This site allows you to encrypt or decrypt any md5 hash, we have our own database with more than 10 million keys, also we look for your hash on 23+ others web sites. On this section you can also create a new md5 hash base on any text or just apply another algorithm to. Mar 4, 2013 - As already stated, you cannot decrypt MD5 without attempting something like brute force hacking which is extremely resource intensive, not.
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
Is there a 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!
Jonas3,06722 gold badges1717 silver badges2424 bronze badges
user1422847user142284772811 gold badge77 silver badges2323 bronze badges
13 Answers
Anant DabhiAnant Dabhi11k44 gold badges3030 silver badges5252 bronze badges
MichaelMichael3,36111 gold badge1414 silver badges1616 bronze badges
Depends entirely on what you are trying to achieve. Technically, you could just take the first 12 characters from the result of the MD5 hash, but the specification of MD5 is to generate a 32 char one.
Reducing the size of the hash reduces the security, and increases the chance of collisions and the system being broken.
Perhaps if you let us know more about what you are trying to achieve we may be able to assist more.
KingCronusKingCronus3,95911 gold badge1818 silver badges4444 bronze badges
You can use
L.BL.BConvert.ToBase64String
to convert 16 byte output of MD5 to a ~24 char string. A little bit better without reducing security. (j9JIbSY8HuT89/pwdC8jlw
for your example)96.1k1414 gold badges145145 silver badges185185 bronze badges
Was trying to create a string representation of MD5 hash using LINQ, however, none of the answers were LINQ solutions, therefore adding this to the smorgasbord of available solutions.
craigdfrenchcraigdfrench
Think BigThink Big
A MD5 hash is 128 bits, so you can't represent it in hex with less than 32 characters...
Thomas LevesqueThomas Levesque241k5656 gold badges514514 silver badges687687 bronze badges
I suppose it is better to use UTF-8 encoding in the string MD5.
![Md5 Md5](/uploads/1/2/4/8/124887408/610700988.jpg)
13.3k1313 gold badges7575 silver badges112112 bronze badges
Kristian JayKristian Jay
Suhrob SamievSuhrob Samiev79311 gold badge1818 silver badges5151 bronze badges
This solution requires c# 7.2 and takes advantage of
Brad MBrad MSpan<T>
. Regardless of the input size, this allocates a fixed amount of memory and is faster than the accepted answer. Note, you would still need to call .Replace('-', string.Empty).ToLowerInvariant()
to format the result if necessary.7,18511 gold badge1616 silver badges3333 bronze badges
KhaledDevKhaledDev
A faster alternative of existing answer for .NET Core 2.1 and higher:
You can optimize it even more if you are sure that your strings are small enough and replace encoding.GetBytes by unsafe int GetBytes(ReadOnlySpan chars, Span bytes) alternative.
Tomas KubesTomas Kubes13.3k1313 gold badges7575 silver badges112112 bronze badges
Not the answer you're looking for? Browse other questions tagged c#md5 or ask your own question.
I am using code
$enrypt=md5($pass)
and inserting $encrypt
to database. I want to find out a way to decrypt them. I tried using a decrypting software but it says the hash should be of exactly 16 bytes. is there any way to decrypt it or to make it a 16 byte md5 hash?My hash looks like this:
Gottlieb Notschnabelc4ca4238a0b923820dcc
5,1471616 gold badges5757 silver badges9898 bronze badges
TomerTomer
6 Answers
As already stated, you cannot decrypt MD5 without attempting something like brute force hacking which is extremely resource intensive, not practical, and unethical.
However you could use something like this to encrypt / decrypt passwords/etc safely:
Using a encypted method with a salt would be even safer, but this would be a good next step past just using a MD5 hash.
BIT CHEETAHBIT CHEETAH1,02011 gold badge77 silver badges99 bronze badges
There is no way to decrypt MD5. Well, there is, but no reasonable way to do it. That's kind of the point.
To check if someone is entering the correct password, you need to MD5 whatever the user entered, and see if it matches what you have in the database.
Niet the Dark AbsolNiet the Dark Absol264k5757 gold badges377377 silver badges483483 bronze badges
dcaswell2,74722 gold badges1919 silver badges2424 bronze badges
Mahesan RvMahesan Rv
This question is tagged with PHP. But many people are using Laravel framework now. It might help somebody in future. That's why I answering for Laravel. It's more easy to encrypt and decrypt with internal functions.
Note: Be sure to set a 16, 24, or 32 character random string in the key option of the config/app.php file. Otherwise, encrypted values will not be secure.
But you should not use encrypt and decrypt for authentication. Rather you should use hash make and check.
Somnath MulukSomnath Muluk36k1717 gold badges188188 silver badges209209 bronze badges
Hashes can not be decrypted check this out.
If you want to encrypt-decrypt, use a two way encryption function of your database like - AES_ENCRYPT (in MySQL).
But I'll suggest CRYPT_BLOWFISH algorithm for storing password. Read this- http://php.net/manual/en/function.crypt.php and http://us2.php.net/manual/en/function.password-hash.php
For Blowfish by
crypt()
function - password_hash
will be introduced in PHP 5.5.Once you have stored the password, you can then check if the user has entered correct password by hashing it again and comparing it with the stored value.
![Giai Ma Md5 Giai Ma Md5](/uploads/1/2/4/8/124887408/187562101.jpg)
4,11344 gold badges2525 silver badges4343 bronze badges
It's not possible to decrypt
MD5
hash which created. You need all information to decrypt the MD5
value which was used during encryption.You can use
AES
algorithm to encrypt and decryptMayur SMayur S
protected by Community♦Feb 12 '14 at 20:38
Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).
Would you like to answer one of these unanswered questions instead?
Would you like to answer one of these unanswered questions instead?