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„ ƒ YZ d S( s $Id$iÿÿÿÿNi i i ( t *( t b2a_hex( t ClockRewindWarningt FortunaPoolc B sD e Z d Z e j Z d „ Z d „ Z d „ Z d „ Z d „ Z RS( sg Fortuna pool type
This object acts like a hash object, with the following differences:
- It keeps a count (the .length attribute) of the number of bytes that
have been added to the pool
- It supports a .reset() method for in-place reinitialization
- The method to add bytes to the pool is .append(), not .update().
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| j j ƒ S( N( R t digest( R ( ( sL /usr/lib/python2.7/dist-packages/Crypto/Random/Fortuna/FortunaAccumulator.pyR
= s c C s= t j d d k r# t | j ƒ ƒ St | j ƒ ƒ j ƒ Sd S( Ni i ( t syst version_infoR R
t decode( R ( ( sL /usr/lib/python2.7/dist-packages/Crypto/Random/Fortuna/FortunaAccumulator.pyt hexdigest@ s c C s t j ƒ | _ d | _ d S( Ni ( t SHAd256t newR R ( R ( ( sL /usr/lib/python2.7/dist-packages/Crypto/Random/Fortuna/FortunaAccumulator.pyR F s (
t __name__t
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R R ( ( ( sL /usr/lib/python2.7/dist-packages/Crypto/Random/Fortuna/FortunaAccumulator.pyR ) s c C sh | d k s t ‚ g } d } xC t d ƒ D]5 } | | @d k rQ | j | ƒ n P| d >d B} q+ W| S( s? Return a list of pools indexes (in range(32)) that are to be included during reseed number r.
According to _Practical Cryptography_, chapter 10.5.2 "Pools":
"Pool P_i is included if 2**i is a divisor of r. Thus P_0 is used
every reseed, P_1 every other reseed, P_2 every fourth reseed, etc."
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t reseed_countt FortunaGeneratort AESGeneratort generatort Nonet last_reseedR R t poolsR ( R R ( ( sL /usr/lib/python2.7/dist-packages/Crypto/Random/Fortuna/FortunaAccumulator.pyR d s
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t timeR% R$ t warningst warnR R& R t
min_pool_sizet reseed_intervalt _reseedR# t pseudo_random_data( R t bytest current_time( ( sL /usr/lib/python2.7/dist-packages/Crypto/Random/Fortuna/FortunaAccumulator.pyt random_datap s c C s§ | d k r t j ƒ } n g } | j d 7_ | | _ xB t | j ƒ D]1 } | j | j | j ƒ ƒ | j | j ƒ qI Wt d ƒ j
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R t bt joinR# t reseed( R R/ t seedR ( ( sL /usr/lib/python2.7/dist-packages/Crypto/Random/Fortuna/FortunaAccumulator.pyR, | s c C s¾ d t | ƒ k o d k n s( t ‚ d | k o? d k n sJ t ‚ d | k oa d k n sl t ‚ | j | j t | ƒ ƒ | j | j t t | ƒ ƒ ƒ | j | j | ƒ d S( Ni i i iÿ i ( R
R R& R t bchr( R t
source_numbert pool_numberR ( ( sL /usr/lib/python2.7/dist-packages/Crypto/Random/Fortuna/FortunaAccumulator.pyt add_random_event‰ s ("" N( R R R* R+ R R0 R$ R, R9 ( ( ( sL /usr/lib/python2.7/dist-packages/Crypto/Random/Fortuna/FortunaAccumulator.pyR _ s
( t __revision__R R t Crypto.Util.py21compatt Crypto.Util.py3compatt binasciiR R' R( t Crypto.pct_warningsR R R! t objectR R R ( ( ( sL /usr/lib/python2.7/dist-packages/Crypto/Random/Fortuna/FortunaAccumulator.pyt <module> s &
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