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53ac0f7c59
Causes: AES_set_encrypt_key() AES_set_decrypt_key() AES_encrypt() AES_decrypt() to probe for the Intel AES instructions at runtime (only once) and then call the hardware implementations if so, otherwise fall back to the software implementations. BUG: https://bugzilla.samba.org/show_bug.cgi?id=13008 Based on original work by Justin Maggard <jmaggard@netgear.com> Signed-off-by: Jeremy Allison <jra@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
679 lines
29 KiB
C
679 lines
29 KiB
C
/*
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* Copyright (c) 2003-2004 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* $Id$ */
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#ifndef LIB_CRYPTO_AES_H
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#define LIB_CRYPTO_AES_H 1
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#include "aesni.h"
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#define SAMBA_RIJNDAEL 1
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#define SAMBA_AES_CBC_ENCRYPT 1
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#define SAMBA_AES_CFB8_ENCRYPT 1
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#define SAMBA_AES_BLOCK_XOR 1
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/* symbol renaming */
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#define AES_set_encrypt_key samba_AES_set_encrypt_key
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#define AES_set_decrypt_key samba_AES_decrypt_key
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#define AES_encrypt samba_AES_encrypt
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#define AES_decrypt samba_AES_decrypt
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#define AES_cbc_encrypt samba_AES_cbc_encrypt
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#define AES_cfb8_encrypt samba_AES_cfb8_encrypt
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/*
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*
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*/
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#define AES_BLOCK_SIZE 16
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#define AES_MAXNR 14
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#define AES_ENCRYPT 1
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#define AES_DECRYPT 0
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struct aes_key_rj {
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uint32_t key[(AES_MAXNR+1)*4];
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int rounds;
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};
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typedef struct aes_key {
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union {
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struct aes_key_rj aes_rj;
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struct crypto_aesni_ctx aes_ni;
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} u;
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} AES_KEY;
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#ifdef __cplusplus
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extern "C" {
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#endif
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int AES_set_encrypt_key(const unsigned char *, const int, AES_KEY *);
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int AES_set_decrypt_key(const unsigned char *, const int, AES_KEY *);
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void AES_encrypt(const unsigned char *, unsigned char *, const AES_KEY *);
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void AES_decrypt(const unsigned char *, unsigned char *, const AES_KEY *);
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void AES_cbc_encrypt(const unsigned char *, unsigned char *,
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const unsigned long, const AES_KEY *,
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unsigned char *, int);
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void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
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unsigned long size, const AES_KEY *key,
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unsigned char *iv, int forward_encrypt);
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#define aes_cfb8_encrypt(in, out, size, key, iv, forward_encrypt) \
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AES_cfb8_encrypt(in, out, size, key, iv, forward_encrypt)
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#ifdef __cplusplus
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}
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#endif
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#ifdef SAMBA_AES_BLOCK_XOR
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static inline void aes_block_xor(const uint8_t in1[AES_BLOCK_SIZE],
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const uint8_t in2[AES_BLOCK_SIZE],
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uint8_t out[AES_BLOCK_SIZE])
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{
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#define __IS_ALIGN8(p) ((((uintptr_t)(p)) & 0x7) == 0)
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#define __IS_ALIGNED(a,b,c) __IS_ALIGN8(\
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((uintptr_t)(a)) | \
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((uintptr_t)(b)) | \
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((uintptr_t)(c)))
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/* If everything is aligned we can optimize */
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if (likely(__IS_ALIGNED(in1, in2, out))) {
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#define __RO64(p) ((const uint64_t *)(p))
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#define __RW64(p) ((uint64_t *)(p))
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__RW64(out)[0] = __RO64(in1)[0] ^ __RO64(in2)[0];
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__RW64(out)[1] = __RO64(in1)[1] ^ __RO64(in2)[1];
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} else {
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uint64_t i1[2];
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uint64_t i2[2];
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uint64_t o[2];
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memcpy(i1, in1, AES_BLOCK_SIZE);
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memcpy(i2, in2, AES_BLOCK_SIZE);
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o[0] = i1[0] ^ i2[0];
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o[1] = i1[1] ^ i2[1];
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memcpy(out, o, AES_BLOCK_SIZE);
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}
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}
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#endif /* SAMBA_AES_BLOCK_XOR */
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static inline void aes_block_lshift(const uint8_t in[AES_BLOCK_SIZE],
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uint8_t out[AES_BLOCK_SIZE])
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{
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static const struct aes_block_lshift_entry {
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uint8_t lshift;
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uint8_t overflow;
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} aes_block_lshift_table[UINT8_MAX+1] = {
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[0x00] = { .lshift = 0x00, .overflow = 0x00 },
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[0x01] = { .lshift = 0x02, .overflow = 0x00 },
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[0x02] = { .lshift = 0x04, .overflow = 0x00 },
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[0x03] = { .lshift = 0x06, .overflow = 0x00 },
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[0x04] = { .lshift = 0x08, .overflow = 0x00 },
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[0x05] = { .lshift = 0x0a, .overflow = 0x00 },
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[0x06] = { .lshift = 0x0c, .overflow = 0x00 },
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[0x07] = { .lshift = 0x0e, .overflow = 0x00 },
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[0x08] = { .lshift = 0x10, .overflow = 0x00 },
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[0x09] = { .lshift = 0x12, .overflow = 0x00 },
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[0x0a] = { .lshift = 0x14, .overflow = 0x00 },
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[0x0b] = { .lshift = 0x16, .overflow = 0x00 },
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[0x0c] = { .lshift = 0x18, .overflow = 0x00 },
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[0x0d] = { .lshift = 0x1a, .overflow = 0x00 },
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[0x0e] = { .lshift = 0x1c, .overflow = 0x00 },
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[0x0f] = { .lshift = 0x1e, .overflow = 0x00 },
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[0x10] = { .lshift = 0x20, .overflow = 0x00 },
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[0x11] = { .lshift = 0x22, .overflow = 0x00 },
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[0x12] = { .lshift = 0x24, .overflow = 0x00 },
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[0x13] = { .lshift = 0x26, .overflow = 0x00 },
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[0x14] = { .lshift = 0x28, .overflow = 0x00 },
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[0x15] = { .lshift = 0x2a, .overflow = 0x00 },
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[0x16] = { .lshift = 0x2c, .overflow = 0x00 },
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[0x17] = { .lshift = 0x2e, .overflow = 0x00 },
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[0x18] = { .lshift = 0x30, .overflow = 0x00 },
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[0x19] = { .lshift = 0x32, .overflow = 0x00 },
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[0x1a] = { .lshift = 0x34, .overflow = 0x00 },
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[0x1b] = { .lshift = 0x36, .overflow = 0x00 },
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[0x1c] = { .lshift = 0x38, .overflow = 0x00 },
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[0x1d] = { .lshift = 0x3a, .overflow = 0x00 },
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[0x1e] = { .lshift = 0x3c, .overflow = 0x00 },
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[0x1f] = { .lshift = 0x3e, .overflow = 0x00 },
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[0x20] = { .lshift = 0x40, .overflow = 0x00 },
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[0x21] = { .lshift = 0x42, .overflow = 0x00 },
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[0x22] = { .lshift = 0x44, .overflow = 0x00 },
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[0x23] = { .lshift = 0x46, .overflow = 0x00 },
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[0x24] = { .lshift = 0x48, .overflow = 0x00 },
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[0x25] = { .lshift = 0x4a, .overflow = 0x00 },
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[0x26] = { .lshift = 0x4c, .overflow = 0x00 },
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[0x27] = { .lshift = 0x4e, .overflow = 0x00 },
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[0x28] = { .lshift = 0x50, .overflow = 0x00 },
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[0x29] = { .lshift = 0x52, .overflow = 0x00 },
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[0x2a] = { .lshift = 0x54, .overflow = 0x00 },
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[0x2b] = { .lshift = 0x56, .overflow = 0x00 },
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[0x2c] = { .lshift = 0x58, .overflow = 0x00 },
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[0x2d] = { .lshift = 0x5a, .overflow = 0x00 },
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[0x2e] = { .lshift = 0x5c, .overflow = 0x00 },
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[0x2f] = { .lshift = 0x5e, .overflow = 0x00 },
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[0x30] = { .lshift = 0x60, .overflow = 0x00 },
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[0x31] = { .lshift = 0x62, .overflow = 0x00 },
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[0x32] = { .lshift = 0x64, .overflow = 0x00 },
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[0x33] = { .lshift = 0x66, .overflow = 0x00 },
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[0x34] = { .lshift = 0x68, .overflow = 0x00 },
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[0x35] = { .lshift = 0x6a, .overflow = 0x00 },
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[0x36] = { .lshift = 0x6c, .overflow = 0x00 },
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[0x37] = { .lshift = 0x6e, .overflow = 0x00 },
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[0x38] = { .lshift = 0x70, .overflow = 0x00 },
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[0x39] = { .lshift = 0x72, .overflow = 0x00 },
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[0x3a] = { .lshift = 0x74, .overflow = 0x00 },
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[0x3b] = { .lshift = 0x76, .overflow = 0x00 },
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[0x3c] = { .lshift = 0x78, .overflow = 0x00 },
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[0x3d] = { .lshift = 0x7a, .overflow = 0x00 },
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[0x3e] = { .lshift = 0x7c, .overflow = 0x00 },
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[0x3f] = { .lshift = 0x7e, .overflow = 0x00 },
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[0x40] = { .lshift = 0x80, .overflow = 0x00 },
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[0x41] = { .lshift = 0x82, .overflow = 0x00 },
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[0x42] = { .lshift = 0x84, .overflow = 0x00 },
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[0x43] = { .lshift = 0x86, .overflow = 0x00 },
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[0x44] = { .lshift = 0x88, .overflow = 0x00 },
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[0x45] = { .lshift = 0x8a, .overflow = 0x00 },
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[0x46] = { .lshift = 0x8c, .overflow = 0x00 },
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[0x47] = { .lshift = 0x8e, .overflow = 0x00 },
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[0x48] = { .lshift = 0x90, .overflow = 0x00 },
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[0x49] = { .lshift = 0x92, .overflow = 0x00 },
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[0x4a] = { .lshift = 0x94, .overflow = 0x00 },
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[0x4b] = { .lshift = 0x96, .overflow = 0x00 },
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[0x4c] = { .lshift = 0x98, .overflow = 0x00 },
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[0x4d] = { .lshift = 0x9a, .overflow = 0x00 },
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[0x4e] = { .lshift = 0x9c, .overflow = 0x00 },
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[0x4f] = { .lshift = 0x9e, .overflow = 0x00 },
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[0x50] = { .lshift = 0xa0, .overflow = 0x00 },
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[0x51] = { .lshift = 0xa2, .overflow = 0x00 },
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[0x52] = { .lshift = 0xa4, .overflow = 0x00 },
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[0x53] = { .lshift = 0xa6, .overflow = 0x00 },
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[0x54] = { .lshift = 0xa8, .overflow = 0x00 },
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[0x55] = { .lshift = 0xaa, .overflow = 0x00 },
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[0x56] = { .lshift = 0xac, .overflow = 0x00 },
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[0x57] = { .lshift = 0xae, .overflow = 0x00 },
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[0x58] = { .lshift = 0xb0, .overflow = 0x00 },
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[0x59] = { .lshift = 0xb2, .overflow = 0x00 },
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[0x5a] = { .lshift = 0xb4, .overflow = 0x00 },
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[0x5b] = { .lshift = 0xb6, .overflow = 0x00 },
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[0x5c] = { .lshift = 0xb8, .overflow = 0x00 },
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[0x5d] = { .lshift = 0xba, .overflow = 0x00 },
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[0x5e] = { .lshift = 0xbc, .overflow = 0x00 },
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[0x5f] = { .lshift = 0xbe, .overflow = 0x00 },
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[0x60] = { .lshift = 0xc0, .overflow = 0x00 },
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[0x61] = { .lshift = 0xc2, .overflow = 0x00 },
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[0x62] = { .lshift = 0xc4, .overflow = 0x00 },
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[0x63] = { .lshift = 0xc6, .overflow = 0x00 },
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[0x64] = { .lshift = 0xc8, .overflow = 0x00 },
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[0x65] = { .lshift = 0xca, .overflow = 0x00 },
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[0x66] = { .lshift = 0xcc, .overflow = 0x00 },
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[0x67] = { .lshift = 0xce, .overflow = 0x00 },
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[0x68] = { .lshift = 0xd0, .overflow = 0x00 },
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[0x69] = { .lshift = 0xd2, .overflow = 0x00 },
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[0x6a] = { .lshift = 0xd4, .overflow = 0x00 },
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[0x6b] = { .lshift = 0xd6, .overflow = 0x00 },
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[0x6c] = { .lshift = 0xd8, .overflow = 0x00 },
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[0x6d] = { .lshift = 0xda, .overflow = 0x00 },
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[0x6e] = { .lshift = 0xdc, .overflow = 0x00 },
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[0x6f] = { .lshift = 0xde, .overflow = 0x00 },
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[0x70] = { .lshift = 0xe0, .overflow = 0x00 },
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[0x71] = { .lshift = 0xe2, .overflow = 0x00 },
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[0x72] = { .lshift = 0xe4, .overflow = 0x00 },
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[0x73] = { .lshift = 0xe6, .overflow = 0x00 },
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[0x74] = { .lshift = 0xe8, .overflow = 0x00 },
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[0x75] = { .lshift = 0xea, .overflow = 0x00 },
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[0x76] = { .lshift = 0xec, .overflow = 0x00 },
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[0x77] = { .lshift = 0xee, .overflow = 0x00 },
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[0x78] = { .lshift = 0xf0, .overflow = 0x00 },
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[0x79] = { .lshift = 0xf2, .overflow = 0x00 },
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[0x7a] = { .lshift = 0xf4, .overflow = 0x00 },
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[0x7b] = { .lshift = 0xf6, .overflow = 0x00 },
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[0x7c] = { .lshift = 0xf8, .overflow = 0x00 },
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[0x7d] = { .lshift = 0xfa, .overflow = 0x00 },
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[0x7e] = { .lshift = 0xfc, .overflow = 0x00 },
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[0x7f] = { .lshift = 0xfe, .overflow = 0x00 },
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[0x80] = { .lshift = 0x00, .overflow = 0x01 },
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[0x81] = { .lshift = 0x02, .overflow = 0x01 },
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[0x82] = { .lshift = 0x04, .overflow = 0x01 },
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[0x83] = { .lshift = 0x06, .overflow = 0x01 },
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[0x84] = { .lshift = 0x08, .overflow = 0x01 },
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[0x85] = { .lshift = 0x0a, .overflow = 0x01 },
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[0x86] = { .lshift = 0x0c, .overflow = 0x01 },
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[0x87] = { .lshift = 0x0e, .overflow = 0x01 },
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[0x88] = { .lshift = 0x10, .overflow = 0x01 },
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[0x89] = { .lshift = 0x12, .overflow = 0x01 },
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[0x8a] = { .lshift = 0x14, .overflow = 0x01 },
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[0x8b] = { .lshift = 0x16, .overflow = 0x01 },
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[0x8c] = { .lshift = 0x18, .overflow = 0x01 },
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[0x8d] = { .lshift = 0x1a, .overflow = 0x01 },
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[0x8e] = { .lshift = 0x1c, .overflow = 0x01 },
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[0x8f] = { .lshift = 0x1e, .overflow = 0x01 },
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[0x90] = { .lshift = 0x20, .overflow = 0x01 },
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[0x91] = { .lshift = 0x22, .overflow = 0x01 },
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[0x92] = { .lshift = 0x24, .overflow = 0x01 },
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[0x93] = { .lshift = 0x26, .overflow = 0x01 },
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[0x94] = { .lshift = 0x28, .overflow = 0x01 },
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[0x95] = { .lshift = 0x2a, .overflow = 0x01 },
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[0x96] = { .lshift = 0x2c, .overflow = 0x01 },
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[0x97] = { .lshift = 0x2e, .overflow = 0x01 },
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[0x98] = { .lshift = 0x30, .overflow = 0x01 },
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[0x99] = { .lshift = 0x32, .overflow = 0x01 },
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[0x9a] = { .lshift = 0x34, .overflow = 0x01 },
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[0x9b] = { .lshift = 0x36, .overflow = 0x01 },
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[0x9c] = { .lshift = 0x38, .overflow = 0x01 },
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[0x9d] = { .lshift = 0x3a, .overflow = 0x01 },
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[0x9e] = { .lshift = 0x3c, .overflow = 0x01 },
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[0x9f] = { .lshift = 0x3e, .overflow = 0x01 },
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[0xa0] = { .lshift = 0x40, .overflow = 0x01 },
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[0xa1] = { .lshift = 0x42, .overflow = 0x01 },
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[0xa2] = { .lshift = 0x44, .overflow = 0x01 },
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[0xa3] = { .lshift = 0x46, .overflow = 0x01 },
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[0xa4] = { .lshift = 0x48, .overflow = 0x01 },
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[0xa5] = { .lshift = 0x4a, .overflow = 0x01 },
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[0xa6] = { .lshift = 0x4c, .overflow = 0x01 },
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[0xa7] = { .lshift = 0x4e, .overflow = 0x01 },
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[0xa8] = { .lshift = 0x50, .overflow = 0x01 },
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[0xa9] = { .lshift = 0x52, .overflow = 0x01 },
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[0xaa] = { .lshift = 0x54, .overflow = 0x01 },
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[0xab] = { .lshift = 0x56, .overflow = 0x01 },
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[0xac] = { .lshift = 0x58, .overflow = 0x01 },
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[0xad] = { .lshift = 0x5a, .overflow = 0x01 },
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[0xae] = { .lshift = 0x5c, .overflow = 0x01 },
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[0xaf] = { .lshift = 0x5e, .overflow = 0x01 },
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[0xb0] = { .lshift = 0x60, .overflow = 0x01 },
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[0xb1] = { .lshift = 0x62, .overflow = 0x01 },
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[0xb2] = { .lshift = 0x64, .overflow = 0x01 },
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[0xb3] = { .lshift = 0x66, .overflow = 0x01 },
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[0xb4] = { .lshift = 0x68, .overflow = 0x01 },
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[0xb5] = { .lshift = 0x6a, .overflow = 0x01 },
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[0xb6] = { .lshift = 0x6c, .overflow = 0x01 },
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[0xb7] = { .lshift = 0x6e, .overflow = 0x01 },
|
|
[0xb8] = { .lshift = 0x70, .overflow = 0x01 },
|
|
[0xb9] = { .lshift = 0x72, .overflow = 0x01 },
|
|
[0xba] = { .lshift = 0x74, .overflow = 0x01 },
|
|
[0xbb] = { .lshift = 0x76, .overflow = 0x01 },
|
|
[0xbc] = { .lshift = 0x78, .overflow = 0x01 },
|
|
[0xbd] = { .lshift = 0x7a, .overflow = 0x01 },
|
|
[0xbe] = { .lshift = 0x7c, .overflow = 0x01 },
|
|
[0xbf] = { .lshift = 0x7e, .overflow = 0x01 },
|
|
[0xc0] = { .lshift = 0x80, .overflow = 0x01 },
|
|
[0xc1] = { .lshift = 0x82, .overflow = 0x01 },
|
|
[0xc2] = { .lshift = 0x84, .overflow = 0x01 },
|
|
[0xc3] = { .lshift = 0x86, .overflow = 0x01 },
|
|
[0xc4] = { .lshift = 0x88, .overflow = 0x01 },
|
|
[0xc5] = { .lshift = 0x8a, .overflow = 0x01 },
|
|
[0xc6] = { .lshift = 0x8c, .overflow = 0x01 },
|
|
[0xc7] = { .lshift = 0x8e, .overflow = 0x01 },
|
|
[0xc8] = { .lshift = 0x90, .overflow = 0x01 },
|
|
[0xc9] = { .lshift = 0x92, .overflow = 0x01 },
|
|
[0xca] = { .lshift = 0x94, .overflow = 0x01 },
|
|
[0xcb] = { .lshift = 0x96, .overflow = 0x01 },
|
|
[0xcc] = { .lshift = 0x98, .overflow = 0x01 },
|
|
[0xcd] = { .lshift = 0x9a, .overflow = 0x01 },
|
|
[0xce] = { .lshift = 0x9c, .overflow = 0x01 },
|
|
[0xcf] = { .lshift = 0x9e, .overflow = 0x01 },
|
|
[0xd0] = { .lshift = 0xa0, .overflow = 0x01 },
|
|
[0xd1] = { .lshift = 0xa2, .overflow = 0x01 },
|
|
[0xd2] = { .lshift = 0xa4, .overflow = 0x01 },
|
|
[0xd3] = { .lshift = 0xa6, .overflow = 0x01 },
|
|
[0xd4] = { .lshift = 0xa8, .overflow = 0x01 },
|
|
[0xd5] = { .lshift = 0xaa, .overflow = 0x01 },
|
|
[0xd6] = { .lshift = 0xac, .overflow = 0x01 },
|
|
[0xd7] = { .lshift = 0xae, .overflow = 0x01 },
|
|
[0xd8] = { .lshift = 0xb0, .overflow = 0x01 },
|
|
[0xd9] = { .lshift = 0xb2, .overflow = 0x01 },
|
|
[0xda] = { .lshift = 0xb4, .overflow = 0x01 },
|
|
[0xdb] = { .lshift = 0xb6, .overflow = 0x01 },
|
|
[0xdc] = { .lshift = 0xb8, .overflow = 0x01 },
|
|
[0xdd] = { .lshift = 0xba, .overflow = 0x01 },
|
|
[0xde] = { .lshift = 0xbc, .overflow = 0x01 },
|
|
[0xdf] = { .lshift = 0xbe, .overflow = 0x01 },
|
|
[0xe0] = { .lshift = 0xc0, .overflow = 0x01 },
|
|
[0xe1] = { .lshift = 0xc2, .overflow = 0x01 },
|
|
[0xe2] = { .lshift = 0xc4, .overflow = 0x01 },
|
|
[0xe3] = { .lshift = 0xc6, .overflow = 0x01 },
|
|
[0xe4] = { .lshift = 0xc8, .overflow = 0x01 },
|
|
[0xe5] = { .lshift = 0xca, .overflow = 0x01 },
|
|
[0xe6] = { .lshift = 0xcc, .overflow = 0x01 },
|
|
[0xe7] = { .lshift = 0xce, .overflow = 0x01 },
|
|
[0xe8] = { .lshift = 0xd0, .overflow = 0x01 },
|
|
[0xe9] = { .lshift = 0xd2, .overflow = 0x01 },
|
|
[0xea] = { .lshift = 0xd4, .overflow = 0x01 },
|
|
[0xeb] = { .lshift = 0xd6, .overflow = 0x01 },
|
|
[0xec] = { .lshift = 0xd8, .overflow = 0x01 },
|
|
[0xed] = { .lshift = 0xda, .overflow = 0x01 },
|
|
[0xee] = { .lshift = 0xdc, .overflow = 0x01 },
|
|
[0xef] = { .lshift = 0xde, .overflow = 0x01 },
|
|
[0xf0] = { .lshift = 0xe0, .overflow = 0x01 },
|
|
[0xf1] = { .lshift = 0xe2, .overflow = 0x01 },
|
|
[0xf2] = { .lshift = 0xe4, .overflow = 0x01 },
|
|
[0xf3] = { .lshift = 0xe6, .overflow = 0x01 },
|
|
[0xf4] = { .lshift = 0xe8, .overflow = 0x01 },
|
|
[0xf5] = { .lshift = 0xea, .overflow = 0x01 },
|
|
[0xf6] = { .lshift = 0xec, .overflow = 0x01 },
|
|
[0xf7] = { .lshift = 0xee, .overflow = 0x01 },
|
|
[0xf8] = { .lshift = 0xf0, .overflow = 0x01 },
|
|
[0xf9] = { .lshift = 0xf2, .overflow = 0x01 },
|
|
[0xfa] = { .lshift = 0xf4, .overflow = 0x01 },
|
|
[0xfb] = { .lshift = 0xf6, .overflow = 0x01 },
|
|
[0xfc] = { .lshift = 0xf8, .overflow = 0x01 },
|
|
[0xfd] = { .lshift = 0xfa, .overflow = 0x01 },
|
|
[0xfe] = { .lshift = 0xfc, .overflow = 0x01 },
|
|
[0xff] = { .lshift = 0xfe, .overflow = 0x01 },
|
|
};
|
|
int8_t i;
|
|
uint8_t overflow = 0;
|
|
|
|
for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) {
|
|
const struct aes_block_lshift_entry *e = &aes_block_lshift_table[in[i]];
|
|
out[i] = e->lshift | overflow;
|
|
overflow = e->overflow;
|
|
}
|
|
}
|
|
|
|
static inline void aes_block_rshift(const uint8_t in[AES_BLOCK_SIZE],
|
|
uint8_t out[AES_BLOCK_SIZE])
|
|
{
|
|
static const struct aes_block_rshift_entry {
|
|
uint8_t rshift;
|
|
uint8_t overflow;
|
|
} aes_block_rshift_table[UINT8_MAX+1] = {
|
|
[0x00] = { .rshift = 0x00, .overflow = 0x00 },
|
|
[0x01] = { .rshift = 0x00, .overflow = 0x80 },
|
|
[0x02] = { .rshift = 0x01, .overflow = 0x00 },
|
|
[0x03] = { .rshift = 0x01, .overflow = 0x80 },
|
|
[0x04] = { .rshift = 0x02, .overflow = 0x00 },
|
|
[0x05] = { .rshift = 0x02, .overflow = 0x80 },
|
|
[0x06] = { .rshift = 0x03, .overflow = 0x00 },
|
|
[0x07] = { .rshift = 0x03, .overflow = 0x80 },
|
|
[0x08] = { .rshift = 0x04, .overflow = 0x00 },
|
|
[0x09] = { .rshift = 0x04, .overflow = 0x80 },
|
|
[0x0a] = { .rshift = 0x05, .overflow = 0x00 },
|
|
[0x0b] = { .rshift = 0x05, .overflow = 0x80 },
|
|
[0x0c] = { .rshift = 0x06, .overflow = 0x00 },
|
|
[0x0d] = { .rshift = 0x06, .overflow = 0x80 },
|
|
[0x0e] = { .rshift = 0x07, .overflow = 0x00 },
|
|
[0x0f] = { .rshift = 0x07, .overflow = 0x80 },
|
|
[0x10] = { .rshift = 0x08, .overflow = 0x00 },
|
|
[0x11] = { .rshift = 0x08, .overflow = 0x80 },
|
|
[0x12] = { .rshift = 0x09, .overflow = 0x00 },
|
|
[0x13] = { .rshift = 0x09, .overflow = 0x80 },
|
|
[0x14] = { .rshift = 0x0a, .overflow = 0x00 },
|
|
[0x15] = { .rshift = 0x0a, .overflow = 0x80 },
|
|
[0x16] = { .rshift = 0x0b, .overflow = 0x00 },
|
|
[0x17] = { .rshift = 0x0b, .overflow = 0x80 },
|
|
[0x18] = { .rshift = 0x0c, .overflow = 0x00 },
|
|
[0x19] = { .rshift = 0x0c, .overflow = 0x80 },
|
|
[0x1a] = { .rshift = 0x0d, .overflow = 0x00 },
|
|
[0x1b] = { .rshift = 0x0d, .overflow = 0x80 },
|
|
[0x1c] = { .rshift = 0x0e, .overflow = 0x00 },
|
|
[0x1d] = { .rshift = 0x0e, .overflow = 0x80 },
|
|
[0x1e] = { .rshift = 0x0f, .overflow = 0x00 },
|
|
[0x1f] = { .rshift = 0x0f, .overflow = 0x80 },
|
|
[0x20] = { .rshift = 0x10, .overflow = 0x00 },
|
|
[0x21] = { .rshift = 0x10, .overflow = 0x80 },
|
|
[0x22] = { .rshift = 0x11, .overflow = 0x00 },
|
|
[0x23] = { .rshift = 0x11, .overflow = 0x80 },
|
|
[0x24] = { .rshift = 0x12, .overflow = 0x00 },
|
|
[0x25] = { .rshift = 0x12, .overflow = 0x80 },
|
|
[0x26] = { .rshift = 0x13, .overflow = 0x00 },
|
|
[0x27] = { .rshift = 0x13, .overflow = 0x80 },
|
|
[0x28] = { .rshift = 0x14, .overflow = 0x00 },
|
|
[0x29] = { .rshift = 0x14, .overflow = 0x80 },
|
|
[0x2a] = { .rshift = 0x15, .overflow = 0x00 },
|
|
[0x2b] = { .rshift = 0x15, .overflow = 0x80 },
|
|
[0x2c] = { .rshift = 0x16, .overflow = 0x00 },
|
|
[0x2d] = { .rshift = 0x16, .overflow = 0x80 },
|
|
[0x2e] = { .rshift = 0x17, .overflow = 0x00 },
|
|
[0x2f] = { .rshift = 0x17, .overflow = 0x80 },
|
|
[0x30] = { .rshift = 0x18, .overflow = 0x00 },
|
|
[0x31] = { .rshift = 0x18, .overflow = 0x80 },
|
|
[0x32] = { .rshift = 0x19, .overflow = 0x00 },
|
|
[0x33] = { .rshift = 0x19, .overflow = 0x80 },
|
|
[0x34] = { .rshift = 0x1a, .overflow = 0x00 },
|
|
[0x35] = { .rshift = 0x1a, .overflow = 0x80 },
|
|
[0x36] = { .rshift = 0x1b, .overflow = 0x00 },
|
|
[0x37] = { .rshift = 0x1b, .overflow = 0x80 },
|
|
[0x38] = { .rshift = 0x1c, .overflow = 0x00 },
|
|
[0x39] = { .rshift = 0x1c, .overflow = 0x80 },
|
|
[0x3a] = { .rshift = 0x1d, .overflow = 0x00 },
|
|
[0x3b] = { .rshift = 0x1d, .overflow = 0x80 },
|
|
[0x3c] = { .rshift = 0x1e, .overflow = 0x00 },
|
|
[0x3d] = { .rshift = 0x1e, .overflow = 0x80 },
|
|
[0x3e] = { .rshift = 0x1f, .overflow = 0x00 },
|
|
[0x3f] = { .rshift = 0x1f, .overflow = 0x80 },
|
|
[0x40] = { .rshift = 0x20, .overflow = 0x00 },
|
|
[0x41] = { .rshift = 0x20, .overflow = 0x80 },
|
|
[0x42] = { .rshift = 0x21, .overflow = 0x00 },
|
|
[0x43] = { .rshift = 0x21, .overflow = 0x80 },
|
|
[0x44] = { .rshift = 0x22, .overflow = 0x00 },
|
|
[0x45] = { .rshift = 0x22, .overflow = 0x80 },
|
|
[0x46] = { .rshift = 0x23, .overflow = 0x00 },
|
|
[0x47] = { .rshift = 0x23, .overflow = 0x80 },
|
|
[0x48] = { .rshift = 0x24, .overflow = 0x00 },
|
|
[0x49] = { .rshift = 0x24, .overflow = 0x80 },
|
|
[0x4a] = { .rshift = 0x25, .overflow = 0x00 },
|
|
[0x4b] = { .rshift = 0x25, .overflow = 0x80 },
|
|
[0x4c] = { .rshift = 0x26, .overflow = 0x00 },
|
|
[0x4d] = { .rshift = 0x26, .overflow = 0x80 },
|
|
[0x4e] = { .rshift = 0x27, .overflow = 0x00 },
|
|
[0x4f] = { .rshift = 0x27, .overflow = 0x80 },
|
|
[0x50] = { .rshift = 0x28, .overflow = 0x00 },
|
|
[0x51] = { .rshift = 0x28, .overflow = 0x80 },
|
|
[0x52] = { .rshift = 0x29, .overflow = 0x00 },
|
|
[0x53] = { .rshift = 0x29, .overflow = 0x80 },
|
|
[0x54] = { .rshift = 0x2a, .overflow = 0x00 },
|
|
[0x55] = { .rshift = 0x2a, .overflow = 0x80 },
|
|
[0x56] = { .rshift = 0x2b, .overflow = 0x00 },
|
|
[0x57] = { .rshift = 0x2b, .overflow = 0x80 },
|
|
[0x58] = { .rshift = 0x2c, .overflow = 0x00 },
|
|
[0x59] = { .rshift = 0x2c, .overflow = 0x80 },
|
|
[0x5a] = { .rshift = 0x2d, .overflow = 0x00 },
|
|
[0x5b] = { .rshift = 0x2d, .overflow = 0x80 },
|
|
[0x5c] = { .rshift = 0x2e, .overflow = 0x00 },
|
|
[0x5d] = { .rshift = 0x2e, .overflow = 0x80 },
|
|
[0x5e] = { .rshift = 0x2f, .overflow = 0x00 },
|
|
[0x5f] = { .rshift = 0x2f, .overflow = 0x80 },
|
|
[0x60] = { .rshift = 0x30, .overflow = 0x00 },
|
|
[0x61] = { .rshift = 0x30, .overflow = 0x80 },
|
|
[0x62] = { .rshift = 0x31, .overflow = 0x00 },
|
|
[0x63] = { .rshift = 0x31, .overflow = 0x80 },
|
|
[0x64] = { .rshift = 0x32, .overflow = 0x00 },
|
|
[0x65] = { .rshift = 0x32, .overflow = 0x80 },
|
|
[0x66] = { .rshift = 0x33, .overflow = 0x00 },
|
|
[0x67] = { .rshift = 0x33, .overflow = 0x80 },
|
|
[0x68] = { .rshift = 0x34, .overflow = 0x00 },
|
|
[0x69] = { .rshift = 0x34, .overflow = 0x80 },
|
|
[0x6a] = { .rshift = 0x35, .overflow = 0x00 },
|
|
[0x6b] = { .rshift = 0x35, .overflow = 0x80 },
|
|
[0x6c] = { .rshift = 0x36, .overflow = 0x00 },
|
|
[0x6d] = { .rshift = 0x36, .overflow = 0x80 },
|
|
[0x6e] = { .rshift = 0x37, .overflow = 0x00 },
|
|
[0x6f] = { .rshift = 0x37, .overflow = 0x80 },
|
|
[0x70] = { .rshift = 0x38, .overflow = 0x00 },
|
|
[0x71] = { .rshift = 0x38, .overflow = 0x80 },
|
|
[0x72] = { .rshift = 0x39, .overflow = 0x00 },
|
|
[0x73] = { .rshift = 0x39, .overflow = 0x80 },
|
|
[0x74] = { .rshift = 0x3a, .overflow = 0x00 },
|
|
[0x75] = { .rshift = 0x3a, .overflow = 0x80 },
|
|
[0x76] = { .rshift = 0x3b, .overflow = 0x00 },
|
|
[0x77] = { .rshift = 0x3b, .overflow = 0x80 },
|
|
[0x78] = { .rshift = 0x3c, .overflow = 0x00 },
|
|
[0x79] = { .rshift = 0x3c, .overflow = 0x80 },
|
|
[0x7a] = { .rshift = 0x3d, .overflow = 0x00 },
|
|
[0x7b] = { .rshift = 0x3d, .overflow = 0x80 },
|
|
[0x7c] = { .rshift = 0x3e, .overflow = 0x00 },
|
|
[0x7d] = { .rshift = 0x3e, .overflow = 0x80 },
|
|
[0x7e] = { .rshift = 0x3f, .overflow = 0x00 },
|
|
[0x7f] = { .rshift = 0x3f, .overflow = 0x80 },
|
|
[0x80] = { .rshift = 0x40, .overflow = 0x00 },
|
|
[0x81] = { .rshift = 0x40, .overflow = 0x80 },
|
|
[0x82] = { .rshift = 0x41, .overflow = 0x00 },
|
|
[0x83] = { .rshift = 0x41, .overflow = 0x80 },
|
|
[0x84] = { .rshift = 0x42, .overflow = 0x00 },
|
|
[0x85] = { .rshift = 0x42, .overflow = 0x80 },
|
|
[0x86] = { .rshift = 0x43, .overflow = 0x00 },
|
|
[0x87] = { .rshift = 0x43, .overflow = 0x80 },
|
|
[0x88] = { .rshift = 0x44, .overflow = 0x00 },
|
|
[0x89] = { .rshift = 0x44, .overflow = 0x80 },
|
|
[0x8a] = { .rshift = 0x45, .overflow = 0x00 },
|
|
[0x8b] = { .rshift = 0x45, .overflow = 0x80 },
|
|
[0x8c] = { .rshift = 0x46, .overflow = 0x00 },
|
|
[0x8d] = { .rshift = 0x46, .overflow = 0x80 },
|
|
[0x8e] = { .rshift = 0x47, .overflow = 0x00 },
|
|
[0x8f] = { .rshift = 0x47, .overflow = 0x80 },
|
|
[0x90] = { .rshift = 0x48, .overflow = 0x00 },
|
|
[0x91] = { .rshift = 0x48, .overflow = 0x80 },
|
|
[0x92] = { .rshift = 0x49, .overflow = 0x00 },
|
|
[0x93] = { .rshift = 0x49, .overflow = 0x80 },
|
|
[0x94] = { .rshift = 0x4a, .overflow = 0x00 },
|
|
[0x95] = { .rshift = 0x4a, .overflow = 0x80 },
|
|
[0x96] = { .rshift = 0x4b, .overflow = 0x00 },
|
|
[0x97] = { .rshift = 0x4b, .overflow = 0x80 },
|
|
[0x98] = { .rshift = 0x4c, .overflow = 0x00 },
|
|
[0x99] = { .rshift = 0x4c, .overflow = 0x80 },
|
|
[0x9a] = { .rshift = 0x4d, .overflow = 0x00 },
|
|
[0x9b] = { .rshift = 0x4d, .overflow = 0x80 },
|
|
[0x9c] = { .rshift = 0x4e, .overflow = 0x00 },
|
|
[0x9d] = { .rshift = 0x4e, .overflow = 0x80 },
|
|
[0x9e] = { .rshift = 0x4f, .overflow = 0x00 },
|
|
[0x9f] = { .rshift = 0x4f, .overflow = 0x80 },
|
|
[0xa0] = { .rshift = 0x50, .overflow = 0x00 },
|
|
[0xa1] = { .rshift = 0x50, .overflow = 0x80 },
|
|
[0xa2] = { .rshift = 0x51, .overflow = 0x00 },
|
|
[0xa3] = { .rshift = 0x51, .overflow = 0x80 },
|
|
[0xa4] = { .rshift = 0x52, .overflow = 0x00 },
|
|
[0xa5] = { .rshift = 0x52, .overflow = 0x80 },
|
|
[0xa6] = { .rshift = 0x53, .overflow = 0x00 },
|
|
[0xa7] = { .rshift = 0x53, .overflow = 0x80 },
|
|
[0xa8] = { .rshift = 0x54, .overflow = 0x00 },
|
|
[0xa9] = { .rshift = 0x54, .overflow = 0x80 },
|
|
[0xaa] = { .rshift = 0x55, .overflow = 0x00 },
|
|
[0xab] = { .rshift = 0x55, .overflow = 0x80 },
|
|
[0xac] = { .rshift = 0x56, .overflow = 0x00 },
|
|
[0xad] = { .rshift = 0x56, .overflow = 0x80 },
|
|
[0xae] = { .rshift = 0x57, .overflow = 0x00 },
|
|
[0xaf] = { .rshift = 0x57, .overflow = 0x80 },
|
|
[0xb0] = { .rshift = 0x58, .overflow = 0x00 },
|
|
[0xb1] = { .rshift = 0x58, .overflow = 0x80 },
|
|
[0xb2] = { .rshift = 0x59, .overflow = 0x00 },
|
|
[0xb3] = { .rshift = 0x59, .overflow = 0x80 },
|
|
[0xb4] = { .rshift = 0x5a, .overflow = 0x00 },
|
|
[0xb5] = { .rshift = 0x5a, .overflow = 0x80 },
|
|
[0xb6] = { .rshift = 0x5b, .overflow = 0x00 },
|
|
[0xb7] = { .rshift = 0x5b, .overflow = 0x80 },
|
|
[0xb8] = { .rshift = 0x5c, .overflow = 0x00 },
|
|
[0xb9] = { .rshift = 0x5c, .overflow = 0x80 },
|
|
[0xba] = { .rshift = 0x5d, .overflow = 0x00 },
|
|
[0xbb] = { .rshift = 0x5d, .overflow = 0x80 },
|
|
[0xbc] = { .rshift = 0x5e, .overflow = 0x00 },
|
|
[0xbd] = { .rshift = 0x5e, .overflow = 0x80 },
|
|
[0xbe] = { .rshift = 0x5f, .overflow = 0x00 },
|
|
[0xbf] = { .rshift = 0x5f, .overflow = 0x80 },
|
|
[0xc0] = { .rshift = 0x60, .overflow = 0x00 },
|
|
[0xc1] = { .rshift = 0x60, .overflow = 0x80 },
|
|
[0xc2] = { .rshift = 0x61, .overflow = 0x00 },
|
|
[0xc3] = { .rshift = 0x61, .overflow = 0x80 },
|
|
[0xc4] = { .rshift = 0x62, .overflow = 0x00 },
|
|
[0xc5] = { .rshift = 0x62, .overflow = 0x80 },
|
|
[0xc6] = { .rshift = 0x63, .overflow = 0x00 },
|
|
[0xc7] = { .rshift = 0x63, .overflow = 0x80 },
|
|
[0xc8] = { .rshift = 0x64, .overflow = 0x00 },
|
|
[0xc9] = { .rshift = 0x64, .overflow = 0x80 },
|
|
[0xca] = { .rshift = 0x65, .overflow = 0x00 },
|
|
[0xcb] = { .rshift = 0x65, .overflow = 0x80 },
|
|
[0xcc] = { .rshift = 0x66, .overflow = 0x00 },
|
|
[0xcd] = { .rshift = 0x66, .overflow = 0x80 },
|
|
[0xce] = { .rshift = 0x67, .overflow = 0x00 },
|
|
[0xcf] = { .rshift = 0x67, .overflow = 0x80 },
|
|
[0xd0] = { .rshift = 0x68, .overflow = 0x00 },
|
|
[0xd1] = { .rshift = 0x68, .overflow = 0x80 },
|
|
[0xd2] = { .rshift = 0x69, .overflow = 0x00 },
|
|
[0xd3] = { .rshift = 0x69, .overflow = 0x80 },
|
|
[0xd4] = { .rshift = 0x6a, .overflow = 0x00 },
|
|
[0xd5] = { .rshift = 0x6a, .overflow = 0x80 },
|
|
[0xd6] = { .rshift = 0x6b, .overflow = 0x00 },
|
|
[0xd7] = { .rshift = 0x6b, .overflow = 0x80 },
|
|
[0xd8] = { .rshift = 0x6c, .overflow = 0x00 },
|
|
[0xd9] = { .rshift = 0x6c, .overflow = 0x80 },
|
|
[0xda] = { .rshift = 0x6d, .overflow = 0x00 },
|
|
[0xdb] = { .rshift = 0x6d, .overflow = 0x80 },
|
|
[0xdc] = { .rshift = 0x6e, .overflow = 0x00 },
|
|
[0xdd] = { .rshift = 0x6e, .overflow = 0x80 },
|
|
[0xde] = { .rshift = 0x6f, .overflow = 0x00 },
|
|
[0xdf] = { .rshift = 0x6f, .overflow = 0x80 },
|
|
[0xe0] = { .rshift = 0x70, .overflow = 0x00 },
|
|
[0xe1] = { .rshift = 0x70, .overflow = 0x80 },
|
|
[0xe2] = { .rshift = 0x71, .overflow = 0x00 },
|
|
[0xe3] = { .rshift = 0x71, .overflow = 0x80 },
|
|
[0xe4] = { .rshift = 0x72, .overflow = 0x00 },
|
|
[0xe5] = { .rshift = 0x72, .overflow = 0x80 },
|
|
[0xe6] = { .rshift = 0x73, .overflow = 0x00 },
|
|
[0xe7] = { .rshift = 0x73, .overflow = 0x80 },
|
|
[0xe8] = { .rshift = 0x74, .overflow = 0x00 },
|
|
[0xe9] = { .rshift = 0x74, .overflow = 0x80 },
|
|
[0xea] = { .rshift = 0x75, .overflow = 0x00 },
|
|
[0xeb] = { .rshift = 0x75, .overflow = 0x80 },
|
|
[0xec] = { .rshift = 0x76, .overflow = 0x00 },
|
|
[0xed] = { .rshift = 0x76, .overflow = 0x80 },
|
|
[0xee] = { .rshift = 0x77, .overflow = 0x00 },
|
|
[0xef] = { .rshift = 0x77, .overflow = 0x80 },
|
|
[0xf0] = { .rshift = 0x78, .overflow = 0x00 },
|
|
[0xf1] = { .rshift = 0x78, .overflow = 0x80 },
|
|
[0xf2] = { .rshift = 0x79, .overflow = 0x00 },
|
|
[0xf3] = { .rshift = 0x79, .overflow = 0x80 },
|
|
[0xf4] = { .rshift = 0x7a, .overflow = 0x00 },
|
|
[0xf5] = { .rshift = 0x7a, .overflow = 0x80 },
|
|
[0xf6] = { .rshift = 0x7b, .overflow = 0x00 },
|
|
[0xf7] = { .rshift = 0x7b, .overflow = 0x80 },
|
|
[0xf8] = { .rshift = 0x7c, .overflow = 0x00 },
|
|
[0xf9] = { .rshift = 0x7c, .overflow = 0x80 },
|
|
[0xfa] = { .rshift = 0x7d, .overflow = 0x00 },
|
|
[0xfb] = { .rshift = 0x7d, .overflow = 0x80 },
|
|
[0xfc] = { .rshift = 0x7e, .overflow = 0x00 },
|
|
[0xfd] = { .rshift = 0x7e, .overflow = 0x80 },
|
|
[0xfe] = { .rshift = 0x7f, .overflow = 0x00 },
|
|
[0xff] = { .rshift = 0x7f, .overflow = 0x80 },
|
|
};
|
|
uint8_t i;
|
|
uint8_t overflow = 0;
|
|
|
|
for (i = 0; i < AES_BLOCK_SIZE; i++) {
|
|
const struct aes_block_rshift_entry *e = &aes_block_rshift_table[in[i]];
|
|
out[i] = e->rshift | overflow;
|
|
overflow = e->overflow;
|
|
}
|
|
}
|
|
#endif /* LIB_CRYPTO_AES_H */
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