security.h File Reference

#include "nvmem.h"

Go to the source code of this file.

Macros
#define	AES128_KEY_SIZE   16

Functions
void	aes_encrypt (unsigned char *state, unsigned char *key)
	AES128 encryption: Given AES128 key and 16 bytes plain text, cipher text of 16 bytes is computed. The AES implementation is in mode ECB (Electronic Code Book).
void	aes_decrypt (unsigned char *state, unsigned char *key)
	AES128 decryption: Given AES128 key and 16 bytes cipher text, plain text of 16 bytes is computed The AES implementation is in mode ECB (Electronic Code Book).
signed long	aes_read_key (unsigned char *key)
	Reads AES128 key from EEPROM Reads the AES128 key from fileID #12 in EEPROM returns an error if the key does not exist.
signed long	aes_write_key (unsigned char *key)
	writes AES128 key from EEPROM Writes the AES128 key to fileID #12 in EEPROM

Macro Definition Documentation

#define AES128_KEY_SIZE   16

Definition at line 51 of file security.h.

Function Documentation

void aes_encrypt	(	unsigned char *	state,
		unsigned char *	key
	)

AES128 encryption: Given AES128 key and 16 bytes plain text, cipher text of 16 bytes is computed. The AES implementation is in mode ECB (Electronic Code Book).

aes_encrypt

Parameters

[in]	key	AES128 key of size 16 bytes
	in\out]	state 16 bytes of plain text and cipher text

Returns

none

void aes_decrypt	(	unsigned char *	state,
		unsigned char *	key
	)

AES128 decryption: Given AES128 key and 16 bytes cipher text, plain text of 16 bytes is computed The AES implementation is in mode ECB (Electronic Code Book).

aes_decrypt

Parameters

[in]	key	AES128 key of size 16 bytes
	in\out]	state 16 bytes of cipher text and plain text

Returns

none

signed long aes_read_key

(

unsigned char *

key

)

Reads AES128 key from EEPROM Reads the AES128 key from fileID #12 in EEPROM returns an error if the key does not exist.

aes_read_key

Parameters

[out]

key

AES128 key of size 16 bytes

Returns

on success 0, error otherwise.

signed long aes_write_key

(

unsigned char *

key

)

writes AES128 key from EEPROM Writes the AES128 key to fileID #12 in EEPROM

aes_write_key

Parameters

[out]

key

AES128 key of size 16 bytes

Returns

on success 0, error otherwise.