aes_keyschedule.c File Reference

#include <stdint.h>
#include "aes.h"
#include "aes_keyschedule.h"
#include "aes_sbox.h"
#include <string.h>
#include <platform/romem.h>

Include dependency graph for aes_keyschedule.c:

Go to the source code of this file.

Macros
#define	aes_rc_T_p   ROMEM_TABLE_P(rc_tab)

Functions
void	aes_init (const void *key, uint16_t keysize_b, aes_genctx_t *ctx)
	initialize the keyschedule More...
void	aes128_init (const void *key, aes128_ctx_t *ctx)
	initialize the keyschedule for 128 bit key More...
void	aes192_init (const void *key, aes192_ctx_t *ctx)
	initialize the keyschedule for 192 bit key More...
void	aes256_init (const void *key, aes256_ctx_t *ctx)
	initialize the keyschedule for 256 bit key More...

Variables
const uint8_t rc_tab[]	ROMEM

Detailed Description

\email bg@ne.nosp@m.rile.nosp@m.x.org

Author

Daniel Otte

Date

2008-12-30 \license GPLv3 or later

Definition in file aes_keyschedule.c.

Function Documentation

aes128_init()

void aes128_init	(	const void *	key,
		aes128_ctx_t *	ctx
	)

initialize the keyschedule for 128 bit key

This function computes the keyschedule from a given 128 bit key and stores it in the context variable

Parameters

key	pointer to the key material
ctx	pointer to the context where the keyschedule should be stored

Definition at line 88 of file aes_keyschedule.c.

References aes_init().

Here is the call graph for this function:

aes192_init()

void aes192_init	(	const void *	key,
		aes192_ctx_t *	ctx
	)

initialize the keyschedule for 192 bit key

This function computes the keyschedule from a given 192 bit key and stores it in the context variable

Parameters

key	pointer to the key material
ctx	pointer to the context where the keyschedule should be stored

Definition at line 93 of file aes_keyschedule.c.

References aes_init().

Here is the call graph for this function:

aes256_init()

void aes256_init	(	const void *	key,
		aes256_ctx_t *	ctx
	)

initialize the keyschedule for 256 bit key

This function computes the keyschedule from a given 256 bit key and stores it in the context variable

Parameters

key	pointer to the key material
ctx	pointer to the context where the keyschedule should be stored

Definition at line 98 of file aes_keyschedule.c.

References aes_init().

Here is the call graph for this function:

aes_init()

void aes_init	(	const void *	key,
		uint16_t	keysize_b,
		aes_genctx_t *	ctx
	)

initialize the keyschedule

This function computes the keyschedule from a given key with a given length and stores it in the context variable

Parameters

key	pointer to the key material
keysize_b	length of the key in bits (valid are 128, 192 and 256)
ctx	pointer to the context where the keyschedule should be stored

Definition at line 52 of file aes_keyschedule.c.

Referenced by aes128_init(), aes192_init(), and aes256_init().

Here is the caller graph for this function:

Variable Documentation

ROMEM

const uint8_t rc_tab [] ROMEM

Initial value:

= { 0x01, 0x02, 0x04, 0x08,
        0x10, 0x20, 0x40, 0x80,
        0x1b, 0x36 }

Definition at line 48 of file aes_keyschedule.c.