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<a href="_lo_ra_mac_crypto_mini_mouse_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> / _____) _ | |</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">( (____ _____ ____ _| |_ _____ ____| |__</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> \____ \| ___ | (_ _) ___ |/ ___) _ \</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> _____) ) ____| | | || |_| ____( (___| | | |</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">(______/|_____)_|_|_| \__)_____)\____)_| |_|</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> (C)2013 Semtech</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> ___ _____ _ ___ _ _____ ___ ___ ___ ___</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">/ __|_ _/_\ / __| |/ / __/ _ \| _ \/ __| __|</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">\__ \ | |/ _ \ (__| ' <| _| (_) | / (__| _|</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">|___/ |_/_/ \_\___|_|\_\_| \___/|_|_\\___|___|</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">embedded.connectivity.solutions===============</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">Description: LoRa MAC layer implementation</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">License: Revised BSD License, see LICENSE.TXT file include in the project</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">Maintainer: Miguel Luis ( Semtech ), Gregory Cristian ( Semtech ) and Daniel Jaeckle ( STACKFORCE )</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">*/</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <stdlib.h></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <stdint.h></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "<a class="code" href="utilities_8h.html">utilities.h</a>"</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "<a class="code" href="_define_8h.html">Define.h</a>"</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "<a class="code" href="aes_8h.html">aes.h</a>"</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="cmac_8h.html">cmac.h</a>"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="_lo_ra_mac_crypto_8h.html">LoRaMacCrypto.h</a>"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a5c3d9a633ffde7d6b49116095bf4395e"> 31</a></span> <span class="preprocessor">#define LORAMAC_MIC_BLOCK_B0_SIZE 16</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">static</span> uint8_t MicBlockB0[] = { 0x49, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  };</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">static</span> uint8_t Mic[16];</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">static</span> uint8_t aBlock[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  };</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">static</span> uint8_t sBlock[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  };</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">static</span> <a class="code" href="structaes__context.html">aes_context</a> AesContext;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">static</span> <a class="code" href="struct___a_e_s___c_m_a_c___c_t_x.html">AES_CMAC_CTX</a> AesCmacCtx[1];</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  </div><div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga6ee265070494b83255e7fdc4dff985da"> 82</a></span> <span class="keywordtype">void</span> <a class="code" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga6ee265070494b83255e7fdc4dff985da">LoRaMacComputeMic</a>( <span class="keyword">const</span> uint8_t *buffer, uint16_t size, <span class="keyword">const</span> uint8_t *key, uint32_t address, uint8_t dir, uint32_t sequenceCounter, uint32_t *mic )</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> {</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  MicBlockB0[5] = dir;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  MicBlockB0[6] = ( address ) & 0xFF;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  MicBlockB0[7] = ( address >> 8 ) & 0xFF;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  MicBlockB0[8] = ( address >> 16 ) & 0xFF;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  MicBlockB0[9] = ( address >> 24 ) & 0xFF;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  MicBlockB0[10] = ( sequenceCounter ) & 0xFF;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  MicBlockB0[11] = ( sequenceCounter >> 8 ) & 0xFF;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  MicBlockB0[12] = ( sequenceCounter >> 16 ) & 0xFF;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  MicBlockB0[13] = ( sequenceCounter >> 24 ) & 0xFF;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  MicBlockB0[15] = size & 0xFF;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <a class="code" href="cmac_8h.html#a0344ba56e27c8029332069892af08737">AES_CMAC_Init</a>( AesCmacCtx );</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="cmac_8h.html#a0cbe43f8858ba5fbf5bbd5f03e362170">AES_CMAC_SetKey</a>( AesCmacCtx, key );</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="cmac_8h.html#ad1be03bf3df1635dd5cbf8943f4d04f6">AES_CMAC_Update</a>( AesCmacCtx, MicBlockB0, <a class="code" href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a5c3d9a633ffde7d6b49116095bf4395e">LORAMAC_MIC_BLOCK_B0_SIZE</a> );</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="cmac_8h.html#ad1be03bf3df1635dd5cbf8943f4d04f6">AES_CMAC_Update</a>( AesCmacCtx, buffer, size & 0xFF );</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <a class="code" href="cmac_8h.html#a8ea4da33d50984199d8a91bc0ab86b15">AES_CMAC_Final</a>( Mic, AesCmacCtx );</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  *mic = ( uint32_t )( ( uint32_t )Mic[3] << 24 | ( uint32_t )Mic[2] << 16 | ( uint32_t )Mic[1] << 8 | ( uint32_t )Mic[0] );</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> }</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga50339e60abea2186ca7e584b489718b1"> 111</a></span> <span class="keywordtype">void</span> <a class="code" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga50339e60abea2186ca7e584b489718b1">LoRaMacPayloadEncrypt</a>( <span class="keyword">const</span> uint8_t *buffer, uint16_t size, <span class="keyword">const</span> uint8_t *key, uint32_t address, uint8_t dir, uint32_t sequenceCounter, uint8_t *encBuffer )</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> {</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  uint16_t i;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  uint8_t bufferIndex = 0;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  uint16_t ctr = 1;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <a class="code" href="utilities_8cpp.html#a272ed6d691263d9762c98ed720b1fa3a">memset1</a>( AesContext.<a class="code" href="structaes__context.html#ab476c78bbf83cabeb637d33c43cc35ee">ksch</a>, <span class="charliteral">'\0'</span>, 240 );</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="aes_8h.html#a0ffc37ee1bbb50e7147bf6e7de5d73a1">aes_set_key</a>( key, 16, &AesContext );</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  aBlock[5] = dir;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  aBlock[6] = ( address ) & 0xFF;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  aBlock[7] = ( address >> 8 ) & 0xFF;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  aBlock[8] = ( address >> 16 ) & 0xFF;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  aBlock[9] = ( address >> 24 ) & 0xFF;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  aBlock[10] = ( sequenceCounter ) & 0xFF;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  aBlock[11] = ( sequenceCounter >> 8 ) & 0xFF;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  aBlock[12] = ( sequenceCounter >> 16 ) & 0xFF;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  aBlock[13] = ( sequenceCounter >> 24 ) & 0xFF;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">while</span>( size >= 16 )</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  {</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  aBlock[15] = ( ( ctr ) & 0xFF );</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  ctr++;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="aes_8h.html#ac88fd4e9cb53f78713a8fce1a6fcffc0">aes_encrypt</a>( aBlock, sBlock, &AesContext );</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">for</span>( i = 0; i < 16; i++ )</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  {</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  encBuffer[bufferIndex + i] = buffer[bufferIndex + i] ^ sBlock[i];</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  size -= 16;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  bufferIndex += 16;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  }</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span>( size > 0 )</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  {</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  aBlock[15] = ( ( ctr ) & 0xFF );</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="aes_8h.html#ac88fd4e9cb53f78713a8fce1a6fcffc0">aes_encrypt</a>( aBlock, sBlock, &AesContext );</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">for</span>( i = 0; i < size; i++ )</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  encBuffer[bufferIndex + i] = buffer[bufferIndex + i] ^ sBlock[i];</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  }</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> }</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga41f9ba19f61b195420914ed58c8b94c7"> 156</a></span> <span class="keywordtype">void</span> <a class="code" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga41f9ba19f61b195420914ed58c8b94c7">LoRaMacPayloadDecrypt</a>( <span class="keyword">const</span> uint8_t *buffer, uint16_t size, <span class="keyword">const</span> uint8_t *key, uint32_t address, uint8_t dir, uint32_t sequenceCounter, uint8_t *decBuffer )</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> {</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <a class="code" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga50339e60abea2186ca7e584b489718b1">LoRaMacPayloadEncrypt</a>( buffer, size, key, address, dir, sequenceCounter, decBuffer );</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#gac9216af326316c9e7f207d4e73aed199"> 161</a></span> <span class="keywordtype">void</span> <a class="code" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#gac9216af326316c9e7f207d4e73aed199">LoRaMacJoinComputeMic</a>( <span class="keyword">const</span> uint8_t *buffer, uint16_t size, <span class="keyword">const</span> uint8_t *key, uint32_t *mic )</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> {</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <a class="code" href="cmac_8h.html#a0344ba56e27c8029332069892af08737">AES_CMAC_Init</a>( AesCmacCtx );</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <a class="code" href="cmac_8h.html#a0cbe43f8858ba5fbf5bbd5f03e362170">AES_CMAC_SetKey</a>( AesCmacCtx, key );</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <a class="code" href="cmac_8h.html#ad1be03bf3df1635dd5cbf8943f4d04f6">AES_CMAC_Update</a>( AesCmacCtx, buffer, size & 0xFF );</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="cmac_8h.html#a8ea4da33d50984199d8a91bc0ab86b15">AES_CMAC_Final</a>( Mic, AesCmacCtx );</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  *mic = ( uint32_t )( ( uint32_t )Mic[3] << 24 | ( uint32_t )Mic[2] << 16 | ( uint32_t )Mic[1] << 8 | ( uint32_t )Mic[0] );</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> }</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div><div class="line"><a name="l00175"></a><span class="lineno"><a class="line" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#gac2379cd7cbeb6febaa2a7be5d9f04b5c"> 175</a></span> <span class="keywordtype">void</span> <a class="code" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#gac2379cd7cbeb6febaa2a7be5d9f04b5c">LoRaMacJoinDecrypt</a>( <span class="keyword">const</span> uint8_t *buffer, uint16_t size, <span class="keyword">const</span> uint8_t *key, uint8_t *decBuffer )</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> {</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <a class="code" href="utilities_8cpp.html#a272ed6d691263d9762c98ed720b1fa3a">memset1</a>( AesContext.<a class="code" href="structaes__context.html#ab476c78bbf83cabeb637d33c43cc35ee">ksch</a>, <span class="charliteral">'\0'</span>, 240 );</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="aes_8h.html#a0ffc37ee1bbb50e7147bf6e7de5d73a1">aes_set_key</a>( key, 16, &AesContext );</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a class="code" href="aes_8h.html#ac88fd4e9cb53f78713a8fce1a6fcffc0">aes_encrypt</a>( buffer, decBuffer, &AesContext );</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="comment">// Check if optional CFList is included</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">if</span>( size >= 16 )</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  {</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <a class="code" href="aes_8h.html#ac88fd4e9cb53f78713a8fce1a6fcffc0">aes_encrypt</a>( buffer + 16, decBuffer + 16, &AesContext );</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> }</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"><a class="line" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#gad6fc2ace27fa388ec860fc2e5ae1f544"> 187</a></span> <span class="keywordtype">void</span> <a class="code" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#gad6fc2ace27fa388ec860fc2e5ae1f544">LoRaMacJoinComputeSKeys</a>( <span class="keyword">const</span> uint8_t *key, <span class="keyword">const</span> uint8_t *appNonce, uint16_t devNonce, uint8_t *nwkSKey, uint8_t *appSKey )</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> {</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  uint8_t nonce[16];</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  uint8_t *pDevNonce = ( uint8_t * )&devNonce;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  </div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <a class="code" href="utilities_8cpp.html#a272ed6d691263d9762c98ed720b1fa3a">memset1</a>( AesContext.<a class="code" href="structaes__context.html#ab476c78bbf83cabeb637d33c43cc35ee">ksch</a>, <span class="charliteral">'\0'</span>, 240 );</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <a class="code" href="aes_8h.html#a0ffc37ee1bbb50e7147bf6e7de5d73a1">aes_set_key</a>( key, 16, &AesContext );</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>  <a class="code" href="utilities_8cpp.html#a272ed6d691263d9762c98ed720b1fa3a">memset1</a>( nonce, 0, <span class="keyword">sizeof</span>( nonce ) );</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  nonce[0] = 0x01;</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <a class="code" href="utilities_8cpp.html#abfbe672c7136122f16c9214bc4ba8d21">memcpy1</a>( nonce + 1, appNonce, 6 );</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <a class="code" href="utilities_8cpp.html#abfbe672c7136122f16c9214bc4ba8d21">memcpy1</a>( nonce + 7, pDevNonce, 2 );</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <a class="code" href="aes_8h.html#ac88fd4e9cb53f78713a8fce1a6fcffc0">aes_encrypt</a>( nonce, nwkSKey, &AesContext );</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <a class="code" href="utilities_8cpp.html#a272ed6d691263d9762c98ed720b1fa3a">memset1</a>( nonce, 0, <span class="keyword">sizeof</span>( nonce ) );</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  nonce[0] = 0x02;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="utilities_8cpp.html#abfbe672c7136122f16c9214bc4ba8d21">memcpy1</a>( nonce + 1, appNonce, 6 );</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <a class="code" href="utilities_8cpp.html#abfbe672c7136122f16c9214bc4ba8d21">memcpy1</a>( nonce + 7, pDevNonce, 2 );</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <a class="code" href="aes_8h.html#ac88fd4e9cb53f78713a8fce1a6fcffc0">aes_encrypt</a>( nonce, appSKey, &AesContext );</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> }</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div><div class="line"><a name="l00209"></a><span class="lineno"><a class="line" href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a35ef45aa2ea7a562a7307c3e3a434300"> 209</a></span> <span class="keywordtype">void</span> <a class="code" href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a35ef45aa2ea7a562a7307c3e3a434300">LoRaMacComputeAndAddMic</a>( uint8_t *buffer, uint16_t size, <span class="keyword">const</span> uint8_t *key, uint32_t address, uint8_t dir, uint32_t sequenceCounter)</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> {</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  uint32_t mic;</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <a class="code" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga6ee265070494b83255e7fdc4dff985da">LoRaMacComputeMic</a>(buffer,size, key, address,dir, sequenceCounter,&mic );</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  memcpy(&buffer[size],(uint8_t *)&mic,4);</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> }</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div><div class="line"><a name="l00216"></a><span class="lineno"><a class="line" href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a6045e63e9d0bcd83722aa50fcef0abc5"> 216</a></span> <span class="keywordtype">int</span> <a class="code" href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a6045e63e9d0bcd83722aa50fcef0abc5">LoRaMacCheckMic</a>( uint8_t *buffer, uint16_t size, <span class="keyword">const</span> uint8_t *key, uint32_t address, uint32_t sequenceCounter, uint32_t micIn ){</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  uint32_t mic;</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordtype">int</span> status = -1 ;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <a class="code" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga6ee265070494b83255e7fdc4dff985da">LoRaMacComputeMic</a>( buffer,size, key, address, 1, sequenceCounter,&mic );</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">if</span> ( mic == micIn ) {</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  status = 0;</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="keywordflow">return</span> ( status );</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> }</div><div class="line"><a name="l00225"></a><span class="lineno"><a class="line" href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a759976ba9dbb6009faff8022074992e1"> 225</a></span> <span class="keywordtype">int</span> <a class="code" href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a759976ba9dbb6009faff8022074992e1">LoRaMacCheckJoinMic</a>( <span class="keyword">const</span> uint8_t *buffer, uint16_t size, <span class="keyword">const</span> uint8_t *key, uint32_t micIn) {</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  uint32_t mic;</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordtype">int</span> status = -1 ;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <a class="code" href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#gac9216af326316c9e7f207d4e73aed199">LoRaMacJoinComputeMic</a>(buffer, size, key, &mic ); </div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">if</span> ( mic == micIn ) {</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  status = 0;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  }</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> ( status );</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> }</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> </div><div class="ttc" id="group___l_o_r_a_m_a_c___c_r_y_p_t_o_html_ga6ee265070494b83255e7fdc4dff985da"><div class="ttname"><a href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga6ee265070494b83255e7fdc4dff985da">LoRaMacComputeMic</a></div><div class="ttdeci">void LoRaMacComputeMic(const uint8_t *buffer, uint16_t size, const uint8_t *key, uint32_t address, uint8_t dir, uint32_t sequenceCounter, uint32_t *mic)</div><div class="ttdoc">Computes the LoRaMAC frame MIC field. </div><div class="ttdef"><b>Definition:</b> <a href="_lo_ra_mac_crypto_mini_mouse_8cpp_source.html#l00082">LoRaMacCryptoMiniMouse.cpp:82</a></div></div>
<div class="ttc" id="structaes__context_html_ab476c78bbf83cabeb637d33c43cc35ee"><div class="ttname"><a href="structaes__context.html#ab476c78bbf83cabeb637d33c43cc35ee">aes_context::ksch</a></div><div class="ttdeci">uint8_t ksch[(N_MAX_ROUNDS+1) *N_BLOCK]</div><div class="ttdef"><b>Definition:</b> <a href="aes_8h_source.html#l00070">aes.h:70</a></div></div>
<div class="ttc" id="utilities_8h_html"><div class="ttname"><a href="utilities_8h.html">utilities.h</a></div></div>
<div class="ttc" id="structaes__context_html"><div class="ttname"><a href="structaes__context.html">aes_context</a></div><div class="ttdef"><b>Definition:</b> <a href="aes_8h_source.html#l00069">aes.h:69</a></div></div>
<div class="ttc" id="cmac_8h_html_a0344ba56e27c8029332069892af08737"><div class="ttname"><a href="cmac_8h.html#a0344ba56e27c8029332069892af08737">AES_CMAC_Init</a></div><div class="ttdeci">void AES_CMAC_Init(AES_CMAC_CTX *ctx)</div><div class="ttdef"><b>Definition:</b> <a href="_mini_mouse_cmac_8cpp_source.html#l00058">MiniMouseCmac.cpp:58</a></div></div>
<div class="ttc" id="cmac_8h_html"><div class="ttname"><a href="cmac_8h.html">cmac.h</a></div></div>
<div class="ttc" id="cmac_8h_html_a0cbe43f8858ba5fbf5bbd5f03e362170"><div class="ttname"><a href="cmac_8h.html#a0cbe43f8858ba5fbf5bbd5f03e362170">AES_CMAC_SetKey</a></div><div class="ttdeci">void AES_CMAC_SetKey(AES_CMAC_CTX *ctx, const uint8_t key[AES_CMAC_KEY_LENGTH])</div><div class="ttdef"><b>Definition:</b> <a href="_mini_mouse_cmac_8cpp_source.html#l00065">MiniMouseCmac.cpp:65</a></div></div>
<div class="ttc" id="aes_8h_html_ac88fd4e9cb53f78713a8fce1a6fcffc0"><div class="ttname"><a href="aes_8h.html#ac88fd4e9cb53f78713a8fce1a6fcffc0">aes_encrypt</a></div><div class="ttdeci">return_type aes_encrypt(const uint8_t in[N_BLOCK], uint8_t out[N_BLOCK], const aes_context ctx[1])</div><div class="ttdef"><b>Definition:</b> <a href="_mini_mouse_aes_8cpp_source.html#l00568">MiniMouseAes.cpp:568</a></div></div>
<div class="ttc" id="group___l_o_r_a_m_a_c___c_r_y_p_t_o_html_ga50339e60abea2186ca7e584b489718b1"><div class="ttname"><a href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga50339e60abea2186ca7e584b489718b1">LoRaMacPayloadEncrypt</a></div><div class="ttdeci">void LoRaMacPayloadEncrypt(const uint8_t *buffer, uint16_t size, const uint8_t *key, uint32_t address, uint8_t dir, uint32_t sequenceCounter, uint8_t *encBuffer)</div><div class="ttdef"><b>Definition:</b> <a href="_lo_ra_mac_crypto_mini_mouse_8cpp_source.html#l00111">LoRaMacCryptoMiniMouse.cpp:111</a></div></div>
<div class="ttc" id="group___l_o_r_a_m_a_c___c_r_y_p_t_o_html_ga41f9ba19f61b195420914ed58c8b94c7"><div class="ttname"><a href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#ga41f9ba19f61b195420914ed58c8b94c7">LoRaMacPayloadDecrypt</a></div><div class="ttdeci">void LoRaMacPayloadDecrypt(const uint8_t *buffer, uint16_t size, const uint8_t *key, uint32_t address, uint8_t dir, uint32_t sequenceCounter, uint8_t *decBuffer)</div><div class="ttdef"><b>Definition:</b> <a href="_lo_ra_mac_crypto_mini_mouse_8cpp_source.html#l00156">LoRaMacCryptoMiniMouse.cpp:156</a></div></div>
<div class="ttc" id="_lo_ra_mac_crypto_mini_mouse_8cpp_html_a759976ba9dbb6009faff8022074992e1"><div class="ttname"><a href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a759976ba9dbb6009faff8022074992e1">LoRaMacCheckJoinMic</a></div><div class="ttdeci">int LoRaMacCheckJoinMic(const uint8_t *buffer, uint16_t size, const uint8_t *key, uint32_t micIn)</div><div class="ttdef"><b>Definition:</b> <a href="_lo_ra_mac_crypto_mini_mouse_8cpp_source.html#l00225">LoRaMacCryptoMiniMouse.cpp:225</a></div></div>
<div class="ttc" id="cmac_8h_html_a8ea4da33d50984199d8a91bc0ab86b15"><div class="ttname"><a href="cmac_8h.html#a8ea4da33d50984199d8a91bc0ab86b15">AES_CMAC_Final</a></div><div class="ttdeci">void AES_CMAC_Final(uint8_t digest[AES_CMAC_DIGEST_LENGTH], AES_CMAC_CTX *ctx)</div><div class="ttdef"><b>Definition:</b> <a href="_mini_mouse_cmac_8cpp_source.html#l00105">MiniMouseCmac.cpp:105</a></div></div>
<div class="ttc" id="_lo_ra_mac_crypto_mini_mouse_8cpp_html_a35ef45aa2ea7a562a7307c3e3a434300"><div class="ttname"><a href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a35ef45aa2ea7a562a7307c3e3a434300">LoRaMacComputeAndAddMic</a></div><div class="ttdeci">void LoRaMacComputeAndAddMic(uint8_t *buffer, uint16_t size, const uint8_t *key, uint32_t address, uint8_t dir, uint32_t sequenceCounter)</div><div class="ttdef"><b>Definition:</b> <a href="_lo_ra_mac_crypto_mini_mouse_8cpp_source.html#l00209">LoRaMacCryptoMiniMouse.cpp:209</a></div></div>
<div class="ttc" id="_define_8h_html"><div class="ttname"><a href="_define_8h.html">Define.h</a></div><div class="ttdoc">LoRaWan Mac parameters. </div></div>
<div class="ttc" id="group___l_o_r_a_m_a_c___c_r_y_p_t_o_html_gac2379cd7cbeb6febaa2a7be5d9f04b5c"><div class="ttname"><a href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#gac2379cd7cbeb6febaa2a7be5d9f04b5c">LoRaMacJoinDecrypt</a></div><div class="ttdeci">void LoRaMacJoinDecrypt(const uint8_t *buffer, uint16_t size, const uint8_t *key, uint8_t *decBuffer)</div><div class="ttdef"><b>Definition:</b> <a href="_lo_ra_mac_crypto_mini_mouse_8cpp_source.html#l00175">LoRaMacCryptoMiniMouse.cpp:175</a></div></div>
<div class="ttc" id="aes_8h_html"><div class="ttname"><a href="aes_8h.html">aes.h</a></div></div>
<div class="ttc" id="group___l_o_r_a_m_a_c___c_r_y_p_t_o_html_gad6fc2ace27fa388ec860fc2e5ae1f544"><div class="ttname"><a href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#gad6fc2ace27fa388ec860fc2e5ae1f544">LoRaMacJoinComputeSKeys</a></div><div class="ttdeci">void LoRaMacJoinComputeSKeys(const uint8_t *key, const uint8_t *appNonce, uint16_t devNonce, uint8_t *nwkSKey, uint8_t *appSKey)</div><div class="ttdef"><b>Definition:</b> <a href="_lo_ra_mac_crypto_mini_mouse_8cpp_source.html#l00187">LoRaMacCryptoMiniMouse.cpp:187</a></div></div>
<div class="ttc" id="group___l_o_r_a_m_a_c___c_r_y_p_t_o_html_gac9216af326316c9e7f207d4e73aed199"><div class="ttname"><a href="group___l_o_r_a_m_a_c___c_r_y_p_t_o.html#gac9216af326316c9e7f207d4e73aed199">LoRaMacJoinComputeMic</a></div><div class="ttdeci">void LoRaMacJoinComputeMic(const uint8_t *buffer, uint16_t size, const uint8_t *key, uint32_t *mic)</div><div class="ttdef"><b>Definition:</b> <a href="_lo_ra_mac_crypto_mini_mouse_8cpp_source.html#l00161">LoRaMacCryptoMiniMouse.cpp:161</a></div></div>
<div class="ttc" id="_lo_ra_mac_crypto_8h_html"><div class="ttname"><a href="_lo_ra_mac_crypto_8h.html">LoRaMacCrypto.h</a></div><div class="ttdoc">LoRa MAC layer cryptography implementation. </div></div>
<div class="ttc" id="struct___a_e_s___c_m_a_c___c_t_x_html"><div class="ttname"><a href="struct___a_e_s___c_m_a_c___c_t_x.html">_AES_CMAC_CTX</a></div><div class="ttdef"><b>Definition:</b> <a href="cmac_8h_source.html#l00044">cmac.h:44</a></div></div>
<div class="ttc" id="utilities_8cpp_html_a272ed6d691263d9762c98ed720b1fa3a"><div class="ttname"><a href="utilities_8cpp.html#a272ed6d691263d9762c98ed720b1fa3a">memset1</a></div><div class="ttdeci">void memset1(uint8_t *dst, uint8_t value, uint16_t size)</div><div class="ttdoc">Set size elements of dst array with value. </div><div class="ttdef"><b>Definition:</b> <a href="utilities_8cpp_source.html#l00063">utilities.cpp:63</a></div></div>
<div class="ttc" id="utilities_8cpp_html_abfbe672c7136122f16c9214bc4ba8d21"><div class="ttname"><a href="utilities_8cpp.html#abfbe672c7136122f16c9214bc4ba8d21">memcpy1</a></div><div class="ttdeci">void memcpy1(uint8_t *dst, const uint8_t *src, uint16_t size)</div><div class="ttdoc">Copies size elements of src array to dst array. </div><div class="ttdef"><b>Definition:</b> <a href="utilities_8cpp_source.html#l00046">utilities.cpp:46</a></div></div>
<div class="ttc" id="aes_8h_html_a0ffc37ee1bbb50e7147bf6e7de5d73a1"><div class="ttname"><a href="aes_8h.html#a0ffc37ee1bbb50e7147bf6e7de5d73a1">aes_set_key</a></div><div class="ttdeci">return_type aes_set_key(const uint8_t key[], length_type keylen, aes_context ctx[1])</div><div class="ttdef"><b>Definition:</b> <a href="_mini_mouse_aes_8cpp_source.html#l00513">MiniMouseAes.cpp:513</a></div></div>
<div class="ttc" id="cmac_8h_html_ad1be03bf3df1635dd5cbf8943f4d04f6"><div class="ttname"><a href="cmac_8h.html#ad1be03bf3df1635dd5cbf8943f4d04f6">AES_CMAC_Update</a></div><div class="ttdeci">void AES_CMAC_Update(AES_CMAC_CTX *ctx, const uint8_t *data, uint32_t len)</div><div class="ttdef"><b>Definition:</b> <a href="_mini_mouse_cmac_8cpp_source.html#l00071">MiniMouseCmac.cpp:71</a></div></div>
<div class="ttc" id="_lo_ra_mac_crypto_mini_mouse_8cpp_html_a6045e63e9d0bcd83722aa50fcef0abc5"><div class="ttname"><a href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a6045e63e9d0bcd83722aa50fcef0abc5">LoRaMacCheckMic</a></div><div class="ttdeci">int LoRaMacCheckMic(uint8_t *buffer, uint16_t size, const uint8_t *key, uint32_t address, uint32_t sequenceCounter, uint32_t micIn)</div><div class="ttdef"><b>Definition:</b> <a href="_lo_ra_mac_crypto_mini_mouse_8cpp_source.html#l00216">LoRaMacCryptoMiniMouse.cpp:216</a></div></div>
<div class="ttc" id="_lo_ra_mac_crypto_mini_mouse_8cpp_html_a5c3d9a633ffde7d6b49116095bf4395e"><div class="ttname"><a href="_lo_ra_mac_crypto_mini_mouse_8cpp.html#a5c3d9a633ffde7d6b49116095bf4395e">LORAMAC_MIC_BLOCK_B0_SIZE</a></div><div class="ttdeci">#define LORAMAC_MIC_BLOCK_B0_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="_lo_ra_mac_crypto_mini_mouse_8cpp_source.html#l00031">LoRaMacCryptoMiniMouse.cpp:31</a></div></div>
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