aes_i.h File Reference

AES (Rijndael) cipher. More...

#include "aes.h"

Go to the source code of this file.

Macros
#define	AES_SMALL_TABLES
#define	RCON(i)
#define	TE0(i)
#define	TE1(i)
#define	TE2(i)
#define	TE3(i)
#define	TE41(i)
#define	TE42(i)
#define	TE43(i)
#define	TE44(i)
#define	TE421(i)
#define	TE432(i)
#define	TE443(i)
#define	TE414(i)
#define	TE4(i)
#define	TD0(i)
#define	TD1(i)
#define	TD2(i)
#define	TD3(i)
#define	TD41(i)
#define	TD42(i)
#define	TD43(i)
#define	TD44(i)
#define	TD0_(i)
#define	TD1_(i)
#define	TD2_(i)
#define	TD3_(i)
#define	GETU32(pt)
#define	PUTU32(ct, st)
#define	AES_PRIV_SIZE   (4 * 44)

Functions
static u32	rotr (u32 val, int bits)
void	rijndaelKeySetupEnc (u32 rk[], const u8 cipherKey[])
	Expand the cipher key into the encryption key schedule.

Variables
const u32	Te0 [256]
const u32	Te1 [256]
const u32	Te2 [256]
const u32	Te3 [256]
const u32	Te4 [256]
const u32	Td0 [256]
const u32	Td1 [256]
const u32	Td2 [256]
const u32	Td3 [256]
const u32	Td4 [256]
const u32	rcon [10]
const u8	Td4s [256]
const u8	rcons [10]

Detailed Description

AES (Rijndael) cipher.

Macro Definition Documentation

AES_PRIV_SIZE

#define AES_PRIV_SIZE   (4 * 44)

Referenced by aes_encrypt_deinit(), and aes_encrypt_init().

AES_SMALL_TABLES

#define AES_SMALL_TABLES

GETU32

#define GETU32

(

pt

)

Value:

(((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ \
((u32)(pt)[2] <<  8) ^ ((u32)(pt)[3]))

Referenced by rijndaelEncrypt(), and rijndaelKeySetupEnc().

PUTU32

#define PUTU32	(		ct,
			st )

Value:

{ \
(ct)[0] = (u8)((st) >> 24); (ct)[1] = (u8)((st) >> 16); \
(ct)[2] = (u8)((st) >>  8); (ct)[3] = (u8)(st); }

Referenced by rijndaelEncrypt().

RCON

#define RCON

(

i

)

Value:

((u32)rcons[(i)] << 24)

Referenced by rijndaelKeySetupEnc().

TD0

#define TD0

(

i

)

Value:

Td0[((i) >> 24) & 0xff]

TD0_

#define TD0_

(

i

)

Value:

Td0[(i) & 0xff]

TD1

#define TD1

(

i

)

Value:

rotr(Td0[((i) >> 16) & 0xff], 8)

TD1_

#define TD1_

(

i

)

Value:

rotr(Td0[(i) & 0xff], 8)

TD2

#define TD2

(

i

)

Value:

rotr(Td0[((i) >> 8) & 0xff], 16)

TD2_

#define TD2_

(

i

)

Value:

rotr(Td0[(i) & 0xff], 16)

TD3

#define TD3

(

i

)

Value:

rotr(Td0[(i) & 0xff], 24)

TD3_

#define TD3_

(

i

)

Value:

rotr(Td0[(i) & 0xff], 24)

TD41

#define TD41

(

i

)

Value:

(Td4s[((i) >> 24) & 0xff] << 24)

TD42

#define TD42

(

i

)

Value:

(Td4s[((i) >> 16) & 0xff] << 16)

TD43

#define TD43

(

i

)

Value:

(Td4s[((i) >> 8) & 0xff] << 8)

TD44

#define TD44

(

i

)

Value:

(Td4s[(i) & 0xff])

TE0

#define TE0

(

i

)

Value:

Te0[((i) >> 24) & 0xff]

TE1

#define TE1

(

i

)

Value:

rotr(Te0[((i) >> 16) & 0xff], 8)

TE2

#define TE2

(

i

)

Value:

rotr(Te0[((i) >> 8) & 0xff], 16)

TE3

#define TE3

(

i

)

Value:

rotr(Te0[(i) & 0xff], 24)

TE4

#define TE4

(

i

)

Value:

((Te0[(i)] >> 8) & 0x000000ff)

TE41

#define TE41

(

i

)

Value:

((Te0[((i) >> 24) & 0xff] << 8) & 0xff000000)

Referenced by rijndaelEncrypt().

TE414

#define TE414

(

i

)

Value:

((Te0[((i) >> 24) & 0xff] >> 8) & 0x000000ff)

Referenced by rijndaelKeySetupEnc().

TE42

#define TE42

(

i

)

Value:

(Te0[((i) >> 16) & 0xff] & 0x00ff0000)

Referenced by rijndaelEncrypt().

TE421

#define TE421

(

i

)

Value:

((Te0[((i) >> 16) & 0xff] << 8) & 0xff000000)

Referenced by rijndaelKeySetupEnc().

TE43

#define TE43

(

i

)

Value:

(Te0[((i) >> 8) & 0xff] & 0x0000ff00)

Referenced by rijndaelEncrypt().

TE432

#define TE432

(

i

)

Value:

(Te0[((i) >> 8) & 0xff] & 0x00ff0000)

Referenced by rijndaelKeySetupEnc().

TE44

#define TE44

(

i

)

Value:

((Te0[(i) & 0xff] >> 8) & 0x000000ff)

Referenced by rijndaelEncrypt().

TE443

#define TE443

(

i

)

Value:

(Te0[(i) & 0xff] & 0x0000ff00)

Referenced by rijndaelKeySetupEnc().

Function Documentation

rijndaelKeySetupEnc()

void rijndaelKeySetupEnc	(	u32	rk[],
		const u8	cipherKey[] )

Expand the cipher key into the encryption key schedule.

Returns

the number of rounds for the given cipher key size.

References GETU32, RCON, TE414, TE421, TE432, and TE443.

Referenced by aes_encrypt_init().

rotr()

u32 rotr ( u32 val, int bits )

inlinestatic

Variable Documentation

rcon

const u32 rcon[10]

extern

rcons

const u8 rcons[10]

extern

Td0

const u32 Td0[256]

extern

Td1

const u32 Td1[256]

extern

Td2

const u32 Td2[256]

extern

Td3

const u32 Td3[256]

extern

Td4

const u32 Td4[256]

extern

Td4s

const u8 Td4s[256]

extern

Te0

const u32 Te0[256]

extern

Te1

const u32 Te1[256]

extern

Te2

const u32 Te2[256]

extern

Te3

const u32 Te3[256]

extern

Te4

const u32 Te4[256]

extern