crypto.py 文件源码

def load_public_key(pubkey_file):
    ''' 
    Loads the public key stored in the file indicated by the pubkey_file
    parameter and returns it

    The `pubkey_file` parameter indicates the absolute path to the file
    storing the public key.

    The key returned is a RSAPublicKey instance.
    '''
    with open(pubkey_file, "rb") as key_file:
        pubkey = serialization.load_ssh_public_key(
            key_file.read(),
            backend=default_backend()
        )
    return pubkey