IsNullOrEmpty(data) || string.IsNullOrWhiteSpace(publicKeyPath))
// {
// return BllResultFactory.Error<string>("未传入参数");
// }
// if(!File.Exists(publicKeyPath))
// {
// return BllResultFactory.Error<string>("文件路径对应的文件不存在");
// }
// string publicKey = File.ReadAllText(publicKeyPath);
// string publicStr = null;
// using (RSACryptoServiceProvider rsaPublic = new RSACryptoServiceProvider())
// {
// rsaPublic.FromXmlString(publicKey);
// byte[] publicValue = rsaPublic.Encrypt(Encoding.Unicode.GetBytes(data), false);
// publicStr = Convert.ToBase64String(publicValue);
// }
// return BllResultFactory.Success(publicStr,"成功");
// }
// catch(Exception ex)
// {
// return BllResultFactory.Error<string>($"异常：{ex.Message}");
// }
//}
/// <summary>
/// RSA加密
/// 直接传入公钥
/// </summary>
/// <param name="data"></param>
/// <param name="publicKey"></param>
/// <returns></returns>
public static BllResult<string> Encrypt(string data, string publicKey)
{
try
{
if (string.IsNullOrEmpty(data) || string.IsNullOrWhiteSpace(publicKey))
{
return BllResultFactory.Error<string>("未传入参数");
}
byte[] publicValue;
//创建RSA对象并载入[公钥]
using (RSACryptoServiceProvider rsaPublic = new RSACryptoServiceProvider())
{
rsaPublic.FromXmlString(publicKey);
byte[] bytedata = Encoding.Unicode.GetBytes(data);
//对数据进行加密
publicValue = rsaPublic.Encrypt(bytedata, false);
}
return BllResultFactory.Success(Convert.ToBase64String(publicValue), "成功");
}
catch(Exception ex)
{
return BllResultFactory.Error<string>($"异常：{ex.Message}");
}
}
///// <summary>
///// RSA解密
///// 从文件中读取秘钥
///// </summary>
///// <param name="data"></param>
///// <param name="privateKeyPath"></param>
///// <returns></returns>
//public static BllResult<string> Decrypt(string data, string privateKeyPath)
//{
// try
// {
// if (string.IsNullOrEmpty(data) || string.IsNullOrWhiteSpace(privateKeyPath))
// {
// return BllResultFactory.Error<string>("未传入参数");
// }
// if (!File.Exists(privateKeyPath))
// {
// return BllResultFactory.Error<string>("文件路径对应的文件不存在");
// }
// string privateKey = File.ReadAllText(privateKeyPath);
// string privateStr = null;
// using (RSACryptoServiceProvider rsaPrivate = new RSACryptoServiceProvider())
// {
// rsaPrivate.FromXmlString(privateKey);
// byte[] bytedata = Convert.FromBase64String(data);
// byte[] privateValue = rsaPrivate.Decrypt(bytedata, false);
// privateStr = Encoding.Unicode.GetString(privateValue);
// }
// return BllResultFactory.Success(privateStr,"成功");
// }
// catch(Exception ex)
// {
// return BllResultFactory.Error<string>($"异常：{ex.Message}");
// }
//}
/// <summary>
/// RSA解密
/// 直接传入秘钥
/// </summary>
/// <param name="data"></param>
/// <param name="privateKey"></param>
/// <returns></returns>
public static BllResult<string> Decrypt(string data, string privateKey)
{
try
{
if (string.IsNullOrEmpty(data) || string.IsNullOrWhiteSpace(privateKey))
{
return BllResultFactory.Error<string>("未传入参数");
}
byte[] privateValue;
//创建RSA对象并载入[私钥]
using (RSACryptoServiceProvider rsaPrivate = new RSACryptoServiceProvider())
{
rsaPrivate.FromXmlString(privateKey);
//使用Base64将string转换为byte
byte[] bytedata = Convert.FromBase64String(data);
//对数据进行解密
privateValue = rsaPrivate.Decrypt(bytedata, false);
}
return BllResultFactory.Success(Encoding.Unicode.GetString(privateValue),"成功");
}
catch(Exception ex)
{
return BllResultFactory.Error<string>($"异常：{ex.Message}");
}
}
}
}