从字符串计算MD5哈希

本文介绍了从字符串计算MD5哈希的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我用下面的C＃code从字符串计算MD5哈希值。它运作良好，并产生一个32字符的十六进制字符串是这样的： 900150983cd24fb0d6963f7d28e17f72

字符串sSourceData;字节[] tmpSource;字节[] tmpHash;sSourceData =MySourceData;//创建一个从源数据的字节数组。tmpSource = ASCIIEncoding.ASCII.GetBytes（sSourceData）;tmpHash =新MD5CryptoServiceProvider（）ComputeHash（tmpSource）。//然后转换tmpHash串...

有没有办法使用code这样生成一个16字符的十六进制字符串（或12个字符的字符串）？ 32个字符的十六进制字符串是好的，但我认为这将是枯燥为客户输入code！

解决方案

//给出字符串中的密码字符串密码= @1234ABCD//字节数组再该字符串的presentation。字节[] EN codedPassword =新UTF8Encoding（）GetBytes会（密码）;//需要MD5计算哈希字节[]哈希=（（的HashAlgorithm）CryptoConfig.CreateFromName（MD5））ComputeHash（EN codedPassword）。//字符串重新presentation（类似于UNIX格式）字符串连接codeD = BitConverter.ToString（散）   //没有破折号   .Replace（ - ，的String.Empty）   //变为小写   。降低（）;// EN codeD中包含你想要的哈希

I use the following C# code to calculate a MD5 hash from a string. It works well and generates a 32-character hex string like this: 900150983cd24fb0d6963f7d28e17f72

string sSourceData; byte[] tmpSource; byte[] tmpHash; sSourceData = "MySourceData"; //Create a byte array from source data. tmpSource = ASCIIEncoding.ASCII.GetBytes(sSourceData); tmpHash = new MD5CryptoServiceProvider().ComputeHash(tmpSource); // and then convert tmpHash to string...

Is there any way to use code like this to generate a 16-character hex string (or 12-character string)? A 32-character hex string is good but I think it'll be boring for the customer to enter the code!

解决方案

// given, a password in a string string password = @"1234abcd"; // byte array representation of that string byte[] encodedPassword = new UTF8Encoding().GetBytes(password); // need MD5 to calculate the hash byte[] hash = ((HashAlgorithm) CryptoConfig.CreateFromName("MD5")).ComputeHash(encodedPassword); // string representation (similar to UNIX format) string encoded = BitConverter.ToString(hash) // without dashes .Replace("-", string.Empty) // make lowercase .ToLower(); // encoded contains the hash you are wanting