aes.h

Go to the documentation of this file.

#ifndef MBEDTLS_AES_H
#define MBEDTLS_AES_H

#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif

#include <stddef.h>
#include <stdint.h>

/* padlock.c and aesni.c rely on these values! */
#define MBEDTLS_AES_ENCRYPT     1
#define MBEDTLS_AES_DECRYPT     0

#define MBEDTLS_ERR_AES_INVALID_KEY_LENGTH                -0x0020  
#define MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH              -0x0022  
#if !defined(MBEDTLS_AES_ALT)
// Regular implementation
//

#ifdef __cplusplus
extern "C" {
#endif

typedef struct
{
    int nr;                     
    uint32_t *rk;               
    uint32_t buf[68];           
}
mbedtls_aes_context;

void mbedtls_aes_init( mbedtls_aes_context *ctx );

void mbedtls_aes_free( mbedtls_aes_context *ctx );

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

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

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

#if defined(MBEDTLS_CIPHER_MODE_CBC)

int mbedtls_aes_crypt_cbc( mbedtls_aes_context *ctx,
                    int mode,
                    size_t length,
                    unsigned char iv[16],
                    const unsigned char *input,
                    unsigned char *output );
#endif /* MBEDTLS_CIPHER_MODE_CBC */

#if defined(MBEDTLS_CIPHER_MODE_CFB)

int mbedtls_aes_crypt_cfb128( mbedtls_aes_context *ctx,
                       int mode,
                       size_t length,
                       size_t *iv_off,
                       unsigned char iv[16],
                       const unsigned char *input,
                       unsigned char *output );

int mbedtls_aes_crypt_cfb8( mbedtls_aes_context *ctx,
                    int mode,
                    size_t length,
                    unsigned char iv[16],
                    const unsigned char *input,
                    unsigned char *output );
#endif /*MBEDTLS_CIPHER_MODE_CFB */

#if defined(MBEDTLS_CIPHER_MODE_CTR)

int mbedtls_aes_crypt_ctr( mbedtls_aes_context *ctx,
                       size_t length,
                       size_t *nc_off,
                       unsigned char nonce_counter[16],
                       unsigned char stream_block[16],
                       const unsigned char *input,
                       unsigned char *output );
#endif /* MBEDTLS_CIPHER_MODE_CTR */

void mbedtls_aes_encrypt( mbedtls_aes_context *ctx,
                          const unsigned char input[16],
                          unsigned char output[16] );

void mbedtls_aes_decrypt( mbedtls_aes_context *ctx,
                          const unsigned char input[16],
                          unsigned char output[16] );

#ifdef __cplusplus
}
#endif

#else  /* MBEDTLS_AES_ALT */
#include "aes_alt.h"
#endif /* MBEDTLS_AES_ALT */

#ifdef __cplusplus
extern "C" {
#endif

int mbedtls_aes_self_test( int verbose );

#ifdef __cplusplus
}
#endif

#endif /* aes.h */