md5盐值加密

using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Web;

namespace sci_project
{
public static class PasswordHelper
{
/// <summary>
/// MD5 加密字符串
/// </summary>
/// <param name="rawPass">源字符串</param>
/// <returns>加密后字符串</returns>
private static string MD5Encoding(string rawPass)
{
// 创建MD5类的默认实例：MD5CryptoServiceProvider
MD5 md5 = MD5.Create();
byte[] bs = Encoding.UTF8.GetBytes(rawPass);
byte[] hs = md5.ComputeHash(bs);
StringBuilder sb = new StringBuilder();
foreach (byte b in hs)
{
// 以十六进制格式格式化
sb.Append(b.ToString("x2"));
}
return sb.ToString();
}

/// <summary>
/// MD5盐值加密
/// </summary>
/// <param name="rawPass">源字符串</param>
/// <param name="salt">盐值</param>
/// <returns>加密后字符串</returns>
public static string MD5Encoding(string rawPass, object salt)
{
if (salt == null) return rawPass;
return MD5Encoding(rawPass + "{" + salt.ToString() + "}");
}
}
}