C# 实现计算MD5 32位大小写，16位大小写算法

1、引入命名空间

using System;

using System.Text;

using System.Windows.Forms;

using System.Security.Cryptography;

2、函数如下

public static string GetMd5Str_16D(string ConvertString)

//16位大写

{

MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();

string t2 = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(ConvertString)), 4, 8);

t2 = t2.Replace("-", "");

return t2;

}

public static string GetMd5Str_16X(string ConvertString)

//16位小写

{

MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();

string t2 = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(ConvertString)), 4, 8);

t2 = t2.Replace("-", "");

t2 = t2.ToLower();

return t2;

}

public string GetStrMd5_32D(string ConvertString)

//32位大写

{

MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();

string t2 = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(ConvertString)));

t2 = t2.Replace("-", "");

return t2;

}

public string GetStrMd5_32X(string ConvertString)

//32位小写

{

MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();

string t2 = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(ConvertString)));

t2 = t2.Replace("-", "");

return t2.ToLower();