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Is “double hashing” a password less secure than just hashing it once?

...o compute a hash for each password and see if it matches the stored hash. All passwords are not equally likely. Attackers might exhaustively search all short passwords, but they know that their chances for brute-force success drop sharply with each additional character. Instead, they use an ordered...
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How to read a large file line by line?

...e line from the file. echo $file->fgets(); } // Unset the file to call __destruct(), closing the file handle. $file = null; share | improve this answer | follow ...
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Using OR in SQLAlchemy

... From the tutorial: from sqlalchemy import or_ filter(or_(User.name == 'ed', User.name == 'wendy')) share | improve this answer | follow ...
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Extract value of attribute node via XPath

... With xqilla it was necessary to call xs:string. I wonder why. – krlmlr Jul 22 '13 at 20:00 1 ...
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An example of how to use getopts in bash

I want to call myscript file in this way: 7 Answers 7 ...
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In Django, how does one filter a QuerySet with dynamic field lookups?

...a custom ModelField/FormField/WidgetField that implemented the behavior to allow the user to, on the GUI side, basically "build" a query, never seeing the actual text, but using an interface to do so. Sounds like a neat project... – T. Stone Sep 23 '09 at 20:2...
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Eclipse executable launcher error: Unable to locate companion shared library

I had Eclipse Indigo installed on my computer with the Android plugin and it was working perfectly for about two weeks. Today, I updated java and quicktime then restarted my computer. When it booted back up, eclipse had completely vanished - all the program files have completely disappeared. When I ...
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Should a return statement be inside or outside a lock?

...als init ( [0] int32 CS$1$0000, [1] object CS$2$0001) L_0000: ldsfld object Program::sync L_0005: dup L_0006: stloc.1 L_0007: call void [mscorlib]System.Threading.Monitor::Enter(object) L_000c: call int32 Program::GetValue() L_0011: stloc.0 L_0012: leav...
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How to run code when a class is subclassed? [duplicate]

...- Watcher subclasses type, not object. 2 - SuperClass has no superclass at all, not object. I'm just so used to writing down object as a superclass for every class I defined that I somehow missed it that this code was using something else. Although there doesn't seem to be any harm in making SuperCl...
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UITableView load more when scrolling to bottom like Facebook application

...thIdentifier:cellIdentifier]; if (!cell) { cell = [[MyCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:MainMenuCellIdentifier]; } MyData *data = [self.dataArray objectAtIndex:indexPath.row]; // Do your cell customisation // cell.titleLabel.text =...