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Christoph Urlacher
2026-06-12 20:06:22 +02:00
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targets/wasm-tacle/sequential/rijndael_dec/generated/modified_sources/default/aes.c Normal file
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/*
-----------------------------------------------------------------------
Copyright (c) 2001 Dr Brian Gladman <brg@gladman.uk.net>, Worcester, UK
TERMS
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
This software is provided 'as is' with no guarantees of correctness or
fitness for purpose.
-----------------------------------------------------------------------
FUNCTION
The AES algorithm Rijndael implemented for block and key sizes of 128,
bits (16 bytes) by Brian Gladman.
This is an implementation of the AES encryption algorithm (Rijndael)
designed by Joan Daemen and Vincent Rijmen.
*/
#include "aes.h"
#include "aestab.h"
// Wasm loop bounds
__attribute__((import_module("__pragma"), import_name("loopbound"))) extern void
__pragma_loopbound(unsigned int min_bound, unsigned int max_bound);
#define four_tables(x, tab, vf, rf, c) \
(tab[0][bval(vf(x, 0, c), rf(0, c))] ^ \
tab[1][bval(vf(x, 1, c), rf(1, c))] ^ \
tab[2][bval(vf(x, 2, c), rf(2, c))] ^ \
tab[3][bval(vf(x, 3, c), rf(3, c))])
#define vf1(x, r, c) (x)
#define rf1(r, c) (r)
#define rf2(r, c) ((r - c) & 3)
#define ls_box(x, c) four_tables(x, rijndael_dec_fl_tab, vf1, rf2, c)
#define inv_mcol(x) four_tables(x, rijndael_dec_im_tab, vf1, rf1, 0)
/*
Subroutine to set the block size (if variable) in bytes, legal
values being 16, 24 and 32.
*/
#define nc (Ncol)
/*
Initialise the key schedule from the user supplied key. The key
length is now specified in bytes - 16, 24 or 32 as appropriate.
This corresponds to bit lengths of 128, 192 and 256 bits, and
to Nk values of 4, 6 and 8 respectively.
*/
#define mx(t, f) (*t++ = inv_mcol(*f), f++)
#define cp(t, f) *t++ = *f++
#define cpy(d, s) \
do { \
cp(d, s); \
cp(d, s); \
cp(d, s); \
cp(d, s); \
} while (0) // min 1 max 1
#define mix(d, s) \
do { \
mx(d, s); \
mx(d, s); \
mx(d, s); \
mx(d, s); \
} while (0) // min 1 max 1
aes_ret
rijndael_dec_set_key(byte in_key[], const word n_bytes, const enum aes_key f,
struct aes *cx) {
word *kf, *kt, rci;
if ((n_bytes & 7) || n_bytes < 16 || n_bytes > 32 || (!(f & 1) && !(f & 2)))
return (n_bytes ? cx->mode &= ~0x03,
aes_bad : (aes_ret) (cx->Nkey << 2));
cx->mode = (cx->mode & ~0x03) | ((byte) f & 0x03);
cx->Nkey = n_bytes >> 2;
cx->Nrnd = Nr(cx->Nkey, (word) nc);
cx->e_key[0] = word_in(in_key);
cx->e_key[1] = word_in(in_key + 4);
cx->e_key[2] = word_in(in_key + 8);
cx->e_key[3] = word_in(in_key + 12);
kf = cx->e_key;
kt = kf + nc * (cx->Nrnd + 1) - cx->Nkey;
rci = 0;
switch (cx->Nkey) {
case 4:
__pragma_loopbound(0, 0);
do {
kf[4] = kf[0] ^ ls_box(kf[3], 3) ^ rijndael_dec_rcon_tab[rci++];
kf[5] = kf[1] ^ kf[4];
kf[6] = kf[2] ^ kf[5];
kf[7] = kf[3] ^ kf[6];
kf += 4;
} while (kf < kt);
break;
case 6:
cx->e_key[4] = word_in(in_key + 16);
cx->e_key[5] = word_in(in_key + 20);
__pragma_loopbound(0, 0);
do {
kf[6] = kf[0] ^ ls_box(kf[5], 3) ^ rijndael_dec_rcon_tab[rci++];
kf[7] = kf[1] ^ kf[6];
kf[8] = kf[2] ^ kf[7];
kf[9] = kf[3] ^ kf[8];
kf[10] = kf[4] ^ kf[9];
kf[11] = kf[5] ^ kf[10];
kf += 6;
} while (kf < kt);
break;
case 8:
cx->e_key[4] = word_in(in_key + 16);
cx->e_key[5] = word_in(in_key + 20);
cx->e_key[6] = word_in(in_key + 24);
cx->e_key[7] = word_in(in_key + 28);
__pragma_loopbound(7, 7);
do {
kf[8] = kf[0] ^ ls_box(kf[7], 3) ^ rijndael_dec_rcon_tab[rci++];
kf[9] = kf[1] ^ kf[8];
kf[10] = kf[2] ^ kf[9];
kf[11] = kf[3] ^ kf[10];
kf[12] = kf[4] ^ ls_box(kf[11], 0);
kf[13] = kf[5] ^ kf[12];
kf[14] = kf[6] ^ kf[13];
kf[15] = kf[7] ^ kf[14];
kf += 8;
} while (kf < kt);
break;
}
if ((cx->mode & 3) != enc) {
word i;
kt = cx->d_key + nc * cx->Nrnd;
kf = cx->e_key;
cpy(kt, kf);
kt -= 2 * nc;
__pragma_loopbound(13, 13);
for (i = 1; i < cx->Nrnd; ++i) {
mix(kt, kf);
kt -= 2 * nc;
}
cpy(kt, kf);
}
return aes_good;
}
short
rijndael_dec_decrypt(const unsigned char in_blk[], unsigned char out_blk[],
const struct aes *cx) {
const unsigned long *kp = cx->d_key;
if (!(cx->mode & 2))
return 0;
unsigned long b0[4];
b0[0] = *(unsigned long *) in_blk ^ kp[0];
b0[1] = *(unsigned long *) (in_blk + 4) ^ kp[1];
b0[2] = *(unsigned long *) (in_blk + 8) ^ kp[2];
b0[3] = *(unsigned long *) (in_blk + 12) ^ kp[3];
kp += 4;
unsigned long b1[4];
switch (cx->Nrnd) {
case 14:
b1[0] =
kp[0] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[1] >> 24))]);
b1[1] =
kp[1] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[2] >> 24))]);
b1[2] =
kp[2] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[3] >> 24))]);
b1[3] =
kp[3] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[0] >> 24))]);
b0[0] = (kp + 4)[0] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[1] >> 24))]);
b0[1] = (kp + 4)[1] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[2] >> 24))]);
b0[2] = (kp + 4)[2] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[3] >> 24))]);
b0[3] = (kp + 4)[3] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[0] >> 24))]);
kp += 8;
case 12:
b1[0] =
kp[0] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[1] >> 24))]);
b1[1] =
kp[1] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[2] >> 24))]);
b1[2] =
kp[2] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[3] >> 24))]);
b1[3] =
kp[3] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[0] >> 24))]);
b0[0] = (kp + 4)[0] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[1] >> 24))]);
b0[1] = (kp + 4)[1] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[2] >> 24))]);
b0[2] = (kp + 4)[2] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[3] >> 24))]);
b0[3] = (kp + 4)[3] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[0] >> 24))]);
kp += 8;
case 10:
b1[0] =
kp[0] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[1] >> 24))]);
b1[1] =
kp[1] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[2] >> 24))]);
b1[2] =
kp[2] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[3] >> 24))]);
b1[3] =
kp[3] ^ (rijndael_dec_it_tab[0][((unsigned char) b0[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[0] >> 24))]);
b0[0] = (kp + 4)[0] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[1] >> 24))]);
b0[1] = (kp + 4)[1] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[2] >> 24))]);
b0[2] = (kp + 4)[2] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[3] >> 24))]);
b0[3] = (kp + 4)[3] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[0] >> 24))]);
b1[0] = (kp + 8)[0] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[1] >> 24))]);
b1[1] = (kp + 8)[1] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[2] >> 24))]);
b1[2] = (kp + 8)[2] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[3] >> 24))]);
b1[3] = (kp + 8)[3] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[0] >> 24))]);
b0[0] = (kp + 12)[0] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[1] >> 24))]);
b0[1] = (kp + 12)[1] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[2] >> 24))]);
b0[2] = (kp + 12)[2] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[3] >> 24))]);
b0[3] = (kp + 12)[3] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[0] >> 24))]);
b1[0] = (kp + 16)[0] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[1] >> 24))]);
b1[1] = (kp + 16)[1] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[2] >> 24))]);
b1[2] = (kp + 16)[2] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[3] >> 24))]);
b1[3] = (kp + 16)[3] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[0] >> 24))]);
b0[0] = (kp + 20)[0] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[1] >> 24))]);
b0[1] = (kp + 20)[1] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[2] >> 24))]);
b0[2] = (kp + 20)[2] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[3] >> 24))]);
b0[3] = (kp + 20)[3] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[0] >> 24))]);
b1[0] = (kp + 24)[0] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[1] >> 24))]);
b1[1] = (kp + 24)[1] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[2] >> 24))]);
b1[2] = (kp + 24)[2] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[3] >> 24))]);
b1[3] = (kp + 24)[3] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[0] >> 24))]);
b0[0] = (kp + 28)[0] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[1] >> 24))]);
b0[1] = (kp + 28)[1] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[2] >> 24))]);
b0[2] = (kp + 28)[2] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[3] >> 24))]);
b0[3] = (kp + 28)[3] ^
(rijndael_dec_it_tab[0][((unsigned char) b1[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b1[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b1[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b1[0] >> 24))]);
b1[0] = (kp + 32)[0] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[0])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[3] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[2] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[1] >> 24))]);
b1[1] = (kp + 32)[1] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[1])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[0] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[3] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[2] >> 24))]);
b1[2] = (kp + 32)[2] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[2])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[1] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[0] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[3] >> 24))]);
b1[3] = (kp + 32)[3] ^
(rijndael_dec_it_tab[0][((unsigned char) b0[3])] ^
rijndael_dec_it_tab[1][((unsigned char) (b0[2] >> 8))] ^
rijndael_dec_it_tab[2][((unsigned char) (b0[1] >> 16))] ^
rijndael_dec_it_tab[3][((unsigned char) (b0[0] >> 24))]);
b0[0] = (kp + 36)[0] ^
(rijndael_dec_il_tab[0][((unsigned char) b1[0])] ^
rijndael_dec_il_tab[1][((unsigned char) (b1[3] >> 8))] ^
rijndael_dec_il_tab[2][((unsigned char) (b1[2] >> 16))] ^
rijndael_dec_il_tab[3][((unsigned char) (b1[1] >> 24))]);
b0[1] = (kp + 36)[1] ^
(rijndael_dec_il_tab[0][((unsigned char) b1[1])] ^
rijndael_dec_il_tab[1][((unsigned char) (b1[0] >> 8))] ^
rijndael_dec_il_tab[2][((unsigned char) (b1[3] >> 16))] ^
rijndael_dec_il_tab[3][((unsigned char) (b1[2] >> 24))]);
b0[2] = (kp + 36)[2] ^
(rijndael_dec_il_tab[0][((unsigned char) b1[2])] ^
rijndael_dec_il_tab[1][((unsigned char) (b1[1] >> 8))] ^
rijndael_dec_il_tab[2][((unsigned char) (b1[0] >> 16))] ^
rijndael_dec_il_tab[3][((unsigned char) (b1[3] >> 24))]);
b0[3] = (kp + 36)[3] ^
(rijndael_dec_il_tab[0][((unsigned char) b1[3])] ^
rijndael_dec_il_tab[1][((unsigned char) (b1[2] >> 8))] ^
rijndael_dec_il_tab[2][((unsigned char) (b1[1] >> 16))] ^
rijndael_dec_il_tab[3][((unsigned char) (b1[0] >> 24))]);
}
*(unsigned long *) out_blk = (b0[0]);
*(unsigned long *) (out_blk + 4) = (b0[1]);
*(unsigned long *) (out_blk + 8) = (b0[2]);
*(unsigned long *) (out_blk + 12) = (b0[3]);
return aes_good;
}

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/*
-----------------------------------------------------------------------
Copyright (c) 2001 Dr Brian Gladman <brg@gladman.uk.net>, Worcester, UK
TERMS
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
This software is provided 'as is' with no guarantees of correctness or
fitness for purpose.
-----------------------------------------------------------------------
1. FUNCTION
The AES algorithm Rijndael implemented for block and key sizes of
128 bits (16 bytes) by Brian Gladman.
This is an implementation of the AES encryption algorithm (Rijndael)
designed by Joan Daemen and Vincent Rijmen.
2. THE CIPHER INTERFACE
byte (an unsigned 8-bit type)
word (an unsigned 32-bit type)
aes_ret: (a signed 16 bit type for function return values)
aes_good (value != 0, a good return)
aes_bad (value == 0, an error return)
enum aes_key: (encryption direction)
enc (set key for encryption)
dec (set key for decryption)
both (set key for both)
class or struct aes (structure for context)
C subroutine calls:
aes_ret set_blk(const word block_length, aes *cx) (variable block size)
aes_ret set_key(const byte key[ ], const word key_length,
const enum aes_key direction, aes *cx)
aes_ret encrypt(const byte input_blk[ ], byte output_blk[ ], const aes *cx)
aes_ret decrypt(const byte input_blk[ ], byte output_blk[ ], const aes *cx)
IMPORTANT NOTE: If you are using this C interface and your compiler does
not set the memory used for objects to zero before use, you will need to
ensure that cx.mode is set to zero before using the C subroutine calls.
The block length inputs to set_block and set_key are in numbers of
BYTES, not bits. The calls to subroutines must be made in the above
order but multiple calls can be made without repeating earlier calls
if their parameters have not changed. If the cipher block length is
variable but set_blk has not been called before cipher operations a
value of 16 is assumed (that is, the AES block size). In contrast to
earlier versions the block and key length parameters are now checked
for correctness and the encryption and decryption routines check to
ensure that an appropriate key has been set before they are called.
*/
#ifndef _AES_H
#define _AES_H
/* The only supported block size for the benchmark is 16 */
#define BLOCK_SIZE 16
/*
The number of key schedule words for different block and key lengths
(allowing for the method of computation which requires the length to
be a multiple of the key length):
Key Schedule key length (bytes)
Length 16 20 24 28 32
---------------------
block 16 | 44 60 54 56 64
length 20 | 60 60 66 70 80
(bytes) 24 | 80 80 78 84 96
28 | 100 100 102 98 112
32 | 120 120 120 126 120
Rcon Table key length (bytes)
Length 16 20 24 28 32
---------------------
block 16 | 10 9 8 7 7
length 20 | 14 11 10 9 9
(bytes) 24 | 19 15 12 11 11
28 | 24 19 16 13 13
32 | 29 23 19 17 14
The following values assume that the key length will be variable and may
be of maximum length (32 bytes).
Nk = number_of_key_bytes / 4
Nc = number_of_columns_in_state / 4
Nr = number of encryption/decryption rounds
Rc = number of elements in rcon table
Ks = number of 32-bit words in key schedule
*/
#define Nr(Nk, Nc) ((Nk > Nc ? Nk : Nc) + 6)
#define Rc(Nk, Nc) ((Nb * (Nr(Nk, Nc) + 1) - 1) / Nk)
#define Ks(Nk, Nc) (Nk * (Rc(Nk, Nc) + 1))
#define RC_LENGTH 5 * BLOCK_SIZE / 4 - (BLOCK_SIZE == 16 ? 10 : 11)
#define KS_LENGTH 4 * BLOCK_SIZE
/* End of configuration options, but see also aes.c */
typedef unsigned char byte; /* must be an 8-bit storage unit */
typedef unsigned long word; /* must be a 32-bit storage unit */
typedef short aes_ret; /* function return value */
#define aes_bad 0
#define aes_good 1
/*
upr(x,n): rotates bytes within words by n positions, moving bytes
to higher index positions with wrap around into low positions
ups(x,n): moves bytes by n positions to higher index positions in
words but without wrap around
bval(x,n): extracts a byte from a word
*/
#define upr(x, n) (((x) << 8 * (n)) | ((x) >> (32 - 8 * (n))))
#define ups(x, n) ((x) << 8 * (n))
#define bval(x, n) ((byte) ((x) >> 8 * (n)))
#define byte_swap(x) (upr(x, 1) & 0x00ff00ff | upr(x, 3) & 0xff00ff00)
#define bytes2word(b0, b1, b2, b3) \
((word) (b3) << 24 | (word) (b2) << 16 | (word) (b1) << 8 | (b0))
#define word_in(x) *(word *) (x)
#define word_out(x, v) *(word *) (x) = (v)
enum aes_const {
Nrow = 4, /* the number of rows in the cipher state */
Mcol = 8, /* maximum number of columns in the state */
Ncol = BLOCK_SIZE / 4,
Shr0 = 0, /* the cyclic shift values for rows 0, 1, 2 & 3 */
Shr1 = 1,
Shr2 = BLOCK_SIZE == 32 ? 3 : 2,
Shr3 = BLOCK_SIZE == 32 ? 4 : 3
};
enum aes_key {
enc = 1, /* set if encryption is needed */
dec = 2, /* set if decryption is needed */
both = 3 /* set if both are needed */
};
struct aes {
word Nkey; /* the number of words in the key input block */
word Nrnd; /* the number of cipher rounds */
word e_key[KS_LENGTH]; /* the encryption key schedule */
word d_key[KS_LENGTH]; /* the decryption key schedule */
byte mode; /* encrypt, decrypt or both */
};
aes_ret rijndael_dec_set_key(byte key[], const word n_bytes,
const enum aes_key f, struct aes *cx);
aes_ret rijndael_dec_decrypt(const byte in_blk[], byte out_blk[],
const struct aes *cx);
#endif

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/*
-----------------------------------------------------------------------
Copyright (c) 2001 Dr Brian Gladman <brg@gladman.uk.net>, Worcester, UK
TERMS
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
This software is provided 'as is' with no guarantees of correctness or
fitness for purpose.
-----------------------------------------------------------------------
*/
/*
Used to ensure table is generated in the right format
depending on the internal byte order required.
*/
#define w0(p) 0x000000##p
/*
Number of elements required in this table for different
block and key lengths is:
Rcon Table key length (bytes)
Length 16 20 24 28 32
---------------------
block 16 | 10 9 8 7 7
length 20 | 14 11 10 9 9
(bytes) 24 | 19 15 12 11 11
28 | 24 19 16 13 13
32 | 29 23 19 17 14
this table can be a table of bytes if the key schedule
code is adjusted accordingly
*/
const word rijndael_dec_rcon_tab[29] = {
w0(01), w0(02), w0(04), w0(08), w0(10), w0(20), w0(40), w0(80),
w0(1b), w0(36), w0(6c), w0(d8), w0(ab), w0(4d), w0(9a), w0(2f),
w0(5e), w0(bc), w0(63), w0(c6), w0(97), w0(35), w0(6a), w0(d4),
w0(b3), w0(7d), w0(fa), w0(ef), w0(c5)};
#undef w0
/*
used to ensure table is generated in the right format
depending on the internal byte order required
*/
#define r0(p, q, r, s) 0x##p##q##r##s
#define r1(p, q, r, s) 0x##q##r##s##p
#define r2(p, q, r, s) 0x##r##s##p##q
#define r3(p, q, r, s) 0x##s##p##q##r
#define w0(p) 0x000000##p
#define w1(p) 0x0000##p##00
#define w2(p) 0x00##p##0000
#define w3(p) 0x##p##000000
/*
used to ensure table is generated in the right format
depending on the internal byte order required
*/
/* data for forward tables (other than last round) */
#define f_table \
r(a5, 63, 63, c6), r(84, 7c, 7c, f8), r(99, 77, 77, ee), \
r(8d, 7b, 7b, f6), r(0d, f2, f2, ff), r(bd, 6b, 6b, d6), \
r(b1, 6f, 6f, de), r(54, c5, c5, 91), r(50, 30, 30, 60), \
r(03, 01, 01, 02), r(a9, 67, 67, ce), r(7d, 2b, 2b, 56), \
r(19, fe, fe, e7), r(62, d7, d7, b5), r(e6, ab, ab, 4d), \
r(9a, 76, 76, ec), r(45, ca, ca, 8f), r(9d, 82, 82, 1f), \
r(40, c9, c9, 89), r(87, 7d, 7d, fa), r(15, fa, fa, ef), \
r(eb, 59, 59, b2), r(c9, 47, 47, 8e), r(0b, f0, f0, fb), \
r(ec, ad, ad, 41), r(67, d4, d4, b3), r(fd, a2, a2, 5f), \
r(ea, af, af, 45), r(bf, 9c, 9c, 23), r(f7, a4, a4, 53), \
r(96, 72, 72, e4), r(5b, c0, c0, 9b), r(c2, b7, b7, 75), \
r(1c, fd, fd, e1), r(ae, 93, 93, 3d), r(6a, 26, 26, 4c), \
r(5a, 36, 36, 6c), r(41, 3f, 3f, 7e), r(02, f7, f7, f5), \
r(4f, cc, cc, 83), r(5c, 34, 34, 68), r(f4, a5, a5, 51), \
r(34, e5, e5, d1), r(08, f1, f1, f9), r(93, 71, 71, e2), \
r(73, d8, d8, ab), r(53, 31, 31, 62), r(3f, 15, 15, 2a), \
r(0c, 04, 04, 08), r(52, c7, c7, 95), r(65, 23, 23, 46), \
r(5e, c3, c3, 9d), r(28, 18, 18, 30), r(a1, 96, 96, 37), \
r(0f, 05, 05, 0a), r(b5, 9a, 9a, 2f), r(09, 07, 07, 0e), \
r(36, 12, 12, 24), r(9b, 80, 80, 1b), r(3d, e2, e2, df), \
r(26, eb, eb, cd), r(69, 27, 27, 4e), r(cd, b2, b2, 7f), \
r(9f, 75, 75, ea), r(1b, 09, 09, 12), r(9e, 83, 83, 1d), \
r(74, 2c, 2c, 58), r(2e, 1a, 1a, 34), r(2d, 1b, 1b, 36), \
r(b2, 6e, 6e, dc), r(ee, 5a, 5a, b4), r(fb, a0, a0, 5b), \
r(f6, 52, 52, a4), r(4d, 3b, 3b, 76), r(61, d6, d6, b7), \
r(ce, b3, b3, 7d), r(7b, 29, 29, 52), r(3e, e3, e3, dd), \
r(71, 2f, 2f, 5e), r(97, 84, 84, 13), r(f5, 53, 53, a6), \
r(68, d1, d1, b9), r(00, 00, 00, 00), r(2c, ed, ed, c1), \
r(60, 20, 20, 40), r(1f, fc, fc, e3), r(c8, b1, b1, 79), \
r(ed, 5b, 5b, b6), r(be, 6a, 6a, d4), r(46, cb, cb, 8d), \
r(d9, be, be, 67), r(4b, 39, 39, 72), r(de, 4a, 4a, 94), \
r(d4, 4c, 4c, 98), r(e8, 58, 58, b0), r(4a, cf, cf, 85), \
r(6b, d0, d0, bb), r(2a, ef, ef, c5), r(e5, aa, aa, 4f), \
r(16, fb, fb, ed), r(c5, 43, 43, 86), r(d7, 4d, 4d, 9a), \
r(55, 33, 33, 66), r(94, 85, 85, 11), r(cf, 45, 45, 8a), \
r(10, f9, f9, e9), r(06, 02, 02, 04), r(81, 7f, 7f, fe), \
r(f0, 50, 50, a0), r(44, 3c, 3c, 78), r(ba, 9f, 9f, 25), \
r(e3, a8, a8, 4b), r(f3, 51, 51, a2), r(fe, a3, a3, 5d), \
r(c0, 40, 40, 80), r(8a, 8f, 8f, 05), r(ad, 92, 92, 3f), \
r(bc, 9d, 9d, 21), r(48, 38, 38, 70), r(04, f5, f5, f1), \
r(df, bc, bc, 63), r(c1, b6, b6, 77), r(75, da, da, af), \
r(63, 21, 21, 42), r(30, 10, 10, 20), r(1a, ff, ff, e5), \
r(0e, f3, f3, fd), r(6d, d2, d2, bf), r(4c, cd, cd, 81), \
r(14, 0c, 0c, 18), r(35, 13, 13, 26), r(2f, ec, ec, c3), \
r(e1, 5f, 5f, be), r(a2, 97, 97, 35), r(cc, 44, 44, 88), \
r(39, 17, 17, 2e), r(57, c4, c4, 93), r(f2, a7, a7, 55), \
r(82, 7e, 7e, fc), r(47, 3d, 3d, 7a), r(ac, 64, 64, c8), \
r(e7, 5d, 5d, ba), r(2b, 19, 19, 32), r(95, 73, 73, e6), \
r(a0, 60, 60, c0), r(98, 81, 81, 19), r(d1, 4f, 4f, 9e), \
r(7f, dc, dc, a3), r(66, 22, 22, 44), r(7e, 2a, 2a, 54), \
r(ab, 90, 90, 3b), r(83, 88, 88, 0b), r(ca, 46, 46, 8c), \
r(29, ee, ee, c7), r(d3, b8, b8, 6b), r(3c, 14, 14, 28), \
r(79, de, de, a7), r(e2, 5e, 5e, bc), r(1d, 0b, 0b, 16), \
r(76, db, db, ad), r(3b, e0, e0, db), r(56, 32, 32, 64), \
r(4e, 3a, 3a, 74), r(1e, 0a, 0a, 14), r(db, 49, 49, 92), \
r(0a, 06, 06, 0c), r(6c, 24, 24, 48), r(e4, 5c, 5c, b8), \
r(5d, c2, c2, 9f), r(6e, d3, d3, bd), r(ef, ac, ac, 43), \
r(a6, 62, 62, c4), r(a8, 91, 91, 39), r(a4, 95, 95, 31), \
r(37, e4, e4, d3), r(8b, 79, 79, f2), r(32, e7, e7, d5), \
r(43, c8, c8, 8b), r(59, 37, 37, 6e), r(b7, 6d, 6d, da), \
r(8c, 8d, 8d, 01), r(64, d5, d5, b1), r(d2, 4e, 4e, 9c), \
r(e0, a9, a9, 49), r(b4, 6c, 6c, d8), r(fa, 56, 56, ac), \
r(07, f4, f4, f3), r(25, ea, ea, cf), r(af, 65, 65, ca), \
r(8e, 7a, 7a, f4), r(e9, ae, ae, 47), r(18, 08, 08, 10), \
r(d5, ba, ba, 6f), r(88, 78, 78, f0), r(6f, 25, 25, 4a), \
r(72, 2e, 2e, 5c), r(24, 1c, 1c, 38), r(f1, a6, a6, 57), \
r(c7, b4, b4, 73), r(51, c6, c6, 97), r(23, e8, e8, cb), \
r(7c, dd, dd, a1), r(9c, 74, 74, e8), r(21, 1f, 1f, 3e), \
r(dd, 4b, 4b, 96), r(dc, bd, bd, 61), r(86, 8b, 8b, 0d), \
r(85, 8a, 8a, 0f), r(90, 70, 70, e0), r(42, 3e, 3e, 7c), \
r(c4, b5, b5, 71), r(aa, 66, 66, cc), r(d8, 48, 48, 90), \
r(05, 03, 03, 06), r(01, f6, f6, f7), r(12, 0e, 0e, 1c), \
r(a3, 61, 61, c2), r(5f, 35, 35, 6a), r(f9, 57, 57, ae), \
r(d0, b9, b9, 69), r(91, 86, 86, 17), r(58, c1, c1, 99), \
r(27, 1d, 1d, 3a), r(b9, 9e, 9e, 27), r(38, e1, e1, d9), \
r(13, f8, f8, eb), r(b3, 98, 98, 2b), r(33, 11, 11, 22), \
r(bb, 69, 69, d2), r(70, d9, d9, a9), r(89, 8e, 8e, 07), \
r(a7, 94, 94, 33), r(b6, 9b, 9b, 2d), r(22, 1e, 1e, 3c), \
r(92, 87, 87, 15), r(20, e9, e9, c9), r(49, ce, ce, 87), \
r(ff, 55, 55, aa), r(78, 28, 28, 50), r(7a, df, df, a5), \
r(8f, 8c, 8c, 03), r(f8, a1, a1, 59), r(80, 89, 89, 09), \
r(17, 0d, 0d, 1a), r(da, bf, bf, 65), r(31, e6, e6, d7), \
r(c6, 42, 42, 84), r(b8, 68, 68, d0), r(c3, 41, 41, 82), \
r(b0, 99, 99, 29), r(77, 2d, 2d, 5a), r(11, 0f, 0f, 1e), \
r(cb, b0, b0, 7b), r(fc, 54, 54, a8), r(d6, bb, bb, 6d), \
r(3a, 16, 16, 2c)
/* data for inverse tables (other than last round) */
#define i_table \
r(50, a7, f4, 51), r(53, 65, 41, 7e), r(c3, a4, 17, 1a), \
r(96, 5e, 27, 3a), r(cb, 6b, ab, 3b), r(f1, 45, 9d, 1f), \
r(ab, 58, fa, ac), r(93, 03, e3, 4b), r(55, fa, 30, 20), \
r(f6, 6d, 76, ad), r(91, 76, cc, 88), r(25, 4c, 02, f5), \
r(fc, d7, e5, 4f), r(d7, cb, 2a, c5), r(80, 44, 35, 26), \
r(8f, a3, 62, b5), r(49, 5a, b1, de), r(67, 1b, ba, 25), \
r(98, 0e, ea, 45), r(e1, c0, fe, 5d), r(02, 75, 2f, c3), \
r(12, f0, 4c, 81), r(a3, 97, 46, 8d), r(c6, f9, d3, 6b), \
r(e7, 5f, 8f, 03), r(95, 9c, 92, 15), r(eb, 7a, 6d, bf), \
r(da, 59, 52, 95), r(2d, 83, be, d4), r(d3, 21, 74, 58), \
r(29, 69, e0, 49), r(44, c8, c9, 8e), r(6a, 89, c2, 75), \
r(78, 79, 8e, f4), r(6b, 3e, 58, 99), r(dd, 71, b9, 27), \
r(b6, 4f, e1, be), r(17, ad, 88, f0), r(66, ac, 20, c9), \
r(b4, 3a, ce, 7d), r(18, 4a, df, 63), r(82, 31, 1a, e5), \
r(60, 33, 51, 97), r(45, 7f, 53, 62), r(e0, 77, 64, b1), \
r(84, ae, 6b, bb), r(1c, a0, 81, fe), r(94, 2b, 08, f9), \
r(58, 68, 48, 70), r(19, fd, 45, 8f), r(87, 6c, de, 94), \
r(b7, f8, 7b, 52), r(23, d3, 73, ab), r(e2, 02, 4b, 72), \
r(57, 8f, 1f, e3), r(2a, ab, 55, 66), r(07, 28, eb, b2), \
r(03, c2, b5, 2f), r(9a, 7b, c5, 86), r(a5, 08, 37, d3), \
r(f2, 87, 28, 30), r(b2, a5, bf, 23), r(ba, 6a, 03, 02), \
r(5c, 82, 16, ed), r(2b, 1c, cf, 8a), r(92, b4, 79, a7), \
r(f0, f2, 07, f3), r(a1, e2, 69, 4e), r(cd, f4, da, 65), \
r(d5, be, 05, 06), r(1f, 62, 34, d1), r(8a, fe, a6, c4), \
r(9d, 53, 2e, 34), r(a0, 55, f3, a2), r(32, e1, 8a, 05), \
r(75, eb, f6, a4), r(39, ec, 83, 0b), r(aa, ef, 60, 40), \
r(06, 9f, 71, 5e), r(51, 10, 6e, bd), r(f9, 8a, 21, 3e), \
r(3d, 06, dd, 96), r(ae, 05, 3e, dd), r(46, bd, e6, 4d), \
r(b5, 8d, 54, 91), r(05, 5d, c4, 71), r(6f, d4, 06, 04), \
r(ff, 15, 50, 60), r(24, fb, 98, 19), r(97, e9, bd, d6), \
r(cc, 43, 40, 89), r(77, 9e, d9, 67), r(bd, 42, e8, b0), \
r(88, 8b, 89, 07), r(38, 5b, 19, e7), r(db, ee, c8, 79), \
r(47, 0a, 7c, a1), r(e9, 0f, 42, 7c), r(c9, 1e, 84, f8), \
r(00, 00, 00, 00), r(83, 86, 80, 09), r(48, ed, 2b, 32), \
r(ac, 70, 11, 1e), r(4e, 72, 5a, 6c), r(fb, ff, 0e, fd), \
r(56, 38, 85, 0f), r(1e, d5, ae, 3d), r(27, 39, 2d, 36), \
r(64, d9, 0f, 0a), r(21, a6, 5c, 68), r(d1, 54, 5b, 9b), \
r(3a, 2e, 36, 24), r(b1, 67, 0a, 0c), r(0f, e7, 57, 93), \
r(d2, 96, ee, b4), r(9e, 91, 9b, 1b), r(4f, c5, c0, 80), \
r(a2, 20, dc, 61), r(69, 4b, 77, 5a), r(16, 1a, 12, 1c), \
r(0a, ba, 93, e2), r(e5, 2a, a0, c0), r(43, e0, 22, 3c), \
r(1d, 17, 1b, 12), r(0b, 0d, 09, 0e), r(ad, c7, 8b, f2), \
r(b9, a8, b6, 2d), r(c8, a9, 1e, 14), r(85, 19, f1, 57), \
r(4c, 07, 75, af), r(bb, dd, 99, ee), r(fd, 60, 7f, a3), \
r(9f, 26, 01, f7), r(bc, f5, 72, 5c), r(c5, 3b, 66, 44), \
r(34, 7e, fb, 5b), r(76, 29, 43, 8b), r(dc, c6, 23, cb), \
r(68, fc, ed, b6), r(63, f1, e4, b8), r(ca, dc, 31, d7), \
r(10, 85, 63, 42), r(40, 22, 97, 13), r(20, 11, c6, 84), \
r(7d, 24, 4a, 85), r(f8, 3d, bb, d2), r(11, 32, f9, ae), \
r(6d, a1, 29, c7), r(4b, 2f, 9e, 1d), r(f3, 30, b2, dc), \
r(ec, 52, 86, 0d), r(d0, e3, c1, 77), r(6c, 16, b3, 2b), \
r(99, b9, 70, a9), r(fa, 48, 94, 11), r(22, 64, e9, 47), \
r(c4, 8c, fc, a8), r(1a, 3f, f0, a0), r(d8, 2c, 7d, 56), \
r(ef, 90, 33, 22), r(c7, 4e, 49, 87), r(c1, d1, 38, d9), \
r(fe, a2, ca, 8c), r(36, 0b, d4, 98), r(cf, 81, f5, a6), \
r(28, de, 7a, a5), r(26, 8e, b7, da), r(a4, bf, ad, 3f), \
r(e4, 9d, 3a, 2c), r(0d, 92, 78, 50), r(9b, cc, 5f, 6a), \
r(62, 46, 7e, 54), r(c2, 13, 8d, f6), r(e8, b8, d8, 90), \
r(5e, f7, 39, 2e), r(f5, af, c3, 82), r(be, 80, 5d, 9f), \
r(7c, 93, d0, 69), r(a9, 2d, d5, 6f), r(b3, 12, 25, cf), \
r(3b, 99, ac, c8), r(a7, 7d, 18, 10), r(6e, 63, 9c, e8), \
r(7b, bb, 3b, db), r(09, 78, 26, cd), r(f4, 18, 59, 6e), \
r(01, b7, 9a, ec), r(a8, 9a, 4f, 83), r(65, 6e, 95, e6), \
r(7e, e6, ff, aa), r(08, cf, bc, 21), r(e6, e8, 15, ef), \
r(d9, 9b, e7, ba), r(ce, 36, 6f, 4a), r(d4, 09, 9f, ea), \
r(d6, 7c, b0, 29), r(af, b2, a4, 31), r(31, 23, 3f, 2a), \
r(30, 94, a5, c6), r(c0, 66, a2, 35), r(37, bc, 4e, 74), \
r(a6, ca, 82, fc), r(b0, d0, 90, e0), r(15, d8, a7, 33), \
r(4a, 98, 04, f1), r(f7, da, ec, 41), r(0e, 50, cd, 7f), \
r(2f, f6, 91, 17), r(8d, d6, 4d, 76), r(4d, b0, ef, 43), \
r(54, 4d, aa, cc), r(df, 04, 96, e4), r(e3, b5, d1, 9e), \
r(1b, 88, 6a, 4c), r(b8, 1f, 2c, c1), r(7f, 51, 65, 46), \
r(04, ea, 5e, 9d), r(5d, 35, 8c, 01), r(73, 74, 87, fa), \
r(2e, 41, 0b, fb), r(5a, 1d, 67, b3), r(52, d2, db, 92), \
r(33, 56, 10, e9), r(13, 47, d6, 6d), r(8c, 61, d7, 9a), \
r(7a, 0c, a1, 37), r(8e, 14, f8, 59), r(89, 3c, 13, eb), \
r(ee, 27, a9, ce), r(35, c9, 61, b7), r(ed, e5, 1c, e1), \
r(3c, b1, 47, 7a), r(59, df, d2, 9c), r(3f, 73, f2, 55), \
r(79, ce, 14, 18), r(bf, 37, c7, 73), r(ea, cd, f7, 53), \
r(5b, aa, fd, 5f), r(14, 6f, 3d, df), r(86, db, 44, 78), \
r(81, f3, af, ca), r(3e, c4, 68, b9), r(2c, 34, 24, 38), \
r(5f, 40, a3, c2), r(72, c3, 1d, 16), r(0c, 25, e2, bc), \
r(8b, 49, 3c, 28), r(41, 95, 0d, ff), r(71, 01, a8, 39), \
r(de, b3, 0c, 08), r(9c, e4, b4, d8), r(90, c1, 56, 64), \
r(61, 84, cb, 7b), r(70, b6, 32, d5), r(74, 5c, 6c, 48), \
r(42, 57, b8, d0)
/* generate the required tables in the desired endian format */
#undef r
#define r r0
const word rijndael_dec_it_tab[4][256] = {{i_table},
#undef r
#define r r1
{i_table},
#undef r
#define r r2
{i_table},
#undef r
#define r r3
{i_table}};
/* data for inverse tables (last round) */
#define li_table \
w(52), w(09), w(6a), w(d5), w(30), w(36), w(a5), w(38), w(bf), w(40), \
w(a3), w(9e), w(81), w(f3), w(d7), w(fb), w(7c), w(e3), w(39), w(82), \
w(9b), w(2f), w(ff), w(87), w(34), w(8e), w(43), w(44), w(c4), w(de), \
w(e9), w(cb), w(54), w(7b), w(94), w(32), w(a6), w(c2), w(23), w(3d), \
w(ee), w(4c), w(95), w(0b), w(42), w(fa), w(c3), w(4e), w(08), w(2e), \
w(a1), w(66), w(28), w(d9), w(24), w(b2), w(76), w(5b), w(a2), w(49), \
w(6d), w(8b), w(d1), w(25), w(72), w(f8), w(f6), w(64), w(86), w(68), \
w(98), w(16), w(d4), w(a4), w(5c), w(cc), w(5d), w(65), w(b6), w(92), \
w(6c), w(70), w(48), w(50), w(fd), w(ed), w(b9), w(da), w(5e), w(15), \
w(46), w(57), w(a7), w(8d), w(9d), w(84), w(90), w(d8), w(ab), w(00), \
w(8c), w(bc), w(d3), w(0a), w(f7), w(e4), w(58), w(05), w(b8), w(b3), \
w(45), w(06), w(d0), w(2c), w(1e), w(8f), w(ca), w(3f), w(0f), w(02), \
w(c1), w(af), w(bd), w(03), w(01), w(13), w(8a), w(6b), w(3a), w(91), \
w(11), w(41), w(4f), w(67), w(dc), w(ea), w(97), w(f2), w(cf), w(ce), \
w(f0), w(b4), w(e6), w(73), w(96), w(ac), w(74), w(22), w(e7), w(ad), \
w(35), w(85), w(e2), w(f9), w(37), w(e8), w(1c), w(75), w(df), w(6e), \
w(47), w(f1), w(1a), w(71), w(1d), w(29), w(c5), w(89), w(6f), w(b7), \
w(62), w(0e), w(aa), w(18), w(be), w(1b), w(fc), w(56), w(3e), w(4b), \
w(c6), w(d2), w(79), w(20), w(9a), w(db), w(c0), w(fe), w(78), w(cd), \
w(5a), w(f4), w(1f), w(dd), w(a8), w(33), w(88), w(07), w(c7), w(31), \
w(b1), w(12), w(10), w(59), w(27), w(80), w(ec), w(5f), w(60), w(51), \
w(7f), w(a9), w(19), w(b5), w(4a), w(0d), w(2d), w(e5), w(7a), w(9f), \
w(93), w(c9), w(9c), w(ef), w(a0), w(e0), w(3b), w(4d), w(ae), w(2a), \
w(f5), w(b0), w(c8), w(eb), w(bb), w(3c), w(83), w(53), w(99), w(61), \
w(17), w(2b), w(04), w(7e), w(ba), w(77), w(d6), w(26), w(e1), w(69), \
w(14), w(63), w(55), w(21), w(0c), w(7d),
/* generate the required tables in the desired endian format */
#undef r
#define r(p, q, r, s) w0(q)
const word rijndael_dec_fl_tab[4][256] = {{f_table},
#undef r
#define r(p, q, r, s) w1(q)
{f_table},
#undef r
#define r(p, q, r, s) w2(q)
{f_table},
#undef r
#define r(p, q, r, s) w3(q)
{f_table}};
#undef w
#define w w0
const word rijndael_dec_il_tab[4][256] = {{li_table},
#undef w
#define w w1
{li_table},
#undef w
#define w w2
{li_table},
#undef w
#define w w3
{li_table}};
#define m_table \
r(00, 00, 00, 00), r(0b, 0d, 09, 0e), r(16, 1a, 12, 1c), \
r(1d, 17, 1b, 12), r(2c, 34, 24, 38), r(27, 39, 2d, 36), \
r(3a, 2e, 36, 24), r(31, 23, 3f, 2a), r(58, 68, 48, 70), \
r(53, 65, 41, 7e), r(4e, 72, 5a, 6c), r(45, 7f, 53, 62), \
r(74, 5c, 6c, 48), r(7f, 51, 65, 46), r(62, 46, 7e, 54), \
r(69, 4b, 77, 5a), r(b0, d0, 90, e0), r(bb, dd, 99, ee), \
r(a6, ca, 82, fc), r(ad, c7, 8b, f2), r(9c, e4, b4, d8), \
r(97, e9, bd, d6), r(8a, fe, a6, c4), r(81, f3, af, ca), \
r(e8, b8, d8, 90), r(e3, b5, d1, 9e), r(fe, a2, ca, 8c), \
r(f5, af, c3, 82), r(c4, 8c, fc, a8), r(cf, 81, f5, a6), \
r(d2, 96, ee, b4), r(d9, 9b, e7, ba), r(7b, bb, 3b, db), \
r(70, b6, 32, d5), r(6d, a1, 29, c7), r(66, ac, 20, c9), \
r(57, 8f, 1f, e3), r(5c, 82, 16, ed), r(41, 95, 0d, ff), \
r(4a, 98, 04, f1), r(23, d3, 73, ab), r(28, de, 7a, a5), \
r(35, c9, 61, b7), r(3e, c4, 68, b9), r(0f, e7, 57, 93), \
r(04, ea, 5e, 9d), r(19, fd, 45, 8f), r(12, f0, 4c, 81), \
r(cb, 6b, ab, 3b), r(c0, 66, a2, 35), r(dd, 71, b9, 27), \
r(d6, 7c, b0, 29), r(e7, 5f, 8f, 03), r(ec, 52, 86, 0d), \
r(f1, 45, 9d, 1f), r(fa, 48, 94, 11), r(93, 03, e3, 4b), \
r(98, 0e, ea, 45), r(85, 19, f1, 57), r(8e, 14, f8, 59), \
r(bf, 37, c7, 73), r(b4, 3a, ce, 7d), r(a9, 2d, d5, 6f), \
r(a2, 20, dc, 61), r(f6, 6d, 76, ad), r(fd, 60, 7f, a3), \
r(e0, 77, 64, b1), r(eb, 7a, 6d, bf), r(da, 59, 52, 95), \
r(d1, 54, 5b, 9b), r(cc, 43, 40, 89), r(c7, 4e, 49, 87), \
r(ae, 05, 3e, dd), r(a5, 08, 37, d3), r(b8, 1f, 2c, c1), \
r(b3, 12, 25, cf), r(82, 31, 1a, e5), r(89, 3c, 13, eb), \
r(94, 2b, 08, f9), r(9f, 26, 01, f7), r(46, bd, e6, 4d), \
r(4d, b0, ef, 43), r(50, a7, f4, 51), r(5b, aa, fd, 5f), \
r(6a, 89, c2, 75), r(61, 84, cb, 7b), r(7c, 93, d0, 69), \
r(77, 9e, d9, 67), r(1e, d5, ae, 3d), r(15, d8, a7, 33), \
r(08, cf, bc, 21), r(03, c2, b5, 2f), r(32, e1, 8a, 05), \
r(39, ec, 83, 0b), r(24, fb, 98, 19), r(2f, f6, 91, 17), \
r(8d, d6, 4d, 76), r(86, db, 44, 78), r(9b, cc, 5f, 6a), \
r(90, c1, 56, 64), r(a1, e2, 69, 4e), r(aa, ef, 60, 40), \
r(b7, f8, 7b, 52), r(bc, f5, 72, 5c), r(d5, be, 05, 06), \
r(de, b3, 0c, 08), r(c3, a4, 17, 1a), r(c8, a9, 1e, 14), \
r(f9, 8a, 21, 3e), r(f2, 87, 28, 30), r(ef, 90, 33, 22), \
r(e4, 9d, 3a, 2c), r(3d, 06, dd, 96), r(36, 0b, d4, 98), \
r(2b, 1c, cf, 8a), r(20, 11, c6, 84), r(11, 32, f9, ae), \
r(1a, 3f, f0, a0), r(07, 28, eb, b2), r(0c, 25, e2, bc), \
r(65, 6e, 95, e6), r(6e, 63, 9c, e8), r(73, 74, 87, fa), \
r(78, 79, 8e, f4), r(49, 5a, b1, de), r(42, 57, b8, d0), \
r(5f, 40, a3, c2), r(54, 4d, aa, cc), r(f7, da, ec, 41), \
r(fc, d7, e5, 4f), r(e1, c0, fe, 5d), r(ea, cd, f7, 53), \
r(db, ee, c8, 79), r(d0, e3, c1, 77), r(cd, f4, da, 65), \
r(c6, f9, d3, 6b), r(af, b2, a4, 31), r(a4, bf, ad, 3f), \
r(b9, a8, b6, 2d), r(b2, a5, bf, 23), r(83, 86, 80, 09), \
r(88, 8b, 89, 07), r(95, 9c, 92, 15), r(9e, 91, 9b, 1b), \
r(47, 0a, 7c, a1), r(4c, 07, 75, af), r(51, 10, 6e, bd), \
r(5a, 1d, 67, b3), r(6b, 3e, 58, 99), r(60, 33, 51, 97), \
r(7d, 24, 4a, 85), r(76, 29, 43, 8b), r(1f, 62, 34, d1), \
r(14, 6f, 3d, df), r(09, 78, 26, cd), r(02, 75, 2f, c3), \
r(33, 56, 10, e9), r(38, 5b, 19, e7), r(25, 4c, 02, f5), \
r(2e, 41, 0b, fb), r(8c, 61, d7, 9a), r(87, 6c, de, 94), \
r(9a, 7b, c5, 86), r(91, 76, cc, 88), r(a0, 55, f3, a2), \
r(ab, 58, fa, ac), r(b6, 4f, e1, be), r(bd, 42, e8, b0), \
r(d4, 09, 9f, ea), r(df, 04, 96, e4), r(c2, 13, 8d, f6), \
r(c9, 1e, 84, f8), r(f8, 3d, bb, d2), r(f3, 30, b2, dc), \
r(ee, 27, a9, ce), r(e5, 2a, a0, c0), r(3c, b1, 47, 7a), \
r(37, bc, 4e, 74), r(2a, ab, 55, 66), r(21, a6, 5c, 68), \
r(10, 85, 63, 42), r(1b, 88, 6a, 4c), r(06, 9f, 71, 5e), \
r(0d, 92, 78, 50), r(64, d9, 0f, 0a), r(6f, d4, 06, 04), \
r(72, c3, 1d, 16), r(79, ce, 14, 18), r(48, ed, 2b, 32), \
r(43, e0, 22, 3c), r(5e, f7, 39, 2e), r(55, fa, 30, 20), \
r(01, b7, 9a, ec), r(0a, ba, 93, e2), r(17, ad, 88, f0), \
r(1c, a0, 81, fe), r(2d, 83, be, d4), r(26, 8e, b7, da), \
r(3b, 99, ac, c8), r(30, 94, a5, c6), r(59, df, d2, 9c), \
r(52, d2, db, 92), r(4f, c5, c0, 80), r(44, c8, c9, 8e), \
r(75, eb, f6, a4), r(7e, e6, ff, aa), r(63, f1, e4, b8), \
r(68, fc, ed, b6), r(b1, 67, 0a, 0c), r(ba, 6a, 03, 02), \
r(a7, 7d, 18, 10), r(ac, 70, 11, 1e), r(9d, 53, 2e, 34), \
r(96, 5e, 27, 3a), r(8b, 49, 3c, 28), r(80, 44, 35, 26), \
r(e9, 0f, 42, 7c), r(e2, 02, 4b, 72), r(ff, 15, 50, 60), \
r(f4, 18, 59, 6e), r(c5, 3b, 66, 44), r(ce, 36, 6f, 4a), \
r(d3, 21, 74, 58), r(d8, 2c, 7d, 56), r(7a, 0c, a1, 37), \
r(71, 01, a8, 39), r(6c, 16, b3, 2b), r(67, 1b, ba, 25), \
r(56, 38, 85, 0f), r(5d, 35, 8c, 01), r(40, 22, 97, 13), \
r(4b, 2f, 9e, 1d), r(22, 64, e9, 47), r(29, 69, e0, 49), \
r(34, 7e, fb, 5b), r(3f, 73, f2, 55), r(0e, 50, cd, 7f), \
r(05, 5d, c4, 71), r(18, 4a, df, 63), r(13, 47, d6, 6d), \
r(ca, dc, 31, d7), r(c1, d1, 38, d9), r(dc, c6, 23, cb), \
r(d7, cb, 2a, c5), r(e6, e8, 15, ef), r(ed, e5, 1c, e1), \
r(f0, f2, 07, f3), r(fb, ff, 0e, fd), r(92, b4, 79, a7), \
r(99, b9, 70, a9), r(84, ae, 6b, bb), r(8f, a3, 62, b5), \
r(be, 80, 5d, 9f), r(b5, 8d, 54, 91), r(a8, 9a, 4f, 83), \
r(a3, 97, 46, 8d)
#undef r
#define r r0
const word rijndael_dec_im_tab[4][256] = {{m_table},
#undef r
#define r r1
{m_table},
#undef r
#define r r2
{m_table},
#undef r
#define r r3
{m_table}};

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targets/wasm-tacle/sequential/rijndael_dec/generated/modified_sources/default/input_small_enc.c Normal file
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targets/wasm-tacle/sequential/rijndael_dec/generated/modified_sources/default/rijndael_dec.c Normal file
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/*
This program is part of the TACLeBench benchmark suite.
Version V 2.0
Name: rijndael_enc
Author: Dr Brian Gladman
Function: rijndael_dec is an implementation of the AES decryption
algorithm (Rijndael).
Source: security section of MiBench
Changes: Add computation of a checksum, refactoring
License: see below
*/
/*
-----------------------------------------------------------------------
Copyright (c) 2001 Dr Brian Gladman <brg@gladman.uk.net>, Worcester, UK
TERMS
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
This software is provided 'as is' with no guarantees of correctness or
fitness for purpose.
-----------------------------------------------------------------------
*/
#include "aes.h"
#include "rijndael_dec_libc.h"
/*
Global variable definitions
*/
// Wasm loop bounds
__attribute__((import_module("__pragma"), import_name("loopbound"))) extern void
__pragma_loopbound(unsigned int min_bound, unsigned int max_bound);
unsigned char rijndael_dec_key[32];
int rijndael_dec_key_len;
extern unsigned char rijndael_dec_data[];
struct rijndael_dec_FILE rijndael_dec_fin;
int rijndael_dec_checksum = 0;
/*
Forward declaration of functions
*/
void rijndael_dec_init(void);
int rijndael_dec_return(void);
void rijndael_dec_fillrand(unsigned char *buf, int len);
void rijndael_dec_decfile(struct rijndael_dec_FILE *fin, struct aes *ctx);
__attribute__((noinline)) __attribute__((export_name("entrypoint"))) void
rijndael_dec_main(void);
void
rijndael_dec_init(void) {
/* create a pseudo-file for the input*/
rijndael_dec_fin.data = rijndael_dec_data;
rijndael_dec_fin.size = 32768;
rijndael_dec_fin.cur_pos = 0;
unsigned i;
volatile int x = 0;
rijndael_dec_fin.size ^= x;
__pragma_loopbound(32768, 32768);
for (i = 0; i < rijndael_dec_fin.size; i++)
rijndael_dec_fin.data[i] ^= x;
/* this is a pointer to the hexadecimal key digits */
const volatile char *cp =
"1234567890abcdeffedcba09876543211234567890abcdeffedcba0987654321";
char ch;
int by = 0;
i = 0; /* this is a count for the input digits processed */
__pragma_loopbound(64, 64);
while (i < 64 && *cp) { /* the maximum key length is 32 bytes and */
/* hence at most 64 hexadecimal digits */
ch = rijndael_dec_toupper(*cp++); /* process a hexadecimal digit */
if (ch >= '0' && ch <= '9')
by = (by << 4) + ch - '0';
else if (ch >= 'A' && ch <= 'F')
by = (by << 4) + ch - 'A' + 10;
else { /* error if not hexadecimal */
rijndael_dec_checksum = -2;
return;
}
/* store a key byte for each pair of hexadecimal digits */
if (i++ & 1)
rijndael_dec_key[i / 2 - 1] = by & 0xff;
}
if (*cp) {
rijndael_dec_checksum = -3;
return;
} else if (i < 32 || (i & 15)) {
rijndael_dec_checksum = -4;
return;
}
rijndael_dec_key_len = i / 2;
}
int
rijndael_dec_return(void) {
return ((rijndael_dec_checksum == (int) 262180) ? 0 : -1);
}
void
rijndael_dec_decfile(struct rijndael_dec_FILE *fin, struct aes *ctx) {
unsigned char inbuf1[16], inbuf2[16], outbuf[16], *bp1, *bp2, *tp;
int i;
rijndael_dec_fread(inbuf1, 1, 16, fin);
i = rijndael_dec_fread(inbuf2, 1, 16,
fin); /* read 1st encrypted file block */
if (i && i != 16) {
rijndael_dec_checksum = -10;
return;
}
rijndael_dec_decrypt(inbuf2, outbuf, ctx); /* decrypt it */
rijndael_dec_checksum += outbuf[15];
__pragma_loopbound(16, 16);
for (i = 0; i < 16; ++i) /* xor with previous input */
outbuf[i] ^= inbuf1[i];
bp1 = inbuf1; /* set up pointers to two input buffers */
bp2 = inbuf2;
/* TODO: this is necessarily an input-dependent loop bound */
__pragma_loopbound(2046, 2046);
while (1) {
i = rijndael_dec_fread(bp1, 1, 16, fin); /* read next encrypted block */
/* to first input buffer */
if (i != 16) /* no more bytes in input - the decrypted */
break; /* partial final buffer needs to be output */
/* if a block has been read the previous block must have been */
/* full lnegth so we can now write it out */
rijndael_dec_decrypt(bp1, outbuf,
ctx); /* decrypt the new input block and */
rijndael_dec_checksum += outbuf[15];
__pragma_loopbound(16, 16);
for (i = 0; i < 16; ++i) /* xor it with previous
input block */
outbuf[i] ^= bp2[i];
/* swap buffer pointers */
tp = bp1, bp1 = bp2, bp2 = tp;
}
}
__attribute__((noinline)) __attribute__((export_name("entrypoint"))) void
rijndael_dec_main(void) {
struct aes ctx[1];
/* decryption in Cipher Block Chaining mode */
rijndael_dec_set_key(rijndael_dec_key, rijndael_dec_key_len, dec, ctx);
rijndael_dec_decfile(&rijndael_dec_fin, ctx);
}
__attribute__((noinline)) __attribute__((export_name("main"))) int
main() {
rijndael_dec_init();
rijndael_dec_main();
return (rijndael_dec_return());
}

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#include "rijndael_dec_libc.h"
// Wasm loop bounds
__attribute__((import_module("__pragma"), import_name("loopbound"))) extern void
__pragma_loopbound(unsigned int min_bound, unsigned int max_bound);
int
rijndael_dec_toupper(int c) {
if ((c >= 'a') && (c <= 'z'))
return c - 'a' + 'A';
return c;
}
unsigned long
rijndael_dec_fread(void *ptr, unsigned long size, unsigned long count,
struct rijndael_dec_FILE *stream) {
unsigned i = stream->cur_pos, i2 = 0;
unsigned long number_of_chars_to_read =
stream->size - stream->cur_pos >= size * count
? size * count
: stream->size - stream->cur_pos;
__pragma_loopbound(0, 16);
while (i < stream->cur_pos + number_of_chars_to_read)
((unsigned char *) ptr)[i2++] = stream->data[i++];
stream->cur_pos += number_of_chars_to_read;
return number_of_chars_to_read;
}
unsigned long
rijndael_dec_fwrite(const void *ptr, unsigned long size, unsigned long count,
struct rijndael_dec_FILE *stream) {
unsigned i = stream->cur_pos, i2 = 0;
unsigned long number_of_chars_to_write =
stream->size - stream->cur_pos >= size * count
? size * count
: stream->size - stream->cur_pos;
__pragma_loopbound(0, 0);
while (i < stream->cur_pos + number_of_chars_to_write)
stream->data[i++] = ((unsigned char *) ptr)[i2++];
stream->cur_pos += number_of_chars_to_write;
return number_of_chars_to_write;
}
int
rijndael_dec_fseek(struct rijndael_dec_FILE *stream, long int offset,
Origin origin) {
if (origin == RIJNDAEL_DEC_SEEK_SET) {
stream->cur_pos = offset;
return 0;
} else if (origin == RIJNDAEL_DEC_SEEK_CUR) {
stream->cur_pos += offset;
return 0;
} else if (origin == RIJNDAEL_DEC_SEEK_END) {
stream->cur_pos = stream->size + offset;
return 0;
}
return -1;
}
int
rijndael_dec_fgetpos(struct rijndael_dec_FILE *stream, unsigned *position) {
*position = stream->cur_pos;
return 0;
}
int
rijndael_dec_feof(struct rijndael_dec_FILE *stream) {
return stream->cur_pos == stream->size ? 1 : 0;
}

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#ifndef RIJNDAEL_DEC_LIBC_H
#define RIJNDAEL_DEC_LIBC_H
int rijndael_dec_toupper(int c);
enum _Origin_ {
RIJNDAEL_DEC_SEEK_SET,
RIJNDAEL_DEC_SEEK_CUR,
RIJNDAEL_DEC_SEEK_END
};
typedef enum _Origin_ Origin;
struct rijndael_dec_FILE {
unsigned char *data;
unsigned long size;
unsigned cur_pos;
};
unsigned long rijndael_dec_fread(void *ptr, unsigned long size,
unsigned long count,
struct rijndael_dec_FILE *stream);
unsigned long rijndael_dec_fwrite(const void *ptr, unsigned long size,
unsigned long count,
struct rijndael_dec_FILE *stream);
int rijndael_dec_fseek(struct rijndael_dec_FILE *stream, long int offset,
Origin origin);
int rijndael_dec_fgetpos(struct rijndael_dec_FILE *stream, unsigned *position);
int rijndael_dec_feof(struct rijndael_dec_FILE *stream);
#endif // RIJNDAEL_DEC_LIBC_H