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<div class="title">GF128.cpp</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (C) 2016 Southern Storm Software, Pty Ltd.</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * copy of this software and associated documentation files (the "Software"),</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to deal in the Software without restriction, including without limitation</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * The above copyright notice and this permission notice shall be included</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in all copies or substantial portions of the Software.</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "GF128.h"</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "utility/EndianUtil.h"</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <string.h></span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="classGF128.html#a43adbd72619e4f97ce427a60e7c0a248"> 58</a></span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#a43adbd72619e4f97ce427a60e7c0a248">GF128::mulInit</a>(uint32_t H[4], <span class="keyword">const</span> <span class="keywordtype">void</span> *key)</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> {</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#if defined(__AVR__)</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor"></span> <span class="comment">// Copy the key into H but leave it in big endian order because</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// we can correct for the byte order in mul() below.</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  memcpy(H, key, 16);</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#else</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"></span> <span class="comment">// Copy the key into H and convert from big endian to host order.</span></div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  memcpy(H, key, 16);</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#if defined(CRYPTO_LITTLE_ENDIAN)</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"></span> H[0] = be32toh(H[0]);</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  H[1] = be32toh(H[1]);</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  H[2] = be32toh(H[2]);</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  H[3] = be32toh(H[3]);</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"></span>}</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
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<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab"> 90</a></span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab">GF128::mul</a>(uint32_t Y[4], <span class="keyword">const</span> uint32_t H[4])</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> {</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor">#if defined(__AVR__)</span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor"></span> uint32_t Z[4] = {0, 0, 0, 0}; <span class="comment">// Z = 0</span></div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  uint32_t V0 = H[0]; <span class="comment">// V = H</span></div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  uint32_t V1 = H[1];</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  uint32_t V2 = H[2];</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  uint32_t V3 = H[3];</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// Multiply Z by V for the set bits in Y, starting at the top.</span></div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// This is a very simple bit by bit version that may not be very</span></div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// fast but it should be resistant to cache timing attacks.</span></div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 16; ++posn) {</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  uint8_t value = ((<span class="keyword">const</span> uint8_t *)Y)[posn];</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">for</span> (uint8_t bit = 0; bit < 8; ++bit) {</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  __asm__ __volatile__ (</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">// Extract the high bit of "value" and turn it into a mask.</span></div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="stringliteral">"ldd r24,%8\n"</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="stringliteral">"lsl r24\n"</span></div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="stringliteral">"std %8,r24\n"</span></div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="stringliteral">"mov __tmp_reg__,__zero_reg__\n"</span></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="stringliteral">"sbc __tmp_reg__,__zero_reg__\n"</span></div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">// XOR V with Z if the bit is 1.</span></div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="stringliteral">"mov r24,%D0\n"</span> <span class="comment">// Z0 ^= (V0 & mask)</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="stringliteral">"ldd r25,%D4\n"</span></div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="stringliteral">"std %D4,r25\n"</span></div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="stringliteral">"mov r24,%C0\n"</span></div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="stringliteral">"ldd r25,%C4\n"</span></div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="stringliteral">"std %C4,r25\n"</span></div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="stringliteral">"mov r24,%B0\n"</span></div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="stringliteral">"ldd r25,%B4\n"</span></div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="stringliteral">"std %B4,r25\n"</span></div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="stringliteral">"mov r24,%A0\n"</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="stringliteral">"ldd r25,%A4\n"</span></div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="stringliteral">"std %A4,r25\n"</span></div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="stringliteral">"mov r24,%D1\n"</span> <span class="comment">// Z1 ^= (V1 & mask)</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="stringliteral">"ldd r25,%D5\n"</span></div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="stringliteral">"std %D5,r25\n"</span></div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="stringliteral">"mov r24,%C1\n"</span></div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="stringliteral">"ldd r25,%C5\n"</span></div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="stringliteral">"std %C5,r25\n"</span></div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="stringliteral">"mov r24,%B1\n"</span></div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="stringliteral">"ldd r25,%B5\n"</span></div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="stringliteral">"std %B5,r25\n"</span></div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="stringliteral">"mov r24,%A1\n"</span></div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="stringliteral">"ldd r25,%A5\n"</span></div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="stringliteral">"std %A5,r25\n"</span></div>
|
|
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="stringliteral">"mov r24,%D2\n"</span> <span class="comment">// Z2 ^= (V2 & mask)</span></div>
|
|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="stringliteral">"ldd r25,%D6\n"</span></div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="stringliteral">"std %D6,r25\n"</span></div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="stringliteral">"mov r24,%C2\n"</span></div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="stringliteral">"ldd r25,%C6\n"</span></div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="stringliteral">"std %C6,r25\n"</span></div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="stringliteral">"mov r24,%B2\n"</span></div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="stringliteral">"ldd r25,%B6\n"</span></div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="stringliteral">"std %B6,r25\n"</span></div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="stringliteral">"mov r24,%A2\n"</span></div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="stringliteral">"ldd r25,%A6\n"</span></div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="stringliteral">"std %A6,r25\n"</span></div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="stringliteral">"mov r24,%D3\n"</span> <span class="comment">// Z3 ^= (V3 & mask)</span></div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="stringliteral">"ldd r25,%D7\n"</span></div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="stringliteral">"std %D7,r25\n"</span></div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="stringliteral">"mov r24,%C3\n"</span></div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="stringliteral">"ldd r25,%C7\n"</span></div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="stringliteral">"std %C7,r25\n"</span></div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="stringliteral">"mov r24,%B3\n"</span></div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="stringliteral">"ldd r25,%B7\n"</span></div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="stringliteral">"std %B7,r25\n"</span></div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="stringliteral">"mov r24,%A3\n"</span></div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="stringliteral">"and r24,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="stringliteral">"ldd r25,%A7\n"</span></div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="stringliteral">"eor r25,r24\n"</span></div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="stringliteral">"std %A7,r25\n"</span></div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// Rotate V right by 1 bit.</span></div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="stringliteral">"lsr %A0\n"</span></div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="stringliteral">"ror %B0\n"</span></div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="stringliteral">"ror %C0\n"</span></div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="stringliteral">"ror %D0\n"</span></div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="stringliteral">"ror %A1\n"</span></div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="stringliteral">"ror %B1\n"</span></div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="stringliteral">"ror %C1\n"</span></div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="stringliteral">"ror %D1\n"</span></div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="stringliteral">"ror %A2\n"</span></div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="stringliteral">"ror %B2\n"</span></div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="stringliteral">"ror %C2\n"</span></div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="stringliteral">"ror %D2\n"</span></div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="stringliteral">"ror %A3\n"</span></div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="stringliteral">"ror %B3\n"</span></div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="stringliteral">"ror %C3\n"</span></div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="stringliteral">"ror %D3\n"</span></div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="stringliteral">"mov r24,__zero_reg__\n"</span></div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="stringliteral">"sbc r24,__zero_reg__\n"</span></div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="stringliteral">"andi r24,0xE1\n"</span></div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="stringliteral">"eor %A0,r24\n"</span></div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  : <span class="stringliteral">"+r"</span>(V0), <span class="stringliteral">"+r"</span>(V1), <span class="stringliteral">"+r"</span>(V2), <span class="stringliteral">"+r"</span>(V3)</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  : <span class="stringliteral">"Q"</span>(Z[0]), <span class="stringliteral">"Q"</span>(Z[1]), <span class="stringliteral">"Q"</span>(Z[2]), <span class="stringliteral">"Q"</span>(Z[3]), <span class="stringliteral">"Q"</span>(value)</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  : <span class="stringliteral">"r24"</span>, <span class="stringliteral">"r25"</span></div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  );</div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  }</div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="comment">// We have finished the block so copy Z into Y and byte-swap.</span></div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  __asm__ __volatile__ (</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="stringliteral">"ldd __tmp_reg__,%A0\n"</span></div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="stringliteral">"ldd __tmp_reg__,%B0\n"</span></div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="stringliteral">"ldd __tmp_reg__,%C0\n"</span></div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="stringliteral">"ldd __tmp_reg__,%D0\n"</span></div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="stringliteral">"ldd __tmp_reg__,%A1\n"</span></div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="stringliteral">"ldd __tmp_reg__,%B1\n"</span></div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="stringliteral">"ldd __tmp_reg__,%C1\n"</span></div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="stringliteral">"ldd __tmp_reg__,%D1\n"</span></div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="stringliteral">"ldd __tmp_reg__,%A2\n"</span></div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="stringliteral">"ldd __tmp_reg__,%B2\n"</span></div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="stringliteral">"ldd __tmp_reg__,%C2\n"</span></div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="stringliteral">"ldd __tmp_reg__,%D2\n"</span></div>
|
|
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="stringliteral">"ldd __tmp_reg__,%A3\n"</span></div>
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="stringliteral">"ldd __tmp_reg__,%B3\n"</span></div>
|
|
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="stringliteral">"ldd __tmp_reg__,%C3\n"</span></div>
|
|
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="stringliteral">"st X+,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="stringliteral">"ldd __tmp_reg__,%D3\n"</span></div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="stringliteral">"st X,__tmp_reg__\n"</span></div>
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  : : <span class="stringliteral">"Q"</span>(Z[0]), <span class="stringliteral">"Q"</span>(Z[1]), <span class="stringliteral">"Q"</span>(Z[2]), <span class="stringliteral">"Q"</span>(Z[3]), <span class="stringliteral">"x"</span>(Y)</div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  );</div>
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="preprocessor">#else // !__AVR__</span></div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="preprocessor"></span> uint32_t Z0 = 0; <span class="comment">// Z = 0</span></div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  uint32_t Z1 = 0;</div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  uint32_t Z2 = 0;</div>
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  uint32_t Z3 = 0;</div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  uint32_t V0 = H[0]; <span class="comment">// V = H</span></div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  uint32_t V1 = H[1];</div>
|
|
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  uint32_t V2 = H[2];</div>
|
|
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  uint32_t V3 = H[3];</div>
|
|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div>
|
|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="comment">// Multiply Z by V for the set bits in Y, starting at the top.</span></div>
|
|
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="comment">// This is a very simple bit by bit version that may not be very</span></div>
|
|
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">// fast but it should be resistant to cache timing attacks.</span></div>
|
|
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">for</span> (uint8_t posn = 0; posn < 16; ++posn) {</div>
|
|
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  uint8_t value = ((<span class="keyword">const</span> uint8_t *)Y)[posn];</div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">for</span> (uint8_t bit = 0; bit < 8; ++bit, value <<= 1) {</div>
|
|
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="comment">// Extract the high bit of "value" and turn it into a mask.</span></div>
|
|
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  uint32_t mask = (~((uint32_t)(value >> 7))) + 1;</div>
|
|
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> </div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">// XOR V with Z if the bit is 1.</span></div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  Z0 ^= (V0 & mask);</div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  Z1 ^= (V1 & mask);</div>
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  Z2 ^= (V2 & mask);</div>
|
|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  Z3 ^= (V3 & mask);</div>
|
|
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> </div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// Rotate V right by 1 bit.</span></div>
|
|
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  mask = ((~(V3 & 0x01)) + 1) & 0xE1000000;</div>
|
|
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  V3 = (V3 >> 1) | (V2 << 31);</div>
|
|
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  V2 = (V2 >> 1) | (V1 << 31);</div>
|
|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  V1 = (V1 >> 1) | (V0 << 31);</div>
|
|
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  V0 = (V0 >> 1) ^ mask;</div>
|
|
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  }</div>
|
|
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  }</div>
|
|
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> </div>
|
|
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="comment">// We have finished the block so copy Z into Y and byte-swap.</span></div>
|
|
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  Y[0] = htobe32(Z0);</div>
|
|
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  Y[1] = htobe32(Z1);</div>
|
|
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  Y[2] = htobe32(Z2);</div>
|
|
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  Y[3] = htobe32(Z3);</div>
|
|
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="preprocessor">#endif // !__AVR__</span></div>
|
|
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="preprocessor"></span>}</div>
|
|
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"><a class="line" href="classGF128.html#aef22f6b7be5937f60ed2b7bcf831e52d"> 314</a></span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#aef22f6b7be5937f60ed2b7bcf831e52d">GF128::dbl</a>(uint32_t V[4])</div>
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|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> {</div>
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|
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="preprocessor">#if defined(__AVR__)</span></div>
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|
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="preprocessor"></span> __asm__ __volatile__ (</div>
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|
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="stringliteral">"ld r16,Z\n"</span></div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="stringliteral">"ldd r17,Z+1\n"</span></div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="stringliteral">"ldd r18,Z+2\n"</span></div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="stringliteral">"ldd r19,Z+3\n"</span></div>
|
|
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="stringliteral">"lsr r16\n"</span></div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="stringliteral">"ror r17\n"</span></div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="stringliteral">"ror r18\n"</span></div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="stringliteral">"ror r19\n"</span></div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="stringliteral">"std Z+1,r17\n"</span></div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="stringliteral">"std Z+2,r18\n"</span></div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="stringliteral">"std Z+3,r19\n"</span></div>
|
|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="stringliteral">"ldd r17,Z+4\n"</span></div>
|
|
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="stringliteral">"ldd r18,Z+5\n"</span></div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="stringliteral">"ldd r19,Z+6\n"</span></div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="stringliteral">"ldd r20,Z+7\n"</span></div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="stringliteral">"ror r17\n"</span></div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="stringliteral">"ror r18\n"</span></div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="stringliteral">"ror r19\n"</span></div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="stringliteral">"ror r20\n"</span></div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="stringliteral">"std Z+4,r17\n"</span></div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="stringliteral">"std Z+5,r18\n"</span></div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="stringliteral">"std Z+6,r19\n"</span></div>
|
|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="stringliteral">"std Z+7,r20\n"</span></div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="stringliteral">"ldd r17,Z+8\n"</span></div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="stringliteral">"ldd r18,Z+9\n"</span></div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="stringliteral">"ldd r19,Z+10\n"</span></div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="stringliteral">"ldd r20,Z+11\n"</span></div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="stringliteral">"ror r17\n"</span></div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="stringliteral">"ror r18\n"</span></div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="stringliteral">"ror r19\n"</span></div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="stringliteral">"ror r20\n"</span></div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="stringliteral">"std Z+8,r17\n"</span></div>
|
|
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="stringliteral">"std Z+9,r18\n"</span></div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="stringliteral">"std Z+10,r19\n"</span></div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="stringliteral">"std Z+11,r20\n"</span></div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="stringliteral">"ldd r17,Z+12\n"</span></div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="stringliteral">"ldd r18,Z+13\n"</span></div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="stringliteral">"ldd r19,Z+14\n"</span></div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="stringliteral">"ldd r20,Z+15\n"</span></div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="stringliteral">"ror r17\n"</span></div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="stringliteral">"ror r18\n"</span></div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="stringliteral">"ror r19\n"</span></div>
|
|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="stringliteral">"ror r20\n"</span></div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="stringliteral">"std Z+12,r17\n"</span></div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="stringliteral">"std Z+13,r18\n"</span></div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="stringliteral">"std Z+14,r19\n"</span></div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="stringliteral">"std Z+15,r20\n"</span></div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="stringliteral">"mov r17,__zero_reg__\n"</span></div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="stringliteral">"sbc r17,__zero_reg__\n"</span></div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="stringliteral">"andi r17,0xE1\n"</span></div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="stringliteral">"eor r16,r17\n"</span></div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="stringliteral">"st Z,r16\n"</span></div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  : : <span class="stringliteral">"z"</span>(V)</div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  : <span class="stringliteral">"r16"</span>, <span class="stringliteral">"r17"</span>, <span class="stringliteral">"r18"</span>, <span class="stringliteral">"r19"</span>, <span class="stringliteral">"r20"</span></div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  );</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="preprocessor">#else</span></div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="preprocessor"></span> uint32_t V0 = be32toh(V[0]);</div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  uint32_t V1 = be32toh(V[1]);</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  uint32_t V2 = be32toh(V[2]);</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  uint32_t V3 = be32toh(V[3]);</div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  uint32_t mask = ((~(V3 & 0x01)) + 1) & 0xE1000000;</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  V3 = (V3 >> 1) | (V2 << 31);</div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  V2 = (V2 >> 1) | (V1 << 31);</div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  V1 = (V1 >> 1) | (V0 << 31);</div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  V0 = (V0 >> 1) ^ mask;</div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  V[0] = htobe32(V0);</div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  V[1] = htobe32(V1);</div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  V[2] = htobe32(V2);</div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  V[3] = htobe32(V3);</div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="preprocessor"></span>}</div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> </div>
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|
<div class="line"><a name="l00406"></a><span class="lineno"><a class="line" href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4"> 406</a></span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4">GF128::dblEAX</a>(uint32_t V[4])</div>
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|
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> {</div>
|
|
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="preprocessor">#if defined(__AVR__)</span></div>
|
|
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="preprocessor"></span> __asm__ __volatile__ (</div>
|
|
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="stringliteral">"ldd r16,Z+15\n"</span></div>
|
|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="stringliteral">"ldd r17,Z+14\n"</span></div>
|
|
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="stringliteral">"ldd r18,Z+13\n"</span></div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="stringliteral">"ldd r19,Z+12\n"</span></div>
|
|
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="stringliteral">"lsl r16\n"</span></div>
|
|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
|
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="stringliteral">"std Z+14,r17\n"</span></div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="stringliteral">"std Z+13,r18\n"</span></div>
|
|
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="stringliteral">"std Z+12,r19\n"</span></div>
|
|
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="stringliteral">"ldd r17,Z+11\n"</span></div>
|
|
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="stringliteral">"ldd r18,Z+10\n"</span></div>
|
|
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="stringliteral">"ldd r19,Z+9\n"</span></div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="stringliteral">"ldd r20,Z+8\n"</span></div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="stringliteral">"rol r20\n"</span></div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="stringliteral">"std Z+11,r17\n"</span></div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="stringliteral">"std Z+10,r18\n"</span></div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="stringliteral">"std Z+9,r19\n"</span></div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="stringliteral">"std Z+8,r20\n"</span></div>
|
|
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="stringliteral">"ldd r17,Z+7\n"</span></div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="stringliteral">"ldd r18,Z+6\n"</span></div>
|
|
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="stringliteral">"ldd r19,Z+5\n"</span></div>
|
|
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="stringliteral">"ldd r20,Z+4\n"</span></div>
|
|
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
|
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
|
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="stringliteral">"rol r20\n"</span></div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="stringliteral">"std Z+7,r17\n"</span></div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="stringliteral">"std Z+6,r18\n"</span></div>
|
|
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="stringliteral">"std Z+5,r19\n"</span></div>
|
|
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="stringliteral">"std Z+4,r20\n"</span></div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="stringliteral">"ldd r17,Z+3\n"</span></div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="stringliteral">"ldd r18,Z+2\n"</span></div>
|
|
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="stringliteral">"ldd r19,Z+1\n"</span></div>
|
|
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="stringliteral">"ld r20,Z\n"</span></div>
|
|
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
|
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
|
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
|
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="stringliteral">"rol r20\n"</span></div>
|
|
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="stringliteral">"std Z+3,r17\n"</span></div>
|
|
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="stringliteral">"std Z+2,r18\n"</span></div>
|
|
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="stringliteral">"std Z+1,r19\n"</span></div>
|
|
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="stringliteral">"st Z,r20\n"</span></div>
|
|
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="stringliteral">"mov r17,__zero_reg__\n"</span></div>
|
|
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="stringliteral">"sbc r17,__zero_reg__\n"</span></div>
|
|
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="stringliteral">"andi r17,0x87\n"</span></div>
|
|
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="stringliteral">"eor r16,r17\n"</span></div>
|
|
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="stringliteral">"std Z+15,r16\n"</span></div>
|
|
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  : : <span class="stringliteral">"z"</span>(V)</div>
|
|
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  : <span class="stringliteral">"r16"</span>, <span class="stringliteral">"r17"</span>, <span class="stringliteral">"r18"</span>, <span class="stringliteral">"r19"</span>, <span class="stringliteral">"r20"</span></div>
|
|
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  );</div>
|
|
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="preprocessor">#else</span></div>
|
|
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="preprocessor"></span> uint32_t V0 = be32toh(V[0]);</div>
|
|
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  uint32_t V1 = be32toh(V[1]);</div>
|
|
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  uint32_t V2 = be32toh(V[2]);</div>
|
|
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  uint32_t V3 = be32toh(V[3]);</div>
|
|
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  uint32_t mask = ((~(V0 >> 31)) + 1) & 0x00000087;</div>
|
|
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  V0 = (V0 << 1) | (V1 >> 31);</div>
|
|
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  V1 = (V1 << 1) | (V2 >> 31);</div>
|
|
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  V2 = (V2 << 1) | (V3 >> 31);</div>
|
|
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  V3 = (V3 << 1) ^ mask;</div>
|
|
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  V[0] = htobe32(V0);</div>
|
|
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  V[1] = htobe32(V1);</div>
|
|
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  V[2] = htobe32(V2);</div>
|
|
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  V[3] = htobe32(V3);</div>
|
|
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="preprocessor"></span>}</div>
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<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> </div>
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<div class="line"><a name="l00497"></a><span class="lineno"><a class="line" href="classGF128.html#a3732c9471771c36ac1b518e974d46b3e"> 497</a></span> <span class="keywordtype">void</span> <a class="code" href="classGF128.html#a3732c9471771c36ac1b518e974d46b3e">GF128::dblXTS</a>(uint32_t V[4])</div>
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<div class="line"><a name="l00498"></a><span class="lineno"> 498</span> {</div>
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<div class="line"><a name="l00499"></a><span class="lineno"> 499</span> <span class="preprocessor">#if defined(__AVR__)</span></div>
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<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="preprocessor"></span> __asm__ __volatile__ (</div>
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<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="stringliteral">"ld r16,Z\n"</span></div>
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|
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="stringliteral">"ldd r17,Z+1\n"</span></div>
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|
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="stringliteral">"ldd r18,Z+2\n"</span></div>
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<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="stringliteral">"ldd r19,Z+3\n"</span></div>
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|
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="stringliteral">"lsl r16\n"</span></div>
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|
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="stringliteral">"rol r17\n"</span></div>
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<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
|
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="stringliteral">"rol r19\n"</span></div>
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|
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="stringliteral">"std Z+1,r17\n"</span></div>
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|
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="stringliteral">"std Z+2,r18\n"</span></div>
|
|
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="stringliteral">"std Z+3,r19\n"</span></div>
|
|
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="stringliteral">"ldd r17,Z+4\n"</span></div>
|
|
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="stringliteral">"ldd r18,Z+5\n"</span></div>
|
|
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="stringliteral">"ldd r19,Z+6\n"</span></div>
|
|
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="stringliteral">"ldd r20,Z+7\n"</span></div>
|
|
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
|
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
|
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
|
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="stringliteral">"rol r20\n"</span></div>
|
|
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="stringliteral">"std Z+4,r17\n"</span></div>
|
|
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="stringliteral">"std Z+5,r18\n"</span></div>
|
|
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="stringliteral">"std Z+6,r19\n"</span></div>
|
|
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="stringliteral">"std Z+7,r20\n"</span></div>
|
|
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="stringliteral">"ldd r17,Z+8\n"</span></div>
|
|
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="stringliteral">"ldd r18,Z+9\n"</span></div>
|
|
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="stringliteral">"ldd r19,Z+10\n"</span></div>
|
|
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="stringliteral">"ldd r20,Z+11\n"</span></div>
|
|
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
|
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
|
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
|
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="stringliteral">"rol r20\n"</span></div>
|
|
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="stringliteral">"std Z+8,r17\n"</span></div>
|
|
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="stringliteral">"std Z+9,r18\n"</span></div>
|
|
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="stringliteral">"std Z+10,r19\n"</span></div>
|
|
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="stringliteral">"std Z+11,r20\n"</span></div>
|
|
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="stringliteral">"ldd r17,Z+12\n"</span></div>
|
|
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="stringliteral">"ldd r18,Z+13\n"</span></div>
|
|
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="stringliteral">"ldd r19,Z+14\n"</span></div>
|
|
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="stringliteral">"ldd r20,Z+15\n"</span></div>
|
|
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <span class="stringliteral">"rol r17\n"</span></div>
|
|
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <span class="stringliteral">"rol r18\n"</span></div>
|
|
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="stringliteral">"rol r19\n"</span></div>
|
|
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="stringliteral">"rol r20\n"</span></div>
|
|
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="stringliteral">"std Z+12,r17\n"</span></div>
|
|
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <span class="stringliteral">"std Z+13,r18\n"</span></div>
|
|
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="stringliteral">"std Z+14,r19\n"</span></div>
|
|
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="stringliteral">"std Z+15,r20\n"</span></div>
|
|
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="stringliteral">"mov r17,__zero_reg__\n"</span></div>
|
|
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="stringliteral">"sbc r17,__zero_reg__\n"</span></div>
|
|
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <span class="stringliteral">"andi r17,0x87\n"</span></div>
|
|
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <span class="stringliteral">"eor r16,r17\n"</span></div>
|
|
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <span class="stringliteral">"st Z,r16\n"</span></div>
|
|
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  : : <span class="stringliteral">"z"</span>(V)</div>
|
|
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  : <span class="stringliteral">"r16"</span>, <span class="stringliteral">"r17"</span>, <span class="stringliteral">"r18"</span>, <span class="stringliteral">"r19"</span>, <span class="stringliteral">"r20"</span></div>
|
|
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  );</div>
|
|
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="preprocessor">#else</span></div>
|
|
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="preprocessor"></span> uint32_t V0 = le32toh(V[0]);</div>
|
|
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  uint32_t V1 = le32toh(V[1]);</div>
|
|
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  uint32_t V2 = le32toh(V[2]);</div>
|
|
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  uint32_t V3 = le32toh(V[3]);</div>
|
|
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  uint32_t mask = ((~(V3 >> 31)) + 1) & 0x00000087;</div>
|
|
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  V3 = (V3 << 1) | (V2 >> 31);</div>
|
|
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  V2 = (V2 << 1) | (V1 >> 31);</div>
|
|
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  V1 = (V1 << 1) | (V0 >> 31);</div>
|
|
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  V0 = (V0 << 1) ^ mask;</div>
|
|
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  V[0] = htole32(V0);</div>
|
|
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  V[1] = htole32(V1);</div>
|
|
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  V[2] = htole32(V2);</div>
|
|
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  V[3] = htole32(V3);</div>
|
|
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span> <span class="preprocessor"></span>}</div>
|
|
<div class="ttc" id="classGF128_html_a3732c9471771c36ac1b518e974d46b3e"><div class="ttname"><a href="classGF128.html#a3732c9471771c36ac1b518e974d46b3e">GF128::dblXTS</a></div><div class="ttdeci">static void dblXTS(uint32_t V[4])</div><div class="ttdoc">Doubles a value in the GF(2^128) field using XTS conventions. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00497">GF128.cpp:497</a></div></div>
|
|
<div class="ttc" id="classGF128_html_a56000a4cd7d436de42360e9d43eecde4"><div class="ttname"><a href="classGF128.html#a56000a4cd7d436de42360e9d43eecde4">GF128::dblEAX</a></div><div class="ttdeci">static void dblEAX(uint32_t V[4])</div><div class="ttdoc">Doubles a value in the GF(2^128) field using EAX conventions. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00406">GF128.cpp:406</a></div></div>
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<div class="ttc" id="classGF128_html_a7d9a341a1715d37d25feba21627bc3ab"><div class="ttname"><a href="classGF128.html#a7d9a341a1715d37d25feba21627bc3ab">GF128::mul</a></div><div class="ttdeci">static void mul(uint32_t Y[4], const uint32_t H[4])</div><div class="ttdoc">Perform a multiplication in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00090">GF128.cpp:90</a></div></div>
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<div class="ttc" id="classGF128_html_aef22f6b7be5937f60ed2b7bcf831e52d"><div class="ttname"><a href="classGF128.html#aef22f6b7be5937f60ed2b7bcf831e52d">GF128::dbl</a></div><div class="ttdeci">static void dbl(uint32_t V[4])</div><div class="ttdoc">Doubles a value in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00314">GF128.cpp:314</a></div></div>
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<div class="ttc" id="classGF128_html_a43adbd72619e4f97ce427a60e7c0a248"><div class="ttname"><a href="classGF128.html#a43adbd72619e4f97ce427a60e7c0a248">GF128::mulInit</a></div><div class="ttdeci">static void mulInit(uint32_t H[4], const void *key)</div><div class="ttdoc">Initialize multiplication in the GF(2^128) field. </div><div class="ttdef"><b>Definition:</b> <a href="GF128_8cpp_source.html#l00058">GF128.cpp:58</a></div></div>
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