大约有 7,100 项符合查询结果(耗时:0.0293秒) [XML]

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Secure hash and salt for PHP passwords

...mix bcrypt and with the raw output of hash(), either use hex output or base64_encode it. (This applies to any input that may have a rogue \0 in it, which can seriously weaken security.) Dos Use scrypt when you can; bcrypt if you cannot. Use PBKDF2 if you cannot use either bcrypt or scrypt, with ...
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Releasing memory in Python

...ain, if you're talking about sending over 2K of arguments and getting back 64K of results, you won't even notice it, but if you're sending and receiving large amounts of data, you'll want to use some other mechanism (a file, mmapped or otherwise; the shared-memory APIs in multiprocessing; etc.). Sen...
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Optimise PostgreSQL for fast testing

...raig Ringer 242k5353 gold badges539539 silver badges643643 bronze badges 10 ...
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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?

...fferent every time). But the tree referenced by that commit will be 4b825dc642cb6eb9a060e54bf8d69288fbee4904, the empty tree SHA1. git log --pretty=raw commit 9ed4ff9ac204f20f826ddacc3f85ef7186d6cc14 tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904 <==== author VonC <vonc@laposte.net> 1...
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Making custom right-click context menus for my web-app

... 64 As Adrian said, the plugins are going to work the same way. There are three basic parts you're...
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xkcd style graphs in MATLAB

... 64 The first step... find a system font you like (use the function listfonts to see what's availab...
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“Keep Me Logged In” - the best approach

... "user" => $user, "token" => $this->getRand(64), "signature" => null ]; $cookie['signature'] = $this->hash($cookie['user'] . $cookie['token']); $encoded = json_encode($cookie); // Add User to database $this...
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How is the fork/join framework better than a thread pool?

...r-threading), Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz) the fib(50) takes 64 seconds with the classic approach and just 18 seconds with the Fork/Join approach which is quite a noticeable gain, although not as much as theoretically possible. Summary Yes, in your example Fork/Join has no advantage...
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How to generate a random number in C++?

...r_engine<> (and its convenience typedefs - std::mt19937/std::mt19937_64 with good template parameters combination) provides per-object pseudo-random number generator defined in C++11 standard. With the same template parameters and the same initialization parameters different objects will gener...
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Why is it common to put CSRF prevention tokens in cookies?

... 64 Using a cookie to provide the CSRF token to the client does not allow a successful attack becau...