aes.c File Reference

#include <stdint.h>
#include <string.h>
#include "aes.h"

Include dependency graph for aes.c:

Macros
#define	Nb   4
#define	Nk   4
#define	Nr   10
#define	getSBoxValue(num)   (sbox[(num)])
#define	getSBoxInvert(num)   (rsbox[(num)])
#define	Multiply(x, y)

Typedefs
typedef uint8_t	state_t[4][4]

Functions
void	AES_init_ctx_iv (struct AES_ctx *ctx, const uint8_t *key, const uint8_t *iv)
void	AES_ECB_encrypt (const struct AES_ctx *ctx, uint8_t *buf)
void	AES_ECB_decrypt (const struct AES_ctx *ctx, uint8_t *buf)
void	XorWithIv (uint8_t *buf, const uint8_t *Iv)
void	XorWithByte (uint8_t *buf, uint8_t byte, int length)

Macro Definition Documentation

getSBoxInvert

#define getSBoxInvert

(

num

)

(rsbox[(num)])

getSBoxValue

#define getSBoxValue

(

num

)

(sbox[(num)])

Multiply

#define Multiply	(		x,
			y
	)

Value:

    (  ((y & 1) * x) ^                              \
    ((y>>1 & 1) * xtime(x)) ^                       \
    ((y>>2 & 1) * xtime(xtime(x))) ^                \
    ((y>>3 & 1) * xtime(xtime(xtime(x)))) ^         \
    ((y>>4 & 1) * xtime(xtime(xtime(xtime(x))))))   \

Nb

#define Nb   4

Nk

#define Nk   4

Nr

#define Nr   10

Typedef Documentation

state_t

typedef uint8_t state_t[4][4]

Function Documentation

AES_ECB_decrypt()

void AES_ECB_decrypt	(	const struct AES_ctx *	ctx,
		uint8_t *	buf
	)

AES_ECB_encrypt()

void AES_ECB_encrypt	(	const struct AES_ctx *	ctx,
		uint8_t *	buf
	)

AES_init_ctx_iv()

void AES_init_ctx_iv	(	struct AES_ctx *	ctx,
		const uint8_t *	key,
		const uint8_t *	iv
	)

XorWithByte()

void XorWithByte	(	uint8_t *	buf,
		uint8_t	byte,
		int	length
	)

XorWithIv()

void XorWithIv	(	uint8_t *	buf,
		const uint8_t *	Iv
	)