3 * Copyright 2018 gRPC authors.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
19 #ifndef GRPC_CORE_TSI_ALTS_FRAME_PROTECTOR_ALTS_FRAME_PROTECTOR_H
20 #define GRPC_CORE_TSI_ALTS_FRAME_PROTECTOR_ALTS_FRAME_PROTECTOR_H
22 #include <grpc/support/port_platform.h>
26 #include "src/core/tsi/transport_security_interface.h"
28 typedef struct alts_frame_protector alts_frame_protector;
31 * TODO: Add a parameter to the interface to support the use of
32 * different record protocols within a frame protector.
34 * This method creates a frame protector.
36 * - key: a symmetric key used to seal/unseal frames.
37 * - key_size: the size of symmetric key.
38 * - is_client: a flag indicating if the frame protector will be used at client
39 * (is_client = true) or server (is_client = false) side.
40 * - is_rekey: a flag indicating if the frame protector will use an AEAD with
42 * - max_protected_frame_size: an in/out parameter indicating max frame size
43 * to be used by the frame protector. If it is nullptr, the default frame
44 * size will be used. Otherwise, the provided frame size will be adjusted (if
45 * not falling into a valid frame range) and used.
46 * - self: a pointer to the frame protector returned from the method.
48 * This method returns TSI_OK on success and TSI_INTERNAL_ERROR otherwise.
50 tsi_result alts_create_frame_protector(const uint8_t* key, size_t key_size,
51 bool is_client, bool is_rekey,
52 size_t* max_protected_frame_size,
53 tsi_frame_protector** self);
55 #endif /* GRPC_CORE_TSI_ALTS_FRAME_PROTECTOR_ALTS_FRAME_PROTECTOR_H */