Password Encryption using MD5 Hash Algorithm in C#

This tutorial will show you how easy to implement MD5 hash algorithm using .NET Cryptography Framework in C# to encrypt a string or password.

The code below will help you hash an input string and return the hash as a 32 character hexadecimal string.

You can use the MD5CryptoServiceProvider class to implement compute the MD5 hash value for the input data.

public static string Md5(string input)
{
    // Create a new instance of the MD5CryptoServiceProvider object.
    MD5 md5 = MD5.Create(); 
    // Convert the input string to a byte array and compute the hash.
    byte[] data = md5.ComputeHash(Encoding.UTF8.GetBytes(input)); 
    // Create a new Stringbuilder to collect the bytes and create a string.
    StringBuilder sb = 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++)
       sb.Append(data[i].ToString("x2"));
    return sb.ToString();
}

Remember you can't decrypt MD5 hashes