AES_RETURN aes_xi(encrypt_key256)(const unsigned char *key, aes_encrypt_ctx cx[1])
{ uint32_t ss[8];
cx->ks[0] = ss[0] = word_in(key, 0);
cx->ks[1] = ss[1] = word_in(key, 1);
cx->ks[2] = ss[2] = word_in(key, 2);
cx->ks[3] = ss[3] = word_in(key, 3);
cx->ks[4] = ss[4] = word_in(key, 4);
cx->ks[5] = ss[5] = word_in(key, 5);
cx->ks[6] = ss[6] = word_in(key, 6);
cx->ks[7] = ss[7] = word_in(key, 7);
#ifdef ENC_KS_UNROLL
ke8(cx->ks, 0); ke8(cx->ks, 1);
ke8(cx->ks, 2); ke8(cx->ks, 3);
ke8(cx->ks, 4); ke8(cx->ks, 5);
#else
{ uint32_t i;
for(i = 0; i < 6; ++i)
ke8(cx->ks, i);
}
#endif
kef8(cx->ks, 6);
cx->inf.l = 0;
cx->inf.b[0] = 14 * 16;
#ifdef USE_VIA_ACE_IF_PRESENT
if(VIA_ACE_AVAILABLE)
cx->inf.b[1] = 0xff;
#endif
return EXIT_SUCCESS;
}
static void
aes_encrypt_key256(const unsigned char *key, uint32_t rk[])
{
uint32_t ss[8];
rk[0] = ss[0] = word_in(key, 0);
rk[1] = ss[1] = word_in(key, 1);
rk[2] = ss[2] = word_in(key, 2);
rk[3] = ss[3] = word_in(key, 3);
rk[4] = ss[4] = word_in(key, 4);
rk[5] = ss[5] = word_in(key, 5);
rk[6] = ss[6] = word_in(key, 6);
rk[7] = ss[7] = word_in(key, 7);
#ifdef ENC_KS_UNROLL
ke8(rk, 0); ke8(rk, 1);
ke8(rk, 2); ke8(rk, 3);
ke8(rk, 4); ke8(rk, 5);
#else
{
uint32_t i;
for (i = 0; i < 6; ++i)
ke8(rk, i);
}
#endif /* ENC_KS_UNROLL */
kef8(rk, 6);
}
