1 | #!/usr/bin/env perl
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2 | # Copyright 2017-2020 The OpenSSL Project Authors. All Rights Reserved.
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3 | #
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4 | # Licensed under the OpenSSL license (the "License"). You may not use
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5 | # this file except in compliance with the License. You can obtain a copy
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6 | # in the file LICENSE in the source distribution or at
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7 | # https://www.openssl.org/source/license.html
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8 | #
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9 | # ====================================================================
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10 | # Written by Andy Polyakov <[email protected]> for the OpenSSL
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11 | # project. The module is, however, dual licensed under OpenSSL and
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12 | # CRYPTOGAMS licenses depending on where you obtain it. For further
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13 | # details see http://www.openssl.org/~appro/cryptogams/.
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14 | # ====================================================================
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15 | #
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16 | # Keccak-1600 for x86 MMX.
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17 | #
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18 | # June 2017.
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19 | #
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20 | # Below code is KECCAK_2X implementation (see sha/keccak1600.c) with
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21 | # C[5] held in register bank and D[5] offloaded to memory. Though
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22 | # instead of actually unrolling the loop pair-wise I simply flip
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23 | # pointers to T[][] and A[][] and the end of round. Since number of
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24 | # rounds is even, last round writes to A[][] and everything works out.
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25 | # It's argued that MMX is the only code path meaningful to implement
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26 | # for x86. This is because non-MMX-capable processors is an extinct
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27 | # breed, and they as well can lurk executing compiler-generated code.
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28 | # For reference gcc-5.x-generated KECCAK_2X code takes 89 cycles per
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29 | # processed byte on Pentium. Which is fair result. But older compilers
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30 | # produce worse code. On the other hand one can wonder why not 128-bit
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31 | # SSE2? Well, SSE2 won't provide double improvement, rather far from
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32 | # that, if any at all on some processors, because it will take extra
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33 | # permutations and inter-bank data transfers. Besides, contemporary
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34 | # CPUs are better off executing 64-bit code, and it makes lesser sense
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35 | # to invest into fancy 32-bit code. And the decision doesn't seem to
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36 | # be inadequate, if one compares below results to "64-bit platforms in
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37 | # 32-bit mode" SIMD data points available at
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38 | # http://keccak.noekeon.org/sw_performance.html.
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39 | #
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40 | ########################################################################
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41 | # Numbers are cycles per processed byte out of large message.
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42 | #
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43 | # r=1088(i)
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44 | #
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45 | # PIII 30/+150%
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46 | # Pentium M 27/+150%
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47 | # P4 40/+85%
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48 | # Core 2 19/+170%
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49 | # Sandy Bridge(ii) 18/+140%
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50 | # Atom 33/+180%
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51 | # Silvermont(ii) 30/+180%
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52 | # VIA Nano(ii) 43/+60%
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53 | # Sledgehammer(ii)(iii) 24/+130%
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54 | #
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55 | # (i) Corresponds to SHA3-256. Numbers after slash are improvement
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56 | # coefficients over KECCAK_2X [with bit interleave and lane
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57 | # complementing] position-independent *scalar* code generated
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58 | # by gcc-5.x. It's not exactly fair comparison, but it's a
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59 | # datapoint...
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60 | # (ii) 64-bit processor executing 32-bit code.
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61 | # (iii) Result is considered to be representative even for older AMD
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62 | # processors.
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63 |
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64 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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65 | push(@INC,"${dir}","${dir}../../perlasm");
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66 | require "x86asm.pl";
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67 |
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68 | $output=pop;
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69 | open STDOUT,">$output";
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70 |
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71 | &asm_init($ARGV[0],$ARGV[$#ARGV] eq "386");
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72 |
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73 | my @C = map("mm$_",(0..4));
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74 | my @T = map("mm$_",(5..7));
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75 | my @A = map([ 8*$_-100, 8*($_+1)-100, 8*($_+2)-100,
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76 | 8*($_+3)-100, 8*($_+4)-100 ], (0,5,10,15,20));
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77 | my @D = map(8*$_+4, (0..4));
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78 | my @rhotates = ([ 0, 1, 62, 28, 27 ],
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79 | [ 36, 44, 6, 55, 20 ],
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80 | [ 3, 10, 43, 25, 39 ],
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81 | [ 41, 45, 15, 21, 8 ],
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82 | [ 18, 2, 61, 56, 14 ]);
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83 |
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84 | &static_label("iotas");
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85 |
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86 | &function_begin_B("_KeccakF1600");
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87 | &movq (@C[0],&QWP($A[4][0],"esi"));
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88 | &movq (@C[1],&QWP($A[4][1],"esi"));
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89 | &movq (@C[2],&QWP($A[4][2],"esi"));
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90 | &movq (@C[3],&QWP($A[4][3],"esi"));
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91 | &movq (@C[4],&QWP($A[4][4],"esi"));
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92 |
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93 | &mov ("ecx",24); # loop counter
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94 | &jmp (&label("loop"));
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95 |
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96 | &set_label("loop",16);
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97 | ######################################### Theta
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98 | &pxor (@C[0],&QWP($A[0][0],"esi"));
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99 | &pxor (@C[1],&QWP($A[0][1],"esi"));
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100 | &pxor (@C[2],&QWP($A[0][2],"esi"));
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101 | &pxor (@C[3],&QWP($A[0][3],"esi"));
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102 | &pxor (@C[4],&QWP($A[0][4],"esi"));
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103 |
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104 | &pxor (@C[0],&QWP($A[1][0],"esi"));
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105 | &pxor (@C[1],&QWP($A[1][1],"esi"));
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106 | &pxor (@C[2],&QWP($A[1][2],"esi"));
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107 | &pxor (@C[3],&QWP($A[1][3],"esi"));
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108 | &pxor (@C[4],&QWP($A[1][4],"esi"));
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109 |
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110 | &pxor (@C[0],&QWP($A[2][0],"esi"));
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111 | &pxor (@C[1],&QWP($A[2][1],"esi"));
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112 | &pxor (@C[2],&QWP($A[2][2],"esi"));
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113 | &pxor (@C[3],&QWP($A[2][3],"esi"));
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114 | &pxor (@C[4],&QWP($A[2][4],"esi"));
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115 |
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116 | &pxor (@C[2],&QWP($A[3][2],"esi"));
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117 | &pxor (@C[0],&QWP($A[3][0],"esi"));
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118 | &pxor (@C[1],&QWP($A[3][1],"esi"));
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119 | &pxor (@C[3],&QWP($A[3][3],"esi"));
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120 | &movq (@T[0],@C[2]);
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121 | &pxor (@C[4],&QWP($A[3][4],"esi"));
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122 |
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123 | &movq (@T[2],@C[2]);
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124 | &psrlq (@T[0],63);
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125 | &movq (@T[1],@C[0]);
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126 | &psllq (@T[2],1);
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127 | &pxor (@T[0],@C[0]);
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128 | &psrlq (@C[0],63);
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129 | &pxor (@T[0],@T[2]);
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130 | &psllq (@T[1],1);
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131 | &movq (@T[2],@C[1]);
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132 | &movq (&QWP(@D[1],"esp"),@T[0]); # D[1] = E[0] = ROL64(C[2], 1) ^ C[0];
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133 |
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134 | &pxor (@T[1],@C[0]);
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135 | &psrlq (@T[2],63);
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136 | &pxor (@T[1],@C[3]);
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137 | &movq (@C[0],@C[1]);
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138 | &movq (&QWP(@D[4],"esp"),@T[1]); # D[4] = E[1] = ROL64(C[0], 1) ^ C[3];
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139 |
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140 | &psllq (@C[0],1);
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141 | &pxor (@T[2],@C[4]);
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142 | &pxor (@C[0],@T[2]);
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143 |
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144 | &movq (@T[2],@C[3]);
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145 | &psrlq (@C[3],63);
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146 | &movq (&QWP(@D[0],"esp"),@C[0]); # D[0] = C[0] = ROL64(C[1], 1) ^ C[4];
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147 | &psllq (@T[2],1);
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148 | &movq (@T[0],@C[4]);
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149 | &psrlq (@C[4],63);
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150 | &pxor (@C[1],@C[3]);
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151 | &psllq (@T[0],1);
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152 | &pxor (@C[1],@T[2]);
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153 | &pxor (@C[2],@C[4]);
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154 | &movq (&QWP(@D[2],"esp"),@C[1]); # D[2] = C[1] = ROL64(C[3], 1) ^ C[1];
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155 | &pxor (@C[2],@T[0]);
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156 |
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157 | ######################################### first Rho(0) is special
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158 | &movq (@C[3],&QWP($A[3][3],"esi"));
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159 | &movq (&QWP(@D[3],"esp"),@C[2]); # D[3] = C[2] = ROL64(C[4], 1) ^ C[2];
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160 | &pxor (@C[3],@C[2]);
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161 | &movq (@C[4],&QWP($A[4][4],"esi"));
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162 | &movq (@T[2],@C[3]);
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163 | &psrlq (@C[3],64-$rhotates[3][3]);
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164 | &pxor (@C[4],@T[1]);
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165 | &psllq (@T[2],$rhotates[3][3]);
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166 | &movq (@T[1],@C[4]);
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167 | &psrlq (@C[4],64-$rhotates[4][4]);
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168 | &por (@C[3],@T[2]); # C[3] = ROL64(A[3][3] ^ C[2], rhotates[3][3]); /* D[3] */
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169 | &psllq (@T[1],$rhotates[4][4]);
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170 |
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171 | &movq (@C[2],&QWP($A[2][2],"esi"));
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172 | &por (@C[4],@T[1]); # C[4] = ROL64(A[4][4] ^ E[1], rhotates[4][4]); /* D[4] */
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173 | &pxor (@C[2],@C[1]);
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174 | &movq (@C[1],&QWP($A[1][1],"esi"));
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175 | &movq (@T[1],@C[2]);
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176 | &psrlq (@C[2],64-$rhotates[2][2]);
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177 | &pxor (@C[1],&QWP(@D[1],"esp"));
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178 | &psllq (@T[1],$rhotates[2][2]);
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179 |
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180 | &movq (@T[2],@C[1]);
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181 | &psrlq (@C[1],64-$rhotates[1][1]);
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182 | &por (@C[2],@T[1]); # C[2] = ROL64(A[2][2] ^ C[1], rhotates[2][2]); /* D[2] */
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183 | &psllq (@T[2],$rhotates[1][1]);
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184 | &pxor (@C[0],&QWP($A[0][0],"esi")); # /* rotate by 0 */ /* D[0] */
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185 | &por (@C[1],@T[2]); # C[1] = ROL64(A[1][1] ^ D[1], rhotates[1][1]);
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186 |
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187 | sub Chi() { ######### regular Chi step
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188 | my ($y,$xrho) = @_;
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189 |
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190 | &movq (@T[0],@C[1]);
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191 | &movq (@T[1],@C[2]);
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192 | &pandn (@T[0],@C[2]);
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193 | &pandn (@C[2],@C[3]);
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194 | &pxor (@T[0],@C[0]);
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195 | &pxor (@C[2],@C[1]);
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196 | &pxor (@T[0],&QWP(0,"ebx")) if ($y == 0);
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197 | &lea ("ebx",&DWP(8,"ebx")) if ($y == 0);
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198 |
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199 | &movq (@T[2],@C[3]);
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200 | &movq (&QWP($A[$y][0],"edi"),@T[0]); # R[0][0] = C[0] ^ (~C[1] & C[2]) ^ iotas[i];
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201 | &movq (@T[0],@C[4]);
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202 | &pandn (@C[3],@C[4]);
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203 | &pandn (@C[4],@C[0]);
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204 | &pxor (@C[3],@T[1]);
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205 | &movq (&QWP($A[$y][1],"edi"),@C[2]); # R[0][1] = C[1] ^ (~C[2] & C[3]);
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206 | &pxor (@C[4],@T[2]);
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207 | &movq (@T[2],&QWP($A[0][$xrho],"esi")) if (defined($xrho));
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208 |
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209 | &movq (&QWP($A[$y][2],"edi"),@C[3]); # R[0][2] = C[2] ^ (~C[3] & C[4]);
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210 | &pandn (@C[0],@C[1]);
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211 | &movq (&QWP($A[$y][3],"edi"),@C[4]); # R[0][3] = C[3] ^ (~C[4] & C[0]);
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212 | &pxor (@C[0],@T[0]);
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213 | &pxor (@T[2],&QWP(@D[$xrho],"esp")) if (defined($xrho));
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214 | &movq (&QWP($A[$y][4],"edi"),@C[0]); # R[0][4] = C[4] ^ (~C[0] & C[1]);
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215 | }
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216 | &Chi (0, 3);
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217 |
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218 | sub Rho() { ######### regular Rho step
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219 | my $x = shift;
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220 |
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221 | #&movq (@T[2],&QWP($A[0][$x],"esi")); # moved to Chi
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222 | #&pxor (@T[2],&QWP(@D[$x],"esp")); # moved to Chi
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223 | &movq (@C[0],@T[2]);
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224 | &psrlq (@T[2],64-$rhotates[0][$x]);
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225 | &movq (@C[1],&QWP($A[1][($x+1)%5],"esi"));
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226 | &psllq (@C[0],$rhotates[0][$x]);
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227 | &pxor (@C[1],&QWP(@D[($x+1)%5],"esp"));
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228 | &por (@C[0],@T[2]); # C[0] = ROL64(A[0][3] ^ D[3], rhotates[0][3]);
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229 |
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230 | &movq (@T[1],@C[1]);
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231 | &psrlq (@C[1],64-$rhotates[1][($x+1)%5]);
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232 | &movq (@C[2],&QWP($A[2][($x+2)%5],"esi"));
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233 | &psllq (@T[1],$rhotates[1][($x+1)%5]);
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234 | &pxor (@C[2],&QWP(@D[($x+2)%5],"esp"));
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235 | &por (@C[1],@T[1]); # C[1] = ROL64(A[1][4] ^ D[4], rhotates[1][4]);
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236 |
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237 | &movq (@T[2],@C[2]);
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238 | &psrlq (@C[2],64-$rhotates[2][($x+2)%5]);
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239 | &movq (@C[3],&QWP($A[3][($x+3)%5],"esi"));
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240 | &psllq (@T[2],$rhotates[2][($x+2)%5]);
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241 | &pxor (@C[3],&QWP(@D[($x+3)%5],"esp"));
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242 | &por (@C[2],@T[2]); # C[2] = ROL64(A[2][0] ^ D[0], rhotates[2][0]);
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243 |
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244 | &movq (@T[0],@C[3]);
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245 | &psrlq (@C[3],64-$rhotates[3][($x+3)%5]);
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246 | &movq (@C[4],&QWP($A[4][($x+4)%5],"esi"));
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247 | &psllq (@T[0],$rhotates[3][($x+3)%5]);
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248 | &pxor (@C[4],&QWP(@D[($x+4)%5],"esp"));
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249 | &por (@C[3],@T[0]); # C[3] = ROL64(A[3][1] ^ D[1], rhotates[3][1]);
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250 |
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251 | &movq (@T[1],@C[4]);
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252 | &psrlq (@C[4],64-$rhotates[4][($x+4)%5]);
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253 | &psllq (@T[1],$rhotates[4][($x+4)%5]);
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254 | &por (@C[4],@T[1]); # C[4] = ROL64(A[4][2] ^ D[2], rhotates[4][2]);
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255 | }
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256 | &Rho (3); &Chi (1, 1);
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257 | &Rho (1); &Chi (2, 4);
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258 | &Rho (4); &Chi (3, 2);
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259 | &Rho (2); ###&Chi (4);
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260 |
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261 | &movq (@T[0],@C[0]); ######### last Chi(4) is special
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262 | &xor ("edi","esi"); # &xchg ("esi","edi");
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263 | &movq (&QWP(@D[1],"esp"),@C[1]);
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264 | &xor ("esi","edi");
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265 | &xor ("edi","esi");
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266 |
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267 | &movq (@T[1],@C[1]);
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268 | &movq (@T[2],@C[2]);
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269 | &pandn (@T[1],@C[2]);
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270 | &pandn (@T[2],@C[3]);
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271 | &pxor (@C[0],@T[1]);
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272 | &pxor (@C[1],@T[2]);
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273 |
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274 | &movq (@T[1],@C[3]);
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275 | &movq (&QWP($A[4][0],"esi"),@C[0]); # R[4][0] = C[0] ^= (~C[1] & C[2]);
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276 | &pandn (@T[1],@C[4]);
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277 | &movq (&QWP($A[4][1],"esi"),@C[1]); # R[4][1] = C[1] ^= (~C[2] & C[3]);
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278 | &pxor (@C[2],@T[1]);
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279 | &movq (@T[2],@C[4]);
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280 | &movq (&QWP($A[4][2],"esi"),@C[2]); # R[4][2] = C[2] ^= (~C[3] & C[4]);
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281 |
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282 | &pandn (@T[2],@T[0]);
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283 | &pandn (@T[0],&QWP(@D[1],"esp"));
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284 | &pxor (@C[3],@T[2]);
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285 | &pxor (@C[4],@T[0]);
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286 | &movq (&QWP($A[4][3],"esi"),@C[3]); # R[4][3] = C[3] ^= (~C[4] & D[0]);
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287 | &sub ("ecx",1);
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288 | &movq (&QWP($A[4][4],"esi"),@C[4]); # R[4][4] = C[4] ^= (~D[0] & D[1]);
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289 | &jnz (&label("loop"));
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290 |
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291 | &lea ("ebx",&DWP(-192,"ebx")); # rewind iotas
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292 | &ret ();
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293 | &function_end_B("_KeccakF1600");
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294 |
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295 | &function_begin("KeccakF1600");
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296 | &mov ("esi",&wparam(0));
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297 | &mov ("ebp","esp");
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298 | &sub ("esp",240);
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299 | &call (&label("pic_point"));
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300 | &set_label("pic_point");
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301 | &blindpop("ebx");
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302 | &lea ("ebx",&DWP(&label("iotas")."-".&label("pic_point"),"ebx"));
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303 | &and ("esp",-8);
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304 | &lea ("esi",&DWP(100,"esi")); # size optimization
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305 | &lea ("edi",&DWP(8*5+100,"esp")); # size optimization
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306 |
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307 | &call ("_KeccakF1600");
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308 |
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309 | &mov ("esp","ebp");
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310 | &emms ();
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311 | &function_end("KeccakF1600");
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312 |
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313 | &function_begin("SHA3_absorb");
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314 | &mov ("esi",&wparam(0)); # A[][]
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315 | &mov ("eax",&wparam(1)); # inp
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316 | &mov ("ecx",&wparam(2)); # len
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317 | &mov ("edx",&wparam(3)); # bsz
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318 | &mov ("ebp","esp");
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319 | &sub ("esp",240+8);
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320 | &call (&label("pic_point"));
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321 | &set_label("pic_point");
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322 | &blindpop("ebx");
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323 | &lea ("ebx",&DWP(&label("iotas")."-".&label("pic_point"),"ebx"));
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324 | &and ("esp",-8);
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325 |
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326 | &mov ("edi","esi");
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327 | &lea ("esi",&DWP(100,"esi")); # size optimization
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328 | &mov (&DWP(-4,"ebp"),"edx"); # save bsz
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329 | &jmp (&label("loop"));
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330 |
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331 | &set_label("loop",16);
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332 | &cmp ("ecx","edx"); # len < bsz?
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333 | &jc (&label("absorbed"));
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334 |
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335 | &shr ("edx",3); # bsz /= 8
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336 | &set_label("block");
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337 | &movq ("mm0",&QWP(0,"eax"));
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338 | &lea ("eax",&DWP(8,"eax"));
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339 | &pxor ("mm0",&QWP(0,"edi"));
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340 | &lea ("edi",&DWP(8,"edi"));
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341 | &sub ("ecx",8); # len -= 8
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342 | &movq (&QWP(-8,"edi"),"mm0");
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343 | &dec ("edx"); # bsz--
|
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344 | &jnz (&label("block"));
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345 |
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346 | &lea ("edi",&DWP(8*5+100,"esp")); # size optimization
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347 | &mov (&DWP(-8,"ebp"),"ecx"); # save len
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348 | &call ("_KeccakF1600");
|
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349 | &mov ("ecx",&DWP(-8,"ebp")); # pull len
|
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350 | &mov ("edx",&DWP(-4,"ebp")); # pull bsz
|
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351 | &lea ("edi",&DWP(-100,"esi"));
|
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352 | &jmp (&label("loop"));
|
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353 |
|
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354 | &set_label("absorbed",16);
|
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355 | &mov ("eax","ecx"); # return value
|
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356 | &mov ("esp","ebp");
|
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357 | &emms ();
|
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358 | &function_end("SHA3_absorb");
|
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359 |
|
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360 | &function_begin("SHA3_squeeze");
|
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361 | &mov ("esi",&wparam(0)); # A[][]
|
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362 | &mov ("eax",&wparam(1)); # out
|
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363 | &mov ("ecx",&wparam(2)); # len
|
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364 | &mov ("edx",&wparam(3)); # bsz
|
---|
365 | &mov ("ebp","esp");
|
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366 | &sub ("esp",240+8);
|
---|
367 | &call (&label("pic_point"));
|
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368 | &set_label("pic_point");
|
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369 | &blindpop("ebx");
|
---|
370 | &lea ("ebx",&DWP(&label("iotas")."-".&label("pic_point"),"ebx"));
|
---|
371 | &and ("esp",-8);
|
---|
372 |
|
---|
373 | &shr ("edx",3); # bsz /= 8
|
---|
374 | &mov ("edi","esi");
|
---|
375 | &lea ("esi",&DWP(100,"esi")); # size optimization
|
---|
376 | &mov (&DWP(-4,"ebp"),"edx"); # save bsz
|
---|
377 | &jmp (&label("loop"));
|
---|
378 |
|
---|
379 | &set_label("loop",16);
|
---|
380 | &cmp ("ecx",8); # len < 8?
|
---|
381 | &jc (&label("tail"));
|
---|
382 |
|
---|
383 | &movq ("mm0",&QWP(0,"edi"));
|
---|
384 | &lea ("edi",&DWP(8,"edi"));
|
---|
385 | &movq (&QWP(0,"eax"),"mm0");
|
---|
386 | &lea ("eax",&DWP(8,"eax"));
|
---|
387 | &sub ("ecx",8); # len -= 8
|
---|
388 | &jz (&label("done"));
|
---|
389 |
|
---|
390 | &dec ("edx"); # bsz--
|
---|
391 | &jnz (&label("loop"));
|
---|
392 |
|
---|
393 | &lea ("edi",&DWP(8*5+100,"esp")); # size optimization
|
---|
394 | &mov (&DWP(-8,"ebp"),"ecx"); # save len
|
---|
395 | &call ("_KeccakF1600");
|
---|
396 | &mov ("ecx",&DWP(-8,"ebp")); # pull len
|
---|
397 | &mov ("edx",&DWP(-4,"ebp")); # pull bsz
|
---|
398 | &lea ("edi",&DWP(-100,"esi"));
|
---|
399 | &jmp (&label("loop"));
|
---|
400 |
|
---|
401 | &set_label("tail",16);
|
---|
402 | &mov ("esi","edi");
|
---|
403 | &mov ("edi","eax");
|
---|
404 | &data_word("0xA4F39066"); # rep movsb
|
---|
405 |
|
---|
406 | &set_label("done");
|
---|
407 | &mov ("esp","ebp");
|
---|
408 | &emms ();
|
---|
409 | &function_end("SHA3_squeeze");
|
---|
410 |
|
---|
411 | &set_label("iotas",32);
|
---|
412 | &data_word(0x00000001,0x00000000);
|
---|
413 | &data_word(0x00008082,0x00000000);
|
---|
414 | &data_word(0x0000808a,0x80000000);
|
---|
415 | &data_word(0x80008000,0x80000000);
|
---|
416 | &data_word(0x0000808b,0x00000000);
|
---|
417 | &data_word(0x80000001,0x00000000);
|
---|
418 | &data_word(0x80008081,0x80000000);
|
---|
419 | &data_word(0x00008009,0x80000000);
|
---|
420 | &data_word(0x0000008a,0x00000000);
|
---|
421 | &data_word(0x00000088,0x00000000);
|
---|
422 | &data_word(0x80008009,0x00000000);
|
---|
423 | &data_word(0x8000000a,0x00000000);
|
---|
424 | &data_word(0x8000808b,0x00000000);
|
---|
425 | &data_word(0x0000008b,0x80000000);
|
---|
426 | &data_word(0x00008089,0x80000000);
|
---|
427 | &data_word(0x00008003,0x80000000);
|
---|
428 | &data_word(0x00008002,0x80000000);
|
---|
429 | &data_word(0x00000080,0x80000000);
|
---|
430 | &data_word(0x0000800a,0x00000000);
|
---|
431 | &data_word(0x8000000a,0x80000000);
|
---|
432 | &data_word(0x80008081,0x80000000);
|
---|
433 | &data_word(0x00008080,0x80000000);
|
---|
434 | &data_word(0x80000001,0x00000000);
|
---|
435 | &data_word(0x80008008,0x80000000);
|
---|
436 | &asciz("Keccak-1600 absorb and squeeze for MMX, CRYPTOGAMS by <appro\@openssl.org>");
|
---|
437 |
|
---|
438 | &asm_finish();
|
---|
439 |
|
---|
440 | close STDOUT or die "error closing STDOUT: $!";
|
---|