Doc #54299 [NEW]: Error in a comment about salt generation (crypto)

From: Date: Fri, 18 Mar 2011 03:56:17 +0000
Subject: Doc #54299 [NEW]: Error in a comment about salt generation (crypto)
Groups: php.doc.bugs 
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From: Operating system: PHP version: Irrelevant Package: Documentation problem Bug Type: Documentation Problem Bug description:Error in a comment about salt generation (crypto) Description: ------------ The comment by "thegreatall at gmail dot com" on the manual page for mt_rand() describes a method for quickly generating a pseudo-random salt for password hashes. One of the constants given in the example is incorrect and can lead a smaller range from which the random numbers will be selected. The line - base_convert(mt_rand(0x1679616, 0x39AA3FF, 10, 36); - should be changed to either - base_convert(mt_rand(1679616, 0x39AA3FF, 10, 36); - or, if we want to keep the hex format, to - base_convert(mt_rand(0x19A100, 0x39AA3FF, 10, 36); Rationale: the number 0x19A100 (= 1679616 in decimal) will be represented as 10000 in base-36, which is the intended value, whereas the given number 0x1679616 will be represented as e13iu in base-36. Comment ID: 102318 Link: http://php.net/manual/en/function.mt-rand.php#102318 -- Edit bug report at http://bugs.php.net/bug.php?id=54299&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54299&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54299&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54299&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=54299&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54299&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=54299&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=54299&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=54299&r=needscript Try newer version: http://bugs.php.net/fix.php?id=54299&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=54299&r=support Expected behavior: http://bugs.php.net/fix.php?id=54299&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=54299&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=54299&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=54299&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54299&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=54299&r=dst IIS Stability: http://bugs.php.net/fix.php?id=54299&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=54299&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=54299&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=54299&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=54299&r=mysqlcfg

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