data-retrieval

I just learned the concept of hashing ("Hey! don't forget the salt!") and using salt to make the password secured. Hashing it is a one way encryption (actually not encryption but hashing) so it cannot be reversed engineered. Salting is prefixing or appending randomly created values to the password before hashing 'coz the problem in hashing (just hashing) is, some genius has provided a hash table of words from the dictionary so that they'll just compare the hash from that dictionary to the user's table from the database to login - W-wait? did I say table from the database? So it means somebody

I've got a 16GB memory card off someone that won't load properly (asks to be reformatted). I'm trying to get jpegs off it. I've run dd to dump the contents to a file, which worked splendidly. The file won't mount and be read, so the contents are corrupt in someway. Opening the dump in a hex editor shows that there is data on there, and by looking for the markers for the start and end of a jpeg (FFD8 and FFD9), I've been able to manually extract the first 3 jpegs. Before I go and write some code to stream the file, find the offsets and dump the files, is there any existing way to do this? I can

I've read that it's important to keep data flatter for Firebase and to also only nest data that you intend to call. I've done those things, but Firebase is still too slow at retrieving data. Here's an example: My data looks like this: --English ----Ari : 4 ----Philip : 2 ----John : 6 And my code looks like this: [super viewDidLoad]; [[DataSource sharedInstance].selectedLanguageMutableArray removeAllObjects]; //Retrieving Data From Firebase NSString* selectedLanguagePath = [NSString stringWithFormat:@"languages/%@", [DataSource sharedInstance].languageSelected]; Firebase *languagesRef = [

I have this problem about retrieving row data in jQuery. this is not really a simple problem for me since my table cells contains a select tag, and a input box. To be clear enough, here's my html code of my table: <tr> <td> <select style="width:5em;" class="field"> <option></option> <option>name</option> <option>age</option> <option>sex</option> </select> </td> <td> <select style="width:5em;" class = "comp"> <option></option> <option>equals</option> <option>starts with</option> <option>not equal to</option> </select> </td> <td><input type="text" class = 'value'></td> </tr> <tr> <td> <select

I want to download a file from a URL, this one : http://download.finance.yahoo/d/quotes.csv?s=YHOO+GOOG+MSFT&f=sl1d1t1c1hgvbap2 When i go on my browser and input this URL in my browser, the file is automatically downloaded as it should. What I want is to download this file without going on my browser using a program in C language, I need this type of information for a financial project. I tried to download the file using libcurl but libcurl downloads the HTML page corresponding to this URL which is empty of course because the only thing this URL does is start a download. I suppose this URL is

I'm trying to compile a list of information that is accessible via javascript such as: Geo-location IP address Browser software Exit location Entrance location I understand that a user can alter any of this information and that it's reliability is purely trust related, but I am still interested in what other information can be mined from the client. Don't forget about Screen Size Allowed Cookies Allowed Java Mobile or Desktop Language And here is useful link with data-mining demo: http://javascriptsource.com/user-details/browser-properties.html Here is most of the information: var info={