mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
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3c91e22576
commit f94909ceb1 upstream.
Replace all ret/retq instructions with RET in preparation of making
RET a macro. Since AS is case insensitive it's a big no-op without
RET defined.
find arch/x86/ -name \*.S | while read file
do
sed -i 's/\<ret[q]*\>/RET/' $file
done
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211204134907.905503893@infradead.org
[bwh: Backported to 5.10: ran the above command]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1404 lines
38 KiB
ArmAsm
1404 lines
38 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* x86_64/AVX2/AES-NI assembler implementation of Camellia
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*
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* Copyright © 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
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*/
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#include <linux/linkage.h>
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#include <asm/frame.h>
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#include <asm/nospec-branch.h>
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#define CAMELLIA_TABLE_BYTE_LEN 272
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/* struct camellia_ctx: */
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#define key_table 0
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#define key_length CAMELLIA_TABLE_BYTE_LEN
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/* register macros */
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#define CTX %rdi
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#define RIO %r8
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/**********************************************************************
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helper macros
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**********************************************************************/
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#define filter_8bit(x, lo_t, hi_t, mask4bit, tmp0) \
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vpand x, mask4bit, tmp0; \
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vpandn x, mask4bit, x; \
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vpsrld $4, x, x; \
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\
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vpshufb tmp0, lo_t, tmp0; \
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vpshufb x, hi_t, x; \
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vpxor tmp0, x, x;
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#define ymm0_x xmm0
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#define ymm1_x xmm1
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#define ymm2_x xmm2
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#define ymm3_x xmm3
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#define ymm4_x xmm4
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#define ymm5_x xmm5
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#define ymm6_x xmm6
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#define ymm7_x xmm7
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#define ymm8_x xmm8
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#define ymm9_x xmm9
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#define ymm10_x xmm10
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#define ymm11_x xmm11
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#define ymm12_x xmm12
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#define ymm13_x xmm13
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#define ymm14_x xmm14
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#define ymm15_x xmm15
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/**********************************************************************
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32-way camellia
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**********************************************************************/
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/*
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* IN:
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* x0..x7: byte-sliced AB state
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* mem_cd: register pointer storing CD state
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* key: index for key material
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* OUT:
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* x0..x7: new byte-sliced CD state
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*/
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#define roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, t0, t1, t2, t3, t4, t5, t6, \
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t7, mem_cd, key) \
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/* \
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* S-function with AES subbytes \
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*/ \
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vbroadcasti128 .Linv_shift_row, t4; \
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vpbroadcastd .L0f0f0f0f, t7; \
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vbroadcasti128 .Lpre_tf_lo_s1, t5; \
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vbroadcasti128 .Lpre_tf_hi_s1, t6; \
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vbroadcasti128 .Lpre_tf_lo_s4, t2; \
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vbroadcasti128 .Lpre_tf_hi_s4, t3; \
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\
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/* AES inverse shift rows */ \
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vpshufb t4, x0, x0; \
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vpshufb t4, x7, x7; \
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vpshufb t4, x3, x3; \
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vpshufb t4, x6, x6; \
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vpshufb t4, x2, x2; \
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vpshufb t4, x5, x5; \
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vpshufb t4, x1, x1; \
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vpshufb t4, x4, x4; \
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\
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/* prefilter sboxes 1, 2 and 3 */ \
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/* prefilter sbox 4 */ \
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filter_8bit(x0, t5, t6, t7, t4); \
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filter_8bit(x7, t5, t6, t7, t4); \
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vextracti128 $1, x0, t0##_x; \
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vextracti128 $1, x7, t1##_x; \
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filter_8bit(x3, t2, t3, t7, t4); \
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filter_8bit(x6, t2, t3, t7, t4); \
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vextracti128 $1, x3, t3##_x; \
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vextracti128 $1, x6, t2##_x; \
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filter_8bit(x2, t5, t6, t7, t4); \
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filter_8bit(x5, t5, t6, t7, t4); \
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filter_8bit(x1, t5, t6, t7, t4); \
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filter_8bit(x4, t5, t6, t7, t4); \
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\
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vpxor t4##_x, t4##_x, t4##_x; \
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\
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/* AES subbytes + AES shift rows */ \
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vextracti128 $1, x2, t6##_x; \
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vextracti128 $1, x5, t5##_x; \
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vaesenclast t4##_x, x0##_x, x0##_x; \
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vaesenclast t4##_x, t0##_x, t0##_x; \
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vinserti128 $1, t0##_x, x0, x0; \
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vaesenclast t4##_x, x7##_x, x7##_x; \
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vaesenclast t4##_x, t1##_x, t1##_x; \
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vinserti128 $1, t1##_x, x7, x7; \
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vaesenclast t4##_x, x3##_x, x3##_x; \
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vaesenclast t4##_x, t3##_x, t3##_x; \
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vinserti128 $1, t3##_x, x3, x3; \
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vaesenclast t4##_x, x6##_x, x6##_x; \
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vaesenclast t4##_x, t2##_x, t2##_x; \
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vinserti128 $1, t2##_x, x6, x6; \
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vextracti128 $1, x1, t3##_x; \
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vextracti128 $1, x4, t2##_x; \
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vbroadcasti128 .Lpost_tf_lo_s1, t0; \
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vbroadcasti128 .Lpost_tf_hi_s1, t1; \
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vaesenclast t4##_x, x2##_x, x2##_x; \
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vaesenclast t4##_x, t6##_x, t6##_x; \
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vinserti128 $1, t6##_x, x2, x2; \
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vaesenclast t4##_x, x5##_x, x5##_x; \
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vaesenclast t4##_x, t5##_x, t5##_x; \
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vinserti128 $1, t5##_x, x5, x5; \
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vaesenclast t4##_x, x1##_x, x1##_x; \
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vaesenclast t4##_x, t3##_x, t3##_x; \
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vinserti128 $1, t3##_x, x1, x1; \
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vaesenclast t4##_x, x4##_x, x4##_x; \
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vaesenclast t4##_x, t2##_x, t2##_x; \
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vinserti128 $1, t2##_x, x4, x4; \
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\
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/* postfilter sboxes 1 and 4 */ \
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vbroadcasti128 .Lpost_tf_lo_s3, t2; \
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vbroadcasti128 .Lpost_tf_hi_s3, t3; \
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filter_8bit(x0, t0, t1, t7, t6); \
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filter_8bit(x7, t0, t1, t7, t6); \
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filter_8bit(x3, t0, t1, t7, t6); \
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filter_8bit(x6, t0, t1, t7, t6); \
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\
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/* postfilter sbox 3 */ \
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vbroadcasti128 .Lpost_tf_lo_s2, t4; \
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vbroadcasti128 .Lpost_tf_hi_s2, t5; \
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filter_8bit(x2, t2, t3, t7, t6); \
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filter_8bit(x5, t2, t3, t7, t6); \
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\
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vpbroadcastq key, t0; /* higher 64-bit duplicate ignored */ \
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\
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/* postfilter sbox 2 */ \
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filter_8bit(x1, t4, t5, t7, t2); \
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filter_8bit(x4, t4, t5, t7, t2); \
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vpxor t7, t7, t7; \
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\
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vpsrldq $1, t0, t1; \
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vpsrldq $2, t0, t2; \
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vpshufb t7, t1, t1; \
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vpsrldq $3, t0, t3; \
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\
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/* P-function */ \
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vpxor x5, x0, x0; \
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vpxor x6, x1, x1; \
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vpxor x7, x2, x2; \
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vpxor x4, x3, x3; \
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\
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vpshufb t7, t2, t2; \
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vpsrldq $4, t0, t4; \
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vpshufb t7, t3, t3; \
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vpsrldq $5, t0, t5; \
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vpshufb t7, t4, t4; \
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\
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vpxor x2, x4, x4; \
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vpxor x3, x5, x5; \
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vpxor x0, x6, x6; \
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vpxor x1, x7, x7; \
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\
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vpsrldq $6, t0, t6; \
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vpshufb t7, t5, t5; \
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vpshufb t7, t6, t6; \
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\
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vpxor x7, x0, x0; \
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vpxor x4, x1, x1; \
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vpxor x5, x2, x2; \
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vpxor x6, x3, x3; \
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\
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vpxor x3, x4, x4; \
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vpxor x0, x5, x5; \
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vpxor x1, x6, x6; \
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vpxor x2, x7, x7; /* note: high and low parts swapped */ \
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\
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/* Add key material and result to CD (x becomes new CD) */ \
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\
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vpxor t6, x1, x1; \
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vpxor 5 * 32(mem_cd), x1, x1; \
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\
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vpsrldq $7, t0, t6; \
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vpshufb t7, t0, t0; \
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vpshufb t7, t6, t7; \
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\
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vpxor t7, x0, x0; \
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vpxor 4 * 32(mem_cd), x0, x0; \
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\
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vpxor t5, x2, x2; \
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vpxor 6 * 32(mem_cd), x2, x2; \
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\
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vpxor t4, x3, x3; \
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vpxor 7 * 32(mem_cd), x3, x3; \
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\
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vpxor t3, x4, x4; \
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vpxor 0 * 32(mem_cd), x4, x4; \
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\
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vpxor t2, x5, x5; \
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vpxor 1 * 32(mem_cd), x5, x5; \
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\
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vpxor t1, x6, x6; \
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vpxor 2 * 32(mem_cd), x6, x6; \
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\
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vpxor t0, x7, x7; \
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vpxor 3 * 32(mem_cd), x7, x7;
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/*
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* Size optimization... with inlined roundsm32 binary would be over 5 times
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* larger and would only marginally faster.
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*/
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.align 8
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SYM_FUNC_START_LOCAL(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
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roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
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%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
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%rcx, (%r9));
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RET;
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SYM_FUNC_END(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
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.align 8
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SYM_FUNC_START_LOCAL(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
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roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3,
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%ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11,
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%rax, (%r9));
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RET;
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SYM_FUNC_END(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
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/*
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* IN/OUT:
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* x0..x7: byte-sliced AB state preloaded
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* mem_ab: byte-sliced AB state in memory
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* mem_cb: byte-sliced CD state in memory
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*/
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#define two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
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y6, y7, mem_ab, mem_cd, i, dir, store_ab) \
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leaq (key_table + (i) * 8)(CTX), %r9; \
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call roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd; \
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\
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vmovdqu x0, 4 * 32(mem_cd); \
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vmovdqu x1, 5 * 32(mem_cd); \
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vmovdqu x2, 6 * 32(mem_cd); \
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vmovdqu x3, 7 * 32(mem_cd); \
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vmovdqu x4, 0 * 32(mem_cd); \
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vmovdqu x5, 1 * 32(mem_cd); \
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vmovdqu x6, 2 * 32(mem_cd); \
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vmovdqu x7, 3 * 32(mem_cd); \
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\
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leaq (key_table + ((i) + (dir)) * 8)(CTX), %r9; \
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call roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab; \
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\
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store_ab(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab);
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#define dummy_store(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) /* do nothing */
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#define store_ab_state(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) \
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/* Store new AB state */ \
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vmovdqu x4, 4 * 32(mem_ab); \
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vmovdqu x5, 5 * 32(mem_ab); \
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vmovdqu x6, 6 * 32(mem_ab); \
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vmovdqu x7, 7 * 32(mem_ab); \
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vmovdqu x0, 0 * 32(mem_ab); \
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vmovdqu x1, 1 * 32(mem_ab); \
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vmovdqu x2, 2 * 32(mem_ab); \
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vmovdqu x3, 3 * 32(mem_ab);
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#define enc_rounds32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
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y6, y7, mem_ab, mem_cd, i) \
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two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
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y6, y7, mem_ab, mem_cd, (i) + 2, 1, store_ab_state); \
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two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
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y6, y7, mem_ab, mem_cd, (i) + 4, 1, store_ab_state); \
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two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
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y6, y7, mem_ab, mem_cd, (i) + 6, 1, dummy_store);
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#define dec_rounds32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
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y6, y7, mem_ab, mem_cd, i) \
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two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
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y6, y7, mem_ab, mem_cd, (i) + 7, -1, store_ab_state); \
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two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
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y6, y7, mem_ab, mem_cd, (i) + 5, -1, store_ab_state); \
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two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
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y6, y7, mem_ab, mem_cd, (i) + 3, -1, dummy_store);
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/*
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* IN:
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* v0..3: byte-sliced 32-bit integers
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* OUT:
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* v0..3: (IN <<< 1)
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*/
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#define rol32_1_32(v0, v1, v2, v3, t0, t1, t2, zero) \
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vpcmpgtb v0, zero, t0; \
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vpaddb v0, v0, v0; \
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vpabsb t0, t0; \
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\
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vpcmpgtb v1, zero, t1; \
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vpaddb v1, v1, v1; \
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vpabsb t1, t1; \
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\
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vpcmpgtb v2, zero, t2; \
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vpaddb v2, v2, v2; \
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vpabsb t2, t2; \
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\
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vpor t0, v1, v1; \
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\
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vpcmpgtb v3, zero, t0; \
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vpaddb v3, v3, v3; \
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vpabsb t0, t0; \
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\
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vpor t1, v2, v2; \
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vpor t2, v3, v3; \
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vpor t0, v0, v0;
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/*
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* IN:
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* r: byte-sliced AB state in memory
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* l: byte-sliced CD state in memory
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* OUT:
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* x0..x7: new byte-sliced CD state
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*/
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#define fls32(l, l0, l1, l2, l3, l4, l5, l6, l7, r, t0, t1, t2, t3, tt0, \
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tt1, tt2, tt3, kll, klr, krl, krr) \
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/* \
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* t0 = kll; \
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* t0 &= ll; \
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* lr ^= rol32(t0, 1); \
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*/ \
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vpbroadcastd kll, t0; /* only lowest 32-bit used */ \
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vpxor tt0, tt0, tt0; \
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vpshufb tt0, t0, t3; \
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vpsrldq $1, t0, t0; \
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vpshufb tt0, t0, t2; \
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vpsrldq $1, t0, t0; \
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vpshufb tt0, t0, t1; \
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vpsrldq $1, t0, t0; \
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vpshufb tt0, t0, t0; \
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\
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vpand l0, t0, t0; \
|
||
vpand l1, t1, t1; \
|
||
vpand l2, t2, t2; \
|
||
vpand l3, t3, t3; \
|
||
\
|
||
rol32_1_32(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \
|
||
\
|
||
vpxor l4, t0, l4; \
|
||
vpbroadcastd krr, t0; /* only lowest 32-bit used */ \
|
||
vmovdqu l4, 4 * 32(l); \
|
||
vpxor l5, t1, l5; \
|
||
vmovdqu l5, 5 * 32(l); \
|
||
vpxor l6, t2, l6; \
|
||
vmovdqu l6, 6 * 32(l); \
|
||
vpxor l7, t3, l7; \
|
||
vmovdqu l7, 7 * 32(l); \
|
||
\
|
||
/* \
|
||
* t2 = krr; \
|
||
* t2 |= rr; \
|
||
* rl ^= t2; \
|
||
*/ \
|
||
\
|
||
vpshufb tt0, t0, t3; \
|
||
vpsrldq $1, t0, t0; \
|
||
vpshufb tt0, t0, t2; \
|
||
vpsrldq $1, t0, t0; \
|
||
vpshufb tt0, t0, t1; \
|
||
vpsrldq $1, t0, t0; \
|
||
vpshufb tt0, t0, t0; \
|
||
\
|
||
vpor 4 * 32(r), t0, t0; \
|
||
vpor 5 * 32(r), t1, t1; \
|
||
vpor 6 * 32(r), t2, t2; \
|
||
vpor 7 * 32(r), t3, t3; \
|
||
\
|
||
vpxor 0 * 32(r), t0, t0; \
|
||
vpxor 1 * 32(r), t1, t1; \
|
||
vpxor 2 * 32(r), t2, t2; \
|
||
vpxor 3 * 32(r), t3, t3; \
|
||
vmovdqu t0, 0 * 32(r); \
|
||
vpbroadcastd krl, t0; /* only lowest 32-bit used */ \
|
||
vmovdqu t1, 1 * 32(r); \
|
||
vmovdqu t2, 2 * 32(r); \
|
||
vmovdqu t3, 3 * 32(r); \
|
||
\
|
||
/* \
|
||
* t2 = krl; \
|
||
* t2 &= rl; \
|
||
* rr ^= rol32(t2, 1); \
|
||
*/ \
|
||
vpshufb tt0, t0, t3; \
|
||
vpsrldq $1, t0, t0; \
|
||
vpshufb tt0, t0, t2; \
|
||
vpsrldq $1, t0, t0; \
|
||
vpshufb tt0, t0, t1; \
|
||
vpsrldq $1, t0, t0; \
|
||
vpshufb tt0, t0, t0; \
|
||
\
|
||
vpand 0 * 32(r), t0, t0; \
|
||
vpand 1 * 32(r), t1, t1; \
|
||
vpand 2 * 32(r), t2, t2; \
|
||
vpand 3 * 32(r), t3, t3; \
|
||
\
|
||
rol32_1_32(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \
|
||
\
|
||
vpxor 4 * 32(r), t0, t0; \
|
||
vpxor 5 * 32(r), t1, t1; \
|
||
vpxor 6 * 32(r), t2, t2; \
|
||
vpxor 7 * 32(r), t3, t3; \
|
||
vmovdqu t0, 4 * 32(r); \
|
||
vpbroadcastd klr, t0; /* only lowest 32-bit used */ \
|
||
vmovdqu t1, 5 * 32(r); \
|
||
vmovdqu t2, 6 * 32(r); \
|
||
vmovdqu t3, 7 * 32(r); \
|
||
\
|
||
/* \
|
||
* t0 = klr; \
|
||
* t0 |= lr; \
|
||
* ll ^= t0; \
|
||
*/ \
|
||
\
|
||
vpshufb tt0, t0, t3; \
|
||
vpsrldq $1, t0, t0; \
|
||
vpshufb tt0, t0, t2; \
|
||
vpsrldq $1, t0, t0; \
|
||
vpshufb tt0, t0, t1; \
|
||
vpsrldq $1, t0, t0; \
|
||
vpshufb tt0, t0, t0; \
|
||
\
|
||
vpor l4, t0, t0; \
|
||
vpor l5, t1, t1; \
|
||
vpor l6, t2, t2; \
|
||
vpor l7, t3, t3; \
|
||
\
|
||
vpxor l0, t0, l0; \
|
||
vmovdqu l0, 0 * 32(l); \
|
||
vpxor l1, t1, l1; \
|
||
vmovdqu l1, 1 * 32(l); \
|
||
vpxor l2, t2, l2; \
|
||
vmovdqu l2, 2 * 32(l); \
|
||
vpxor l3, t3, l3; \
|
||
vmovdqu l3, 3 * 32(l);
|
||
|
||
#define transpose_4x4(x0, x1, x2, x3, t1, t2) \
|
||
vpunpckhdq x1, x0, t2; \
|
||
vpunpckldq x1, x0, x0; \
|
||
\
|
||
vpunpckldq x3, x2, t1; \
|
||
vpunpckhdq x3, x2, x2; \
|
||
\
|
||
vpunpckhqdq t1, x0, x1; \
|
||
vpunpcklqdq t1, x0, x0; \
|
||
\
|
||
vpunpckhqdq x2, t2, x3; \
|
||
vpunpcklqdq x2, t2, x2;
|
||
|
||
#define byteslice_16x16b_fast(a0, b0, c0, d0, a1, b1, c1, d1, a2, b2, c2, d2, \
|
||
a3, b3, c3, d3, st0, st1) \
|
||
vmovdqu d2, st0; \
|
||
vmovdqu d3, st1; \
|
||
transpose_4x4(a0, a1, a2, a3, d2, d3); \
|
||
transpose_4x4(b0, b1, b2, b3, d2, d3); \
|
||
vmovdqu st0, d2; \
|
||
vmovdqu st1, d3; \
|
||
\
|
||
vmovdqu a0, st0; \
|
||
vmovdqu a1, st1; \
|
||
transpose_4x4(c0, c1, c2, c3, a0, a1); \
|
||
transpose_4x4(d0, d1, d2, d3, a0, a1); \
|
||
\
|
||
vbroadcasti128 .Lshufb_16x16b, a0; \
|
||
vmovdqu st1, a1; \
|
||
vpshufb a0, a2, a2; \
|
||
vpshufb a0, a3, a3; \
|
||
vpshufb a0, b0, b0; \
|
||
vpshufb a0, b1, b1; \
|
||
vpshufb a0, b2, b2; \
|
||
vpshufb a0, b3, b3; \
|
||
vpshufb a0, a1, a1; \
|
||
vpshufb a0, c0, c0; \
|
||
vpshufb a0, c1, c1; \
|
||
vpshufb a0, c2, c2; \
|
||
vpshufb a0, c3, c3; \
|
||
vpshufb a0, d0, d0; \
|
||
vpshufb a0, d1, d1; \
|
||
vpshufb a0, d2, d2; \
|
||
vpshufb a0, d3, d3; \
|
||
vmovdqu d3, st1; \
|
||
vmovdqu st0, d3; \
|
||
vpshufb a0, d3, a0; \
|
||
vmovdqu d2, st0; \
|
||
\
|
||
transpose_4x4(a0, b0, c0, d0, d2, d3); \
|
||
transpose_4x4(a1, b1, c1, d1, d2, d3); \
|
||
vmovdqu st0, d2; \
|
||
vmovdqu st1, d3; \
|
||
\
|
||
vmovdqu b0, st0; \
|
||
vmovdqu b1, st1; \
|
||
transpose_4x4(a2, b2, c2, d2, b0, b1); \
|
||
transpose_4x4(a3, b3, c3, d3, b0, b1); \
|
||
vmovdqu st0, b0; \
|
||
vmovdqu st1, b1; \
|
||
/* does not adjust output bytes inside vectors */
|
||
|
||
/* load blocks to registers and apply pre-whitening */
|
||
#define inpack32_pre(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
|
||
y6, y7, rio, key) \
|
||
vpbroadcastq key, x0; \
|
||
vpshufb .Lpack_bswap, x0, x0; \
|
||
\
|
||
vpxor 0 * 32(rio), x0, y7; \
|
||
vpxor 1 * 32(rio), x0, y6; \
|
||
vpxor 2 * 32(rio), x0, y5; \
|
||
vpxor 3 * 32(rio), x0, y4; \
|
||
vpxor 4 * 32(rio), x0, y3; \
|
||
vpxor 5 * 32(rio), x0, y2; \
|
||
vpxor 6 * 32(rio), x0, y1; \
|
||
vpxor 7 * 32(rio), x0, y0; \
|
||
vpxor 8 * 32(rio), x0, x7; \
|
||
vpxor 9 * 32(rio), x0, x6; \
|
||
vpxor 10 * 32(rio), x0, x5; \
|
||
vpxor 11 * 32(rio), x0, x4; \
|
||
vpxor 12 * 32(rio), x0, x3; \
|
||
vpxor 13 * 32(rio), x0, x2; \
|
||
vpxor 14 * 32(rio), x0, x1; \
|
||
vpxor 15 * 32(rio), x0, x0;
|
||
|
||
/* byteslice pre-whitened blocks and store to temporary memory */
|
||
#define inpack32_post(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
|
||
y6, y7, mem_ab, mem_cd) \
|
||
byteslice_16x16b_fast(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, \
|
||
y4, y5, y6, y7, (mem_ab), (mem_cd)); \
|
||
\
|
||
vmovdqu x0, 0 * 32(mem_ab); \
|
||
vmovdqu x1, 1 * 32(mem_ab); \
|
||
vmovdqu x2, 2 * 32(mem_ab); \
|
||
vmovdqu x3, 3 * 32(mem_ab); \
|
||
vmovdqu x4, 4 * 32(mem_ab); \
|
||
vmovdqu x5, 5 * 32(mem_ab); \
|
||
vmovdqu x6, 6 * 32(mem_ab); \
|
||
vmovdqu x7, 7 * 32(mem_ab); \
|
||
vmovdqu y0, 0 * 32(mem_cd); \
|
||
vmovdqu y1, 1 * 32(mem_cd); \
|
||
vmovdqu y2, 2 * 32(mem_cd); \
|
||
vmovdqu y3, 3 * 32(mem_cd); \
|
||
vmovdqu y4, 4 * 32(mem_cd); \
|
||
vmovdqu y5, 5 * 32(mem_cd); \
|
||
vmovdqu y6, 6 * 32(mem_cd); \
|
||
vmovdqu y7, 7 * 32(mem_cd);
|
||
|
||
/* de-byteslice, apply post-whitening and store blocks */
|
||
#define outunpack32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, \
|
||
y5, y6, y7, key, stack_tmp0, stack_tmp1) \
|
||
byteslice_16x16b_fast(y0, y4, x0, x4, y1, y5, x1, x5, y2, y6, x2, x6, \
|
||
y3, y7, x3, x7, stack_tmp0, stack_tmp1); \
|
||
\
|
||
vmovdqu x0, stack_tmp0; \
|
||
\
|
||
vpbroadcastq key, x0; \
|
||
vpshufb .Lpack_bswap, x0, x0; \
|
||
\
|
||
vpxor x0, y7, y7; \
|
||
vpxor x0, y6, y6; \
|
||
vpxor x0, y5, y5; \
|
||
vpxor x0, y4, y4; \
|
||
vpxor x0, y3, y3; \
|
||
vpxor x0, y2, y2; \
|
||
vpxor x0, y1, y1; \
|
||
vpxor x0, y0, y0; \
|
||
vpxor x0, x7, x7; \
|
||
vpxor x0, x6, x6; \
|
||
vpxor x0, x5, x5; \
|
||
vpxor x0, x4, x4; \
|
||
vpxor x0, x3, x3; \
|
||
vpxor x0, x2, x2; \
|
||
vpxor x0, x1, x1; \
|
||
vpxor stack_tmp0, x0, x0;
|
||
|
||
#define write_output(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
|
||
y6, y7, rio) \
|
||
vmovdqu x0, 0 * 32(rio); \
|
||
vmovdqu x1, 1 * 32(rio); \
|
||
vmovdqu x2, 2 * 32(rio); \
|
||
vmovdqu x3, 3 * 32(rio); \
|
||
vmovdqu x4, 4 * 32(rio); \
|
||
vmovdqu x5, 5 * 32(rio); \
|
||
vmovdqu x6, 6 * 32(rio); \
|
||
vmovdqu x7, 7 * 32(rio); \
|
||
vmovdqu y0, 8 * 32(rio); \
|
||
vmovdqu y1, 9 * 32(rio); \
|
||
vmovdqu y2, 10 * 32(rio); \
|
||
vmovdqu y3, 11 * 32(rio); \
|
||
vmovdqu y4, 12 * 32(rio); \
|
||
vmovdqu y5, 13 * 32(rio); \
|
||
vmovdqu y6, 14 * 32(rio); \
|
||
vmovdqu y7, 15 * 32(rio);
|
||
|
||
|
||
.section .rodata.cst32.shufb_16x16b, "aM", @progbits, 32
|
||
.align 32
|
||
#define SHUFB_BYTES(idx) \
|
||
0 + (idx), 4 + (idx), 8 + (idx), 12 + (idx)
|
||
.Lshufb_16x16b:
|
||
.byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3)
|
||
.byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3)
|
||
|
||
.section .rodata.cst32.pack_bswap, "aM", @progbits, 32
|
||
.align 32
|
||
.Lpack_bswap:
|
||
.long 0x00010203, 0x04050607, 0x80808080, 0x80808080
|
||
.long 0x00010203, 0x04050607, 0x80808080, 0x80808080
|
||
|
||
/* NB: section is mergeable, all elements must be aligned 16-byte blocks */
|
||
.section .rodata.cst16, "aM", @progbits, 16
|
||
.align 16
|
||
|
||
/* For CTR-mode IV byteswap */
|
||
.Lbswap128_mask:
|
||
.byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
|
||
|
||
/* For XTS mode */
|
||
.Lxts_gf128mul_and_shl1_mask_0:
|
||
.byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0
|
||
.Lxts_gf128mul_and_shl1_mask_1:
|
||
.byte 0x0e, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0
|
||
|
||
/*
|
||
* pre-SubByte transform
|
||
*
|
||
* pre-lookup for sbox1, sbox2, sbox3:
|
||
* swap_bitendianness(
|
||
* isom_map_camellia_to_aes(
|
||
* camellia_f(
|
||
* swap_bitendianess(in)
|
||
* )
|
||
* )
|
||
* )
|
||
*
|
||
* (note: '⊕ 0xc5' inside camellia_f())
|
||
*/
|
||
.Lpre_tf_lo_s1:
|
||
.byte 0x45, 0xe8, 0x40, 0xed, 0x2e, 0x83, 0x2b, 0x86
|
||
.byte 0x4b, 0xe6, 0x4e, 0xe3, 0x20, 0x8d, 0x25, 0x88
|
||
.Lpre_tf_hi_s1:
|
||
.byte 0x00, 0x51, 0xf1, 0xa0, 0x8a, 0xdb, 0x7b, 0x2a
|
||
.byte 0x09, 0x58, 0xf8, 0xa9, 0x83, 0xd2, 0x72, 0x23
|
||
|
||
/*
|
||
* pre-SubByte transform
|
||
*
|
||
* pre-lookup for sbox4:
|
||
* swap_bitendianness(
|
||
* isom_map_camellia_to_aes(
|
||
* camellia_f(
|
||
* swap_bitendianess(in <<< 1)
|
||
* )
|
||
* )
|
||
* )
|
||
*
|
||
* (note: '⊕ 0xc5' inside camellia_f())
|
||
*/
|
||
.Lpre_tf_lo_s4:
|
||
.byte 0x45, 0x40, 0x2e, 0x2b, 0x4b, 0x4e, 0x20, 0x25
|
||
.byte 0x14, 0x11, 0x7f, 0x7a, 0x1a, 0x1f, 0x71, 0x74
|
||
.Lpre_tf_hi_s4:
|
||
.byte 0x00, 0xf1, 0x8a, 0x7b, 0x09, 0xf8, 0x83, 0x72
|
||
.byte 0xad, 0x5c, 0x27, 0xd6, 0xa4, 0x55, 0x2e, 0xdf
|
||
|
||
/*
|
||
* post-SubByte transform
|
||
*
|
||
* post-lookup for sbox1, sbox4:
|
||
* swap_bitendianness(
|
||
* camellia_h(
|
||
* isom_map_aes_to_camellia(
|
||
* swap_bitendianness(
|
||
* aes_inverse_affine_transform(in)
|
||
* )
|
||
* )
|
||
* )
|
||
* )
|
||
*
|
||
* (note: '⊕ 0x6e' inside camellia_h())
|
||
*/
|
||
.Lpost_tf_lo_s1:
|
||
.byte 0x3c, 0xcc, 0xcf, 0x3f, 0x32, 0xc2, 0xc1, 0x31
|
||
.byte 0xdc, 0x2c, 0x2f, 0xdf, 0xd2, 0x22, 0x21, 0xd1
|
||
.Lpost_tf_hi_s1:
|
||
.byte 0x00, 0xf9, 0x86, 0x7f, 0xd7, 0x2e, 0x51, 0xa8
|
||
.byte 0xa4, 0x5d, 0x22, 0xdb, 0x73, 0x8a, 0xf5, 0x0c
|
||
|
||
/*
|
||
* post-SubByte transform
|
||
*
|
||
* post-lookup for sbox2:
|
||
* swap_bitendianness(
|
||
* camellia_h(
|
||
* isom_map_aes_to_camellia(
|
||
* swap_bitendianness(
|
||
* aes_inverse_affine_transform(in)
|
||
* )
|
||
* )
|
||
* )
|
||
* ) <<< 1
|
||
*
|
||
* (note: '⊕ 0x6e' inside camellia_h())
|
||
*/
|
||
.Lpost_tf_lo_s2:
|
||
.byte 0x78, 0x99, 0x9f, 0x7e, 0x64, 0x85, 0x83, 0x62
|
||
.byte 0xb9, 0x58, 0x5e, 0xbf, 0xa5, 0x44, 0x42, 0xa3
|
||
.Lpost_tf_hi_s2:
|
||
.byte 0x00, 0xf3, 0x0d, 0xfe, 0xaf, 0x5c, 0xa2, 0x51
|
||
.byte 0x49, 0xba, 0x44, 0xb7, 0xe6, 0x15, 0xeb, 0x18
|
||
|
||
/*
|
||
* post-SubByte transform
|
||
*
|
||
* post-lookup for sbox3:
|
||
* swap_bitendianness(
|
||
* camellia_h(
|
||
* isom_map_aes_to_camellia(
|
||
* swap_bitendianness(
|
||
* aes_inverse_affine_transform(in)
|
||
* )
|
||
* )
|
||
* )
|
||
* ) >>> 1
|
||
*
|
||
* (note: '⊕ 0x6e' inside camellia_h())
|
||
*/
|
||
.Lpost_tf_lo_s3:
|
||
.byte 0x1e, 0x66, 0xe7, 0x9f, 0x19, 0x61, 0xe0, 0x98
|
||
.byte 0x6e, 0x16, 0x97, 0xef, 0x69, 0x11, 0x90, 0xe8
|
||
.Lpost_tf_hi_s3:
|
||
.byte 0x00, 0xfc, 0x43, 0xbf, 0xeb, 0x17, 0xa8, 0x54
|
||
.byte 0x52, 0xae, 0x11, 0xed, 0xb9, 0x45, 0xfa, 0x06
|
||
|
||
/* For isolating SubBytes from AESENCLAST, inverse shift row */
|
||
.Linv_shift_row:
|
||
.byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b
|
||
.byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03
|
||
|
||
.section .rodata.cst4.L0f0f0f0f, "aM", @progbits, 4
|
||
.align 4
|
||
/* 4-bit mask */
|
||
.L0f0f0f0f:
|
||
.long 0x0f0f0f0f
|
||
|
||
.text
|
||
|
||
.align 8
|
||
SYM_FUNC_START_LOCAL(__camellia_enc_blk32)
|
||
/* input:
|
||
* %rdi: ctx, CTX
|
||
* %rax: temporary storage, 512 bytes
|
||
* %ymm0..%ymm15: 32 plaintext blocks
|
||
* output:
|
||
* %ymm0..%ymm15: 32 encrypted blocks, order swapped:
|
||
* 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8
|
||
*/
|
||
FRAME_BEGIN
|
||
|
||
leaq 8 * 32(%rax), %rcx;
|
||
|
||
inpack32_post(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rax, %rcx);
|
||
|
||
enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rax, %rcx, 0);
|
||
|
||
fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15,
|
||
((key_table + (8) * 8) + 0)(CTX),
|
||
((key_table + (8) * 8) + 4)(CTX),
|
||
((key_table + (8) * 8) + 8)(CTX),
|
||
((key_table + (8) * 8) + 12)(CTX));
|
||
|
||
enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rax, %rcx, 8);
|
||
|
||
fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15,
|
||
((key_table + (16) * 8) + 0)(CTX),
|
||
((key_table + (16) * 8) + 4)(CTX),
|
||
((key_table + (16) * 8) + 8)(CTX),
|
||
((key_table + (16) * 8) + 12)(CTX));
|
||
|
||
enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rax, %rcx, 16);
|
||
|
||
movl $24, %r8d;
|
||
cmpl $16, key_length(CTX);
|
||
jne .Lenc_max32;
|
||
|
||
.Lenc_done:
|
||
/* load CD for output */
|
||
vmovdqu 0 * 32(%rcx), %ymm8;
|
||
vmovdqu 1 * 32(%rcx), %ymm9;
|
||
vmovdqu 2 * 32(%rcx), %ymm10;
|
||
vmovdqu 3 * 32(%rcx), %ymm11;
|
||
vmovdqu 4 * 32(%rcx), %ymm12;
|
||
vmovdqu 5 * 32(%rcx), %ymm13;
|
||
vmovdqu 6 * 32(%rcx), %ymm14;
|
||
vmovdqu 7 * 32(%rcx), %ymm15;
|
||
|
||
outunpack32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 32(%rax));
|
||
|
||
FRAME_END
|
||
RET;
|
||
|
||
.align 8
|
||
.Lenc_max32:
|
||
movl $32, %r8d;
|
||
|
||
fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15,
|
||
((key_table + (24) * 8) + 0)(CTX),
|
||
((key_table + (24) * 8) + 4)(CTX),
|
||
((key_table + (24) * 8) + 8)(CTX),
|
||
((key_table + (24) * 8) + 12)(CTX));
|
||
|
||
enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rax, %rcx, 24);
|
||
|
||
jmp .Lenc_done;
|
||
SYM_FUNC_END(__camellia_enc_blk32)
|
||
|
||
.align 8
|
||
SYM_FUNC_START_LOCAL(__camellia_dec_blk32)
|
||
/* input:
|
||
* %rdi: ctx, CTX
|
||
* %rax: temporary storage, 512 bytes
|
||
* %r8d: 24 for 16 byte key, 32 for larger
|
||
* %ymm0..%ymm15: 16 encrypted blocks
|
||
* output:
|
||
* %ymm0..%ymm15: 16 plaintext blocks, order swapped:
|
||
* 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8
|
||
*/
|
||
FRAME_BEGIN
|
||
|
||
leaq 8 * 32(%rax), %rcx;
|
||
|
||
inpack32_post(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rax, %rcx);
|
||
|
||
cmpl $32, %r8d;
|
||
je .Ldec_max32;
|
||
|
||
.Ldec_max24:
|
||
dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rax, %rcx, 16);
|
||
|
||
fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15,
|
||
((key_table + (16) * 8) + 8)(CTX),
|
||
((key_table + (16) * 8) + 12)(CTX),
|
||
((key_table + (16) * 8) + 0)(CTX),
|
||
((key_table + (16) * 8) + 4)(CTX));
|
||
|
||
dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rax, %rcx, 8);
|
||
|
||
fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15,
|
||
((key_table + (8) * 8) + 8)(CTX),
|
||
((key_table + (8) * 8) + 12)(CTX),
|
||
((key_table + (8) * 8) + 0)(CTX),
|
||
((key_table + (8) * 8) + 4)(CTX));
|
||
|
||
dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rax, %rcx, 0);
|
||
|
||
/* load CD for output */
|
||
vmovdqu 0 * 32(%rcx), %ymm8;
|
||
vmovdqu 1 * 32(%rcx), %ymm9;
|
||
vmovdqu 2 * 32(%rcx), %ymm10;
|
||
vmovdqu 3 * 32(%rcx), %ymm11;
|
||
vmovdqu 4 * 32(%rcx), %ymm12;
|
||
vmovdqu 5 * 32(%rcx), %ymm13;
|
||
vmovdqu 6 * 32(%rcx), %ymm14;
|
||
vmovdqu 7 * 32(%rcx), %ymm15;
|
||
|
||
outunpack32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, (key_table)(CTX), (%rax), 1 * 32(%rax));
|
||
|
||
FRAME_END
|
||
RET;
|
||
|
||
.align 8
|
||
.Ldec_max32:
|
||
dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rax, %rcx, 24);
|
||
|
||
fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15,
|
||
((key_table + (24) * 8) + 8)(CTX),
|
||
((key_table + (24) * 8) + 12)(CTX),
|
||
((key_table + (24) * 8) + 0)(CTX),
|
||
((key_table + (24) * 8) + 4)(CTX));
|
||
|
||
jmp .Ldec_max24;
|
||
SYM_FUNC_END(__camellia_dec_blk32)
|
||
|
||
SYM_FUNC_START(camellia_ecb_enc_32way)
|
||
/* input:
|
||
* %rdi: ctx, CTX
|
||
* %rsi: dst (32 blocks)
|
||
* %rdx: src (32 blocks)
|
||
*/
|
||
FRAME_BEGIN
|
||
|
||
vzeroupper;
|
||
|
||
inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rdx, (key_table)(CTX));
|
||
|
||
/* now dst can be used as temporary buffer (even in src == dst case) */
|
||
movq %rsi, %rax;
|
||
|
||
call __camellia_enc_blk32;
|
||
|
||
write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
|
||
%ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
|
||
%ymm8, %rsi);
|
||
|
||
vzeroupper;
|
||
|
||
FRAME_END
|
||
RET;
|
||
SYM_FUNC_END(camellia_ecb_enc_32way)
|
||
|
||
SYM_FUNC_START(camellia_ecb_dec_32way)
|
||
/* input:
|
||
* %rdi: ctx, CTX
|
||
* %rsi: dst (32 blocks)
|
||
* %rdx: src (32 blocks)
|
||
*/
|
||
FRAME_BEGIN
|
||
|
||
vzeroupper;
|
||
|
||
cmpl $16, key_length(CTX);
|
||
movl $32, %r8d;
|
||
movl $24, %eax;
|
||
cmovel %eax, %r8d; /* max */
|
||
|
||
inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rdx, (key_table)(CTX, %r8, 8));
|
||
|
||
/* now dst can be used as temporary buffer (even in src == dst case) */
|
||
movq %rsi, %rax;
|
||
|
||
call __camellia_dec_blk32;
|
||
|
||
write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
|
||
%ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
|
||
%ymm8, %rsi);
|
||
|
||
vzeroupper;
|
||
|
||
FRAME_END
|
||
RET;
|
||
SYM_FUNC_END(camellia_ecb_dec_32way)
|
||
|
||
SYM_FUNC_START(camellia_cbc_dec_32way)
|
||
/* input:
|
||
* %rdi: ctx, CTX
|
||
* %rsi: dst (32 blocks)
|
||
* %rdx: src (32 blocks)
|
||
*/
|
||
FRAME_BEGIN
|
||
|
||
vzeroupper;
|
||
|
||
cmpl $16, key_length(CTX);
|
||
movl $32, %r8d;
|
||
movl $24, %eax;
|
||
cmovel %eax, %r8d; /* max */
|
||
|
||
inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
|
||
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
|
||
%ymm15, %rdx, (key_table)(CTX, %r8, 8));
|
||
|
||
movq %rsp, %r10;
|
||
cmpq %rsi, %rdx;
|
||
je .Lcbc_dec_use_stack;
|
||
|
||
/* dst can be used as temporary storage, src is not overwritten. */
|
||
movq %rsi, %rax;
|
||
jmp .Lcbc_dec_continue;
|
||
|
||
.Lcbc_dec_use_stack:
|
||
/*
|
||
* dst still in-use (because dst == src), so use stack for temporary
|
||
* storage.
|
||
*/
|
||
subq $(16 * 32), %rsp;
|
||
movq %rsp, %rax;
|
||
|
||
.Lcbc_dec_continue:
|
||
call __camellia_dec_blk32;
|
||
|
||
vmovdqu %ymm7, (%rax);
|
||
vpxor %ymm7, %ymm7, %ymm7;
|
||
vinserti128 $1, (%rdx), %ymm7, %ymm7;
|
||
vpxor (%rax), %ymm7, %ymm7;
|
||
movq %r10, %rsp;
|
||
vpxor (0 * 32 + 16)(%rdx), %ymm6, %ymm6;
|
||
vpxor (1 * 32 + 16)(%rdx), %ymm5, %ymm5;
|
||
vpxor (2 * 32 + 16)(%rdx), %ymm4, %ymm4;
|
||
vpxor (3 * 32 + 16)(%rdx), %ymm3, %ymm3;
|
||
vpxor (4 * 32 + 16)(%rdx), %ymm2, %ymm2;
|
||
vpxor (5 * 32 + 16)(%rdx), %ymm1, %ymm1;
|
||
vpxor (6 * 32 + 16)(%rdx), %ymm0, %ymm0;
|
||
vpxor (7 * 32 + 16)(%rdx), %ymm15, %ymm15;
|
||
vpxor (8 * 32 + 16)(%rdx), %ymm14, %ymm14;
|
||
vpxor (9 * 32 + 16)(%rdx), %ymm13, %ymm13;
|
||
vpxor (10 * 32 + 16)(%rdx), %ymm12, %ymm12;
|
||
vpxor (11 * 32 + 16)(%rdx), %ymm11, %ymm11;
|
||
vpxor (12 * 32 + 16)(%rdx), %ymm10, %ymm10;
|
||
vpxor (13 * 32 + 16)(%rdx), %ymm9, %ymm9;
|
||
vpxor (14 * 32 + 16)(%rdx), %ymm8, %ymm8;
|
||
write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
|
||
%ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
|
||
%ymm8, %rsi);
|
||
|
||
vzeroupper;
|
||
|
||
FRAME_END
|
||
RET;
|
||
SYM_FUNC_END(camellia_cbc_dec_32way)
|
||
|
||
#define inc_le128(x, minus_one, tmp) \
|
||
vpcmpeqq minus_one, x, tmp; \
|
||
vpsubq minus_one, x, x; \
|
||
vpslldq $8, tmp, tmp; \
|
||
vpsubq tmp, x, x;
|
||
|
||
#define add2_le128(x, minus_one, minus_two, tmp1, tmp2) \
|
||
vpcmpeqq minus_one, x, tmp1; \
|
||
vpcmpeqq minus_two, x, tmp2; \
|
||
vpsubq minus_two, x, x; \
|
||
vpor tmp2, tmp1, tmp1; \
|
||
vpslldq $8, tmp1, tmp1; \
|
||
vpsubq tmp1, x, x;
|
||
|
||
SYM_FUNC_START(camellia_ctr_32way)
|
||
/* input:
|
||
* %rdi: ctx, CTX
|
||
* %rsi: dst (32 blocks)
|
||
* %rdx: src (32 blocks)
|
||
* %rcx: iv (little endian, 128bit)
|
||
*/
|
||
FRAME_BEGIN
|
||
|
||
vzeroupper;
|
||
|
||
movq %rsp, %r10;
|
||
cmpq %rsi, %rdx;
|
||
je .Lctr_use_stack;
|
||
|
||
/* dst can be used as temporary storage, src is not overwritten. */
|
||
movq %rsi, %rax;
|
||
jmp .Lctr_continue;
|
||
|
||
.Lctr_use_stack:
|
||
subq $(16 * 32), %rsp;
|
||
movq %rsp, %rax;
|
||
|
||
.Lctr_continue:
|
||
vpcmpeqd %ymm15, %ymm15, %ymm15;
|
||
vpsrldq $8, %ymm15, %ymm15; /* ab: -1:0 ; cd: -1:0 */
|
||
vpaddq %ymm15, %ymm15, %ymm12; /* ab: -2:0 ; cd: -2:0 */
|
||
|
||
/* load IV and byteswap */
|
||
vmovdqu (%rcx), %xmm0;
|
||
vmovdqa %xmm0, %xmm1;
|
||
inc_le128(%xmm0, %xmm15, %xmm14);
|
||
vbroadcasti128 .Lbswap128_mask, %ymm14;
|
||
vinserti128 $1, %xmm0, %ymm1, %ymm0;
|
||
vpshufb %ymm14, %ymm0, %ymm13;
|
||
vmovdqu %ymm13, 15 * 32(%rax);
|
||
|
||
/* construct IVs */
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13); /* ab:le2 ; cd:le3 */
|
||
vpshufb %ymm14, %ymm0, %ymm13;
|
||
vmovdqu %ymm13, 14 * 32(%rax);
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm13;
|
||
vmovdqu %ymm13, 13 * 32(%rax);
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm13;
|
||
vmovdqu %ymm13, 12 * 32(%rax);
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm13;
|
||
vmovdqu %ymm13, 11 * 32(%rax);
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm10;
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm9;
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm8;
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm7;
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm6;
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm5;
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm4;
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm3;
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm2;
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vpshufb %ymm14, %ymm0, %ymm1;
|
||
add2_le128(%ymm0, %ymm15, %ymm12, %ymm11, %ymm13);
|
||
vextracti128 $1, %ymm0, %xmm13;
|
||
vpshufb %ymm14, %ymm0, %ymm0;
|
||
inc_le128(%xmm13, %xmm15, %xmm14);
|
||
vmovdqu %xmm13, (%rcx);
|
||
|
||
/* inpack32_pre: */
|
||
vpbroadcastq (key_table)(CTX), %ymm15;
|
||
vpshufb .Lpack_bswap, %ymm15, %ymm15;
|
||
vpxor %ymm0, %ymm15, %ymm0;
|
||
vpxor %ymm1, %ymm15, %ymm1;
|
||
vpxor %ymm2, %ymm15, %ymm2;
|
||
vpxor %ymm3, %ymm15, %ymm3;
|
||
vpxor %ymm4, %ymm15, %ymm4;
|
||
vpxor %ymm5, %ymm15, %ymm5;
|
||
vpxor %ymm6, %ymm15, %ymm6;
|
||
vpxor %ymm7, %ymm15, %ymm7;
|
||
vpxor %ymm8, %ymm15, %ymm8;
|
||
vpxor %ymm9, %ymm15, %ymm9;
|
||
vpxor %ymm10, %ymm15, %ymm10;
|
||
vpxor 11 * 32(%rax), %ymm15, %ymm11;
|
||
vpxor 12 * 32(%rax), %ymm15, %ymm12;
|
||
vpxor 13 * 32(%rax), %ymm15, %ymm13;
|
||
vpxor 14 * 32(%rax), %ymm15, %ymm14;
|
||
vpxor 15 * 32(%rax), %ymm15, %ymm15;
|
||
|
||
call __camellia_enc_blk32;
|
||
|
||
movq %r10, %rsp;
|
||
|
||
vpxor 0 * 32(%rdx), %ymm7, %ymm7;
|
||
vpxor 1 * 32(%rdx), %ymm6, %ymm6;
|
||
vpxor 2 * 32(%rdx), %ymm5, %ymm5;
|
||
vpxor 3 * 32(%rdx), %ymm4, %ymm4;
|
||
vpxor 4 * 32(%rdx), %ymm3, %ymm3;
|
||
vpxor 5 * 32(%rdx), %ymm2, %ymm2;
|
||
vpxor 6 * 32(%rdx), %ymm1, %ymm1;
|
||
vpxor 7 * 32(%rdx), %ymm0, %ymm0;
|
||
vpxor 8 * 32(%rdx), %ymm15, %ymm15;
|
||
vpxor 9 * 32(%rdx), %ymm14, %ymm14;
|
||
vpxor 10 * 32(%rdx), %ymm13, %ymm13;
|
||
vpxor 11 * 32(%rdx), %ymm12, %ymm12;
|
||
vpxor 12 * 32(%rdx), %ymm11, %ymm11;
|
||
vpxor 13 * 32(%rdx), %ymm10, %ymm10;
|
||
vpxor 14 * 32(%rdx), %ymm9, %ymm9;
|
||
vpxor 15 * 32(%rdx), %ymm8, %ymm8;
|
||
write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
|
||
%ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
|
||
%ymm8, %rsi);
|
||
|
||
vzeroupper;
|
||
|
||
FRAME_END
|
||
RET;
|
||
SYM_FUNC_END(camellia_ctr_32way)
|
||
|
||
#define gf128mul_x_ble(iv, mask, tmp) \
|
||
vpsrad $31, iv, tmp; \
|
||
vpaddq iv, iv, iv; \
|
||
vpshufd $0x13, tmp, tmp; \
|
||
vpand mask, tmp, tmp; \
|
||
vpxor tmp, iv, iv;
|
||
|
||
#define gf128mul_x2_ble(iv, mask1, mask2, tmp0, tmp1) \
|
||
vpsrad $31, iv, tmp0; \
|
||
vpaddq iv, iv, tmp1; \
|
||
vpsllq $2, iv, iv; \
|
||
vpshufd $0x13, tmp0, tmp0; \
|
||
vpsrad $31, tmp1, tmp1; \
|
||
vpand mask2, tmp0, tmp0; \
|
||
vpshufd $0x13, tmp1, tmp1; \
|
||
vpxor tmp0, iv, iv; \
|
||
vpand mask1, tmp1, tmp1; \
|
||
vpxor tmp1, iv, iv;
|
||
|
||
.align 8
|
||
SYM_FUNC_START_LOCAL(camellia_xts_crypt_32way)
|
||
/* input:
|
||
* %rdi: ctx, CTX
|
||
* %rsi: dst (32 blocks)
|
||
* %rdx: src (32 blocks)
|
||
* %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸))
|
||
* %r8: index for input whitening key
|
||
* %r9: pointer to __camellia_enc_blk32 or __camellia_dec_blk32
|
||
*/
|
||
FRAME_BEGIN
|
||
|
||
vzeroupper;
|
||
|
||
subq $(16 * 32), %rsp;
|
||
movq %rsp, %rax;
|
||
|
||
vbroadcasti128 .Lxts_gf128mul_and_shl1_mask_0, %ymm12;
|
||
|
||
/* load IV and construct second IV */
|
||
vmovdqu (%rcx), %xmm0;
|
||
vmovdqa %xmm0, %xmm15;
|
||
gf128mul_x_ble(%xmm0, %xmm12, %xmm13);
|
||
vbroadcasti128 .Lxts_gf128mul_and_shl1_mask_1, %ymm13;
|
||
vinserti128 $1, %xmm0, %ymm15, %ymm0;
|
||
vpxor 0 * 32(%rdx), %ymm0, %ymm15;
|
||
vmovdqu %ymm15, 15 * 32(%rax);
|
||
vmovdqu %ymm0, 0 * 32(%rsi);
|
||
|
||
/* construct IVs */
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 1 * 32(%rdx), %ymm0, %ymm15;
|
||
vmovdqu %ymm15, 14 * 32(%rax);
|
||
vmovdqu %ymm0, 1 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 2 * 32(%rdx), %ymm0, %ymm15;
|
||
vmovdqu %ymm15, 13 * 32(%rax);
|
||
vmovdqu %ymm0, 2 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 3 * 32(%rdx), %ymm0, %ymm15;
|
||
vmovdqu %ymm15, 12 * 32(%rax);
|
||
vmovdqu %ymm0, 3 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 4 * 32(%rdx), %ymm0, %ymm11;
|
||
vmovdqu %ymm0, 4 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 5 * 32(%rdx), %ymm0, %ymm10;
|
||
vmovdqu %ymm0, 5 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 6 * 32(%rdx), %ymm0, %ymm9;
|
||
vmovdqu %ymm0, 6 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 7 * 32(%rdx), %ymm0, %ymm8;
|
||
vmovdqu %ymm0, 7 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 8 * 32(%rdx), %ymm0, %ymm7;
|
||
vmovdqu %ymm0, 8 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 9 * 32(%rdx), %ymm0, %ymm6;
|
||
vmovdqu %ymm0, 9 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 10 * 32(%rdx), %ymm0, %ymm5;
|
||
vmovdqu %ymm0, 10 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 11 * 32(%rdx), %ymm0, %ymm4;
|
||
vmovdqu %ymm0, 11 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 12 * 32(%rdx), %ymm0, %ymm3;
|
||
vmovdqu %ymm0, 12 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 13 * 32(%rdx), %ymm0, %ymm2;
|
||
vmovdqu %ymm0, 13 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 14 * 32(%rdx), %ymm0, %ymm1;
|
||
vmovdqu %ymm0, 14 * 32(%rsi);
|
||
|
||
gf128mul_x2_ble(%ymm0, %ymm12, %ymm13, %ymm14, %ymm15);
|
||
vpxor 15 * 32(%rdx), %ymm0, %ymm15;
|
||
vmovdqu %ymm15, 0 * 32(%rax);
|
||
vmovdqu %ymm0, 15 * 32(%rsi);
|
||
|
||
vextracti128 $1, %ymm0, %xmm0;
|
||
gf128mul_x_ble(%xmm0, %xmm12, %xmm15);
|
||
vmovdqu %xmm0, (%rcx);
|
||
|
||
/* inpack32_pre: */
|
||
vpbroadcastq (key_table)(CTX, %r8, 8), %ymm15;
|
||
vpshufb .Lpack_bswap, %ymm15, %ymm15;
|
||
vpxor 0 * 32(%rax), %ymm15, %ymm0;
|
||
vpxor %ymm1, %ymm15, %ymm1;
|
||
vpxor %ymm2, %ymm15, %ymm2;
|
||
vpxor %ymm3, %ymm15, %ymm3;
|
||
vpxor %ymm4, %ymm15, %ymm4;
|
||
vpxor %ymm5, %ymm15, %ymm5;
|
||
vpxor %ymm6, %ymm15, %ymm6;
|
||
vpxor %ymm7, %ymm15, %ymm7;
|
||
vpxor %ymm8, %ymm15, %ymm8;
|
||
vpxor %ymm9, %ymm15, %ymm9;
|
||
vpxor %ymm10, %ymm15, %ymm10;
|
||
vpxor %ymm11, %ymm15, %ymm11;
|
||
vpxor 12 * 32(%rax), %ymm15, %ymm12;
|
||
vpxor 13 * 32(%rax), %ymm15, %ymm13;
|
||
vpxor 14 * 32(%rax), %ymm15, %ymm14;
|
||
vpxor 15 * 32(%rax), %ymm15, %ymm15;
|
||
|
||
CALL_NOSPEC r9;
|
||
|
||
addq $(16 * 32), %rsp;
|
||
|
||
vpxor 0 * 32(%rsi), %ymm7, %ymm7;
|
||
vpxor 1 * 32(%rsi), %ymm6, %ymm6;
|
||
vpxor 2 * 32(%rsi), %ymm5, %ymm5;
|
||
vpxor 3 * 32(%rsi), %ymm4, %ymm4;
|
||
vpxor 4 * 32(%rsi), %ymm3, %ymm3;
|
||
vpxor 5 * 32(%rsi), %ymm2, %ymm2;
|
||
vpxor 6 * 32(%rsi), %ymm1, %ymm1;
|
||
vpxor 7 * 32(%rsi), %ymm0, %ymm0;
|
||
vpxor 8 * 32(%rsi), %ymm15, %ymm15;
|
||
vpxor 9 * 32(%rsi), %ymm14, %ymm14;
|
||
vpxor 10 * 32(%rsi), %ymm13, %ymm13;
|
||
vpxor 11 * 32(%rsi), %ymm12, %ymm12;
|
||
vpxor 12 * 32(%rsi), %ymm11, %ymm11;
|
||
vpxor 13 * 32(%rsi), %ymm10, %ymm10;
|
||
vpxor 14 * 32(%rsi), %ymm9, %ymm9;
|
||
vpxor 15 * 32(%rsi), %ymm8, %ymm8;
|
||
write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
|
||
%ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
|
||
%ymm8, %rsi);
|
||
|
||
vzeroupper;
|
||
|
||
FRAME_END
|
||
RET;
|
||
SYM_FUNC_END(camellia_xts_crypt_32way)
|
||
|
||
SYM_FUNC_START(camellia_xts_enc_32way)
|
||
/* input:
|
||
* %rdi: ctx, CTX
|
||
* %rsi: dst (32 blocks)
|
||
* %rdx: src (32 blocks)
|
||
* %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸))
|
||
*/
|
||
|
||
xorl %r8d, %r8d; /* input whitening key, 0 for enc */
|
||
|
||
leaq __camellia_enc_blk32, %r9;
|
||
|
||
jmp camellia_xts_crypt_32way;
|
||
SYM_FUNC_END(camellia_xts_enc_32way)
|
||
|
||
SYM_FUNC_START(camellia_xts_dec_32way)
|
||
/* input:
|
||
* %rdi: ctx, CTX
|
||
* %rsi: dst (32 blocks)
|
||
* %rdx: src (32 blocks)
|
||
* %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸))
|
||
*/
|
||
|
||
cmpl $16, key_length(CTX);
|
||
movl $32, %r8d;
|
||
movl $24, %eax;
|
||
cmovel %eax, %r8d; /* input whitening key, last for dec */
|
||
|
||
leaq __camellia_dec_blk32, %r9;
|
||
|
||
jmp camellia_xts_crypt_32way;
|
||
SYM_FUNC_END(camellia_xts_dec_32way)
|