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18 Commits

Author SHA1 Message Date
Victor Stinner fe02e39029 Issue #22585: On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(), 
instead of reading /dev/urandom, to get pseudo-random bytes.
 2014-12-21 01:16:38 +01:00
Serhiy Storchaka 56a6d855e2 Removed duplicated words in in comments and docs. 2014-12-01 18:28:43 +02:00
Antoine Pitrou e472aeafc3 Issue #21207: Detect when the os.urandom cached fd has been closed or replaced, and open it anew. 2014-04-26 14:33:03 +02:00
Christian Heimes af01f66817 Issue #16136: Remove VMS support and VMS-related code 2013-12-21 16:19:10 +01:00
Christian Heimes 985ecdcfc2 ssue #19183: Implement PEP 456 'secure and interchangeable hash algorithm'. 
Python now uses SipHash24 on all major platforms.
 2013-11-20 11:46:18 +01:00
Victor Stinner 0c083461a5 Fix compiler warning in win32_urandom(): explicit cast to DWORD in 
CryptGenRandom()
 2013-11-15 23:26:25 +01:00
Georg Brandl af1edb7f45 merge with 3.3 2013-10-06 18:48:30 +02:00
Georg Brandl c6a2c9b466 Closes #15213: update comment for _PyOS_URandom 2013-10-06 18:43:19 +02:00
Antoine Pitrou 4879a963d4 Issue #18756: os.urandom() now uses a lazily-opened persistent file descriptor, so as to avoid using many file descriptors when run in parallel from multiple threads. 2013-08-31 00:26:02 +02:00
Victor Stinner daf455554b Issue #18571: Implementation of the PEP 446: file descriptors and file handles 
are now created non-inheritable; add functions os.get/set_inheritable(),
os.get/set_handle_inheritable() and socket.socket.get/set_inheritable().
 2013-08-28 00:53:59 +02:00
Antoine Pitrou 95b21460ee Issue #18756: Improve error reporting in os.urandom() when the failure is due to something else than /dev/urandom not existing. 2013-08-16 20:49:32 +02:00
Antoine Pitrou ec34ab5010 Issue #18756: Improve error reporting in os.urandom() when the failure is due to something else than /dev/urandom not existing. 2013-08-16 20:44:38 +02:00
Martin v. Löwis 3f50bf652b Drop support for Windows 2000; allow any XP API (but not Vista+). 
Drop SDK version configuration for Tk compilation, to not bind it to W2k
anymore. Binding it to XP would conflict with Tk's own binding of tkMenu to W2k.
 2013-01-25 14:06:18 +01:00
Antoine Pitrou 380c55cc58 Issue #15340: Fix importing the random module when /dev/urandom cannot be opened. 
This was a regression caused by the hash randomization patch.
 2012-09-07 23:49:07 +02:00
Benjamin Peterson c9f54cf512 enable hash randomization by default 2012-02-21 16:08:05 -05:00
Benjamin Peterson 69e9727657 ensure no one tries to hash things before the random seed is found 2012-02-21 11:08:50 -05:00
Georg Brandl 12897d7d39 Fix typo in conditional. 2012-02-20 23:49:29 +01:00
Georg Brandl 2daf6ae249 Issue #13703: add a way to randomize the hash values of basic types (str, bytes, datetime) 
in order to make algorithmic complexity attacks on (e.g.) web apps much more complicated.

The environment variable PYTHONHASHSEED and the new command line flag -R control this
behavior.
 2012-02-20 19:54:16 +01:00