/usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf
Edit: /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyc (4680B)
Ñò
›KVc @` sÞ d d k l Z l Z l Z d d k Z d d k l Z d d k l Z l Z l
Z
l Z d d k l
Z
d d k l Z l Z d d k l Z e i e ƒ d e f d „ ƒ Yƒ Z e i e ƒ d
e f d „ ƒ Yƒ Z d S( i ( t absolute_importt divisiont print_functionN( t utils( t AlreadyFinalizedt
InvalidKeyt UnsupportedAlgorithmt _Reasons( t HMACBackend( t
constant_timet hmac( t KeyDerivationFunctiont HKDFc B` s, e Z d „ Z d „ Z d „ Z d „ Z RS( c C` s² t | t ƒ p t d t i ƒ ‚ n | | _ | d j p
t | t ƒ p t d ƒ ‚ n | d j o d | i i d } n | | _
| | _ t | i | | | ƒ | _
d S( Ns. Backend object does not implement HMACBackend.s salt must be bytes.t i ( t
isinstanceR R R t BACKEND_MISSING_INTERFACEt
_algorithmt Nonet bytest TypeErrort digest_sizet _saltt _backendt
HKDFExpandt _hkdf_expand( t selft algorithmt lengtht saltt infot backend( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyt __init__ s
c C` s8 t i | i | i d | i ƒ} | i | ƒ | i ƒ S( NR ( R
t HMACR R R t updatet finalize( R t key_materialt h( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyt _extract) s !
c C` s9 t | t ƒ p t d ƒ ‚ n | i i | i | ƒ ƒ S( Ns key_material must be bytes.( R R R R t deriveR% ( R R# ( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyR& . s c C` s* t i | i | ƒ | ƒ p
t ‚ n d S( N( R t bytes_eqR& R ( R R# t expected_key( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyt verify4 s ( t __name__t
__module__R R% R& R) ( ( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyR s R c B` s, e Z d „ Z d „ Z d „ Z d „ Z RS( c C` sÒ t | t ƒ p t d t i ƒ ‚ n | | _ | | _ d | i d } | | j o t d i | ƒ ƒ ‚ n | | _
| d j p
t | t ƒ p t
d ƒ ‚ n | d j o
d } n | | _ t | _ d S( Ns. Backend object does not implement HMACBackend.iÿ i s+ Can not derive keys larger than {0} octets.s info must be bytes.t ( R R R R R R R R t
ValueErrort formatt _lengthR R R t _infot Falset _used( R R R R R t
max_length( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyR ; s$
c C` sÁ d g } d } x› | i i d t | ƒ | i j ov t i | | i d | i ƒ} | i | d ƒ | i | i ƒ | i t i
| ƒ ƒ | i | i ƒ ƒ | d 7} q Wd i
| ƒ | i S( NR, i i R iÿÿÿÿ( R R t lenR/ R
R R R! R0 t sixt int2bytet appendR" t join( R R# t outputt counterR$ ( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyt _expandZ s $ c C` sJ t | t ƒ p t d ƒ ‚ n | i o
t ‚ n t | _ | i | ƒ S( Ns key_material must be bytes.( R R R R2 R t TrueR; ( R R# ( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyR& h s
c C` s* t i | i | ƒ | ƒ p
t ‚ n d S( N( R R' R& R ( R R# R( ( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyR) r s ( R* R+ R R; R& R) ( ( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyR 9 s
( t
__future__R R R R5 t cryptographyR t cryptography.exceptionsR R R R t' cryptography.hazmat.backends.interfacesR t cryptography.hazmat.primitivesR R
t" cryptography.hazmat.primitives.kdfR t register_interfacet objectR R ( ( ( sM /usr/lib64/python2.6/site-packages/cryptography/hazmat/primitives/kdf/hkdf.pyt
s "&