AES block cipher

Detailed Description

CRYPTO hardware accelerated AES block cipher.

Collaboration diagram for AES block cipher:

Data Structures
struct	mbedtls_aes_context
	AES context structure. More...

Macros
#define	MBEDTLS_AES_ENCRYPT   1
#define	MBEDTLS_AES_DECRYPT   0
#define	MBEDTLS_ERR_AES_NOT_SUPPORTED   ((int)MBEDTLS_ECODE_AESDRV_NOT_SUPPORTED)
#define	MBEDTLS_ERR_AES_AUTHENTICATION_FAILED   ((int)MBEDTLS_ECODE_AESDRV_AUTHENTICATION_FAILED)
#define	MBEDTLS_ERR_AES_OUT_OF_RESOURCES   ((int)MBEDTLS_ECODE_AESDRV_OUT_OF_RESOURCES)
#define	MBEDTLS_ERR_AES_INVALID_PARAM   ((int)MBEDTLS_ECODE_AESDRV_INVALID_PARAM)

Functions
void	mbedtls_aes_init (mbedtls_aes_context *ctx)
	Initialize AES context. More...
void	mbedtls_aes_free (mbedtls_aes_context *ctx)
	Clear AES context. More...
int	mbedtls_aes_setkey_enc (mbedtls_aes_context *ctx, const unsigned char *key, unsigned int keybits)
	AES key schedule (encryption) More...
int	mbedtls_aes_setkey_dec (mbedtls_aes_context *ctx, const unsigned char *key, unsigned int keybits)
	AES key schedule (decryption) More...
int	mbedtls_aes_crypt_ecb (mbedtls_aes_context *ctx, int mode, const unsigned char input[16], unsigned char output[16])
	AES-ECB block encryption/decryption. More...
int	mbedtls_aes_self_test (int verbose)
	Checkup routine. More...

Macro Definition Documentation

#define MBEDTLS_AES_DECRYPT   0

Definition at line 50 of file aes_alt.h.

#define MBEDTLS_AES_ENCRYPT   1

Definition at line 49 of file aes_alt.h.

#define MBEDTLS_ERR_AES_AUTHENTICATION_FAILED   ((int)MBEDTLS_ECODE_AESDRV_AUTHENTICATION_FAILED)

Definition at line 54 of file aes_alt.h.

#define MBEDTLS_ERR_AES_INVALID_PARAM   ((int)MBEDTLS_ECODE_AESDRV_INVALID_PARAM)

Definition at line 56 of file aes_alt.h.

#define MBEDTLS_ERR_AES_NOT_SUPPORTED   ((int)MBEDTLS_ECODE_AESDRV_NOT_SUPPORTED)

Definition at line 53 of file aes_alt.h.

#define MBEDTLS_ERR_AES_OUT_OF_RESOURCES   ((int)MBEDTLS_ECODE_AESDRV_OUT_OF_RESOURCES)

Definition at line 55 of file aes_alt.h.

Function Documentation

int mbedtls_aes_crypt_ecb	(	mbedtls_aes_context *	ctx,
		int	mode,
		const unsigned char	input[16],
		unsigned char	output[16]
	)

AES-ECB block encryption/decryption.

Parameters

ctx	AES context
mode	MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT
input	16-byte input block
output	16-byte output block

Returns

0 if successful

void mbedtls_aes_free

(

mbedtls_aes_context *

ctx

)

Clear AES context.

Parameters

ctx	AES context to be cleared

void mbedtls_aes_init

(

mbedtls_aes_context *

ctx

)

Initialize AES context.

Parameters

ctx	AES context to be initialized

int mbedtls_aes_self_test

(

int

verbose

)

Checkup routine.

Returns

0 if successful, or 1 if the test failed

int mbedtls_aes_setkey_dec	(	mbedtls_aes_context *	ctx,
		const unsigned char *	key,
		unsigned int	keybits
	)

AES key schedule (decryption)

Parameters

ctx	AES context to be initialized
key	decryption key
keybits	must be 128, 192 or 256

Returns

0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH

int mbedtls_aes_setkey_enc	(	mbedtls_aes_context *	ctx,
		const unsigned char *	key,
		unsigned int	keybits
	)

AES key schedule (encryption)

Parameters

ctx	AES context to be initialized
key	encryption key
keybits	must be 128, 192 or 256

Returns

0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH