| Current File : //lib/python2.7/site-packages/paramiko/ecdsakey.pyo |
�
=OXc @ s� d Z d d l m Z d d l m Z d d l m Z m Z d d l m Z d d l
m Z m Z d d l
m Z d d l m Z d d l m Z d d
l m Z d d l m Z d e f d
� � YZ d e f d � � YZ d e f d � � YZ d S( s
ECDSA keys
i����( t InvalidSignature( t default_backend( t hashest
serialization( t ec( t decode_dss_signaturet encode_dss_signature( t four_byte( t Message( t PKey( t SSHException( t deflate_longt _ECDSACurvec B s e Z d Z d � Z RS( s�
Represents a specific ECDSA Curve (nistp256, nistp384, etc).
Handles the generation of the key format identifier and the selection of
the proper hash function. Also grabs the proper curve from the 'ecdsa'
package.
c C sz | | _ | j | _ d | j | _ | j d k rC t j | _ n* | j d k ra t j | _ n t j | _ | | _ d S( Ns ecdsa-sha2-i i� (
t nist_namet key_sizet
key_lengtht key_format_identifierR t SHA256t hash_objectt SHA384t SHA512t curve_class( t selfR R
( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt __init__. s ( t __name__t
__module__t __doc__R ( ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyR & s t _ECDSACurveSetc B s; e Z d Z d � Z d � Z d � Z d � Z d � Z RS( s�
A collection to hold the ECDSA curves. Allows querying by oid and by key
format identifier. The two ways in which ECDSAKey needs to be able to look
up curves.
c C s
| | _ d S( N( t ecdsa_curves( R R ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyR F s c C s g | j D] } | j ^ q
S( N( R R ( R t curve( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt get_key_format_identifier_listI s c C s+ x$ | j D] } | j | k r
| Sq
Wd S( N( R R ( R R R ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt get_by_curve_classL s c C s+ x$ | j D] } | j | k r
| Sq
Wd S( N( R R ( R R R ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt get_by_key_format_identifierQ s c C s+ x$ | j D] } | j | k r
| Sq
Wd S( N( R R ( R R R ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt get_by_key_lengthV s ( R R R R R R R R! ( ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyR @ s t ECDSAKeyc B s e Z d Z e e e j d � e e j d � e e j d � g � Z d d d d d d e d � Z e
d � � Z d � Z d � Z d � Z d � Z d
� Z d � Z d � Z d
� Z d d � Z d d � Z e
e j � d d d � � Z d � Z d � Z d � Z d � Z d � Z RS( s\
Representation of an ECDSA key which can be used to sign and verify SSH2
data.
t nistp256t nistp384t nistp521c C s� d | _ d | _ | d k r2 | j | | � d S| d k rR | j | | � d S| d k ry | d k ry t | � } n | d k r� | \ | _ | _ | j j j } | j j | � | _
n� | d k r� t d � � n | j j | j
� � | _
| j
d k rt d � � n | j
� } | | j
j k rCt d | � � n | j � }
y" t j j | j
j � |
� } Wn t k
r�t d � � n X| j d t � � | _ d S( Ns Key object may not be emptys Invalid keys Can't handle curve of type %ss Invalid public keyt backend( t Nonet
verifying_keyt signing_keyt _from_private_keyt _from_private_key_fileR R t __class__t
_ECDSA_CURVESR t ecdsa_curveR
R t get_textR
t
get_binaryR t EllipticCurvePublicNumberst from_encoded_pointR t
ValueErrort
public_keyR ( R t msgt datat filenamet passwordt valst file_objt validate_pointt c_classt curvenamet pointinfot numbers( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyR h s<
c C s
| j j � S( N( R- R ( t cls( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt supported_key_format_identifiers� s c C s� | j } t � } | j | j j � | j | j j � | j � } | j j d d } t | j
d t �} d | t | � | } t | j
d t �} d | t | � | } t | | } | j | � | j � S( Ni i t add_sign_paddingt ( R( R t
add_stringR. R R
t public_numbersR R R t xt Falset lent yR t asbytes( R t keyt mR? t key_size_bytest x_bytest y_bytest point_str( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyRJ � s
c C s
| j � S( N( RJ ( R ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt __str__� s c C s\ t | j � � } | d t | j j � j � } | d t | j j � j � } t | � S( Ni% ( t hasht get_nameR( RE RF RI ( R t h( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt __hash__� s c C s
| j j S( N( R. R ( R ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyRS � s c C s
| j j S( N( R. R ( R ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt get_bits� s c C s
| j d k S( N( R) R' ( R ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt can_sign� s c C s� t j | j j � � } | j j | � } | j | � | j � } t | � \ } } t � } | j
| j j � | j
| j | | � � | S( N(
R t ECDSAR. R R) t signert updatet finalizeR R RD R t
_sigencode( R R6 t ecdsaRY t sigt rt sRL ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt
sign_ssh_data� s
c C s� | j � | j j k r t S| j � } | j | � \ } } t | | � } | j j | t j
| j j � � � } | j | � y | j
� Wn t k
r� t SXt Sd S( N( R/ R. R RG R0 t
_sigdecodeR R( t verifierR RX R RZ t verifyR t True( R R6 R5 R^ t sigRt sigSt signatureRc ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt verify_ssh_sig� s
c C s& | j | | j t j j d | �d S( NR8 ( t _write_private_key_fileR) R t
PrivateFormatt TraditionalOpenSSL( R R7 R8 ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt write_private_key_file� s
c C s& | j | | j t j j d | �d S( NR8 ( t _write_private_keyR) R Rk Rl ( R R: R8 ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt write_private_key� s
c C s} | d k rL | j j | � } | d k r= t d | � � n | j � } n t j | d t � �} t d | | j � f � S( s
Generate a new private ECDSA key. This factory function can be used to
generate a new host key or authentication key.
:param function progress_func: Not used for this type of key.
:returns: A new private key (`.ECDSAKey`) object
s Unsupported key length: %dR& R9 N(
R' R- R! R3 R R t generate_private_keyR R" R4 ( R@ R t
progress_funct bitst private_key( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt generate� s c C s& | j d | | � } | j | � d S( Nt EC( t _read_private_key_filet _decode_key( R R7 R8 R6 ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyR+ � s c C s& | j d | | � } | j | � d S( NRu ( t _read_private_keyRw ( R R: R8 R6 ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyR* � s c C s� y" t j | d d d t � �} Wn+ t t f k
rO } t t | � � � n X| | _ | j � | _
| j j } | j
j | � | _ d S( NR8 R& ( R t load_der_private_keyR' R R3 t AssertionErrorR
t strR) R4 R( R R, R- R R. ( R R6 RK t eR ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyRw s c C s- t � } | j | � | j | � | j � S( N( R t add_mpintRJ ( R R_ R` R5 ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyR\
s
c C s. t | � } | j � } | j � } | | f S( N( R t get_mpint( R R^ R5 R_ R` ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyRb s N( R R R R R R t SECP256R1t SECP384R1t SECP521R1R- R' Re R t classmethodRA RJ RQ RU RS RV RW Ra Ri Rm Ro Rt R+ R* Rw R\ Rb ( ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyR" \ s2 #
N( R t cryptography.exceptionsR t cryptography.hazmat.backendsR t cryptography.hazmat.primitivesR R t) cryptography.hazmat.primitives.asymmetricR t/ cryptography.hazmat.primitives.asymmetric.utilsR R t paramiko.commonR t paramiko.messageR t
paramiko.pkeyR t paramiko.ssh_exceptionR
t
paramiko.utilR t objectR R R" ( ( ( s5 /usr/lib/python2.7/site-packages/paramiko/ecdsakey.pyt <module> s