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o �)%aW � @ s. d dl Z d dlZd dlZd dlZd dlZd dlmZ d dlm Z d dl m Z d dl m Z d dlmZmZmZmZ d dlmZmZmZ d dlmZmZmZmZ z d d l m Z d Z W n e yv d Z d[d e!d e!de"de"de#de!f dd�Z Y nw dZ$dZ%dZ&dZ'dZ(dZ)dZ*e�+d�Z,d Z-d Z.d Z/d Z0d Z1d!Z2d"Z3d#Z4e�+e.d$ e/ ej5�Z6e7e8e9d%d&���Z:ej;d'ej<d"fej;d'ej=d"fd(�Z>e'e(e)d)�Z?e�@d*�ZAe�@d+�ZBd,d-� ZCe.d. e/d. fd/d0�ZDd1d2� ZEd3d4� ZFd5d6� ZGd7d8� ZHd9d:� ZId;d<� ZJd=d>� ZKd?d@� ZLG dAdB� dBeM�ZNG dCdD� dDeM�ZOG dEdF� dFeM�ZPG dGdH� dHeM�ZQG dIdJ� dJeM�ZRe%eO� e&eP� e$eR� e'eQdKe�S� �e(eQdLe�T� �e)eQdMe�U� �iZVdNdO� ZWejXejYejZej[ej\f Z] d\dPe!d ej^e! de]fdQdR�Z_ d\dSe]d ej^e! fdTdU�Z`ejXejaejbejcejdf Zed\dPe!deefdVdW�ZfdXeede!fdYdZ�ZgdS )]� N)� encodebytes)�utils��UnsupportedAlgorithm)� _get_backend)�dsa�ec�ed25519�rsa)�Cipher� algorithms�modes)�Encoding� NoEncryption� PrivateFormat� PublicFormat)�kdfTF�password�salt�desired_key_bytes�rounds�ignore_few_rounds�returnc C s t d��)NzNeed bcrypt moduler )r r r r r � r �R/usr/lib/python3/dist-packages/cryptography/hazmat/primitives/serialization/ssh.py� _bcrypt_kdf s r s ssh-ed25519s ssh-rsas ssh-dsss ecdsa-sha2-nistp256s ecdsa-sha2-nistp384s ecdsa-sha2-nistp521s -cert-v01@openssh.coms \A(\S+)[ \t]+(\S+)s openssh-key-v1 s# -----BEGIN OPENSSH PRIVATE KEY-----s! -----END OPENSSH PRIVATE KEY-----s bcrypts none� aes256-ctr� �H s (.*?)� � � )r s aes256-cbc)� secp256r1� secp384r1� secp521r1s >Is >Qc C s( | j }|jtvrtd|j ��t|j S )z3Return SSH key_type and curve_name for private key.z)Unsupported curve for ssh private key: %r)�curve�name�_ECDSA_KEY_TYPE� ValueError)� public_keyr% r r r �_ecdsa_key_typeS s � r* � c C s d� |t| �|g�S )N� )�join�_base64_encode)�data�prefix�suffixr r r �_ssh_pem_encode] s r2 c C s | r t | �| dkrtd��dS )z Require data to be full blocksr z Corrupt data: missing paddingN)�lenr( )r/ � block_lenr r r �_check_block_sizea s �r5 c C s | rt d��dS )z!All data should have been parsed.zCorrupt data: unparsed dataN)r( �r/ r r r � _check_emptyg s �r7 c C sT |st d��t| \}}}}t|||| |d�} t|| d|� �|| |d� �|�S )z$Generate key + iv and return cipher.zKey is password-protected.TN)r( � _SSH_CIPHERSr r ) � ciphernamer r r �backend�algo�key_len�mode�iv_len�seedr r r � _init_cipherm s $r@ c C �6 t | �dk r td��t�| dd� �d | dd� fS )�Uint32� � Invalid dataNr )r3 r( �_U32�unpackr6 r r r �_get_u32w � "rG c C rA )�Uint64� rD Nr )r3 r( �_U64rF r6 r r r �_get_u64~ rH rL c C s8 t | �\}} |t| �krtd��| d|� | |d� fS )z Bytes with u32 length prefixrD N)rG r3 r( )r/ �nr r r � _get_sshstr� s rN c C s4 t | �\}} |r|d dkrtd��t�|d�| fS )z Big integer.r � rD �big)rN r( �int� from_bytes)r/ �valr r r � _get_mpint� s rT c C s4 | dk rt d��| s dS | �� d d }t�| |�S )z!Storage format for signed bigint.r znegative mpint not allowedr, rJ )r( � bit_lengthr � int_to_bytes)rS �nbytesr r r � _to_mpint� s rX c @ sT e Zd ZdZddd�Zdd� Zdd� Zd d � Zd d � Zd d� Z ddd�Z dd� Z dS )� _FragListz,Build recursive structure without data copy.Nc C s g | _ |r | j �|� d S d S �N)�flist�extend)�self�initr r r �__init__� s �z_FragList.__init__c C s | j �|� dS )zAdd plain bytesN)r[ �append�r] rS r r r �put_raw� � z_FragList.put_rawc C s | j �t�|�� dS )zBig-endian uint32N)r[ r` rE �packra r r r �put_u32� s z_FragList.put_u32c C sN t |tttf�r| �t|�� | j�|� dS | �|�� � | j� |j� dS )z Bytes prefixed with u32 lengthN) � isinstance�bytes� memoryview� bytearrayre r3 r[ r` �sizer\ ra r r r � put_sshstr� s z_FragList.put_sshstrc C s | � t|�� dS )z*Big-endian bigint prefixed with u32 lengthN)rk rX ra r r r � put_mpint� s z_FragList.put_mpintc C s t tt| j��S )zCurrent number of bytes)�sum�mapr3 r[ )r] r r r rj � rc z_FragList.sizer c C s2 | j D ]}t|�}||| }}||||�< q|S )zWrite into bytearray)r[ r3 )r] �dstbuf�pos�frag�flen�startr r r �render� s z_FragList.renderc C s" t t| �� ��}| �|� |�� S )zReturn as bytes)rh ri rj rt �tobytes)r] �bufr r r ru � s z_FragList.tobytesrZ )r ) �__name__� __module__� __qualname__�__doc__r_ rb re rk rl rj rt ru r r r r rY � s rY c @ �8 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd S ) � _SSHFormatRSAzhFormat for RSA keys. Public: mpint e, n Private: mpint n, e, d, iqmp, p, q c C s$ t |�\}}t |�\}}||f|fS )zRSA public fields�rT )r] r/ �erM r r r � get_public� s z_SSHFormatRSA.get_publicc C s0 | � |�\\}}}t�||�}|�|�}||fS )z Make RSA public key from data.)r r �RSAPublicNumbersr) )r] �key_typer/ r: r~ rM �public_numbersr) r r r � load_public� s z_SSHFormatRSA.load_publicc C s� t |�\}}t |�\}}t |�\}}t |�\}}t |�\}}t |�\} }||f|kr.td��t�||�} t�|| �} t�||�} t�|| || | || �} | �|�}||fS )z Make RSA private key from data.z Corrupt data: rsa field mismatch)rT r( r � rsa_crt_dmp1� rsa_crt_dmq1r� �RSAPrivateNumbers� private_key)r] r/ � pubfieldsr: rM r~ �d�iqmp�p�q�dmp1�dmq1r� �private_numbersr� r r r � load_private� s � z_SSHFormatRSA.load_privatec C s$ |� � }|�|j� |�|j� dS )zWrite RSA public keyN)r� rl r~ rM )r] r) �f_pub�pubnr r r � encode_public� s z_SSHFormatRSA.encode_publicc C sZ |� � }|j}|�|j� |�|j� |�|j� |�|j� |�|j� |�|j� dS )zWrite RSA private keyN) r� r� rl rM r~ r� r� r� r� )r] r� �f_privr� r� r r r �encode_private� s z _SSHFormatRSA.encode_privateN� rw rx ry rz r r� r� r� r� r r r r r| � s r| c @ �@ e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dS )� _SSHFormatDSAzhFormat for DSA keys. Public: mpint p, q, g, y Private: mpint p, q, g, y, x c C s@ t |�\}}t |�\}}t |�\}}t |�\}}||||f|fS )zDSA public fieldsr} )r] r/ r� r� �g�yr r r r s z_SSHFormatDSA.get_publicc C sL | � |�\\}}}}}t�|||�}t�||�} | �| � | �|�} | |fS )z Make DSA public key from data.)r r �DSAParameterNumbers�DSAPublicNumbers� _validater) ) r] r� r/ r: r� r� r� r� �parameter_numbersr� r) r r r r� s z_SSHFormatDSA.load_publicc C s| | � |�\\}}}}}t|�\}}||||f|kr td��t�|||�} t�|| �} | �| � t�|| �} | �|�} | |fS )z Make DSA private key from data.z Corrupt data: dsa field mismatch) r rT r( r r� r� r� �DSAPrivateNumbersr� ) r] r/ r� r: r� r� r� r� �xr� r� r� r� r r r r� ' s z_SSHFormatDSA.load_privatec C sL |� � }|j}| �|� |�|j� |�|j� |�|j� |�|j� dS )zWrite DSA public keyN)r� r� r� rl r� r� r� r� )r] r) r� r� r� r r r r� 5 s z_SSHFormatDSA.encode_publicc C s$ | � |�� |� |�|�� j� dS )zWrite DSA private keyN)r� r) rl r� r� )r] r� r� r r r r� @ s z _SSHFormatDSA.encode_privatec C s |j }|j�� dkrtd��d S )Ni z#SSH supports only 1024 bit DSA keys)r� r� rU r( )r] r� r� r r r r� E s �z_SSHFormatDSA._validateN) rw rx ry rz r r� r� r� r� r� r r r r r� s r� c @ r� )�_SSHFormatECDSAz�Format for ECDSA keys. Public: str curve bytes point Private: str curve bytes point mpint secret c C s || _ || _d S rZ )�ssh_curve_namer% )r] r� r% r r r r_ W s z_SSHFormatECDSA.__init__c C sJ t |�\}}t |�\}}|| jkrtd��|d dkr td��||f|fS )zECDSA public fieldszCurve name mismatchr rC zNeed uncompressed point)rN r� r( �NotImplementedError)r] r/ r% �pointr r r r [ s z_SSHFormatECDSA.get_publicc C s. | � |�\\}}}tj�| j|�� �}||fS )z Make ECDSA public key from data.)r r �EllipticCurvePublicKey�from_encoded_pointr% ru )r] r� r/ r: � curve_namer� r) r r r r� e s �z_SSHFormatECDSA.load_publicc C sJ | � |�\\}}}t|�\}}||f|krtd��t�|| j|�}||fS )z!Make ECDSA private key from data.z"Corrupt data: ecdsa field mismatch)r rT r( r �derive_private_keyr% )r] r/ r� r: r� r� �secretr� r r r r� m s z _SSHFormatECDSA.load_privatec C s* |� tjtj�}|�| j� |�|� dS )zWrite ECDSA public keyN)� public_bytesr �X962r �UncompressedPointrk r� )r] r) r� r� r r r r� w s � z _SSHFormatECDSA.encode_publicc C s, |� � }|�� }| �||� |�|j� dS )zWrite ECDSA private keyN)r) r� r� rl � private_value)r] r� r� r) r� r r r r� s z _SSHFormatECDSA.encode_privateN) rw rx ry rz r_ r r� r� r� r� r r r r r� K s r� c @ r{ ) �_SSHFormatEd25519z~Format for Ed25519 keys. Public: bytes point Private: bytes point bytes secret_and_point c C s t |�\}}|f|fS )zEd25519 public fields)rN )r] r/ r� r r r r � s z _SSHFormatEd25519.get_publicc C s( | � |�\\}}tj�|�� �}||fS )z"Make Ed25519 public key from data.)r r �Ed25519PublicKey�from_public_bytesru )r] r� r/ r: r� r) r r r r� � s �z _SSHFormatEd25519.load_publicc C sb | � |�\\}}t|�\}}|dd� }|dd� }||ks#|f|kr'td��tj�|�}||fS )z#Make Ed25519 private key from data.Nr! z$Corrupt data: ed25519 field mismatch)r rN r( r �Ed25519PrivateKey�from_private_bytes) r] r/ r� r: r� �keypairr� �point2r� r r r r� � s z _SSHFormatEd25519.load_privatec C s |� tjtj�}|�|� dS )zWrite Ed25519 public keyN)r� r �Rawr rk )r] r) r� �raw_public_keyr r r r� � s �z _SSHFormatEd25519.encode_publicc C sR |� � }|�tjtjt� �}|�tjtj�}t||g�}| � ||� |� |� dS )zWrite Ed25519 private keyN) r) � private_bytesr r� r r r� r rY r� rk )r] r� r� r) �raw_private_keyr� � f_keypairr r r r� � s �� z _SSHFormatEd25519.encode_privateNr� r r r r r� � s r� s nistp256s nistp384s nistp521c C s2 t | t�s t| ��� } | tv rt| S td| ��)z"Return valid format or throw errorzUnsupported key type: %r)rf rg rh ru � _KEY_FORMATSr )r� r r r �_lookup_kformat� s r� r/ c C sJ t �d| � t|�}|durt �d|� t�| �}|s td��|�d�}|�d�}t � t | �||� �} | � t �s=td��t | �tt �d� } t| �\}} t| �\}} t| �\}} t| �\} } | dkrgtd��t| �\} } t| �\} } t| �} | �| �\} } t| � t| �\}} t| � ||fttfkr�|�� }|tvr�td| ��|tkr�td| ��t| d }t||� t|�\}}t|�\}}t|� t|||�� ||�}t |�� � |��}nd }t||� t|�\}}t|�\}}||kr�td ��t|�\}}|| k�rtd ��| � || |�\}}t|�\}}|t dt|�� k�r#td ��|S )z.Load private key from OpenSSH custom encoding.r/ Nr z Not OpenSSH private key formatr zOnly one key supportedzUnsupported cipher: %rzUnsupported KDF: %r� rJ z Corrupt data: broken checksumz Corrupt data: key type mismatchz Corrupt data: invalid padding) r �_check_bytesliker � _check_bytes�_PEM_RC�searchr( rs �end�binascii� a2b_base64rh � startswith� _SK_MAGICr3 rN rG r� r r7 �_NONEru r8 r �_BCRYPTr5 r@ � decryptor�updater� �_PADDING)r/ r r: �m�p1�p2r9 �kdfname� kdfoptions�nkeys�pubdata� pub_key_type�kformatr� �edata�blklenr �kbufr �ciph�ck1�ck2r� r� �commentr r r �load_ssh_private_key� sn � r� r� c C s> |dur t �d|� |rt|�tkrtd��t| tj�r#t| � � �}n t| t j �r,t }nt| t j�r5t}n t| tj�r>t}ntd��t|�}t� }|rst}t| d }t}t}t�d�} |�| � |� |� t d�} t ||| || �} nt }}d}d} d} t�d �} d }t� }|�|� |� | � � |� t| | g�}|�|� |�!| |� |�|� |�"t#d||�$� | � � t� }|�"t%� |�|� |�|� |�|� |� | � |�|� |�|� |�$� }|�$� }t&t'|| ��}|�(|� || }| du�r | �)� �*|||� ||d� � t+|d|� �}t'|�|||�< |S ) z3Serialize private key with OpenSSH custom encoding.Nr zNPasswords longer than 72 bytes are not supported by OpenSSH private key format�Unsupported key typer� r rJ r rC r, ),r r� r3 � _MAX_PASSWORDr( rf r �EllipticCurvePrivateKeyr* r) r � RSAPrivateKey�_SSH_RSAr � DSAPrivateKey�_SSH_DSAr r� � _SSH_ED25519r� rY �_DEFAULT_CIPHERr8 r� �_DEFAULT_ROUNDS�os�urandomrk re r r@ r� r� r� rb r� rj r� rh ri rt � encryptor� update_intor2 )r� r r� r� � f_kdfoptionsr9 r� r� r r r: r� r� �checkvalr� � f_public_key� f_secrets�f_main�slen�mlenrv �ofs�txtr r r �serialize_ssh_private_key( sv � r� c C s| t |�}t�d| � t�| �}|std��|�d� }}|�d�}d}t|tt� d� kr9d}|dtt� � }t |�}z t t � |��} W n t t jfyT td��w t| �\}} ||krctd��|rkt| �\} } |�|| |�\} } |r�t| �\} } t| �\} } t| �\} } t| �\}} t| �\}} t| �\}} t| �\}} t| �\}} t| �\}} t| �\}} t| �\}} t| � | S ) z-Load public key from OpenSSH one-line format.r/ zInvalid line formatr � FNTzInvalid key format)r r r� �_SSH_PUBKEY_RC�matchr( �group� _CERT_SUFFIXr3 r� rh r� r� � TypeError�ErrorrN r� rL rG r7 )r/ r: r� r� � orig_key_type�key_body� with_certr� �inner_key_type�noncer) �serial�cctype�key_id� principals� valid_after� valid_before� crit_options� extensions�reserved�sig_key� signaturer r r �load_ssh_public_key� sJ � r r) c C s� t | tj�r t| �}n t | tj�rt}nt | tj�r t }n t | t j �r&t }nt d��t|�}t� }|�|� |�| |� t�|�� ��� }d�|d|g�S )z&One-line public key format for OpenSSHr� r, � )rf r r� r* r � RSAPublicKeyr� r � DSAPublicKeyr� r r� r� r( r� rY rk r� r� � b2a_base64ru �stripr- )r) r� r� r� �pubr r r �serialize_ssh_public_key� s r )FrZ )hr� r� �re�struct�typing�base64r r. � cryptographyr �cryptography.exceptionsr � cryptography.hazmat.backendsr �)cryptography.hazmat.primitives.asymmetricr r r r �&cryptography.hazmat.primitives.ciphersr r r �,cryptography.hazmat.primitives.serializationr r r r �bcryptr r �_bcrypt_supported� ImportErrorrg rQ �boolr� r� r� �_ECDSA_NISTP256�_ECDSA_NISTP384�_ECDSA_NISTP521r� �compiler� r� � _SK_START�_SK_ENDr� r� r� r� r� �DOTALLr� rh ri �ranger� �AES�CTR�CBCr8 r' �StructrE rK r* r2 r5 r7 r@ rG rL rN rT rX �objectrY r| r� r� r� � SECP256R1� SECP384R1� SECP521R1r� r� �Unionr� r� r� r� �_SSH_PRIVATE_KEY_TYPES�Optionalr� r� r� r r r� �_SSH_PUBLIC_KEY_TYPESr r r r r r �<module> s� �������� �� 0>>=:� �� ��� �N�� �U��+
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