Edit File: ed448.cpython-36.pyc
3 y�_� � @ s� d dl mZmZmZ d dlmZmZ d dlmZ d dl m Z m Z dZ dZ eje �G dd� de��Zeje �G d d � d e��Zd S ) � )�absolute_import�division�print_function)� exceptions�utils)� serialization)�Ed448PrivateKey�Ed448PublicKey�9 �r c @ s, e Zd Zdd� Zdd� Zdd� Zdd� Zd S ) �_Ed448PublicKeyc C s || _ || _d S )N)�_backend� _evp_pkey)�self�backend�evp_pkey� r � /usr/lib64/python3.6/ed448.py�__init__ s z_Ed448PublicKey.__init__c C sV |t jjks|t jjkr@|t jjk s0|t jjk r8td��| j� S | jj||| | jd �S )Nz3When using Raw both encoding and format must be Raw) r �Encoding�Raw� PublicFormat� ValueError�_raw_public_bytesr Z_public_key_bytesr )r �encoding�formatr r r � public_bytes s z _Ed448PublicKey.public_bytesc C sp | j jjdt�}| j jjdt�}| j jj| j||�}| j j|dk� | j j|d tk� | j jj|t�d d � S )Nzunsigned char []zsize_t *� r ) r �_ffi�new�_ED448_KEY_SIZE�_lib�EVP_PKEY_get_raw_public_keyr �openssl_assert�buffer)r �buf�buflen�resr r r r + s z!_Ed448PublicKey._raw_public_bytesc C s� | j jj� }| j j|| j jjk� | j jj|| j jj�}| j jj|| j jj| j jj| j jj| j �}| j j|dk� | j jj ||t |�|t |��}|dkr�| j j � t j�d S )Nr )r r! �Cryptography_EVP_MD_CTX_newr# r �NULL�gc� Cryptography_EVP_MD_CTX_freeZEVP_DigestVerifyInitr ZEVP_DigestVerify�lenZ_consume_errorsr ZInvalidSignature)r Z signature�data� evp_md_ctxr' r r r �verify5 s z_Ed448PublicKey.verifyN)�__name__� __module__� __qualname__r r r r/ r r r r r s r c @ s4 e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd S ) �_Ed448PrivateKeyc C s || _ || _d S )N)r r )r r r r r r r M s z_Ed448PrivateKey.__init__c C sz | j jjdt�}| j jjdt�}| j jj| j||�}| j j|dk� | j j|d tk� | j jj|�d d � }| j j |�S )Nzunsigned char []zsize_t *r r ) r r r r r! r" r r# r$ Zed448_load_public_bytes)r r% r& r' r r r r � public_keyQ s z_Ed448PrivateKey.public_keyc C s� | j jj� }| j j|| j jjk� | j jj|| j jj�}| j jj|| j jj| j jj| j jj| j �}| j j|dk� | j jj dt �}| j jj dt |��}| j jj ||||t |��}| j j|dk� | j j|d t k� | j jj||d �d d � S )Nr zunsigned char[]zsize_t *r )r r! r( r# r r) r* r+ ZEVP_DigestSignInitr r �_ED448_SIG_SIZEr, ZEVP_DigestSignr$ )r r- r. r' r% r& r r r �sign\ s$ z_Ed448PrivateKey.signc C sf |t jjks|t jjkrN|t jjk s>|t jjk s>t|t j� rFtd��| j� S | j j |||| | j d �S )NzcWhen using Raw both encoding and format must be Raw and encryption_algorithm must be NoEncryption()) r r r r Z PrivateFormat� isinstanceZ NoEncryptionr �_raw_private_bytesr Z_private_key_bytesr )r r r Zencryption_algorithmr r r � private_bytess s z _Ed448PrivateKey.private_bytesc C sp | j jjdt�}| j jjdt�}| j jj| j||�}| j j|dk� | j j|d tk� | j jj|t�d d � S )Nzunsigned char []zsize_t *r r ) r r r r r! Z EVP_PKEY_get_raw_private_keyr r# r$ )r r% r& r' r r r r8 � s z#_Ed448PrivateKey._raw_private_bytesN)r0 r1 r2 r r4 r6 r9 r8 r r r r r3 K s r3 N)Z __future__r r r Z cryptographyr r Z cryptography.hazmat.primitivesr Z/cryptography.hazmat.primitives.asymmetric.ed448r r r r5 Zregister_interface�objectr r3 r r r r �<module> s 8
Back to File Manager