aes.c File Reference

#include <esp8266.h>
#include <stdint.h>
#include <string.h>
#include "crypto/aes.h"

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Macros
#define	Nb   4
#define	Nk   4
#define	KEYLEN   16
#define	Nr   10
#define	MULTIPLY_AS_A_FUNCTION   0
#define	Multiply(x, y)

Typedefs
typedef uint8_t	state_t[4][4]

Functions
static ICACHE_FLASH_ATTR uint8_t	getSBoxValue (uint8_t num)
static ICACHE_FLASH_ATTR uint8_t	getSBoxInvert (uint8_t num)
static ICACHE_FLASH_ATTR void	KeyExpansion (void)
static ICACHE_FLASH_ATTR void	AddRoundKey (uint8_t round)
static ICACHE_FLASH_ATTR void	SubBytes (void)
static ICACHE_FLASH_ATTR void	ShiftRows (void)
static ICACHE_FLASH_ATTR uint8_t	xtime (uint8_t x)
static ICACHE_FLASH_ATTR void	MixColumns (void)
static ICACHE_FLASH_ATTR void	InvMixColumns (void)
static ICACHE_FLASH_ATTR void	InvSubBytes (void)
static ICACHE_FLASH_ATTR void	InvShiftRows (void)
static ICACHE_FLASH_ATTR void	Cipher (void)
static ICACHE_FLASH_ATTR void	InvCipher (void)
static ICACHE_FLASH_ATTR void	BlockCopy (uint8_t *output, const uint8_t *input)

Variables
static state_t *	state
static uint8_t	RoundKey [176]
static const uint8_t *	Key
static const uint8_t	sbox [256]
static const uint8_t	rsbox [256]
static const uint8_t	Rcon [255]

Macro Definition Documentation

KEYLEN

#define KEYLEN   16

Definition at line 50 of file aes.c.

Referenced by BlockCopy().

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))))))   \

Definition at line 322 of file aes.c.

Referenced by InvMixColumns(), and MixColumns().

MULTIPLY_AS_A_FUNCTION

#define MULTIPLY_AS_A_FUNCTION   0

Definition at line 58 of file aes.c.

Nb

#define Nb   4

Definition at line 46 of file aes.c.

Referenced by AddRoundKey(), and KeyExpansion().

Nk

#define Nk   4

Definition at line 48 of file aes.c.

Referenced by KeyExpansion().

Nr

#define Nr   10

Definition at line 52 of file aes.c.

Referenced by Cipher(), InvCipher(), and KeyExpansion().

Typedef Documentation

state_t

typedef uint8_t state_t[4][4]

Definition at line 66 of file aes.c.

Function Documentation

AddRoundKey()

static ICACHE_FLASH_ATTR void AddRoundKey ( uint8_t  round )

static

Definition at line 228 of file aes.c.

References ICACHE_FLASH_ATTR, Nb, and RoundKey.

Referenced by Cipher(), and InvCipher().

{
  uint8_t i,j;
  for(i=0;i<4;++i)
  {
    for(j = 0; j < 4; ++j)
    {
      (*state)[i][j] ^= RoundKey[round * Nb * 4 + i * Nb + j];
    }
  }
}

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BlockCopy()

static ICACHE_FLASH_ATTR void BlockCopy ( uint8_t *  output, const uint8_t *  input  )

static

Definition at line 453 of file aes.c.

References AES128_CBC_decrypt_buffer(), AES128_CBC_encrypt_buffer(), AES128_ECB_decrypt(), AES128_ECB_encrypt(), Cipher(), ICACHE_FLASH_ATTR, InvCipher(), key, Key, KeyExpansion(), KEYLEN, memset, and state.

{
  uint8_t i;
  for (i=0;i<KEYLEN;++i)
  {
    output[i] = input[i];
  }
}

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Cipher()

static ICACHE_FLASH_ATTR void Cipher ( void  )

static

Definition at line 401 of file aes.c.

References AddRoundKey(), ICACHE_FLASH_ATTR, MixColumns(), Nr, ShiftRows(), and SubBytes().

Referenced by BlockCopy().

{
  uint8_t round = 0;

  // Add the First round key to the state before starting the rounds.
  AddRoundKey(0); 
  
  // There will be Nr rounds.
  // The first Nr-1 rounds are identical.
  // These Nr-1 rounds are executed in the loop below.
  for(round = 1; round < Nr; ++round)
  {
    SubBytes();
    ShiftRows();
    MixColumns();
    AddRoundKey(round);
  }
  
  // The last round is given below.
  // The MixColumns function is not here in the last round.
  SubBytes();
  ShiftRows();
  AddRoundKey(Nr);
}

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getSBoxInvert()

static ICACHE_FLASH_ATTR uint8_t getSBoxInvert ( uint8_t  num )

static

Definition at line 153 of file aes.c.

References ICACHE_FLASH_ATTR, and rsbox.

Referenced by InvSubBytes().

{
  return rsbox[num];
}

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getSBoxValue()

static ICACHE_FLASH_ATTR uint8_t getSBoxValue ( uint8_t  num )

static

Definition at line 147 of file aes.c.

References ICACHE_FLASH_ATTR, and sbox.

Referenced by KeyExpansion(), and SubBytes().

{
  return sbox[num];
}

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InvCipher()

static ICACHE_FLASH_ATTR void InvCipher ( void  )

static

Definition at line 427 of file aes.c.

References AddRoundKey(), ICACHE_FLASH_ATTR, InvMixColumns(), InvShiftRows(), InvSubBytes(), and Nr.

Referenced by BlockCopy().

{
  uint8_t round=0;

  // Add the First round key to the state before starting the rounds.
  AddRoundKey(Nr); 

  // There will be Nr rounds.
  // The first Nr-1 rounds are identical.
  // These Nr-1 rounds are executed in the loop below.
  for(round=Nr-1;round>0;round--)
  {
    InvShiftRows();
    InvSubBytes();
    AddRoundKey(round);
    InvMixColumns();
  }
  
  // The last round is given below.
  // The MixColumns function is not here in the last round.
  InvShiftRows();
  InvSubBytes();
  AddRoundKey(0);
}

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InvMixColumns()

static ICACHE_FLASH_ATTR void InvMixColumns ( void  )

static

Definition at line 335 of file aes.c.

References ICACHE_FLASH_ATTR, and Multiply.

Referenced by InvCipher().

{
  int i;
  uint8_t a,b,c,d;
  for(i=0;i<4;++i)
  { 
    a = (*state)[i][0];
    b = (*state)[i][1];
    c = (*state)[i][2];
    d = (*state)[i][3];

    (*state)[i][0] = Multiply(a, 0x0e) ^ Multiply(b, 0x0b) ^ Multiply(c, 0x0d) ^ Multiply(d, 0x09);
    (*state)[i][1] = Multiply(a, 0x09) ^ Multiply(b, 0x0e) ^ Multiply(c, 0x0b) ^ Multiply(d, 0x0d);
    (*state)[i][2] = Multiply(a, 0x0d) ^ Multiply(b, 0x09) ^ Multiply(c, 0x0e) ^ Multiply(d, 0x0b);
    (*state)[i][3] = Multiply(a, 0x0b) ^ Multiply(b, 0x0d) ^ Multiply(c, 0x09) ^ Multiply(d, 0x0e);
  }
}

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InvShiftRows()

static ICACHE_FLASH_ATTR void InvShiftRows ( void  )

static

Definition at line 370 of file aes.c.

References ICACHE_FLASH_ATTR.

Referenced by InvCipher().

{
  uint8_t temp;

  // Rotate first row 1 columns to right  
  temp=(*state)[3][1];
  (*state)[3][1]=(*state)[2][1];
  (*state)[2][1]=(*state)[1][1];
  (*state)[1][1]=(*state)[0][1];
  (*state)[0][1]=temp;

  // Rotate second row 2 columns to right 
  temp=(*state)[0][2];
  (*state)[0][2]=(*state)[2][2];
  (*state)[2][2]=temp;

  temp=(*state)[1][2];
  (*state)[1][2]=(*state)[3][2];
  (*state)[3][2]=temp;

  // Rotate third row 3 columns to right
  temp=(*state)[0][3];
  (*state)[0][3]=(*state)[1][3];
  (*state)[1][3]=(*state)[2][3];
  (*state)[2][3]=(*state)[3][3];
  (*state)[3][3]=temp;
}

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InvSubBytes()

static ICACHE_FLASH_ATTR void InvSubBytes ( void  )

static

Definition at line 357 of file aes.c.

References getSBoxInvert(), ICACHE_FLASH_ATTR, and state.

Referenced by InvCipher().

{
  uint8_t i,j;
  for(i=0;i<4;++i)
  {
    for(j=0;j<4;++j)
    {
      (*state)[j][i] = getSBoxInvert((*state)[j][i]);
    }
  }
}

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KeyExpansion()

static ICACHE_FLASH_ATTR void KeyExpansion ( void  )

static

Definition at line 160 of file aes.c.

References getSBoxValue(), ICACHE_FLASH_ATTR, Key, Nb, Nk, Nr, Rcon, and RoundKey.

Referenced by BlockCopy().

{
  uint32_t i, j, k;
  uint8_t tempa[4]; // Used for the column/row operations
  
  // The first round key is the key itself.
  for(i = 0; i < Nk; ++i)
  {
    RoundKey[(i * 4) + 0] = Key[(i * 4) + 0];
    RoundKey[(i * 4) + 1] = Key[(i * 4) + 1];
    RoundKey[(i * 4) + 2] = Key[(i * 4) + 2];
    RoundKey[(i * 4) + 3] = Key[(i * 4) + 3];
  }

  // All other round keys are found from the previous round keys.
  for(; (i < (Nb * (Nr + 1))); ++i)
  {
    for(j = 0; j < 4; ++j)
    {
      tempa[j]=RoundKey[(i-1) * 4 + j];
    }
    if (i % Nk == 0)
    {
      // This function rotates the 4 bytes in a word to the left once.
      // [a0,a1,a2,a3] becomes [a1,a2,a3,a0]

      // Function RotWord()
      {
        k = tempa[0];
        tempa[0] = tempa[1];
        tempa[1] = tempa[2];
        tempa[2] = tempa[3];
        tempa[3] = k;
      }

      // SubWord() is a function that takes a four-byte input word and 
      // applies the S-box to each of the four bytes to produce an output word.

      // Function Subword()
      {
        tempa[0] = getSBoxValue(tempa[0]);
        tempa[1] = getSBoxValue(tempa[1]);
        tempa[2] = getSBoxValue(tempa[2]);
        tempa[3] = getSBoxValue(tempa[3]);
      }

      tempa[0] =  tempa[0] ^ Rcon[i/Nk];
    }
    else if (Nk > 6 && i % Nk == 4)
    {
      // Function Subword()
      {
        tempa[0] = getSBoxValue(tempa[0]);
        tempa[1] = getSBoxValue(tempa[1]);
        tempa[2] = getSBoxValue(tempa[2]);
        tempa[3] = getSBoxValue(tempa[3]);
      }
    }
    RoundKey[i * 4 + 0] = RoundKey[(i - Nk) * 4 + 0] ^ tempa[0];
    RoundKey[i * 4 + 1] = RoundKey[(i - Nk) * 4 + 1] ^ tempa[1];
    RoundKey[i * 4 + 2] = RoundKey[(i - Nk) * 4 + 2] ^ tempa[2];
    RoundKey[i * 4 + 3] = RoundKey[(i - Nk) * 4 + 3] ^ tempa[3];
  }
}

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MixColumns()

static ICACHE_FLASH_ATTR void MixColumns ( void  )

static

Definition at line 295 of file aes.c.

References ICACHE_FLASH_ATTR, Multiply, and xtime().

Referenced by Cipher().

{
  uint8_t i;
  uint8_t Tmp,Tm,t;
  for(i = 0; i < 4; ++i)
  {  
    t   = (*state)[i][0];
    Tmp = (*state)[i][0] ^ (*state)[i][1] ^ (*state)[i][2] ^ (*state)[i][3] ;
    Tm  = (*state)[i][0] ^ (*state)[i][1] ; Tm = xtime(Tm);  (*state)[i][0] ^= Tm ^ Tmp ;
    Tm  = (*state)[i][1] ^ (*state)[i][2] ; Tm = xtime(Tm);  (*state)[i][1] ^= Tm ^ Tmp ;
    Tm  = (*state)[i][2] ^ (*state)[i][3] ; Tm = xtime(Tm);  (*state)[i][2] ^= Tm ^ Tmp ;
    Tm  = (*state)[i][3] ^ t ;        Tm = xtime(Tm);  (*state)[i][3] ^= Tm ^ Tmp ;
  }
}

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ShiftRows()

static ICACHE_FLASH_ATTR void ShiftRows ( void  )

static

Definition at line 259 of file aes.c.

References ICACHE_FLASH_ATTR.

Referenced by Cipher().

{
  uint8_t temp;

  // Rotate first row 1 columns to left  
  temp           = (*state)[0][1];
  (*state)[0][1] = (*state)[1][1];
  (*state)[1][1] = (*state)[2][1];
  (*state)[2][1] = (*state)[3][1];
  (*state)[3][1] = temp;

  // Rotate second row 2 columns to left  
  temp           = (*state)[0][2];
  (*state)[0][2] = (*state)[2][2];
  (*state)[2][2] = temp;

  temp       = (*state)[1][2];
  (*state)[1][2] = (*state)[3][2];
  (*state)[3][2] = temp;

  // Rotate third row 3 columns to left
  temp       = (*state)[0][3];
  (*state)[0][3] = (*state)[3][3];
  (*state)[3][3] = (*state)[2][3];
  (*state)[2][3] = (*state)[1][3];
  (*state)[1][3] = temp;
}

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SubBytes()

static ICACHE_FLASH_ATTR void SubBytes ( void  )

static

Definition at line 243 of file aes.c.

References getSBoxValue(), ICACHE_FLASH_ATTR, and state.

Referenced by Cipher().

{
  uint8_t i, j;
  for(i = 0; i < 4; ++i)
  {
    for(j = 0; j < 4; ++j)
    {
      (*state)[j][i] = getSBoxValue((*state)[j][i]);
    }
  }
}

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xtime()

static ICACHE_FLASH_ATTR uint8_t xtime ( uint8_t  x )

static

Definition at line 288 of file aes.c.

References ICACHE_FLASH_ATTR.

Referenced by MixColumns().

{
  return ((x<<1) ^ (((x>>7) & 1) * 0x1b));
}

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Variable Documentation

Key

const uint8_t* Key

static

Definition at line 73 of file aes.c.

Referenced by BlockCopy(), and KeyExpansion().

Rcon

const uint8_t Rcon[255]

static

Initial value:

= {
  0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 
  0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 
  0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 
  0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 
  0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 
  0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 
  0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 
  0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 
  0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 
  0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 
  0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 
  0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 
  0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 
  0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 
  0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 
  0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb  }

Definition at line 124 of file aes.c.

Referenced by KeyExpansion().

RoundKey

uint8_t RoundKey[176]

static

Definition at line 70 of file aes.c.

Referenced by AddRoundKey(), and KeyExpansion().

rsbox

const uint8_t rsbox[256]

static

Initial value:

=
{ 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
  0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
  0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
  0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
  0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
  0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
  0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
  0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
  0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
  0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
  0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
  0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
  0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
  0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
  0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
  0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d }

Definition at line 102 of file aes.c.

Referenced by getSBoxInvert().

sbox

const uint8_t sbox[256]

static

Initial value:

=   {
  
  0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
  0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
  0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
  0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
  0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
  0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
  0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
  0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
  0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
  0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
  0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
  0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
  0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
  0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
  0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
  0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 }

Definition at line 83 of file aes.c.

Referenced by getSBoxValue().

state

state_t* state

static

Definition at line 67 of file aes.c.

Referenced by BlockCopy(), InvSubBytes(), netif_add(), and SubBytes().