crypto.py 文件源码

def ssh_encrypt_text(ssh_public_key, text):
    """Encrypt text with an ssh public key.

    If text is a Unicode string, encode it to UTF-8.
    """
    if isinstance(text, six.text_type):
        text = text.encode('utf-8')
    try:
        pub_bytes = ssh_public_key.encode('utf-8')
        pub_key = serialization.load_ssh_public_key(
            pub_bytes, backends.default_backend())
        return pub_key.encrypt(text, padding.PKCS1v15())
    except Exception as exc:
        raise exception.EncryptionFailure(reason=six.text_type(exc))