摘自http://msdn.microsoft.com/zh-cn/library/system.security.cryptography.md5.aspx using System; using System.Security.Cryptography; using System.Text;class Example { // Hash an input string and return the hash as // a 32 character hexadecimal string. static string getMd5Hash(string input) { // Create a new instance of the MD5CryptoServiceProvider object. MD5 md5Hasher = MD5.Create(); // Convert the input string to a byte array and compute the hash. byte[] data = md5Hasher.ComputeHash(Encoding.Default.GetBytes(input)); // Create a new Stringbuilder to collect the bytes // and create a string. StringBuilder sBuilder = new StringBuilder(); // Loop through each byte of the hashed data // and format each one as a hexadecimal string. for (int i = 0; i < data.Length; i++) { sBuilder.Append(data[i].ToString("x2")); } // Return the hexadecimal string. return sBuilder.ToString(); } // Verify a hash against a string. static bool verifyMd5Hash(string input, string hash) { // Hash the input. string hashOfInput = getMd5Hash(input); // Create a StringComparer an comare the hashes. StringComparer comparer = StringComparer.OrdinalIgnoreCase; if (0 == comparer.Compare(hashOfInput, hash)) { return true; } else { return false; } } static void Main() { string source = "Hello World!"; string hash = getMd5Hash(source); Console.WriteLine("The MD5 hash of " + source + " is: " + hash + "."); Console.WriteLine("Verifying the hash..."); if (verifyMd5Hash(source, hash)) { Console.WriteLine("The hashes are the same."); } else { Console.WriteLine("The hashes are not same."); } } } // This code example produces the following output: // // The MD5 hash of Hello World! is: ed076287532e86365e841e92bfc50d8c. // Verifying the hash... // The hashes are the same.
跟ASP.NET中是一样的 MD5加密算法不分语言不分架构
//引用,一定要 using System.Web.Security; string MD5_Result= FormsAuthentication.HashPasswordForStoringInConfigFile( "password" , "MD5" );
using System;
using System.Security.Cryptography;
using System.Text;class Example
{
// Hash an input string and return the hash as
// a 32 character hexadecimal string.
static string getMd5Hash(string input)
{
// Create a new instance of the MD5CryptoServiceProvider object.
MD5 md5Hasher = MD5.Create(); // Convert the input string to a byte array and compute the hash.
byte[] data = md5Hasher.ComputeHash(Encoding.Default.GetBytes(input)); // Create a new Stringbuilder to collect the bytes
// and create a string.
StringBuilder sBuilder = new StringBuilder(); // Loop through each byte of the hashed data
// and format each one as a hexadecimal string.
for (int i = 0; i < data.Length; i++)
{
sBuilder.Append(data[i].ToString("x2"));
} // Return the hexadecimal string.
return sBuilder.ToString();
} // Verify a hash against a string.
static bool verifyMd5Hash(string input, string hash)
{
// Hash the input.
string hashOfInput = getMd5Hash(input); // Create a StringComparer an comare the hashes.
StringComparer comparer = StringComparer.OrdinalIgnoreCase; if (0 == comparer.Compare(hashOfInput, hash))
{
return true;
}
else
{
return false;
}
}
static void Main()
{
string source = "Hello World!"; string hash = getMd5Hash(source); Console.WriteLine("The MD5 hash of " + source + " is: " + hash + "."); Console.WriteLine("Verifying the hash..."); if (verifyMd5Hash(source, hash))
{
Console.WriteLine("The hashes are the same.");
}
else
{
Console.WriteLine("The hashes are not same.");
} }
}
// This code example produces the following output:
//
// The MD5 hash of Hello World! is: ed076287532e86365e841e92bfc50d8c.
// Verifying the hash...
// The hashes are the same.
//引用,一定要
using System.Web.Security;
string MD5_Result= FormsAuthentication.HashPasswordForStoringInConfigFile( "password" , "MD5" );