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Is SHA-1 secure for password storage?
... that cost N once and can thereafter attack many passwords with very small extra cost per password.
If the pre-computed table is a rainbow table, then N can be somewhat bigger, because storage cost is reduced. The bottleneck on N becomes the CPU power that the attacker can muster, not the size of hi...
Rails respond_with: how does it work?
...tion => posts_path)
# Note that if you want to pass a URL with a query string
# then the location option would be needed.
# /users?scope=active
respond_with(@user, :location => users_path(:scope => 'active'))
As an alternative, the responders gem not only provides some modules for over...
When exactly are onSaveInstanceState() and onRestoreInstanceState() called?
...
String activityState;
@Override
public void onCreate(Bundle savedInstanceState) {
// call the super class onCreate to complete the creation of activity like
// the view hierarchy
super.onCreate(savedInstanceState);
// rec...
How to slice an array in Bash
... defaults to
zero, an omitted second index defaults to the size of the string being
sliced.
>>> local a=(0 1 2 3 4 5)
>>> # from the beginning to position 2 (excluded)
>>> echo $(array.slice 0:2 "${a[@]}")
>>> echo $(array.slice :2 "${a[@]}...
Why are margin/padding percentages in CSS always calculated against width?
...
I suppose that it would be nice to have an extra element in the syntax so that you could write say padding: n [type]. So you would have padding: 5% logical (what the OP suggests) as opposed to padding: 5% width with the second parameter defaulting to "width" for backw...
How to use Python to login to a webpage and retrieve cookies for later usage?
... Is 'action': 'login' actually necessary in this example, or is it just an extra parameter that's sent with the request?
– Ted
Jun 26 '14 at 16:08
1
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jQuery: $().click(fn) vs. $().bind('click',fn);
... calls on('click'). The way I see it, you might as well save yourself that extra function call by using on('click') directly.
– Nix
Mar 15 '12 at 13:58
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C#: Difference between List and Collection (CA1002, Do not expose generic lists) [duplicate]
...lity in mind it's very flexible. If in the future you decide you need some extra feature in the collection you can just extend it without any change to the public interface of the class. If you had used a list, you would have had to change it to a collection which means it would have broken all of t...
Create boolean column in MySQL with false as default value?
... for true / false it gives and accepts the true / false values without any extra code.
ALTER TABLE `itemcategory` ADD `aaa` ENUM('false', 'true') NOT NULL DEFAULT 'false'
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Git: can't undo local changes (error: path … is unmerged)
.../bar.txt <br/> $ git checkout -- foo/bar.txt <br/> (Notice the extra "--" in between)
– Jan
Aug 9 '11 at 17:37
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