crypto.py 文件源码

def crypt_bytes_key(key_bytes,
                    data_bytes,
                    is_encrypt_flag=None,
                    iv_bytes=None,
                    algorithm=ciphers_algorithms.AES,
                    mode=ciphers_modes.CTR):
    '''
    Use symmetric key encryption to encrypt or decrypt data_bytes with
    key_bytes.
    Returns the crypted data_bytes.
    See crypt_create() and crypt_bytes_context() for details.
    '''
    crypt_context = crypt_create(key_bytes,
                                 is_encrypt_flag=is_encrypt_flag,
                                 iv_bytes=iv_bytes,
                                 algorithm=algorithm,
                                 mode=mode)
    (_, crypt_bytes) = crypt_bytes_context(crypt_context, data_bytes)
    return crypt_bytes