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Variant on `KexGroup1 <paramiko.kex_group1.KexGroup1>` where the prime "p" and
generator "g" are provided by the server. A bit more work is required on the
client side, and a **lot** more on the server side.
i����N( t sha1t sha256( t util( t DEBUG( t Message( t byte_chrt byte_ordt byte_mask( t SSHExceptioni i# t KexGexc B sz e Z d Z d Z d Z d Z e Z d � Z e d � Z
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s" diffie-hellman-group-exchange-sha1i i i c C sL | | _ d | _ d | _ d | _ d | _ d | _ d | _ t | _ d S( N(
t transportt Nonet pt qt gt xt et ft Falset old_style( t selfR
( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyt __init__< s c C s� | j j r# | j j t t � d St � } | r[ | j t � | j | j � t
| _ n= | j t � | j | j
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t server_modet _expect_packett _MSG_KEXDH_GEX_REQUESTt _MSG_KEXDH_GEX_REQUEST_OLDR t add_bytet c_MSG_KEXDH_GEX_REQUEST_OLDt add_intt preferred_bitst TrueR t c_MSG_KEXDH_GEX_REQUESTt min_bitst max_bitst
_send_messaget _MSG_KEXDH_GEX_GROUP( R t _test_old_stylet m( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyt start_kexF s
c C s� | t k r | j | � S| t k r2 | j | � S| t k rK | j | � S| t k rd | j | � S| t k r} | j | � Sd } t
| j | j | � � � d S( Ns* KexGex {} asked to handle packet type {:d}(
R t _parse_kexdh_gex_requestR# t _parse_kexdh_gex_groupt _MSG_KEXDH_GEX_INITt _parse_kexdh_gex_initt _MSG_KEXDH_GEX_REPLYt _parse_kexdh_gex_replyR t _parse_kexdh_gex_request_oldR t formatt name( R t ptypeR% t msg( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyt
parse_next] s
c C s� | j d d } t j | d � } t | d � } t | � } d } x" | d @si | d K} | d L} qH Wxb t r� t j | � } t | d | � | d } t j | d � } | d k rm | | k rm Pqm qm W| | _
d S( Ni i i i� i� ( R R t deflate_longR t lenR t ost urandomR t inflate_longR ( R R
t qnormt qhbytet
byte_countt qmaskt x_bytesR ( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyt _generate_xm s
c C sf | j � } | j � } | j � } | | j k r? | j } n | | j k rZ | j } n | | k ro | } n | | k r� | } n | | _ | | _ | | _ | j j � } | d k r� t d � � n | j j t d j
| | | � � | j | | | � \ | _ | _
t � } | j t � | j | j
� | j | j � | j j | � | j j t � d S( Ns- Can't do server-side gex with no modulus packs Picking p ({} <= {} <= {} bits)( t get_intR! R R R
t _get_modulus_packR R t _logR R. t get_modulusR R R R t c_MSG_KEXDH_GEX_GROUPt add_mpintR" R R) ( R R% t minbitst
preferredbitst maxbitst pack( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyR' s8 !
c C s' | j � | _ | j | j k r0 | j | _ n | j | j k rQ | j | _ n | j j � } | d k r{ t d � � n | j j t d j
| j � � | j | j | j | j � \ | _ | _
t � } | j t � | j | j
� | j | j � | j j | � | j j t � t | _ d S( Ns- Can't do server-side gex with no modulus packs Picking p (~ {} bits)( R> R R! R R
R? R R R@ R R. RA R R R R RB RC R" R R) R R ( R R% RG ( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyR- � s& $
c C s� | j � | _ | j � | _ t j | j � } | d k sH | d k r` t d j | � � � n | j j t d j | � � | j
� t | j | j | j � | _
t � } | j t � | j | j
� | j j | � | j j t � d S( Ni i s< Server-generated gex p (don't ask) is out of range ({} bits)s Got server p ({} bits)( t get_mpintR R R t
bit_lengthR R. R
R@ R R= t powR R R R t c_MSG_KEXDH_GEX_INITRC R" R R+ ( R R% t bitlen( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyR( � s
c C s | j � | _ | j d k s4 | j | j d k rC t d � � n | j � t | j | j | j � | _ t | j | j | j � } | j j
� j � } t � } | j
| j j | j j | j j | j j | � | j s� | j | j � n | j | j � | j s | j | j � n | j | j � | j | j � | j | j � | j | j � | j | � | j | j � � j � } | j j | | � | j j
� j | � } t � } | j t � | j | � | j | j � | j | � | j j | � | j j � d S( Ni s Client kex "e" is out of range(! RH R R R R= RJ R R R R
t get_server_keyt asbytesR t addt remote_versiont
local_versiont remote_kex_initt local_kex_initR R R R R! RC t hash_algot digestt _set_K_Ht
sign_ssh_dataR t c_MSG_KEXDH_GEX_REPLYt
add_stringR" t _activate_outbound( R R% t Kt keyt hmt Ht sig( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyR* � sD %
c C s� | j � } | j � | _ | j � } | j d k sL | j | j d k r[ t d � � n t | j | j | j � } t � } | j | j j
| j j | j j | j j
| � | j s� | j | j � n | j | j � | j s� | j | j � n | j | j � | j | j � | j | j � | j | j � | j | � | j j | | j | j � � j � � | j j | | � | j j � d S( Ni s Server kex "f" is out of range( t
get_stringRH R R R RJ R R RO R
RQ RP RS RR R R R R R! RC R R RV RT RN RU t _verify_keyRZ ( R R% t host_keyR_ R[ R] ( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyR, � s4 %
(( t __name__t
__module__R/ R R! R R RT R R R& R2 R= R' R- R( R* R, ( ( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyR 4 s
& )t KexGexSHA256c B s e Z d Z e Z RS( s$ diffie-hellman-group-exchange-sha256( Rc Rd R/ R RT ( ( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyRe s ( t __doc__R5 t hashlibR R t paramikoR t paramiko.commonR t paramiko.messageR t paramiko.py3compatR R R t paramiko.ssh_exceptionR t rangeR R# R) R+ R t cR RB RK RX R t objectR Re ( ( ( s4 /tmp/pip-install-A1qMVe/paramiko/paramiko/kex_gex.pyt <module> s 7�