app_jwt.h

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/*
 * Copyright (c) 2024 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */
 
#ifndef _APP_JWT_H
#define _APP_JWT_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stdint.h>
#include <stdbool.h>
#include <strings.h>
 
#define APP_JWT_STR_MAX_LEN 900
 
#define APP_JWT_VALID_TIME_S_MAX (7 * 24 * 60 * 60)
 
#define APP_JWT_VALID_TIME_S_DEF (10 * 60)
 
#define APP_JWT_CLAIM_MAX_SIZE 64
 
enum app_jwt_key_type {
        JWT_KEY_TYPE_CLIENT_PRIV = 2,
        JWT_KEY_TYPE_ENDORSEMENT = 8,
};
 
enum app_jwt_alg_type {
        JWT_ALG_TYPE_ES256 = 0,
};
 
struct app_jwt_data {
        unsigned int sec_tag;
        enum app_jwt_key_type key_type;
        enum app_jwt_alg_type alg;
 
        bool add_keyid_to_header;
 
        const char *json_token_id;
        const char *subject;
        const char *audience;
        const char *issuer;
 
        bool add_timestamp;
 
        uint32_t validity_s;
 
        char *jwt_buf;
        size_t jwt_sz;
};
 
int app_jwt_generate(struct app_jwt_data *const jwt);
 
#if CONFIG_APP_JWT_PROVIDE_UUID
#define APP_JWT_UUID_BYTE_SZ 16
 
#define APP_JWT_UUID_V4_STR_LEN (((APP_JWT_UUID_BYTE_SZ * 2) + 4) + 1)
 
int app_jwt_get_uuid(char *uuid_buffer, const size_t uuid_buffer_size);
#endif /* CONFIG_APP_JWT_PROVIDE_UUID */
 
#ifdef __cplusplus
}
#endif
 
#endif /* _APP_JWT_H */