MD5

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m (Javascript version)
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}
 
}
 
</csharp>
 
</csharp>
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== JavaScript ==
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... and just in case anyone was wonering. This is also possible using JavaScript:
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<javascript>
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import System;
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import System.Text;
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import System.Security.Cryptography;
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static function Md5Sum(strToEncrypt)
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{
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var encoding = UTF8Encoding();
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var bytes = encoding.GetBytes(strToEncrypt);
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// encrypt bytes
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var md5 = MD5CryptoServiceProvider();
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var hashBytes = md5.ComputeHash(bytes);
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// Convert the encrypted bytes back to a string (base 16)
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var hashString = "";
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for (int i = 0; i < hashBytes.Length; i++)
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{
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hashString += Convert.ToString(hashBytes[i], 16).PadLeft(2, '0');
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}
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return hashString.PadLeft(32, '0');
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}</javascript>
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You can use SHA1CryptoServiceProvider instead of MD5CryptoServiceProvider if you want to create SHA1 hashes instead of MD5 hashes.

Revision as of 06:51, 18 May 2007

Author: Matthew Wegner

Overview

This C# code snippet generates an MD5 hash for an input string. The formatting will match the output of PHP's md5() function.

Code

Best placed in your static-only utility class.

<csharp> public string Md5Sum(string strToEncrypt) { System.Text.UTF8Encoding ue = new System.Text.UTF8Encoding(); byte[] bytes = ue.GetBytes(strToEncrypt);

// encrypt bytes System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider(); byte[] hashBytes = md5.ComputeHash(bytes);

// Convert the encrypted bytes back to a string (base 16) string hashString = "";

for (int i = 0; i < hashBytes.Length; i++) { hashString += System.Convert.ToString(hashBytes[i], 16).PadLeft(2, '0'); }

return hashString.PadLeft(32, '0'); } </csharp>

JavaScript

... and just in case anyone was wonering. This is also possible using JavaScript:

<javascript> import System; import System.Text; import System.Security.Cryptography;

static function Md5Sum(strToEncrypt) { var encoding = UTF8Encoding(); var bytes = encoding.GetBytes(strToEncrypt);

// encrypt bytes var md5 = MD5CryptoServiceProvider(); var hashBytes = md5.ComputeHash(bytes);

// Convert the encrypted bytes back to a string (base 16) var hashString = "";

for (int i = 0; i < hashBytes.Length; i++) { hashString += Convert.ToString(hashBytes[i], 16).PadLeft(2, '0'); }

return hashString.PadLeft(32, '0'); }</javascript>

You can use SHA1CryptoServiceProvider instead of MD5CryptoServiceProvider if you want to create SHA1 hashes instead of MD5 hashes.

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