encrypt and decrypt md5

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  c4ca4238a0b923820dcc

User · Answer

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    input    SmackFactory     encrypted   encryptIt   input     decrypted   decryptIt   encrypted     echo  encrypted     lt br   gt      decrypted   function encryptIt   q          cryptKey     qJB0rGtIn5UB1xG03efyCp        qEncoded        base64 encode  mcrypt encrypt  MCRYPT RIJNDAEL 256  md5   cryptKey     q  MCRYPT MODE CBC  md5  md5   cryptKey              return   qEncoded       function decryptIt   q          cryptKey     qJB0rGtIn5UB1xG03efyCp        qDecoded        rtrim  mcrypt decrypt  MCRYPT RIJNDAEL 256  md5   cryptKey    base64 decode   q    MCRYPT MODE CBC  md5  md5   cryptKey          0        return   qDecoded        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

User · Answer

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    string    c4ca4238a0b923820dcc    encrypted    Illuminate Support Facades Crypt  encrypt  string    decrypted string    Illuminate Support Facades Crypt  decrypt  encrypted    var dump  string   var dump  encrypted   var dump  decrypted string        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   To store password in database  make hash of password and then save    password   Input  get  password from user      hashed   Hash  make  password      save  hashed value   To verify password  get password stored of account from database      user is database object     inputs is Input from user if   Illuminate Support Facades Hash  check   inputs  password     user  password       false         Password is not matching    else        Password is matching

User · Answer

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 -   crypt  String     2a 07 twentytwocharactersalt         password hash will be introduced in PHP 5 5    options          cost    gt  7       salt    gt   BCryptRequires22Chrcts      password hash  rasmuslerdorf   PASSWORD BCRYPT   options     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

User · Answer

you  can match the exact string with table value    if md5  string to match       res  hashstring     echo  login correct

User · Answer

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 decrypt  JavaScript AES encryption and decryption  Advanced Encryption Standard

User · Answer

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

[php] encrypt and decrypt md5

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