ext_encryption_utils.h

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/*
 * You may obtain a copy of the License at
 * Copyright 2014-2016 CyberVision, Inc.
 *
 * 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.
 */

#ifndef EXT_ENCRYPTION_UTILS_H_
#define EXT_ENCRYPTION_UTILS_H_

#include <kaa/kaa_error.h>

#include <stdint.h>
#include <stddef.h>

#ifdef __cplusplus
extern "C" {
#endif

kaa_error_t kaa_init_session_key(void);

void kaa_deinit_session_key(void);

void ext_get_endpoint_session_key(const uint8_t **buffer, size_t *buffer_size);

kaa_error_t ext_encrypt_data(const uint8_t *input, size_t input_size, uint8_t *output);

size_t ext_get_encrypted_data_size(size_t input_size);

kaa_error_t ext_decrypt_data(const uint8_t *input, size_t input_size,
        uint8_t *output, size_t *output_payload_size);

kaa_error_t ext_get_encrypted_session_key(uint8_t **buffer, size_t *buffer_size,
        const uint8_t *remote_key, size_t remote_key_size);

kaa_error_t ext_get_signature(const uint8_t *input, size_t input_size,
                              uint8_t **output, size_t *output_size);

#ifdef __cplusplus
}      /* extern "C" */
#endif

#endif /* EXT_ENCRYPTION_UTILS_H_ */