aes-set-decrypt-key.c File Reference

#include <stdlib.h>
#include "aes.h"

Go to the source code of this file.

Macros
#define	_NETTLE_ATTRIBUTE_DEPRECATED

Functions
void	aes_invert_key (struct aes_ctx *dst, const struct aes_ctx *src)
void	aes_set_decrypt_key (struct aes_ctx *ctx, size_t keysize, const uint8_t *key)

Macro Definition Documentation

_NETTLE_ATTRIBUTE_DEPRECATED

#define _NETTLE_ATTRIBUTE_DEPRECATED

Definition at line 46 of file aes-set-decrypt-key.c.

Function Documentation

aes_invert_key()

void aes_invert_key	(	struct aes_ctx *	dst,
		const struct aes_ctx *	src
	)

Definition at line 51 of file aes-set-decrypt-key.c.

{
  switch (src->key_size)
    {
    default: abort();
    case AES128_KEY_SIZE:
      aes128_invert_key(&dst->u.ctx128, &src->u.ctx128);
      break;
    case AES192_KEY_SIZE:
      aes192_invert_key(&dst->u.ctx192, &src->u.ctx192);
      break;
    case AES256_KEY_SIZE:
      aes256_invert_key(&dst->u.ctx256, &src->u.ctx256);
      break;
    }
 
  dst->key_size = src->key_size;
}

References aes128_invert_key(), AES128_KEY_SIZE, aes192_invert_key(), AES192_KEY_SIZE, aes256_invert_key(), AES256_KEY_SIZE, dst, and src.

Referenced by aes_set_decrypt_key().

aes_set_decrypt_key()

void aes_set_decrypt_key	(	struct aes_ctx *	ctx,
		size_t	keysize,
		const uint8_t *	key
	)

Definition at line 72 of file aes-set-decrypt-key.c.

{
  /* We first create subkeys for encryption,
   * then modify the subkeys for decryption. */
  aes_set_encrypt_key(ctx, keysize, key);
  aes_invert_key(ctx, ctx);
}

References aes_invert_key(), aes_set_encrypt_key, and key.