security_handler.h

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#ifndef SECURITY_HANDLER_H_
#define SECURITY_HANDLER_H_

#include "mcl_core/mcl_core_common.h"

typedef struct rsa_t
{
    char *public_key;              
    mcl_size_t public_key_length;  
    char *private_key;             
    mcl_size_t private_key_length; 
} rsa_t;

typedef struct security_handler_t
{
    rsa_t rsa;                           
    char *registration_access_token; 
    char *registration_uri;          
    char *client_secret;             
    char *access_token;              
    char *last_token_time;           
    char *client_id;                 
} security_handler_t;

MCL_LOCAL mcl_error_t security_handler_initialize(security_handler_t **security_handler);

MCL_LOCAL mcl_error_t security_handler_generate_jti(char **jti);

MCL_LOCAL mcl_error_t security_handler_hash_sha256(const mcl_uint8_t *data, mcl_size_t data_size, mcl_uint8_t **hash, mcl_size_t *hash_size);

MCL_LOCAL mcl_error_t security_handler_hmac_sha256(security_handler_t *security_handler, const mcl_uint8_t *data, mcl_size_t data_size, mcl_uint8_t **hash,
        mcl_size_t *hash_size);

MCL_LOCAL mcl_error_t security_handler_base64_url_encode(const mcl_uint8_t *data, mcl_size_t data_size, char **encoded_data);

MCL_LOCAL mcl_error_t security_handler_base64_encode(const mcl_uint8_t *data, mcl_size_t data_size, char **encoded_data);

MCL_LOCAL mcl_error_t security_handler_base64_decode(const char *encoded_data, mcl_uint8_t **decoded_data, mcl_size_t *decoded_data_size);

MCL_LOCAL mcl_error_t security_handler_generate_rsa_key(security_handler_t *security_handler);

MCL_LOCAL mcl_error_t security_handler_rsa_sign(char *rsa_key, char *data, mcl_size_t data_size, mcl_uint8_t **signature, mcl_size_t *signature_size);

MCL_LOCAL void security_handler_destroy(security_handler_t **security_handler);

#endif //SECURITY_HANDLER_H_