How to decode MD5 string

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I am using this code to make a encrypted password.I want to decode the generated string to its original.

C#

public string CreateHash(string password, string salt)
   {
       // Get a byte array containing the combined password + salt.
       string authDetails = password + salt;
       byte[] authBytes = System.Text.Encoding.ASCII.GetBytes(authDetails);
       // Use MD5 to compute the hash of the byte array, and return the hash as
       // a Base64-encoded string.
       var md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
       byte[] hashedBytes = md5.ComputeHash(authBytes);
       string hash = Convert.ToBase64String(hashedBytes);
       return hash;
   }

Posted 28-May-13 2:00am

Tirthankar Dutta

Updated 3-May-18 17:07pm

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[no name] 28-May-13 8:04am

MD5 is a hash, so you can't get the original back.

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tumbledDown2earth · Answer 1 · 2013-05-28T02:04:00

Solution 1

MD5 hashes can not be "decrypted", thats the whole point of MD5.
At max, you can try to look them up in a rainbow table.

Here are some sites that support this:
http://tools.benramsey.com/md5/

Posted 28-May-13 2:04am

tumbledDown2earth

Comments

Maciej Los 28-May-13 8:05am

Good answer! +5!
At the same time as mine ;)

Maciej Los · Answer 2 · 2013-05-28T02:04:00

Solution 2

It's not possible MD5 algorithm is known as one-way hashing function. Please, see this: http://en.wikipedia.org/wiki/MD5[^]

Posted 28-May-13 2:04am

Maciej Los

Comments

RelicV 28-May-13 8:08am

You could decrypt the value though using the below link, though I've not personally used it.

http://www.md5decrypt.org/

kk2014 · Answer 3 · 2013-05-28T02:08:00

Hi,

MD5 is a one way algorithm. it is encrypted but can't be decrypted.

still i have a code to decrypt the string.

public string DecryptPassowrd(object obj)
    {
        string password = obj.ToString();

        System.Text.UTF8Encoding encoder = new System.Text.UTF8Encoding();

        System.Text.Decoder utf8Decode = encoder.GetDecoder();

        byte[] todecode_byte = Convert.FromBase64String(password.Replace("","+"));

        int charCount = utf8Decode.GetCharCount(todecode_byte, 0, todecode_byte.Length);

        char[] decoded_char = new char[charCount];

        utf8Decode.GetChars(todecode_byte, 0, todecode_byte.Length, decoded_char, 0);

        string result = new String(decoded_char);

        return result;

    }

Let me know if it works for you or not?

Mark if it works for you.

thanks.

How to decode MD5 string

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