3 This file is part of the AVR-Crypto-Lib.
4 Copyright (C) 2008, 2009 Daniel Otte (daniel.otte@rub.de)
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * \email daniel.otte@rub.de
24 * \license GPLv3 or later
28 #include "avr-asm-macros.S"
57 void aes_encrypt_core(aes_cipher_state_t* state, const aes_genctx_t* ks, uint8_t rounds)
83 * param state: r24:r25
87 .global aes_encrypt_core
105 ldi xREDUCER, 0x1b /* load reducer */
106 ldi r31, hi8(aes_sbox)
137 /* encryption loop */
139 /* SBOX substitution and shifting */
180 /* mixcols (or rows in our case) */
191 eor ST\row\()0, ST\row\()1
195 eor ST\row\()0, xREDUCER
196 3: eor ST\row\()0, r0
221 /* mix colums (rows) done */