DES3_EDE_EXPKEY_WORDS
u64 encrypt_expkey[DES3_EDE_EXPKEY_WORDS / 2];
u64 decrypt_expkey[DES3_EDE_EXPKEY_WORDS / 2];
j = DES3_EDE_EXPKEY_WORDS - 2;
for (i = 0; i < DES3_EDE_EXPKEY_WORDS; i += 2, j -= 2) {
u32 expkey[DES3_EDE_EXPKEY_WORDS];
const u32 *K = dctx->expkey + DES3_EDE_EXPKEY_WORDS - 2;