# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from "tink/python/util/clif.h" import *  # StatusOr

from "tink/cc/streaming_aead.h":
  namespace `crypto::tink`:
    # Interface for streaming authenticated encryption with associated data.
    # Streaming encryption is typically used for encrypting large plaintexts
    # such as large files. This interface supports a streaming interface for
    # symmetric encryption with authentication. The underlying encryption modes
    # are selected so that partial plaintext can be obtained fast by decrypting
    # and authenticating just a part of the ciphertext.
    class StreamingAead:
        # Intentionally empty.
        #
        # The cliffed CC primitive's only purpose is to be stored as a member
        # variable and later be passed to a wrapper function (which sidesteps
        # cliffing an OutputStream). Therefore Python doesn't need to know about
        # its methods, just that it exists.
        pass