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/// <summary>
/// 非对称加密生成的私钥和公钥
/// </summary>
/// <param name="privateKey">私钥</param>
/// <param name="publicKey">公钥</param>
public static void GenerateRSAKey(out string privateKey, out string publicKey)
#region 非对称数据加密（公钥加密）
/// <summary>
/// 非对称加密字符串数据，返回加密后的数据
/// </summary>
/// <param name="publicKey">公钥</param>
/// <param name="originalString">待加密的字符串</param>
/// <returns>加密后的数据</returns>
public static string RSAEncrypt(string publicKey, string originalString)
/// <summary>
/// 非对称加密字节数组，返回加密后的数据
/// </summary>
/// <param name="publicKey">公钥</param>
/// <param name="originalBytes">待加密的字节数组</param>
/// <returns>返回加密后的数据</returns>
public static string RSAEncrypt(string publicKey, byte[] originalBytes)
#endregion
#region 非对称解密（私钥解密）
/// <summary>
/// 非对称解密字符串，返回解密后的数据
/// </summary>
/// <param name="privateKey">私钥</param>
/// <param name="encryptedString">待解密数据</param>
/// <returns>返回解密后的数据</returns>
public static string RSADecrypt(string privateKey, string encryptedString)
/// <summary>
/// 非对称解密字节数组，返回解密后的数据
/// </summary>
/// <param name="privateKey">私钥</param>
/// <param name="encryptedBytes">待解密数据</param>
/// <returns></returns>
public static string RSADecrypt(string privateKey, byte[] encryptedBytes)
#endregion
#region 非对称加密签名、验证
/// <summary>
/// 使用非对称加密签名数据
/// </summary>
/// <param name="privateKey">私钥</param>
/// <param name="originalString">待加密的字符串</param>
/// <returns>加密后的数据</returns>
public static string RSAEncrypSignature(string privateKey, string originalString)
/// <summary>
/// 对私钥加密签名的字符串，使用公钥对其进行验证
/// </summary>
/// <param name="originalString">未加密的文本，如机器码</param>
/// <param name="encrytedString">加密后的文本，如注册序列号</param>
/// <returns>如果验证成功返回True，否则为False</returns>
public static bool Validate(string originalString, string encrytedString)
/// <summary>
/// 对私钥加密的字符串，使用公钥对其进行验证
/// </summary>
/// <param name="originalString">未加密的文本，如机器码</param>
/// <param name="encrytedString">加密后的文本，如注册序列号</param>
/// <param name="publicKey">非对称加密的公钥</param>
/// <returns>如果验证成功返回True，否则为False</returns>
public static bool Validate(string originalString, string encrytedString, string publicKey)
2
//生成加解密私钥、公钥
string publicKey = "";
string privateKey = "";
RSASecurityHelper.GenerateRSAKey(out privateKey, out publicKey);
string originalString = "testdata";
string encryptedString = RSASecurityHelper.RSAEncrypt(publicKey, originalString);
string originalString2 = RSASecurityHelper.RSADecrypt(privateKey, encryptedString);
if (originalString == originalString2)
{
MessageUtil.ShowTips("解密完全正确");
}
else
{
MessageUtil.ShowWarning("解密失败");
}
string regcode = RSASecurityHelper.RSAEncrypSignature(privateKey, originalString);
bool validated = RSASecurityHelper.Validate(originalString, regcode, publicKey);
MessageUtil.ShowTips( validated ? "验证成功" : "验证失败");
3
/// <summary>
/// 每次程序运行时候,检查用户是否注册
/// </summary>
/// <returns>如果用户已经注册, 那么返回True, 否则为False</returns>
public bool CheckRegister()
{
// 先获取用户的注册码进行比较
string serialNumber = string.Empty; //注册码
RegistryKey reg = Registry.CurrentUser.OpenSubKey(UIConstants.SoftwareRegistryKey, true);
if (null != reg)
{
serialNumber = (string)reg.GetValue("SerialNumber");
Portal.gc.bRegisted = Portal.gc.Register(serialNumber);
}
return Portal.gc.bRegisted;
}
/// <summary>
/// 调用非对称加密方式对序列号进行验证
/// </summary>
/// <param name="serialNumber">正确的序列号</param>
/// <returns>如果成功返回True，否则为False</returns>
public bool Register(String serialNumber)
{
string hardNumber = HardwareInfoHelper.GetCPUId();
return RSASecurityHelper.Validate(hardNumber, serialNumber);
}
public string GetHardNumber()
{
return HardwareInfoHelper.GetCPUId();
}
非对称加密、解密、验证辅助类 RSASecurityHelper
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原文地址：http://www.cnblogs.com/watchfluture/p/4668248.html
