o
    pkjX                     @  s  U d dl mZ d dlZd dlZd dlZd dlZd dlZd dl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mZmZmZmZ d dlmZ d dlmZmZmZmZ d d	lmZmZmZm Z m!Z!m"Z" z
d d
l#m$Z% dZ&W n e'y   dZ&	ddddZ%Y nw dZ(dZ)dZ*dZ+dZ,dZ-dZ.dZ/d Z0d!Z1d"Z2e3d#Z4d$Z5d%Z6d&Z7d'Z8d(Z9d)Z:d*Z;e3e6d+ e7 ej<Z=e>e?e@d,d-ZAe	G d.d/ d/ZBeBejCd0ejDd*d*ddd1eBejCd0ejEd*d*ddd1eBejCd0ejFd*d2d*dd1d3ZGd4eHd5< e+e,e-d6ZIdd9d:ZJdd=d>ZKddCdDZLddEdFZMddJdKZNddNdOZOddPdQZPddSdTZQddUdVZRddXdYZSG dZd[ d[ZTG d\d] d]ZUG d^d_ d_ZVG d`da daZWG dbdc dcZXddddeZYG dfdg dgZZG dhdi diZ[e)eU e*eV e(eX e+eWdje\ e,eWdke] e-eWdle^ e/eZ e0e[ iZ_ddndoZ`ejaejbejcejdejef Zf	dddpddudvZgddzd{Zhejaejiejjejkejlf Zmejaejiejjejlf ZnG d|d} d}ejoZpG d~d dZqdddZr	ddddZsdddZtdddZudddZv	ddddZwdddZxejaejbejcejef ZydZzG dd dZ{dS )    )annotationsN)	dataclass)utilsUnsupportedAlgorithm)hashes)dsaeced25519paddingrsa)AEADDecryptionContextCipher
algorithmsmodes)EncodingKeySerializationEncryptionNoEncryptionPrivateFormatPublicFormat_KeySerializationEncryption)kdfTFpasswordbytessaltdesired_key_bytesintroundsignore_few_roundsboolreturnc                 C     t d)NzNeed bcrypt moduler   )r   r   r   r   r    r"   n/home/djax/ivt_ai_plugin/venv/lib/python3.10/site-packages/cryptography/hazmat/primitives/serialization/ssh.py_bcrypt_kdf0   s   r$   s   ssh-ed25519s   ssh-rsas   ssh-dsss   ecdsa-sha2-nistp256s   ecdsa-sha2-nistp384s   ecdsa-sha2-nistp521s   -cert-v01@openssh.coms   sk-ssh-ed25519@openssh.coms"   sk-ecdsa-sha2-nistp256@openssh.coms   rsa-sha2-256s   rsa-sha2-512s   \A(\S+)[ \t]+(\S+)s   openssh-key-v1 s#   -----BEGIN OPENSSH PRIVATE KEY-----s!   -----END OPENSSH PRIVATE KEY-----s   bcrypts   none
   aes256-ctr   s   (.*?)      c                   @  sF   e Zd ZU ded< ded< ded< ded< ded< d	ed
< ded< dS )
_SSHCipherztype[algorithms.AES]algr   key_lenz3type[modes.CTR] | type[modes.CBC] | type[modes.GCM]mode	block_leniv_len
int | Nonetag_lenr   is_aeadN)__name__
__module____qualname____annotations__r"   r"   r"   r#   r)   [   s   
 r)       )r*   r+   r,   r-   r.   r0   r1      )r%   s
   aes256-cbcs   aes256-gcm@openssh.comzdict[bytes, _SSHCipher]_SSH_CIPHERS)	secp256r1	secp384r1	secp521r1key&SSHPrivateKeyTypes | SSHPublicKeyTypesc                 C  s   t | tjrt|  }|S t | tjrt| }|S t | tjtjfr't	}|S t | t
jt
jfr4t}|S t | tjtjfrAt}|S td)NUnsupported key type)
isinstancer	   EllipticCurvePrivateKey_ecdsa_key_type
public_keyEllipticCurvePublicKeyr   RSAPrivateKeyRSAPublicKey_SSH_RSAr   DSAPrivateKeyDSAPublicKey_SSH_DSAr
   Ed25519PrivateKeyEd25519PublicKey_SSH_ED25519
ValueError)r<   key_typer"   r"   r#   _get_ssh_key_type   s$   
rO   rB   ec.EllipticCurvePublicKeyc                 C  s*   | j }|jtvrtd|jt|j S )z3Return SSH key_type and curve_name for private key.z'Unsupported curve for ssh private key: )curvename_ECDSA_KEY_TYPErM   )rB   rQ   r"   r"   r#   rA      s   


rA   datautils.Bufferr-   Nonec                 C  s    | r
t | | dkrtddS )zRequire data to be full blocksr   zCorrupt data: missing paddingN)lenrM   )rT   r-   r"   r"   r#   _check_block_size   s   rX   c                 C  s   | rt ddS )z!All data should have been parsed.zCorrupt data: unparsed dataN)rM   rT   r"   r"   r#   _check_empty   s   rZ   
ciphernamebytes | None)Cipher[modes.CBC | modes.CTR | modes.GCM]c                 C  sV   |st dt|  }t|||j|j |d}t||d|j |||jd S )z$Generate key + iv and return cipher.z9Key is password-protected, but password was not provided.TN)	TypeErrorr8   r$   r+   r.   r   r*   r,   )r[   r   r   r   ciphseedr"   r"   r#   _init_cipher   s   ra   
memoryviewtuple[int, memoryview]c                 C  6   t | dk r
tdtj| dd dd| dd fS )Uint32   Invalid dataNbig	byteorderrW   rM   r   
from_bytesrY   r"   r"   r#   _get_u32      "rm   c                 C  rd   )Uint64   rg   Nrh   ri   rk   rY   r"   r"   r#   _get_u64   rn   rq   tuple[memoryview, memoryview]c                 C  s8   t | \}} |t| krtd| d| | |d fS )zBytes with u32 length prefixrg   N)rm   rW   rM   )rT   nr"   r"   r#   _get_sshstr   s   rt   c                 C  s4   t | \}} |r|d dkrtdt|d| fS )zBig integer.r      rg   rh   )rt   rM   r   rl   )rT   valr"   r"   r#   
_get_mpint   s   rw   rv   c                 C  s4   | dk rt d| sdS |  d d }t| |S )z!Storage format for signed bigint.r   znegative mpint not allowed    rp   )rM   
bit_lengthr   int_to_bytes)rv   nbytesr"   r"   r#   	_to_mpint   s   r|   c                   @  sx   e Zd ZU dZded< d$d%d	d
Zd&ddZd'ddZd'ddZd(ddZ	d'ddZ
d)ddZd*d+dd Zd,d"d#ZdS )-	_FragListz,Build recursive structure without data copy.zlist[utils.Buffer]flistNinitlist[utils.Buffer] | Noner    rV   c                 C  s   g | _ |r| j | d S d S N)r~   extend)selfr   r"   r"   r#   __init__   s   z_FragList.__init__rv   rU   c                 C  s   | j | dS )zAdd plain bytesN)r~   appendr   rv   r"   r"   r#   put_raw      z_FragList.put_rawr   c                 C     | j |jddd dS )zBig-endian uint32rf   rh   lengthrj   Nr~   r   to_bytesr   r"   r"   r#   put_u32     z_FragList.put_u32c                 C  r   )zBig-endian uint64rp   rh   r   Nr   r   r"   r"   r#   put_u64  r   z_FragList.put_u64bytes | _FragListc                 C  sN   t |tttfr| t| | j| dS | |  | j	|j dS )zBytes prefixed with u32 lengthN)
r?   r   rb   	bytearrayr   rW   r~   r   sizer   r   r"   r"   r#   
put_sshstr
  s
   z_FragList.put_sshstrc                 C  s   |  t| dS )z*Big-endian bigint prefixed with u32 lengthN)r   r|   r   r"   r"   r#   	put_mpint  s   z_FragList.put_mpintc                 C  s   t tt| jS )zCurrent number of bytes)summaprW   r~   r   r"   r"   r#   r     r   z_FragList.sizer   dstbufrb   posc                 C  s2   | j D ]}t|}||| }}||||< q|S )zWrite into bytearray)r~   rW   )r   r   r   fragflenstartr"   r"   r#   render  s
   
z_FragList.renderr   c                 C  s"   t t|  }| | | S )zReturn as bytes)rb   r   r   r   tobytes)r   bufr"   r"   r#   r   #  s   
z_FragList.tobytesr   )r   r   r    rV   )rv   rU   r    rV   )rv   r   r    rV   )rv   r   r    rV   r    r   )r   )r   rb   r   r   r    r   r    r   )r2   r3   r4   __doc__r5   r   r   r   r   r   r   r   r   r   r"   r"   r"   r#   r}      s   
 




	
r}   c                   @  B   e Zd ZdZdddZdd	d
ZdddZd ddZd!ddZdS )"_SSHFormatRSAzhFormat for RSA keys.

    Public:
        mpint e, n
    Private:
        mpint n, e, d, iqmp, p, q
    rT   rb   r    "tuple[tuple[int, int], memoryview]c                 C  s$   t |\}}t |\}}||f|fS )zRSA public fieldsrw   )r   rT   ers   r"   r"   r#   
get_public3  s   z_SSHFormatRSA.get_public#tuple[rsa.RSAPublicKey, memoryview]c                 C  s.   |  |\\}}}t||}| }||fS )zMake RSA public key from data.)r   r   RSAPublicNumbersrB   )r   rT   r   rs   public_numbersrB   r"   r"   r#   load_public;  s   z_SSHFormatRSA.load_publicunsafe_skip_rsa_key_validationr   $tuple[rsa.RSAPrivateKey, memoryview]c              	   C  s   t |\}}t |\}}t |\}}t |\}}t |\}}t |\}	}||f|kr.tdt||}
t||	}t||}t||	||
|||}|j|d}||fS )zMake RSA private key from data.z Corrupt data: rsa field mismatchr   )rw   rM   r   rsa_crt_dmp1rsa_crt_dmq1r   RSAPrivateNumbersprivate_key)r   rT   	pubfieldsr   rs   r   diqmppqdmp1dmq1r   private_numbersr   r"   r"   r#   load_privateD  s$   z_SSHFormatRSA.load_privaterB   rsa.RSAPublicKeyf_pubr}   rV   c                 C  s$   |  }||j ||j dS )zWrite RSA public keyN)r   r   r   rs   )r   rB   r   pubnr"   r"   r#   encode_public\  s   z_SSHFormatRSA.encode_publicr   rsa.RSAPrivateKeyf_privc                 C  sZ   |  }|j}||j ||j ||j ||j ||j ||j dS )zWrite RSA private keyN)	r   r   r   rs   r   r   r   r   r   )r   r   r   r   r   r"   r"   r#   encode_privated  s   z_SSHFormatRSA.encode_privateN)rT   rb   r    r   )rT   rb   r    r   )rT   rb   r   r   r    r   )rB   r   r   r}   r    rV   )r   r   r   r}   r    rV   	r2   r3   r4   r   r   r   r   r   r   r"   r"   r"   r#   r   *  s    


	
r   c                   @  sL   e Zd ZdZd!ddZd"d	d
Zd#ddZd$ddZd%ddZd&ddZ	d S )'_SSHFormatDSAzhFormat for DSA keys.

    Public:
        mpint p, q, g, y
    Private:
        mpint p, q, g, y, x
    rT   rb   r    tuple[tuple, memoryview]c                 C  s@   t |\}}t |\}}t |\}}t |\}}||||f|fS )zDSA public fieldsr   )r   rT   r   r   gyr"   r"   r#   r   }  s
   z_SSHFormatDSA.get_public#tuple[dsa.DSAPublicKey, memoryview]c           	      C  sJ   |  |\\}}}}}t|||}t||}| | | }||fS )zMake DSA public key from data.)r   r   DSAParameterNumbersDSAPublicNumbers	_validaterB   )	r   rT   r   r   r   r   parameter_numbersr   rB   r"   r"   r#   r     s   
z_SSHFormatDSA.load_publicr   r   $tuple[dsa.DSAPrivateKey, memoryview]c                 C  sz   |  |\\}}}}}t|\}}||||f|krtdt|||}	t||	}
| |
 t||
}| }||fS )zMake DSA private key from data.z Corrupt data: dsa field mismatch)	r   rw   rM   r   r   r   r   DSAPrivateNumbersr   )r   rT   r   r   r   r   r   r   xr   r   r   r   r"   r"   r#   r     s   
z_SSHFormatDSA.load_privaterB   dsa.DSAPublicKeyr   r}   rV   c                 C  sL   |  }|j}| | ||j ||j ||j ||j dS )zWrite DSA public keyN)r   r   r   r   r   r   r   r   )r   rB   r   r   r   r"   r"   r#   r     s   
z_SSHFormatDSA.encode_publicr   dsa.DSAPrivateKeyr   c                 C  s$   |  | | || j dS )zWrite DSA private keyN)r   rB   r   r   r   )r   r   r   r"   r"   r#   r     s   z_SSHFormatDSA.encode_privater   dsa.DSAPublicNumbersc                 C  s    |j }|j dkrtdd S )Ni   z#SSH supports only 1024 bit DSA keys)r   r   ry   rM   )r   r   r   r"   r"   r#   r     s   z_SSHFormatDSA._validateN)rT   rb   r    r   )rT   rb   r    r   )rT   rb   r   r   r    r   )rB   r   r   r}   r    rV   )r   r   r   r}   r    rV   )r   r   r    rV   )
r2   r3   r4   r   r   r   r   r   r   r   r"   r"   r"   r#   r   t  s    




r   c                   @  sL   e Zd ZdZd#ddZd$ddZd%ddZd&ddZd'ddZd(d d!Z	d"S ))_SSHFormatECDSAzFormat for ECDSA keys.

    Public:
        str curve
        bytes point
    Private:
        str curve
        bytes point
        mpint secret
    ssh_curve_namer   rQ   ec.EllipticCurvec                 C  s   || _ || _d S r   )r   rQ   )r   r   rQ   r"   r"   r#   r     s   
z_SSHFormatECDSA.__init__rT   rb   r    0tuple[tuple[memoryview, memoryview], memoryview]c                 C  s^   t |\}}t |\}}|| jkrtdt|dkrtd|d dkr)td||f|fS )zECDSA public fieldszCurve name mismatchr   zInvalid EC point: empty datarf   zNeed uncompressed point)rt   r   rM   rW   NotImplementedError)r   rT   rQ   pointr"   r"   r#   r     s   
z_SSHFormatECDSA.get_public,tuple[ec.EllipticCurvePublicKey, memoryview]c                 C  s.   |  |\\}}}tj| j| }||fS z Make ECDSA public key from data.)r   r	   rC   from_encoded_pointrQ   r   )r   rT   _r   rB   r"   r"   r#   r     s
   
z_SSHFormatECDSA.load_publicr   r   -tuple[ec.EllipticCurvePrivateKey, memoryview]c                 C  sH   |  |\\}}}t|\}}||f|krtdt|| j}||fS )z!Make ECDSA private key from data.z"Corrupt data: ecdsa field mismatch)r   rw   rM   r	   derive_private_keyrQ   )r   rT   r   r   
curve_namer   secretr   r"   r"   r#   r     s   z_SSHFormatECDSA.load_privaterB   rP   r   r}   rV   c                 C  s*   | tjtj}|| j || dS )zWrite ECDSA public keyN)public_bytesr   X962r   UncompressedPointr   r   )r   rB   r   r   r"   r"   r#   r     s
   z_SSHFormatECDSA.encode_publicr   ec.EllipticCurvePrivateKeyr   c                 C  s,   |  }| }| || ||j dS )zWrite ECDSA private keyN)rB   r   r   r   private_value)r   r   r   rB   r   r"   r"   r#   r     s   z_SSHFormatECDSA.encode_privateN)r   r   rQ   r   )rT   rb   r    r   rT   rb   r    r   )rT   rb   r   r   r    r   )rB   rP   r   r}   r    rV   )r   r   r   r}   r    rV   )
r2   r3   r4   r   r   r   r   r   r   r   r"   r"   r"   r#   r     s    






r   c                   @  r   )"_SSHFormatEd25519z~Format for Ed25519 keys.

    Public:
        bytes point
    Private:
        bytes point
        bytes secret_and_point
    rT   rb   r    $tuple[tuple[memoryview], memoryview]c                 C  s   t |\}}|f|fS )zEd25519 public fields)rt   )r   rT   r   r"   r"   r#   r     s   
z_SSHFormatEd25519.get_public+tuple[ed25519.Ed25519PublicKey, memoryview]c                 C  s(   |  |\\}}tj| }||fS z"Make Ed25519 public key from data.)r   r
   rK   from_public_bytesr   )r   rT   r   rB   r"   r"   r#   r     s
   z_SSHFormatEd25519.load_publicr   r   ,tuple[ed25519.Ed25519PrivateKey, memoryview]c           	      C  sb   |  |\\}}t|\}}|dd }|dd }||ks#|f|kr'tdtj|}||fS )z#Make Ed25519 private key from data.Nr6   z$Corrupt data: ed25519 field mismatch)r   rt   rM   r
   rJ   from_private_bytes)	r   rT   r   r   r   keypairr   point2r   r"   r"   r#   r     s   z_SSHFormatEd25519.load_privaterB   ed25519.Ed25519PublicKeyr   r}   rV   c                 C  s   | tjtj}|| dS )zWrite Ed25519 public keyN)r   r   Rawr   r   )r   rB   r   raw_public_keyr"   r"   r#   r   ,  s   z_SSHFormatEd25519.encode_publicr   ed25519.Ed25519PrivateKeyr   c                 C  sR   |  }|tjtjt }|tjtj}t||g}| 	|| |
| dS )zWrite Ed25519 private keyN)rB   private_bytesr   r   r   r   r   r   r}   r   r   )r   r   r   rB   raw_private_keyr   	f_keypairr"   r"   r#   r   5  s   z _SSHFormatEd25519.encode_privateN)rT   rb   r    r   rT   rb   r    r   )rT   rb   r   r   r    r   )rB   r   r   r}   r    rV   )r   r   r   r}   r    rV   r   r"   r"   r"   r#   r     s    
	



	r   c                 C  s2   t | \}} | dstd| d|| fS )z!
    U2F application strings
    s   ssh:z4U2F application string does not start with b'ssh:' ())rt   r   
startswithrM   )rT   applicationr"   r"   r#   load_applicationF  s   r   c                   @  $   e Zd ZdZdddZdd	d
ZdS )_SSHFormatSKEd25519z
    The format of a sk-ssh-ed25519@openssh.com public key is:

        string		"sk-ssh-ed25519@openssh.com"
        string		public key
        string		application (user-specified, but typically "ssh:")
    rT   rb   r    r   c                 C  &   t t|\}}t|\}}||fS r   )_lookup_kformatrL   r   r   r   rT   rB   r   r"   r"   r#   r   \     z_SSHFormatSKEd25519.load_publictyping.NoReturnc                 C  r!   )Nz,sk-ssh-ed25519 private keys cannot be loadedr   r   rT   r"   r"   r#   r   d     z_SSHFormatSKEd25519.get_publicNr   rT   rb   r    r  r2   r3   r4   r   r   r   r"   r"   r"   r#   r   S  s    
r   c                   @  r   )_SSHFormatSKECDSAz
    The format of a sk-ecdsa-sha2-nistp256@openssh.com public key is:

        string		"sk-ecdsa-sha2-nistp256@openssh.com"
        string		curve name
        ec_point	Q
        string		application (user-specified, but typically "ssh:")
    rT   rb   r    r   c                 C  r   r   )r  _ECDSA_NISTP256r   r   r  r"   r"   r#   r   v  r  z_SSHFormatSKECDSA.load_publicr  c                 C  r!   )Nz4sk-ecdsa-sha2-nistp256 private keys cannot be loadedr   r  r"   r"   r#   r   ~  r  z_SSHFormatSKECDSA.get_publicNr   r  r  r"   r"   r"   r#   r	  l  s    
	r	  s   nistp256s   nistp384s   nistp521rN   c                 C  s4   t | tst|  } | tv rt|  S td| )z"Return valid format or throw errorzUnsupported key type: )r?   r   rb   r   _KEY_FORMATSr   )rN   r"   r"   r#   r    s
   
r  r   backend
typing.Anyr   SSHPrivateKeyTypesc                C  s  t d|  |durt d| t| }|std|d}|d}t	t
| || } | ts9tdt
| ttd } t| \}} t| \}} t| \}	} t| \}
} |
dkrctdt| \}} t|\}}t|}||\}}t| |tks|tkr| }|tvrtd||tkrtd|t| j}t| j}t| \}} t| jrt| }t||krtd	nt|  t|| t|	\}}t|\}}t| t||| |}| }t
||}t| jrt |t!sJ t|"| nt|#  n|rt$d
t| \}} t|  d}t|| t|\}}t|\}}||kr;tdt|\}}||krJtd|j%|||d\}}t|\}}|t&dt| kritdt |t'j(ryt)j*dt j+dd |S )z.Load private key from OpenSSH custom encoding.rT   Nr   zNot OpenSSH private key formatr'   zOnly one key supportedzUnsupported cipher: zUnsupported KDF: z+Corrupt data: invalid tag length for cipherz4Password was given but private key is not encrypted.rp   zCorrupt data: broken checksumzCorrupt data: key type mismatchr   zCorrupt data: invalid paddingDSSH DSA keys are deprecated and will be removed in a future release.   
stacklevel),r   _check_byteslike_check_bytes_PEM_RCsearchrM   r   endbinascii
a2b_base64rb   r   	_SK_MAGICrW   rt   rm   r  r   rZ   _NONEr   r8   r   _BCRYPTr-   r0   r1   r   rX   ra   	decryptorupdater?   r   finalize_with_tagfinalizer^   r   _PADDINGr   rG   warningswarnDeprecatedIn40)rT   r   r  r   mp1p2r[   kdfname
kdfoptionsnkeyspubdatapub_key_typekformatr   ciphername_bytesblklenr0   edatatagr   kbufr   r_   decck1ck2rN   r   r   r"   r"   r#   load_ssh_private_key  s   











r6  r   encryption_algorithmr   c                 C  s  t d| t| tjrtjdt jdd t| }t	|}t
 }|rQt}t| j}t}t}	t|tr:|jdur:|j}	td}
||
 ||	 t|||
|	}nt }}d}d}d}td}d	}t
 }|| ||  | t
||g}|| || | || |td|| |    t
 }|t || || || || || || | }| }tt || }|!| || }|dur|" #||| ||d  t$|d| S )
z3Serialize private key with OpenSSH custom encoding.r   ISSH DSA key support is deprecated and will be removed in a future releaserf   r  Nr&   rp   r'   rx   )%r   r  r?   r   rG   r"  r#  r$  rO   r  r}   _DEFAULT_CIPHERr8   r-   r  _DEFAULT_ROUNDSr   _kdf_roundsosurandomr   r   ra   r  r   rB   r   r   r!  r   r  rb   r   r   	encryptorupdate_intor   )r   r   r7  rN   r-  f_kdfoptionsr[   r/  r(  r   r   r_   r*  checkvalcommentf_public_key	f_secretsf_mainslenmlenr   ofsr"   r"   r#   _serialize_ssh_private_key  sj   
















 rI  c                   @  s   e Zd ZdZdZdS )SSHCertificateTyper'   r  N)r2   r3   r4   USERHOSTr"   r"   r"   r#   rJ  p  s    rJ  c                   @  s   e Zd Zd9ddZed:ddZd;ddZed<d d!Zed=d#d$Zed:d%d&Z	ed>d'd(Z
ed<d)d*Zed<d+d,Zed?d-d.Zed?d/d0Zd;d1d2Zd:d3d4Zd@d6d7Zd8S )ASSHCertificate_noncerb   _public_keySSHPublicKeyTypes_serialr   _cctype_key_id_valid_principalslist[bytes]_valid_after_valid_before_critical_optionsdict[bytes, bytes]_extensions	_sig_type_sig_key_inner_sig_type
_signature_tbs_cert_body_cert_key_typer   
_cert_bodyc                 C  s   || _ || _|| _zt|| _W n ty   tdw || _|| _|| _|| _	|	| _
|
| _|| _|| _|| _|| _|| _|| _|| _d S )NzInvalid certificate type)rN  rO  rQ  rJ  _typerM   rS  rT  rV  rW  rX  rZ  r[  r\  r]  r^  r`  ra  r_  )r   rN  rO  rQ  rR  rS  rT  rV  rW  rX  rZ  r[  r\  r]  r^  r_  r`  ra  r"   r"   r#   r   v  s*   
zSSHCertificate.__init__r    c                 C  
   t | jS r   )r   rN  r   r"   r"   r#   nonce     
zSSHCertificate.nonceSSHCertPublicKeyTypesc                 C  s   t t| jS r   )typingcastrf  rO  r   r"   r"   r#   rB     s   zSSHCertificate.public_keyc                 C     | j S r   )rQ  r   r"   r"   r#   serial     zSSHCertificate.serialrJ  c                 C  ri  r   )rb  r   r"   r"   r#   type  rk  zSSHCertificate.typec                 C  rc  r   )r   rS  r   r"   r"   r#   key_id  re  zSSHCertificate.key_idc                 C  ri  r   )rT  r   r"   r"   r#   valid_principals  rk  zSSHCertificate.valid_principalsc                 C  ri  r   )rW  r   r"   r"   r#   valid_before  rk  zSSHCertificate.valid_beforec                 C  ri  r   )rV  r   r"   r"   r#   valid_after  rk  zSSHCertificate.valid_afterc                 C  ri  r   )rX  r   r"   r"   r#   critical_options  rk  zSSHCertificate.critical_optionsc                 C  ri  r   )rZ  r   r"   r"   r#   
extensions  rk  zSSHCertificate.extensionsc                 C  s&   t | j}|| j\}}t| |S r   )r  r[  r   r\  rZ   )r   	sigformatsignature_keysigkey_restr"   r"   r#   rt    s   
zSSHCertificate.signature_keyc                 C  s"   t | jd tjt | jdd S )N    F)newline)r   r`  r  
b2a_base64ra  r   r"   r"   r#   r     s   zSSHCertificate.public_bytesrV   c                 C  s  |   }t|tjr|t| jt| j d S t|tj	rIt
| j\}}t
|\}}t| t||}t|j}||t| jt| d S t|tjsQJ | jtkr[t }n| jtkret }n| jtkslJ t }|t| jt| jt | d S r   )rt  r?   r
   rK   verifyr   r^  r_  r	   rC   rw   rZ   
asym_utilsencode_dss_signature_get_ec_hash_algrQ   ECDSAr   rE   r]  rF   r   SHA1_SSH_RSA_SHA256SHA256_SSH_RSA_SHA512SHA512r   PKCS1v15)r   rt  rrT   scomputed_sighash_algr"   r"   r#   verify_cert_signature  s6   




z$SSHCertificate.verify_cert_signatureN)"rN  rb   rO  rP  rQ  r   rR  r   rS  rb   rT  rU  rV  r   rW  r   rX  rY  rZ  rY  r[  rb   r\  rb   r]  rb   r^  rb   r_  rb   r`  r   ra  rb   r   )r    rf  r   )r    rJ  )r    rU  )r    rY  )r    rV   )r2   r3   r4   r   propertyrd  rB   rj  rl  rm  rn  ro  rp  rq  rr  rt  r   r  r"   r"   r"   r#   rM  u  s0    
)


rM  rQ   r   hashes.HashAlgorithmc                 C  s@   t | tjr
t S t | tjrt S t | tjsJ t S r   )	r?   r	   	SECP256R1r   r  	SECP384R1SHA384	SECP521R1r  )rQ   r"   r"   r#   r|    s   r|  "SSHCertificate | SSHPublicKeyTypesc           "      C  sp  t d|  t| }|std|d }}|d}d}|tr/d}|d tt  }|t	kr9|s9t
dt|}z	tt|}W n ttjfyT   tdw |rY|}	t|\}
}|
|krgtd	|rot|\}}||\}}|r2t|\}}t|\}}t|\}}t|\}}g }|rt|\}}|t| |st|\}}t|\}}t|\}}t|}t|\}}t|}t|\}}t|\}}t|\}}|t	kr|st
d
|	d t|  }t|\}}t| t|\}} |tkr|tttfvs|tkr||krtdt| \}!} t|  t||||||||||||||!|||	S t| |S )NrT   zInvalid line formatr'   r  FTz-DSA keys aren't supported in SSH certificateszInvalid formatzInvalid key formatz3DSA signatures aren't supported in SSH certificatesz!Signature key type does not match)r   r  _SSH_PUBKEY_RCmatchrM   groupendswith_CERT_SUFFIXrW   rI   r   r  rb   r  r  r^   Errorrt   r   rq   rm   r   r   _parse_exts_optsrZ   rF   r  r  rM  )"rT   _legacy_dsa_allowedr%  rN   orig_key_typekey_body	with_certr-  rest	cert_bodyinner_key_typerd  rB   rj  cctyperm  
principalsrn  	principalrp  ro  crit_optionsrq  extsrr  r   sig_key_rawsig_typesig_keytbs_cert_bodysignature_rawinner_sig_typesig_rest	signaturer"   r"   r#   _load_ssh_public_identity   s   



r  c                 C  s   t | S r   )r  rY   r"   r"   r#   load_ssh_public_identity_  s   r  	exts_optsrY  c                 C  s   i }d }| rJt | \}} t|}||v rtd|d ur$||k r$tdt | \}} t|dkr@t |\}}t|dkr@tdt|||< |}| s|S )NzDuplicate namezFields not lexically sortedr   z!Unexpected extra data after value)rt   r   rM   rW   )r  result	last_namerR   bnamevalueextrar"   r"   r#   r  e  s$   r  rP  hash_algorithm(hashes.MD5 | hashes.SHA1 | hashes.SHA256c                 C  sn   t |tjtjtjfstdt| }t|}t }|	| |
| | | }t|}|| | S )Nz2hash_algorithm must be either MD5, SHA1, or SHA256)r?   r   MD5r~  r  r^   rO   r  r}   r   r   r   Hashr  r   )r<   r  rN   r-  r   ssh_binary_datahash_objr"   r"   r#   ssh_key_fingerprinty  s   


r  c                 C  sF   t | dd}t|tr| }n|}t|tjr!tjdtj	dd |S )NT)r  r  r  r  )
r  r?   rM  rB   r   rH   r"  r#  r   r$  )rT   r  cert_or_keyrB   r"   r"   r#   load_ssh_public_key  s   

r  c                 C  sl   t | tjrtjdtjdd t| }t|}t	 }|
| || | t|  }d|d|gS )z&One-line public key format for OpenSSHr8  rf   r  rx   rv  )r?   r   rH   r"  r#  r   r$  rO   r  r}   r   r   r  rx  r   stripjoin)rB   rN   r-  r   pubr"   r"   r#   serialize_ssh_public_key  s   
r     c                
   @  s   e Zd Zddddg dddg g f
d>ddZd?ddZd@ddZdAd!d"ZdBd%d&ZdCd(d)Zd*d+ Z	dDd.d/Z
dEd1d2ZdFd5d6ZdFd7d8ZdGd<d=ZdS )HSSHCertificateBuilderNFrO  SSHCertPublicKeyTypes | NonerQ  r/   rb  SSHCertificateType | NonerS  r\   rT  rU  _valid_for_all_principalsr   rW  rV  rX  list[tuple[bytes, bytes]]rZ  c                 C  s@   || _ || _|| _|| _|| _|| _|| _|| _|	| _|
| _	d S r   
rO  rQ  rb  rS  rT  r  rW  rV  rX  rZ  )r   rO  rQ  rb  rS  rT  r  rW  rV  rX  rZ  r"   r"   r#   r     s   
zSSHCertificateBuilder.__init__rB   rf  r    c                 C  s^   t |tjtjtjfstd| jd urt	dt
|| j| j| j| j| j| j| j| j| jd
S )Nr>   zpublic_key already setr  )r?   r	   rC   r   rE   r
   rK   r^   rO  rM   r  rQ  rb  rS  rT  r  rW  rV  rX  rZ  )r   rB   r"   r"   r#   rB     s,   
z SSHCertificateBuilder.public_keyrj  r   c                 C  sv   t |ts	tdd|  krdk std td| jd ur$tdt| j|| j| j| j	| j
| j| j| j| jd
S )Nzserial must be an integerr               z"serial must be between 0 and 2**64zserial already setr  )r?   r   r^   rM   rQ  r  rO  rb  rS  rT  r  rW  rV  rX  rZ  )r   rj  r"   r"   r#   rj    s(   

zSSHCertificateBuilder.serialrl  rJ  c                 C  sR   t |ts	td| jd urtdt| j| j|| j| j	| j
| j| j| j| jd
S )Nz"type must be an SSHCertificateTypeztype already setr  )r?   rJ  r^   rb  rM   r  rO  rQ  rS  rT  r  rW  rV  rX  rZ  )r   rl  r"   r"   r#   rl    s    

zSSHCertificateBuilder.typerm  r   c                 C  sR   t |ts	td| jd urtdt| j| j| j|| j	| j
| j| j| j| jd
S )Nzkey_id must be byteszkey_id already setr  )r?   r   r^   rS  rM   r  rO  rQ  rb  rT  r  rW  rV  rX  rZ  )r   rm  r"   r"   r#   rm  #  s    

zSSHCertificateBuilder.key_idrn  c                 C  s|   | j rtdtdd |D r|std| jrtdt|tkr'tdt| j| j	| j
| j|| j | j| j| j| jd
S )NzDPrincipals can't be set because the cert is valid for all principalsc                 s  s    | ]}t |tV  qd S r   )r?   r   ).0r   r"   r"   r#   	<genexpr>?  s    z9SSHCertificateBuilder.valid_principals.<locals>.<genexpr>z5principals must be a list of bytes and can't be emptyzvalid_principals already setz:Reached or exceeded the maximum number of valid_principalsr  )r  rM   allr^   rT  rW   _SSHKEY_CERT_MAX_PRINCIPALSr  rO  rQ  rb  rS  rW  rV  rX  rZ  )r   rn  r"   r"   r#   rn  6  s:   z&SSHCertificateBuilder.valid_principalsc                 C  sJ   | j rtd| jrtdt| j| j| j| j| j d| j| j	| j
| jd
S )Nz@valid_principals already set, can't set valid_for_all_principalsz$valid_for_all_principals already setTr  )rT  rM   r  r  rO  rQ  rb  rS  rW  rV  rX  rZ  r   r"   r"   r#   valid_for_all_principalsZ  s$   z.SSHCertificateBuilder.valid_for_all_principalsro  int | floatc                 C  sv   t |ttfstdt|}|dk s|dkrtd| jd ur$tdt| j| j| j	| j
| j| j|| j| j| jd
S )Nz$valid_before must be an int or floatr   r  zvalid_before must [0, 2**64)zvalid_before already setr  )r?   r   floatr^   rM   rW  r  rO  rQ  rb  rS  rT  r  rV  rX  rZ  )r   ro  r"   r"   r#   ro  p  s&   
z"SSHCertificateBuilder.valid_beforerp  c                 C  sv   t |ttfstdt|}|dk s|dkrtd| jd ur$tdt| j| j| j	| j
| j| j| j|| j| jd
S )Nz#valid_after must be an int or floatr   r  zvalid_after must [0, 2**64)zvalid_after already setr  )r?   r   r  r^   rM   rV  r  rO  rQ  rb  rS  rT  r  rW  rX  rZ  )r   rp  r"   r"   r#   rp    s&   
z!SSHCertificateBuilder.valid_afterrR   r  c                 C  st   t |tr
t |tstd|dd | jD v rtdt| j| j| j| j	| j
| j| j| jg | j||f| jd
S )Nname and value must be bytesc                 S     g | ]\}}|qS r"   r"   r  rR   r   r"   r"   r#   
<listcomp>      z=SSHCertificateBuilder.add_critical_option.<locals>.<listcomp>zDuplicate critical option namer  )r?   r   r^   rX  rM   r  rO  rQ  rb  rS  rT  r  rW  rV  rZ  r   rR   r  r"   r"   r#   add_critical_option  s    z)SSHCertificateBuilder.add_critical_optionc                 C  st   t |tr
t |tstd|dd | jD v rtdt| j| j| j| j	| j
| j| j| j| jg | j||fd
S )Nr  c                 S  r  r"   r"   r  r"   r"   r#   r    r  z7SSHCertificateBuilder.add_extension.<locals>.<listcomp>zDuplicate extension namer  )r?   r   r^   rZ  rM   r  rO  rQ  rb  rS  rT  r  rW  rV  rX  r  r"   r"   r#   add_extension  s    z#SSHCertificateBuilder.add_extensionr   SSHCertPrivateKeyTypesrM  c              	   C  s  t |tjtjtjfstd| jd u rt	d| j
d u rdn| j
}| jd u r+t	d| jd u r2dn| j}| js?| js?t	d| jd u rHt	d| jd u rQt	d| j| jkr[t	d	| jjd
d d | jjdd d t| j}|t }td}t|}t }|| || || j| || || jj || t }	| jD ]}
|	|
 q||	  || j || j t }| jD ]$\}}|| t |dkrt }|| ||  q|| q||  t }| jD ]%\}}|| t |dkrt }|| ||  q|| q||  |d t|}t|}t }|| ||! | ||  t |tjrq|"| }t }|| || ||  nlt |tjrt#|j$}|"| t%|}t&'|\}}t }|| t }|(| |(| ||  ||  n*t |tjsJ t }|t) |"| t*+ t,- }|| ||  t./| 0 }t12t3t4d5|d|gS )NzUnsupported private key typezpublic_key must be setr   ztype must be setrx   zAvalid_principals must be set if valid_for_all_principals is Falsezvalid_before must be setzvalid_after must be setz-valid_after must be earlier than valid_beforec                 S     | d S Nr   r"   r   r"   r"   r#   <lambda>      z,SSHCertificateBuilder.sign.<locals>.<lambda>)r<   c                 S  r  r  r"   r  r"   r"   r#   r    r  r6   rv  )6r?   r	   r@   r   rD   r
   rJ   r^   rO  rM   rQ  rb  rS  rT  r  rW  rV  rX  sortrZ  rO   r  r<  r=  r  r}   r   r   r   r   r  r   rW   rB   signr|  rQ   r}  rz  decode_dss_signaturer   r  r   r  r   r  r  rx  r  rg  rh  rM  r  r  )r   r   rj  rm  rN   cert_prefixrd  r-  ffprincipalsr   fcritrR   r  foptvalfextfextvalca_typecaformatcafr  fsigr  r  r  fsigblob	cert_datar"   r"   r#   r    s   
























zSSHCertificateBuilder.sign)rO  r  rQ  r/   rb  r  rS  r\   rT  rU  r  r   rW  r/   rV  r/   rX  r  rZ  r  )rB   rf  r    r  )rj  r   r    r  )rl  rJ  r    r  )rm  r   r    r  )rn  rU  r    r  )ro  r  r    r  )rp  r  r    r  )rR   r   r  r   r    r  )r   r  r    rM  )r2   r3   r4   r   rB   rj  rl  rm  rn  r  ro  rp  r  r  r  r"   r"   r"   r#   r    s.    


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r  )F)r   r   r   r   r   r   r   r   r   r   r    r   )r<   r=   r    r   )rB   rP   r    r   )rT   rU   r-   r   r    rV   )rT   rU   r    rV   )
r[   r   r   r\   r   r   r   r   r    r]   )rT   rb   r    rc   )rT   rb   r    rr   )rv   r   r    r   )r    rr   )rN   rU   r   )
rT   rU   r   r\   r  r  r   r   r    r  )r   r  r   r   r7  r   r    r   )rQ   r   r    r  )rT   rU   r    r  )r  rb   r    rY  )r<   rP  r  r  r    r   )rT   rU   r  r  r    rP  )rB   rP  r    r   )|
__future__r   r  enumr<  rerg  r"  dataclassesr   cryptographyr   cryptography.exceptionsr   cryptography.hazmat.primitivesr   )cryptography.hazmat.primitives.asymmetricr   r	   r
   r   r   rz  &cryptography.hazmat.primitives.ciphersr   r   r   r   ,cryptography.hazmat.primitives.serializationr   r   r   r   r   r   bcryptr   r$   _bcrypt_supportedImportErrorrL   rF   rI   r
  _ECDSA_NISTP384_ECDSA_NISTP521r  _SK_SSH_ED25519_SK_SSH_ECDSA_NISTP256r  r  compiler  r  	_SK_START_SK_ENDr  r  r9  r:  DOTALLr  rb   r   ranger!  r)   AESCTRCBCGCMr8   r5   rS   rO   rA   rX   rZ   ra   rm   rq   rt   rw   r|   r}   r   r   r   r   r   r   r	  r  r  r  r  r  Unionr@   rD   rG   rJ   r  r6  rI  rC   rE   rH   rK   rP  rf  EnumrJ  rM  r|  r  r  r  r  r  r  r  r  r  r"   r"   r"   r#   <module>   s.   	
		 




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6JFI
C
	
rM 

_


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