drv_rom_cipher.h

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#ifndef DRV_ROM_CIPHER_H
#define DRV_ROM_CIPHER_H
 
int drv_rom_cipher_init(void);
int drv_rom_cipher_deinit(void);
 
/* support data_length not 64 bytes aligned. */
int drv_rom_cipher_sha256(const unsigned char *data, unsigned int data_length, unsigned char *hash,
    unsigned int hash_length);
 
int drv_rom_cipher_get_randnum(unsigned int *randnum);
 
/* ecc verify. */
typedef struct {
    unsigned char *x;
    unsigned char *y;
    unsigned int length;
} drv_rom_cipher_ecc_point;
 
typedef struct {
    unsigned int length;
    unsigned char *data;
} drv_rom_cipher_data;
 
typedef struct {
    unsigned char  *r;
    unsigned char  *s;
    unsigned int length;
} drv_rom_cipher_ecc_sig;
 
int drv_rom_cipher_pke_bp256r_verify(const drv_rom_cipher_ecc_point *pub_key, const drv_rom_cipher_data *hash,
    const drv_rom_cipher_ecc_sig *sig);
#endif