php - How secure is my hashing algorithm? -

-

I am writing a website for personal use (I hope, but do not think anyone will ever come there) , And its development follows the following algorithms: 

  function encrypt password ($ user name, $ password) {$ username = md5 ($ username); $ Password = md5 ($ password); $ Newpass = substr ($ username, 0, 5). $ Password substr ($ username, 5); $ Newpass = MD5 ($ Newpass); Return $ newpass; }   
 Since it's still a type of 'password and you're like' (though in general), I think it would be a better idea to hide the password database In.  
 I have used the simple MD5x1 algorithm (originally: MD5 (pass) and previously) but then people who access the database can easily change the hash. In this way I do not think you want to change this thing.   
 
 
 Not so. / p> 
     
  1.  MD5 is cryptographicly weak.  
  2.  Salt should be random, should not be obtained by known values.  
  3.  One round of palm is trivial to break these days.   
     The solution given above:  
       
    1.  Use better algorithms, preferably SHA2 or better.  
    2.  Generate random salts.  
    3.  hash several rounds   
       Oh wait, an entire library has already been created in PHP, it's better than  method  , And if you are using version 5.5 of PHP, it was implemented, which backported it back as 5.3.7, and if  that  still does not work So you actually update your PHP installation.  
       Lastly, unless you have a college level education in cryptography, then you should never try to 'roll your own' rolling or encryption schemes. 99% of the time you will end up with the least safe system, if you use some industry-standard.

Comments

Post a Comment

Popular posts from this blog

php - PDO bindParam() fatal error -

-
I am trying to learn PDO, now I have written this small code, but it gives me a serious error: < P> Fatal error: Call a member function at a non-object dot () ... $ con = new mysqli ("127.0.0.1", "root", "", "csvdangercheck"); $ Query = $ con- & gt; ("Id,` var1`, `var2`) values ​​(" id,: var1,: var2) ";); $ query- & gt; bypass pattern (': id', $ id); $ query- & gt; BindParam (': var1', $ VAL1); $ Query- & gt; bindParam (': var2', $ val2); $ Query-> Executed (); I Trying to use print_r ($ con-> errorInfo ()) but Fatal error: Undefined method mysqli :: errorInfo ( ) ... can someone tell me what am I missing? Flaffeh said, you have PDO Missing Mysqy, try it: $ con = new PDO ('mysql: host = 127.0.0.1; dbname = csvdangercheck', 'root', '');
Read more

logging - How can I log both the Request.InputStream and Response.OutputStream traffic in my ASP.NET MVC3 Application for specific Actions? -

-
For a specific set of tasks, I need to log in to the incoming request inputstream as well as outgoing response. is. I am using an ActionFilterAttribute for this and overriding the OnActionExecuted and OnResultExecuted methods. So I'm starting with this idea ... Public category ActionLoggerAttribute: ActionFilterArrbit {Public Override Zero On-Offed Execution (ActionActioned Contact Filter Filter) {base.OnActionAxecuted (FilterContext); HttpRequestBase request = filterContext.HttpContext.Request; // TODO: Log the request. InputStream} Public Override Zero OnResultExecuted (ResultExecutedContext FilterContext) {base.OnResultExecuted (filterContext); HTTPRPSPointBase Response = FilterContacts Hpptex response; // TODO: Log on Response.OutputStream}} Ideally I'll hook it up with enterprise library logging because I'm already using it for error logging. Am I reaching the input and output stream at the right time? Can I easily use the Enterprise Library to log i
Read more

java - Why my included JSP file won't get processed correctly? -

-
I am trying to create Java web framework (and learning), and on the basis of 'Code Generator In the process of making the material view of the database in the process of development, I stumbled into a difficulty, which I do not know how to solve it. First of all, I want the following index.jsp : & lt; Body & gt; Use all pages to be created. & Lt;% @ include file = "header.jsp"% & gt; & Lt; Hours / & gt; & Lt;% @ included file = "body.jsp"%> & Lt; Hours / & gt; & Lt;% @ include file = "footer.jsp"% & gt; & Lt; / Body & gt; And, in body.jsp , I should have it like this: & lt; Jsp: include page = "$ {Application_modul}"%> Where application_modul is an attribute defined in its controller: request.setAttribute ("application_modul", "USER_ACCOUNT \\ ' View_user_account.jsp "); This file can be found properly, but the processed JSP does
Read more