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Published on 2010-04-09T13:07:34Z
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what is the modern way of obfuscating passwords that are stored in databases?
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I have an instance of dict with ints, floats, strings as keys, but the problem is when there are a as int and b as float, and float(a) == b, then their hash values are the same, and thats what I do NOT want to get because I need unique hash vales for this cases in order to get corresponding values…
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What property makes Hash table, Hash list and Hash tree different from each other? Which one is used when? When is table superior than tree.
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Hi, I would like to construct a hash table that looks up keys in sequences (strings) of bytes ranging from 1 to 15 bytes.
I would like to store an integer value, so I imagine an array for hashing would suffice. I'm having difficulty conceptualizing how to construct a hash function such that given…
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Theoretically does hashing a unique value yield a unique value?
Let's say I have a DB table with 2 columns: id and code. id is an auto-incrementing int and code is a varchar. If I do ...
$code = sha1($id);
... and then store $code into the same row as $id. Will my code column be unique as well…
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I attempted to install the perl module Net::Twitter::Role::API::Lists using WHM and after doing so my whole site came down. It seems that something that was updated with the install isn't functioning correctly and since our website it written in Perl none of our site scripts will run.
In almost 8…
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It appears that Word's password protection is not really good, at least until Office 2003, if I read this SU entry correctly. I'm under the impression that Acrobat's PDF password protection should be better (it says 128-bit AES for Acrobat 7 and higher). Is that true?
Of course, it depends on the…
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This has always been a problem for me for a long time. Let's see if any SuperUser can solve this:
I have a directory in which there are lots of password protected .RAR files of which I know the passwords. I want to remove the password protection from all of them without extracting the contents…
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Hi,
I have a password protected MS-Word 2007 file that needs to stay private. How good is Word's protection? If it's not very good, can you suggest a better method for keeping the file protected?
EDIT: my goal is to send the protected file to a recipient (who knows the password). I assume this recipient…
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How do I use the sha512 function for PHP?
Can I replace all my md5 funtions with the sha512 function?
Do I have to download something if so what?
Can any one provide examples? Thanks!
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Hello,
I migrated my application to a new server (from a VPS to a dedicated) yesterday and the password protection which was working correctly on the previous server (using .htaccess file - asking username/pass) doesn't work anymore : anyone can access the website without being asked to enter a username…
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