o
    bi                     @  sB  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 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Z0dZ1d Z2d!Z3d"Z4d#Z5e6d$Z7d%Z8d&Z9d'Z:d(Z;d)Z<d*Z=d+Z>e6e9d, e: ej?Z@eAeBeCd-d.ZDeG d/d0 d0ZEeEejFd1ejGd+d+ddd2eEejFd1ejHd+d+ddd2eEejFd1ejId+d3d+dd2d4ZJd5eKd6< e.e/e0d7ZLdd:d;ZMdd>d?ZNe9d@ e:d@ fddEdFZOddIdJZPddKdLZQddPdQZRddTdUZSddVdWZTddYdZZUdd[d\ZVdd^d_ZWG d`da daZXG dbdc dcZYG ddde deZZG dfdg dgZ[G dhdi diZ\ddjdkZ]G dldm dmZ^G dndo doZ_e,eY e-eZ e+e\ e.e[dpe` e/e[dqea e0e[dreb e2e^ e3e_ iZcddtduZdejeejfejgejhejif Zj	dddvdd{d|ZkdddZlejeejmejnejoejpf Zqejeejmejnejpf ZrG dd dejsZtG dd dZudddZv	ddddZwdddZxdddZydddZz	ddddZ{dddZ|ejeejfejgejif Z}dZ~G dd dZdS )    )annotationsN)encodebytes)	dataclass)utilsUnsupportedAlgorithm)hashes)dsaeced25519paddingrsa)AEADDecryptionContextCipher
algorithmsmodes)EncodingKeySerializationEncryptionNoEncryptionPrivateFormatPublicFormat_KeySerializationEncryption)kdfTFpasswordbytessaltdesired_key_bytesintroundsignore_few_roundsboolreturnc                 C     t d)NzNeed bcrypt moduler   )r   r   r   r   r    r#   j/home/kim/smarthome/.venv/lib/python3.10/site-packages/cryptography/hazmat/primitives/serialization/ssh.py_bcrypt_kdf1   s   r%   s   ssh-ed25519s   ssh-rsas   ssh-dsss   ecdsa-sha2-nistp256s   ecdsa-sha2-nistp384s   ecdsa-sha2-nistp521s   -cert-v01@openssh.coms   sk-ssh-ed25519@openssh.coms"   sk-ecdsa-sha2-nistp256@openssh.coms   rsa-sha2-256s   rsa-sha2-512s   \A(\S+)[ \t]+(\S+)s   openssh-key-v1 s#   -----BEGIN OPENSSH PRIVATE KEY-----s!   -----END OPENSSH PRIVATE KEY-----s   bcrypts   none
   aes256-ctr   s   (.*?)      c                   @  sF   e Zd ZU ded< ded< ded< ded< ded< d	ed
< ded< dS )
_SSHCipherztype[algorithms.AES]algr   key_lenz3type[modes.CTR] | type[modes.CBC] | type[modes.GCM]mode	block_leniv_len
int | Nonetag_lenr    is_aeadN)__name__
__module____qualname____annotations__r#   r#   r#   r$   r*   \   s   
 r*       )r+   r,   r-   r.   r/   r1   r2      )r&   s
   aes256-cbcs   aes256-gcm@openssh.comzdict[bytes, _SSHCipher]_SSH_CIPHERS)Z	secp256r1Z	secp384r1Z	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$   _get_ssh_key_type   s$   
rM   r@   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_TYPErK   )r@   rO   r#   r#   r$   r?      s   


r?      
datautils.Bufferprefixsuffixc                 C  s   d |t| |gS )N    )join_base64_encode)rS   rU   rV   r#   r#   r$   _ssh_pem_encode   s   rZ   r.   Nonec                 C  s    | r
t | | dkrtddS )zRequire data to be full blocksr   zCorrupt data: missing paddingN)lenrK   )rS   r.   r#   r#   r$   _check_block_size   s   r]   c                 C  s   | rt ddS )z!All data should have been parsed.zCorrupt data: unparsed dataN)rK   rS   r#   r#   r$   _check_empty   s   r_   
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$Generate key + iv and return cipher.z9Key is password-protected, but password was not provided.TN)	TypeErrorr9   r%   r,   r/   r   r+   r-   )r`   r   r   r   ciphseedr#   r#   r$   _init_cipher   s   rf   
memoryviewtuple[int, memoryview]c                 C  6   t | dk r
tdtj| dd dd| dd fS )ZUint32   Invalid dataNbig	byteorderr\   rK   r   
from_bytesr^   r#   r#   r$   _get_u32      "rq   c                 C  ri   )ZUint64   rk   Nrl   rm   ro   r^   r#   r#   r$   _get_u64   rr   rt   tuple[memoryview, memoryview]c                 C  s8   t | \}} |t| krtd| d| | |d fS )zBytes with u32 length prefixrk   N)rq   r\   rK   )rS   nr#   r#   r$   _get_sshstr   s   rw   c                 C  s4   t | \}} |r|d dkrtdt|d| fS )zBig integer.r      rk   rl   )rw   rK   r   rp   )rS   valr#   r#   r$   
_get_mpint   s   rz   ry   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 allowedrW   rs   )rK   
bit_lengthr   Zint_to_bytes)ry   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!   r[   c                 C  s   g | _ |r| j | d S d S N)r   extend)selfr   r#   r#   r$   __init__  s   z_FragList.__init__ry   rT   c                 C  s   | j | dS )zAdd plain bytesN)r   appendr   ry   r#   r#   r$   put_raw     z_FragList.put_rawr   c                 C     | j |jddd dS )zBig-endian uint32rj   rl   lengthrn   Nr   r   to_bytesr   r#   r#   r$   put_u32     z_FragList.put_u32c                 C  r   )zBig-endian uint64rs   rl   r   Nr   r   r#   r#   r$   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   rg   	bytearrayr   r\   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mapr\   r   r   r#   r#   r$   r      r   z_FragList.sizer   dstbufrg   posc                 C  s2   | j D ]}t|}||| }}||||< q|S )zWrite into bytearray)r   r\   )r   r   r   fragZflenstartr#   r#   r$   render$  s
   
z_FragList.renderr   c                 C  s"   t t|  }| | | S )zReturn as bytes)rg   r   r   r   tobytes)r   bufr#   r#   r$   r   ,  s   
z_FragList.tobytesr   )r   r   r!   r[   )ry   rT   r!   r[   )ry   r   r!   r[   )ry   r   r!   r[   r!   r   )r   )r   rg   r   r   r!   r   r!   r   )r3   r4   r5   __doc__r6   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
    rS   rg   r!   "tuple[tuple[int, int], memoryview]c                 C  s$   t |\}}t |\}}||f|fS )zRSA public fieldsrz   )r   rS   erv   r#   r#   r$   
get_public<  s   z_SSHFormatRSA.get_public#tuple[rsa.RSAPublicKey, memoryview]c                 C  s.   |  |\\}}}t||}| }||fS )zMake RSA public key from data.)r   r   RSAPublicNumbersr@   )r   rS   r   rv   public_numbersr@   r#   r#   r$   load_publicD  s   z_SSHFormatRSA.load_publicunsafe_skip_rsa_key_validationr    $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   )rz   rK   r   Zrsa_crt_dmp1Zrsa_crt_dmq1r   ZRSAPrivateNumbersprivate_key)r   rS   	pubfieldsr   rv   r   diqmppqZdmp1Zdmq1r   private_numbersr   r#   r#   r$   load_privateM  s$   z_SSHFormatRSA.load_privater@   rsa.RSAPublicKeyf_pubr~   r[   c                 C  s$   |  }||j ||j dS )zWrite RSA public keyN)r   r   r   rv   )r   r@   r   Zpubnr#   r#   r$   encode_publice  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   rv   r   r   r   r   r   )r   r   r   r   r   r#   r#   r$   encode_privatem  s   z_SSHFormatRSA.encode_privateN)rS   rg   r!   r   )rS   rg   r!   r   )rS   rg   r   r    r!   r   )r@   r   r   r~   r!   r[   )r   r   r   r~   r!   r[   	r3   r4   r5   r   r   r   r   r   r   r#   r#   r#   r$   r   3  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
    rS   rg   r!   tuple[tuple, memoryview]c                 C  s@   t |\}}t |\}}t |\}}t |\}}||||f|fS )zDSA public fieldsr   )r   rS   r   r   gyr#   r#   r$   r     s
   z_SSHFormatDSA.get_public#tuple[dsa.DSAPublicKey, memoryview]c           	      C  sJ   |  |\\}}}}}t|||}t||}| | | }||fS )zMake DSA public key from data.)r   r	   DSAParameterNumbersDSAPublicNumbers	_validater@   )	r   rS   r   r   r   r   parameter_numbersr   r@   r#   r#   r$   r     s   
z_SSHFormatDSA.load_publicr   r    $tuple[dsa.DSAPrivateKey, memoryview]c                 C  sz   |  |\\}}}}}t|\}}||||f|krtdt|||}	t||	}
| |
 t||
}| }||fS )zMake DSA private key from data.z Corrupt data: dsa field mismatch)	r   rz   rK   r	   r   r   r   ZDSAPrivateNumbersr   )r   rS   r   r   r   r   r   r   xr   r   r   r   r#   r#   r$   r     s   
z_SSHFormatDSA.load_privater@   dsa.DSAPublicKeyr   r~   r[   c                 C  sL   |  }|j}| | ||j ||j ||j ||j dS )zWrite DSA public keyN)r   r   r   r   r   r   r   r   )r   r@   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   r@   r   r   r   )r   r   r   r#   r#   r$   r     s   z_SSHFormatDSA.encode_privater   dsa.DSAPublicNumbersc                 C  s    |j }|j dkrtdd S )Ni   z#SSH supports only 1024 bit DSA keys)r   r   r{   rK   )r   r   r   r#   r#   r$   r     s   z_SSHFormatDSA._validateN)rS   rg   r!   r   )rS   rg   r!   r   )rS   rg   r   r    r!   r   )r@   r   r   r~   r!   r[   )r   r   r   r~   r!   r[   )r   r   r!   r[   )
r3   r4   r5   r   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 ))_SSHFormatECDSAzFormat for ECDSA keys.

    Public:
        str curve
        bytes point
    Private:
        str curve
        bytes point
        mpint secret
    ssh_curve_namer   rO   ec.EllipticCurvec                 C  s   || _ || _d S r   )r   rO   )r   r   rO   r#   r#   r$   r     s   
z_SSHFormatECDSA.__init__rS   rg   r!   0tuple[tuple[memoryview, memoryview], memoryview]c                 C  sJ   t |\}}t |\}}|| jkrtd|d dkrtd||f|fS )zECDSA public fieldszCurve name mismatchr   rj   zNeed uncompressed point)rw   r   rK   NotImplementedError)r   rS   rO   pointr#   r#   r$   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
   rA   Zfrom_encoded_pointrO   r   )r   rS   _r   r@   r#   r#   r$   r     s
   
z_SSHFormatECDSA.load_publicr   r    -tuple[ec.EllipticCurvePrivateKey, memoryview]c                 C  sH   |  |\\}}}t|\}}||f|krtdt|| j}||fS )z!Make ECDSA private key from data.z"Corrupt data: ecdsa field mismatch)r   rz   rK   r
   Zderive_private_keyrO   )r   rS   r   r   Z
curve_namer   secretr   r#   r#   r$   r     s   z_SSHFormatECDSA.load_privater@   rN   r   r~   r[   c                 C  s*   | tjtj}|| j || dS )zWrite ECDSA public keyN)public_bytesr   ZX962r   ZUncompressedPointr   r   )r   r@   r   r   r#   r#   r$   r     s
   z_SSHFormatECDSA.encode_publicr   ec.EllipticCurvePrivateKeyr   c                 C  s,   |  }| }| || ||j dS )zWrite ECDSA private keyN)r@   r   r   r   Zprivate_value)r   r   r   r@   r   r#   r#   r$   r     s   z_SSHFormatECDSA.encode_privateN)r   r   rO   r   )rS   rg   r!   r   rS   rg   r!   r   )rS   rg   r   r    r!   r   )r@   rN   r   r~   r!   r[   )r   r   r   r~   r!   r[   )
r3   r4   r5   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
    rS   rg   r!   $tuple[tuple[memoryview], memoryview]c                 C  s   t |\}}|f|fS )zEd25519 public fields)rw   )r   rS   r   r#   r#   r$   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   rI   Zfrom_public_bytesr   )r   rS   r   r@   r#   r#   r$   r     s
   z_SSHFormatEd25519.load_publicr   r    ,tuple[ed25519.Ed25519PrivateKey, memoryview]c           	      C  sb   |  |\\}}t|\}}|dd }|dd }||ks#|f|kr'tdtj|}||fS )z#Make Ed25519 private key from data.Nr7   z$Corrupt data: ed25519 field mismatch)r   rw   rK   r   rH   Zfrom_private_bytes)	r   rS   r   r   r   Zkeypairr   Zpoint2r   r#   r#   r$   r   %  s   z_SSHFormatEd25519.load_privater@   ed25519.Ed25519PublicKeyr   r~   r[   c                 C  s   | tjtj}|| dS )zWrite Ed25519 public keyN)r   r   Rawr   r   )r   r@   r   raw_public_keyr#   r#   r$   r   3  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)r@   Zprivate_bytesr   r   r   r   r   r   r~   r   r   )r   r   r   r@   Zraw_private_keyr   Z	f_keypairr#   r#   r$   r   <  s   z _SSHFormatEd25519.encode_privateN)rS   rg   r!   r   rS   rg   r!   r   )rS   rg   r   r    r!   r   )r@   r   r   r~   r!   r[   )r   r   r   r~   r!   r[   r   r#   r#   r#   r$   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:' ())rw   r   
startswithrK   )rS   Zapplicationr#   r#   r$   load_applicationM  s   r   c                   @  $   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:")
    rS   rg   r!   r   c                 C  &   t t|\}}t|\}}||fS r   )_lookup_kformatrJ   r   r   r   rS   r@   r   r#   r#   r$   r   c     z_SSHFormatSKEd25519.load_publictyping.NoReturnc                 C  r"   )Nz,sk-ssh-ed25519 private keys cannot be loadedr   r   rS   r#   r#   r$   r   k     z_SSHFormatSKEd25519.get_publicNr   rS   rg   r!   r   r3   r4   r5   r   r   r   r#   r#   r#   r$   r   Z  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:")
    rS   rg   r!   r   c                 C  r   r   )r   _ECDSA_NISTP256r   r   r   r#   r#   r$   r   }  r   z_SSHFormatSKECDSA.load_publicr   c                 C  r"   )Nz4sk-ecdsa-sha2-nistp256 private keys cannot be loadedr   r   r#   r#   r$   r     r   z_SSHFormatSKECDSA.get_publicNr   r   r   r#   r#   r#   r$   r   s  s    
	r   s   nistp256s   nistp384s   nistp521rL   c                 C  s4   t | tst|  } | tv rt|  S td| )z"Return valid format or throw errorzUnsupported key type: )r=   r   rg   r   _KEY_FORMATSr   )rL   r#   r#   r$   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$d
t| \}} t|  d}t|| t|\}}t|\}}||kr;tdt|\}}||krJtd|j%|||d\}}t|\}}|t&dt| kritdt |t'j(ryt)j*dt j+dd |S )z.Load private key from OpenSSH custom encoding.rS   Nr   zNot OpenSSH private key formatr(   zOnly one key supportedzUnsupported cipher: zUnsupported KDF: z+Corrupt data: invalid tag length for cipherz4Password was given but private key is not encrypted.rs   zCorrupt data: broken checksumzCorrupt data: key type mismatchr   zCorrupt data: invalid paddingDSSH DSA keys are deprecated and will be removed in a future release.   
stacklevel),r   _check_byteslike_check_bytes_PEM_RCsearchrK   r   endbinascii
a2b_base64rg   r   	_SK_MAGICr\   rw   rq   r   r   r_   _NONEr   r9   r   _BCRYPTr.   r1   r2   r   r]   rf   Z	decryptorupdater=   r   Zfinalize_with_tagfinalizerc   r   _PADDINGr	   rE   warningswarnDeprecatedIn40)rS   r   r   r   mp1Zp2r`   kdfnameZ
kdfoptionsnkeysZpubdataZpub_key_typekformatr   Zciphername_bytesblklenr1   Zedatatagr   Zkbufr   rd   decZck1Zck2rL   r   r   r#   r#   r$   load_ssh_private_key  s   











r  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$|d| S )
z3Serialize private key with OpenSSH custom encoding.r   ISSH DSA key support is deprecated and will be removed in a future releaserj   r   Nr'   rs   r(   rW   )%r   r   r=   r	   rE   r  r  r  rM   r   r~   _DEFAULT_CIPHERr9   r.   r  _DEFAULT_ROUNDSr   Z_kdf_roundsosurandomr   r   rf   r  r   r@   r   r   r
  r   r  rg   r   r   Z	encryptorZupdate_intorZ   )r   r   r  rL   r  Zf_kdfoptionsr`   r  r  r   r   rd   r  ZcheckvalcommentZf_public_keyZ	f_secretsZf_mainslenmlenr   Zofsr#   r#   r$   _serialize_ssh_private_key  sj   
















 r   c                   @  s   e Zd ZdZdZdS )SSHCertificateTyper(   r   N)r3   r4   r5   USERZHOSTr#   r#   r#   r$   r!  w  s    r!  c                   @  s   e Zd Zd9ddZed:ddZd;ddZed<d d!Zed=d#d$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_noncerg   _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)r$  r%  r'  r!  _typerK   r)  r*  r,  r-  r.  r0  r1  r2  r3  r4  r6  r7  r5  )r   r$  r%  r'  r(  r)  r*  r,  r-  r.  r0  r1  r2  r3  r4  r5  r6  r7  r#   r#   r$   r   }  s*   
zSSHCertificate.__init__r!   c                 C  
   t | jS r   )r   r$  r   r#   r#   r$   nonce     
zSSHCertificate.nonceSSHCertPublicKeyTypesc                 C  s   t t| jS r   )typingcastr<  r%  r   r#   r#   r$   r@     s   zSSHCertificate.public_keyc                 C     | j S r   )r'  r   r#   r#   r$   serial     zSSHCertificate.serialr!  c                 C  r?  r   )r8  r   r#   r#   r$   type  rA  zSSHCertificate.typec                 C  r9  r   )r   r)  r   r#   r#   r$   key_id  r;  zSSHCertificate.key_idc                 C  r?  r   )r*  r   r#   r#   r$   valid_principals  rA  zSSHCertificate.valid_principalsc                 C  r?  r   )r-  r   r#   r#   r$   valid_before  rA  zSSHCertificate.valid_beforec                 C  r?  r   )r,  r   r#   r#   r$   valid_after  rA  zSSHCertificate.valid_afterc                 C  r?  r   )r.  r   r#   r#   r$   critical_options  rA  zSSHCertificate.critical_optionsc                 C  r?  r   )r0  r   r#   r#   r$   
extensions  rA  zSSHCertificate.extensionsc                 C  s&   t | j}|| j\}}t| |S r   )r   r1  r   r2  r_   )r   Z	sigformatsignature_keyZsigkey_restr#   r#   r$   rI    s   
zSSHCertificate.signature_keyc                 C  s"   t | jd tjt | jdd S )N    F)newline)r   r6  r  
b2a_base64r7  r   r#   r#   r$   r     s   zSSHCertificate.public_bytesr[   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   )rI  r=   r   rI   verifyr   r4  r5  r
   rA   rz   r_   
asym_utilsZencode_dss_signature_get_ec_hash_algrO   ECDSAr   rC   r3  rD   r   SHA1_SSH_RSA_SHA256SHA256_SSH_RSA_SHA512SHA512r   PKCS1v15)r   rI  rrS   sZcomputed_sighash_algr#   r#   r$   verify_cert_signature  s6   




z$SSHCertificate.verify_cert_signatureN)"r$  rg   r%  r&  r'  r   r(  r   r)  rg   r*  r+  r,  r   r-  r   r.  r/  r0  r/  r1  rg   r2  rg   r3  rg   r4  rg   r5  rg   r6  r   r7  rg   r   )r!   r<  r   )r!   r!  )r!   r+  )r!   r/  )r!   r[   )r3   r4   r5   r   propertyr:  r@   r@  rB  rC  rD  rE  rF  rG  rH  rI  r   rZ  r#   r#   r#   r$   r#  |  s0    
)


r#  rO   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   rS  	SECP384R1SHA384	SECP521R1rU  )rO   r#   r#   r$   rO    s   rO  "SSHCertificate | SSHPublicKeyTypesc           "      C  sp  t d|  t| }|std|d }}|d}d}|tr/d}|d tt  }|t	kr9|s9t
dt|}z	tt|}W n ttjfyT   tdw |rY|}	t|\}
}|
|krgtd	|rot|\}}||\}}|r2t|\}}t|\}}t|\}}t|\}}g }|rt|\}}|t| |st|\}}t|\}}t|\}}t|}t|\}}t|}t|\}}t|\}}t|\}}|t	kr|st
d
|	d t|  }t|\}}t| t|\}} |tkr|tttfvs|tkr||krtdt| \}!} t|  t||||||||||||||!|||	S t| |S )NrS   zInvalid line formatr(   r   FTz-DSA keys aren't supported in SSH certificateszInvalid formatzInvalid key formatz3DSA signatures aren't supported in SSH certificatesz!Signature key type does not match)r   r   _SSH_PUBKEY_RCmatchrK   groupendswith_CERT_SUFFIXr\   rG   r   r   rg   r  r  rc   Errorrw   r   rt   rq   r   r   _parse_exts_optsr_   rD   rR  rT  r#  )"rS   _legacy_dsa_allowedr  rL   Zorig_key_typeZkey_bodyZ	with_certr  restZ	cert_bodyZinner_key_typer:  r@   r@  ZcctyperC  Z
principalsrD  Z	principalrF  rE  Zcrit_optionsrG  extsrH  r   Zsig_key_rawZsig_typeZsig_keyZtbs_cert_bodyZsignature_rawZinner_sig_typeZsig_rest	signaturer#   r#   r$   _load_ssh_public_identity  s   



rm  c                 C  s   t | S r   )rm  r^   r#   r#   r$   load_ssh_public_identityf  s   rn  	exts_optsr/  c                 C  s   i }d }| rJt | \}} t|}||v rtd|d ur$||k r$tdt | \}} t|dkr@t |\}}t|dkr@tdt|||< |}| s|S )NzDuplicate namezFields not lexically sortedr   z!Unexpected extra data after value)rw   r   rK   r\   )ro  result	last_namerP   Zbnamevalueextrar#   r#   r$   rh  l  s$   rh  r&  hash_algorithmhashes.MD5 | hashes.SHA256c                 C  sj   t |tjtjfstdt| }t|}t }|| |	| | |
 }t|}|| | S )Nz+hash_algorithm must be either MD5 or SHA256)r=   r   MD5rS  rc   rM   r   r~   r   r   r   ZHashr  r	  )r:   rt  rL   r  r   Zssh_binary_dataZhash_objr#   r#   r$   ssh_key_fingerprint  s   


rw  c                 C  sF   t | dd}t|tr| }n|}t|tjr!tjdtj	dd |S )NT)ri  r   r   r   )
rm  r=   r#  r@   r	   rF   r  r  r   r  )rS   r   Zcert_or_keyr@   r#   r#   r$   load_ssh_public_key  s   

rx  c                 C  sl   t | tjrtjdtjdd t| }t|}t	 }|
| || | t|  }d|d|gS )z&One-line public key format for OpenSSHr  rj   r   rW   rJ  )r=   r	   rF   r  r  r   r  rM   r   r~   r   r   r  rL  r   striprX   )r@   rL   r  r   Zpubr#   r#   r$   serialize_ssh_public_key  s   
rz     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SSHCertificateBuilderNFr%  SSHCertPublicKeyTypes | Noner'  r0   r8  SSHCertificateType | Noner)  ra   r*  r+  _valid_for_all_principalsr    r-  r,  r.  list[tuple[bytes, bytes]]r0  c                 C  s@   || _ || _|| _|| _|| _|| _|| _|| _|	| _|
| _	d S r   
r%  r'  r8  r)  r*  r  r-  r,  r.  r0  )r   r%  r'  r8  r)  r*  r  r-  r,  r.  r0  r#   r#   r$   r     s   
zSSHCertificateBuilder.__init__r@   r<  r!   c                 C  s^   t |tjtjtjfstd| jd urt	dt
|| j| j| j| j| j| j| j| j| jd
S )Nr<   zpublic_key already setr  )r=   r
   rA   r   rC   r   rI   rc   r%  rK   r|  r'  r8  r)  r*  r  r-  r,  r.  r0  )r   r@   r#   r#   r$   r@     s,   
z SSHCertificateBuilder.public_keyr@  r   c                 C  sv   t |ts	tdd|  krdk std td| jd ur$tdt| j|| j| j| j	| j
| j| j| j| jd
S )Nzserial must be an integerr               z"serial must be between 0 and 2**64zserial already setr  )r=   r   rc   rK   r'  r|  r%  r8  r)  r*  r  r-  r,  r.  r0  )r   r@  r#   r#   r$   r@    s(   

zSSHCertificateBuilder.serialrB  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"type must be an SSHCertificateTypeztype already setr  )r=   r!  rc   r8  rK   r|  r%  r'  r)  r*  r  r-  r,  r.  r0  )r   rB  r#   r#   r$   rB    s    

zSSHCertificateBuilder.typerC  r   c                 C  sR   t |ts	td| jd urtdt| j| j| j|| j	| j
| j| j| j| jd
S )Nzkey_id must be byteszkey_id already setr  )r=   r   rc   r)  rK   r|  r%  r'  r8  r*  r  r-  r,  r.  r0  )r   rC  r#   r#   r$   rC  '  s    

zSSHCertificateBuilder.key_idrD  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$   	<genexpr>C  s    z9SSHCertificateBuilder.valid_principals.<locals>.<genexpr>z5principals must be a list of bytes and can't be emptyzvalid_principals already setz:Reached or exceeded the maximum number of valid_principalsr  )r  rK   allrc   r*  r\   _SSHKEY_CERT_MAX_PRINCIPALSr|  r%  r'  r8  r)  r-  r,  r.  r0  )r   rD  r#   r#   r$   rD  :  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$valid_for_all_principals already setTr  )r*  rK   r  r|  r%  r'  r8  r)  r-  r,  r.  r0  r   r#   r#   r$   valid_for_all_principals^  s$   z.SSHCertificateBuilder.valid_for_all_principalsrE  int | floatc                 C  sv   t |ttfstdt|}|dk s|dkrtd| jd ur$tdt| j| j| j	| j
| j| j|| j| j| jd
S )Nz$valid_before must be an int or floatr   r  zvalid_before must [0, 2**64)zvalid_before already setr  )r=   r   floatrc   rK   r-  r|  r%  r'  r8  r)  r*  r  r,  r.  r0  )r   rE  r#   r#   r$   rE  t  s&   
z"SSHCertificateBuilder.valid_beforerF  c                 C  sv   t |ttfstdt|}|dk s|dkrtd| jd ur$tdt| j| j| j	| j
| j| j| j|| j| jd
S )Nz#valid_after must be an int or floatr   r  zvalid_after must [0, 2**64)zvalid_after already setr  )r=   r   r  rc   rK   r,  r|  r%  r'  r8  r)  r*  r  r-  r.  r0  )r   rF  r#   r#   r$   rF    s&   
z!SSHCertificateBuilder.valid_afterrP   rr  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  rP   r   r#   r#   r$   
<listcomp>      z=SSHCertificateBuilder.add_critical_option.<locals>.<listcomp>zDuplicate critical option namer  )r=   r   rc   r.  rK   r|  r%  r'  r8  r)  r*  r  r-  r,  r0  r   rP   rr  r#   r#   r$   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$   r    r  z7SSHCertificateBuilder.add_extension.<locals>.<listcomp>zDuplicate extension namer  )r=   r   rc   r0  rK   r|  r%  r'  r8  r)  r*  r  r-  r,  r.  r  r#   r#   r$   add_extension  s    z#SSHCertificateBuilder.add_extensionr   SSHCertPrivateKeyTypesr#  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 setrW   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  r7   rJ  )6r=   r
   r>   r   rB   r   rH   rc   r%  rK   r'  r8  r)  r*  r  r-  r,  r.  sortr0  rM   rf  r  r  r   r~   r   r   r   r   rr  r   r\   r@   signrO  rO   rP  rN  Zdecode_dss_signaturer   rT  r   rV  r   rU  r  rL  ry  r=  r>  r#  rn  rX   )r   r   r@  rC  rL   Zcert_prefixr:  r  fZfprincipalsr   ZfcritrP   rr  ZfoptvalZfextZfextvalZca_typeZcaformatZcafrl  ZfsigrY  rW  rX  ZfsigblobZ	cert_datar#   r#   r$   r    s   
























zSSHCertificateBuilder.sign)r%  r}  r'  r0   r8  r~  r)  ra   r*  r+  r  r    r-  r0   r,  r0   r.  r  r0  r  )r@   r<  r!   r|  )r@  r   r!   r|  )rB  r!  r!   r|  )rC  r   r!   r|  )rD  r+  r!   r|  )rE  r  r!   r|  )rF  r  r!   r|  )rP   r   rr  r   r!   r|  )r   r  r!   r#  )r3   r4   r5   r   r@   r@  rB  rC  rD  r  rE  rF  r  r  r  r#   r#   r#   r$   r|    s.    


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r|  )F)r   r   r   r   r   r   r   r   r   r    r!   r   )r:   r;   r!   r   )r@   rN   r!   r   )rS   rT   rU   r   rV   r   r!   r   )rS   rT   r.   r   r!   r[   )rS   rT   r!   r[   )
r`   r   r   ra   r   r   r   r   r!   rb   )rS   rg   r!   rh   )rS   rg   r!   ru   )ry   r   r!   r   )r!   ru   )rL   rT   r   )
rS   rT   r   ra   r   r   r   r    r!   r   )r   r   r   r   r  r   r!   r   )rO   r   r!   r\  )rS   rT   r!   ra  )ro  rg   r!   r/  )r:   r&  rt  ru  r!   r   )rS   rT   r   r   r!   r&  )r@   r&  r!   r   )
__future__r   r  enumr  rer=  r  base64r   rY   dataclassesr   Zcryptographyr   Zcryptography.exceptionsr   Zcryptography.hazmat.primitivesr   Z)cryptography.hazmat.primitives.asymmetricr	   r
   r   r   r   rN  Z&cryptography.hazmat.primitives.ciphersr   r   r   r   Z,cryptography.hazmat.primitives.serializationr   r   r   r   r   r   Zbcryptr   r%   Z_bcrypt_supportedImportErrorrJ   rD   rG   r   Z_ECDSA_NISTP384Z_ECDSA_NISTP521rf  Z_SK_SSH_ED25519Z_SK_SSH_ECDSA_NISTP256rR  rT  compilerb  r  Z	_SK_STARTZ_SK_ENDr  r  r  r  DOTALLr   rg   r   ranger
  r*   ZAESZCTRZCBCZGCMr9   r6   rQ   rM   r?   rZ   r]   r_   rf   rq   rt   rw   rz   r}   r~   r   r   r   r   r   r   r   r]  r^  r`  r   r   Unionr>   rB   rE   rH   r   r  r   rA   rC   rF   rI   r&  r<  Enumr!  r#  rO  rm  rn  rh  rw  rx  rz  r  r  r|  r#   r#   r#   r$   <module>   s6   	
		 

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6JFG
C
	
rM 

_


	