1 C nettle, low-level cryptographics library
3 C Copyright (C) 2010, Niels Möller
5 C The nettle library is free software; you can redistribute it and/or modify
6 C it under the terms of the GNU Lesser General Public License as published by
7 C the Free Software Foundation; either version 2.1 of the License, or (at your
8 C option) any later version.
10 C The nettle library is distributed in the hope that it will be useful, but
11 C WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 C or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
13 C License for more details.
15 C You should have received a copy of the GNU Lesser General Public License
16 C along with the nettle library; see the file COPYING.LIB. If not, write to
17 C the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
20 C Performance, cycles per block
24 C Camellia-128 415 347
25 C Camellia-256 543 461
30 define(<TABLE>, <%rsi>)
31 define(<LENGTH>, <%rdx>)
37 define(<I1>, <%rbx>) C callee-save
39 define(<TMP>, <%rbp>) C callee-save
42 define(<IR>, <%r12>) C callee-save
44 define(<SP1110>, <(TABLE,$1,4)>)
45 define(<SP0222>, <1024(TABLE,$1,4)>)
46 define(<SP3033>, <2048(TABLE,$1,4)>)
47 define(<SP4404>, <3072(TABLE,$1,4)>)
49 C ROUND(x, y, key-offset)
52 movzbl LREG($1), XREG(TMP)
53 movl SP1110(TMP), XREG(IR)
54 movzbl HREG($1), XREG(TMP)
55 xorl SP4404(TMP), XREG(IR)
59 movzbl LREG($1), XREG(TMP)
60 movl SP4404(TMP), XREG(IL)
61 movzbl HREG($1), XREG(TMP)
62 xorl SP3033(TMP), XREG(IL)
66 movzbl LREG($1), XREG(TMP)
67 xorl SP3033(TMP), XREG(IR)
68 movzbl HREG($1), XREG(TMP)
69 xorl SP0222(TMP), XREG(IR)
73 movzbl LREG($1), XREG(TMP)
74 xorl SP0222(TMP), XREG(IL)
75 movzbl HREG($1), XREG(TMP)
76 xorl SP1110(TMP), XREG(IL)
81 xorl XREG(IL), XREG(IR)
83 xorl XREG(IR), XREG(IL)
94 andl $2 + 4(KEY), XREG(TMP)
96 C xorl XREG(TMP), XREG($1)
98 movl $2(KEY), XREG(TMP)
99 orl XREG($1), XREG(TMP)
103 C FLINV(x0, key-offset)
105 movl $2(KEY), XREG(TMP)
106 orl XREG($1), XREG(TMP)
111 andl $2 + 4(KEY), XREG(TMP)
113 C xorl XREG(TMP), XREG($1)
117 .file "camellia-encrypt-internal.asm"
119 C _camellia_crypt(struct camellia_context *ctx,
120 C const struct camellia_table *T,
121 C unsigned length, uint8_t *dst,
125 PROLOGUE(_nettle_camellia_crypt)
136 C Load data, note that we'll happily do unaligned loads
143 movl (KEY), XREG(CNT)
146 C Whitening using first subkey
187 EPILOGUE(_nettle_camellia_crypt)