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<div class="title">AESCommon.cpp</div> </div>
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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) 2015 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 "AES.h"</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "Crypto.h"</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "utility/ProgMemUtil.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="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#if defined(CRYPTO_AES_DEFAULT) || defined(CRYPTO_DOC)</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment">// AES S-box (http://en.wikipedia.org/wiki/Rijndael_S-box)</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">static</span> uint8_t <span class="keyword">const</span> sbox[256] PROGMEM = {</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, <span class="comment">// 0x00</span></div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, <span class="comment">// 0x10</span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, <span class="comment">// 0x20</span></div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, <span class="comment">// 0x30</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, <span class="comment">// 0x40</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, <span class="comment">// 0x50</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, <span class="comment">// 0x60</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, <span class="comment">// 0x70</span></div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, <span class="comment">// 0x80</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, <span class="comment">// 0x90</span></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, <span class="comment">// 0xA0</span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, <span class="comment">// 0xB0</span></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, <span class="comment">// 0xC0</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, <span class="comment">// 0xD0</span></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, <span class="comment">// 0xE0</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, <span class="comment">// 0xF0</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> };</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment">// AES inverse S-box (http://en.wikipedia.org/wiki/Rijndael_S-box)</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">static</span> uint8_t <span class="keyword">const</span> sbox_inverse[256] PROGMEM = {</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, <span class="comment">// 0x00</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, <span class="comment">// 0x10</span></div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, <span class="comment">// 0x20</span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, <span class="comment">// 0x30</span></div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, <span class="comment">// 0x40</span></div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, <span class="comment">// 0x50</span></div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, <span class="comment">// 0x60</span></div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, <span class="comment">// 0x70</span></div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, <span class="comment">// 0x80</span></div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, <span class="comment">// 0x90</span></div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, <span class="comment">// 0xA0</span></div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, <span class="comment">// 0xB0</span></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, <span class="comment">// 0xC0</span></div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, <span class="comment">// 0xD0</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, <span class="comment">// 0xE0</span></div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, <span class="comment">// 0xF0</span></div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> };</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
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<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="classAESCommon.html#acf224a392659429bac80dc68c7471b21"> 127</a></span> <a class="code" href="classAESCommon.html#acf224a392659429bac80dc68c7471b21">AESCommon::AESCommon</a>()</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  : rounds(0), schedule(0)</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> {</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> }</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
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<div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="classAESCommon.html#a8f67970c86c23affb0297fc1bb10fad8"> 136</a></span> <a class="code" href="classAESCommon.html#a8f67970c86c23affb0297fc1bb10fad8">AESCommon::~AESCommon</a>()</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> {</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> }</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div>
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<div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="classAESCommon.html#ae26afdcc6d18e8888974acae16df1413"> 144</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classAESCommon.html#ae26afdcc6d18e8888974acae16df1413">AESCommon::blockSize</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">return</span> 16;</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> }</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment">// Constants to correct Galois multiplication for the high bits</span></div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment">// that are shifted out when multiplying by powers of two.</span></div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="keyword">static</span> uint8_t <span class="keyword">const</span> K[8] = {</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  0x00,</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  0x1B,</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  (0x1B << 1),</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  (0x1B << 1) ^ 0x1B,</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  (0x1B << 2),</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  (0x1B << 2) ^ 0x1B,</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  (0x1B << 2) ^ (0x1B << 1),</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  (0x1B << 2) ^ (0x1B << 1) ^ 0x1B</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> };</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment">// Multiply x by 2 in the Galois field, to achieve the effect of the following:</span></div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment">// if (x & 0x80)</span></div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment">// return (x << 1) ^ 0x1B;</span></div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment">// else</span></div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment">// return (x << 1);</span></div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment">// However, we don't want to use runtime conditionals if we can help it</span></div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment">// to avoid leaking timing information from the implementation.</span></div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment">// In this case, multiplication is slightly faster than table lookup on AVR.</span></div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="preprocessor">#define gmul2(x) (t = ((uint16_t)(x)) << 1, \</span></div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="preprocessor"> ((uint8_t)t) ^ (uint8_t)(0x1B * ((uint8_t)(t >> 8))))</span></div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// Multiply x by 4 in the Galois field.</span></div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="preprocessor">#define gmul4(x) (t = ((uint16_t)(x)) << 2, ((uint8_t)t) ^ K[t >> 8])</span></div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment">// Multiply x by 8 in the Galois field.</span></div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="preprocessor">#define gmul8(x) (t = ((uint16_t)(x)) << 3, ((uint8_t)t) ^ K[t >> 8])</span></div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="preprocessor">#define OUT(col, row) output[(col) * 4 + (row)]</span></div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="preprocessor"></span><span class="preprocessor">#define IN(col, row) input[(col) * 4 + (row)]</span></div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="keywordtype">void</span> AESCommon::subBytesAndShiftRows(uint8_t *output, <span class="keyword">const</span> uint8_t *input)</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> {</div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  OUT(0, 0) = pgm_read_byte(sbox + IN(0, 0));</div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  OUT(0, 1) = pgm_read_byte(sbox + IN(1, 1));</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  OUT(0, 2) = pgm_read_byte(sbox + IN(2, 2));</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  OUT(0, 3) = pgm_read_byte(sbox + IN(3, 3));</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  OUT(1, 0) = pgm_read_byte(sbox + IN(1, 0));</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  OUT(1, 1) = pgm_read_byte(sbox + IN(2, 1));</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  OUT(1, 2) = pgm_read_byte(sbox + IN(3, 2));</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  OUT(1, 3) = pgm_read_byte(sbox + IN(0, 3));</div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  OUT(2, 0) = pgm_read_byte(sbox + IN(2, 0));</div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  OUT(2, 1) = pgm_read_byte(sbox + IN(3, 1));</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  OUT(2, 2) = pgm_read_byte(sbox + IN(0, 2));</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  OUT(2, 3) = pgm_read_byte(sbox + IN(1, 3));</div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  OUT(3, 0) = pgm_read_byte(sbox + IN(3, 0));</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  OUT(3, 1) = pgm_read_byte(sbox + IN(0, 1));</div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  OUT(3, 2) = pgm_read_byte(sbox + IN(1, 2));</div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  OUT(3, 3) = pgm_read_byte(sbox + IN(2, 3));</div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> }</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="keywordtype">void</span> AESCommon::inverseShiftRowsAndSubBytes(uint8_t *output, <span class="keyword">const</span> uint8_t *input)</div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> {</div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  OUT(0, 0) = pgm_read_byte(sbox_inverse + IN(0, 0));</div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  OUT(0, 1) = pgm_read_byte(sbox_inverse + IN(3, 1));</div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  OUT(0, 2) = pgm_read_byte(sbox_inverse + IN(2, 2));</div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  OUT(0, 3) = pgm_read_byte(sbox_inverse + IN(1, 3));</div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  OUT(1, 0) = pgm_read_byte(sbox_inverse + IN(1, 0));</div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  OUT(1, 1) = pgm_read_byte(sbox_inverse + IN(0, 1));</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  OUT(1, 2) = pgm_read_byte(sbox_inverse + IN(3, 2));</div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  OUT(1, 3) = pgm_read_byte(sbox_inverse + IN(2, 3));</div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  OUT(2, 0) = pgm_read_byte(sbox_inverse + IN(2, 0));</div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  OUT(2, 1) = pgm_read_byte(sbox_inverse + IN(1, 1));</div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  OUT(2, 2) = pgm_read_byte(sbox_inverse + IN(0, 2));</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  OUT(2, 3) = pgm_read_byte(sbox_inverse + IN(3, 3));</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  OUT(3, 0) = pgm_read_byte(sbox_inverse + IN(3, 0));</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  OUT(3, 1) = pgm_read_byte(sbox_inverse + IN(2, 1));</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  OUT(3, 2) = pgm_read_byte(sbox_inverse + IN(1, 2));</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  OUT(3, 3) = pgm_read_byte(sbox_inverse + IN(0, 3));</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> }</div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="keywordtype">void</span> AESCommon::mixColumn(uint8_t *output, uint8_t *input)</div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> {</div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  uint16_t t; <span class="comment">// Needed by the gmul2 macro.</span></div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  uint8_t a = input[0];</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  uint8_t b = input[1];</div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  uint8_t c = input[2];</div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  uint8_t d = input[3];</div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  uint8_t a2 = gmul2(a);</div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  uint8_t b2 = gmul2(b);</div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  uint8_t c2 = gmul2(c);</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  uint8_t d2 = gmul2(d);</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  output[0] = a2 ^ b2 ^ b ^ c ^ d;</div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  output[1] = a ^ b2 ^ c2 ^ c ^ d;</div>
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<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  output[2] = a ^ b ^ c2 ^ d2 ^ d;</div>
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<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  output[3] = a2 ^ a ^ b ^ c ^ d2;</div>
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<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> }</div>
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<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="keywordtype">void</span> AESCommon::inverseMixColumn(uint8_t *output, <span class="keyword">const</span> uint8_t *input)</div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> {</div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  uint16_t t; <span class="comment">// Needed by the gmul2, gmul4, and gmul8 macros.</span></div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  uint8_t a = input[0];</div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  uint8_t b = input[1];</div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  uint8_t c = input[2];</div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  uint8_t d = input[3];</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  uint8_t a2 = gmul2(a);</div>
|
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  uint8_t b2 = gmul2(b);</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  uint8_t c2 = gmul2(c);</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  uint8_t d2 = gmul2(d);</div>
|
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  uint8_t a4 = gmul4(a);</div>
|
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  uint8_t b4 = gmul4(b);</div>
|
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  uint8_t c4 = gmul4(c);</div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  uint8_t d4 = gmul4(d);</div>
|
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<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  uint8_t a8 = gmul8(a);</div>
|
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  uint8_t b8 = gmul8(b);</div>
|
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  uint8_t c8 = gmul8(c);</div>
|
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  uint8_t d8 = gmul8(d);</div>
|
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  output[0] = a8 ^ a4 ^ a2 ^ b8 ^ b2 ^ b ^ c8 ^ c4 ^ c ^ d8 ^ d;</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  output[1] = a8 ^ a ^ b8 ^ b4 ^ b2 ^ c8 ^ c2 ^ c ^ d8 ^ d4 ^ d;</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  output[2] = a8 ^ a4 ^ a ^ b8 ^ b ^ c8 ^ c4 ^ c2 ^ d8 ^ d2 ^ d;</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  output[3] = a8 ^ a2 ^ a ^ b8 ^ b4 ^ b ^ c8 ^ c ^ d8 ^ d4 ^ d2;</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> }</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div>
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<div class="line"><a name="l00270"></a><span class="lineno"><a class="line" href="classAESCommon.html#a2d95f6159abfcd92b5841f9018e44296"> 270</a></span> <span class="keywordtype">void</span> <a class="code" href="classAESCommon.html#a2d95f6159abfcd92b5841f9018e44296">AESCommon::encryptBlock</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input)</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> {</div>
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<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keyword">const</span> uint8_t *roundKey = schedule;</div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  uint8_t posn;</div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  uint8_t round;</div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  uint8_t state1[16];</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  uint8_t state2[16];</div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> </div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="comment">// Copy the input into the state and XOR with the first round key.</span></div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">for</span> (posn = 0; posn < 16; ++posn)</div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  state1[posn] = input[posn] ^ roundKey[posn];</div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  roundKey += 16;</div>
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<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div>
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">// Perform all rounds except the last.</span></div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">for</span> (round = rounds; round > 1; --round) {</div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  subBytesAndShiftRows(state2, state1);</div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  mixColumn(state1, state2);</div>
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  mixColumn(state1 + 4, state2 + 4);</div>
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  mixColumn(state1 + 8, state2 + 8);</div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  mixColumn(state1 + 12, state2 + 12);</div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">for</span> (posn = 0; posn < 16; ++posn)</div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  state1[posn] ^= roundKey[posn];</div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  roundKey += 16;</div>
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  }</div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="comment">// Perform the final round.</span></div>
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<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  subBytesAndShiftRows(state2, state1);</div>
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<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">for</span> (posn = 0; posn < 16; ++posn)</div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  output[posn] = state2[posn] ^ roundKey[posn];</div>
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> }</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div>
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<div class="line"><a name="l00301"></a><span class="lineno"><a class="line" href="classAESCommon.html#a95a806adf42f975765ff62907efdc639"> 301</a></span> <span class="keywordtype">void</span> <a class="code" href="classAESCommon.html#a95a806adf42f975765ff62907efdc639">AESCommon::decryptBlock</a>(uint8_t *output, <span class="keyword">const</span> uint8_t *input)</div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> {</div>
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keyword">const</span> uint8_t *roundKey = schedule + rounds * 16;</div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  uint8_t round;</div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  uint8_t posn;</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  uint8_t state1[16];</div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  uint8_t state2[16];</div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div>
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<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="comment">// Copy the input into the state and reverse the final round.</span></div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">for</span> (posn = 0; posn < 16; ++posn)</div>
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  state1[posn] = input[posn] ^ roundKey[posn];</div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  inverseShiftRowsAndSubBytes(state2, state1);</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div>
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<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="comment">// Perform all other rounds in reverse.</span></div>
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<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">for</span> (round = rounds; round > 1; --round) {</div>
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  roundKey -= 16;</div>
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<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">for</span> (posn = 0; posn < 16; ++posn)</div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  state2[posn] ^= roundKey[posn];</div>
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<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  inverseMixColumn(state1, state2);</div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  inverseMixColumn(state1 + 4, state2 + 4);</div>
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<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  inverseMixColumn(state1 + 8, state2 + 8);</div>
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<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  inverseMixColumn(state1 + 12, state2 + 12);</div>
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  inverseShiftRowsAndSubBytes(state2, state1);</div>
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  }</div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="comment">// Reverse the initial round and create the output words.</span></div>
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<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  roundKey -= 16;</div>
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<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordflow">for</span> (posn = 0; posn < 16; ++posn)</div>
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<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  output[posn] = state2[posn] ^ roundKey[posn];</div>
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<div class="line"><a name="l00330"></a><span class="lineno"> 330</span> }</div>
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div>
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<div class="line"><a name="l00332"></a><span class="lineno"><a class="line" href="classAESCommon.html#a83e43f7d07e31d90fd7b768a93ecfce6"> 332</a></span> <span class="keywordtype">void</span> <a class="code" href="classAESCommon.html#a83e43f7d07e31d90fd7b768a93ecfce6">AESCommon::clear</a>()</div>
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<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> {</div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  clean(schedule, (rounds + 1) * 16);</div>
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<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> }</div>
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<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div>
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<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="keywordtype">void</span> AESCommon::keyScheduleCore(uint8_t *output, <span class="keyword">const</span> uint8_t *input, uint8_t iteration)</div>
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> {</div>
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<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="comment">// Rcon(i), 2^i in the Rijndael finite field, for i = 0..10.</span></div>
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<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="comment">// http://en.wikipedia.org/wiki/Rijndael_key_schedule</span></div>
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<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keyword">static</span> uint8_t <span class="keyword">const</span> rcon[11] PROGMEM = {</div>
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<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, <span class="comment">// 0x00</span></div>
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<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  0x80, 0x1B, 0x36</div>
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<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  };</div>
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<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  output[0] = pgm_read_byte(sbox + input[1]) ^ pgm_read_byte(rcon + iteration);</div>
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<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  output[1] = pgm_read_byte(sbox + input[2]);</div>
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<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  output[2] = pgm_read_byte(sbox + input[3]);</div>
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<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  output[3] = pgm_read_byte(sbox + input[0]);</div>
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<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> }</div>
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<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div>
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<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="keywordtype">void</span> AESCommon::applySbox(uint8_t *output, <span class="keyword">const</span> uint8_t *input)</div>
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<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> {</div>
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<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  output[0] = pgm_read_byte(sbox + input[0]);</div>
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<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  output[1] = pgm_read_byte(sbox + input[1]);</div>
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<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  output[2] = pgm_read_byte(sbox + input[2]);</div>
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<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  output[3] = pgm_read_byte(sbox + input[3]);</div>
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<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> }</div>
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<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> </div>
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<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="preprocessor">#endif // CRYPTO_AES_DEFAULT</span></div>
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<div class="ttc" id="classAESCommon_html_a95a806adf42f975765ff62907efdc639"><div class="ttname"><a href="classAESCommon.html#a95a806adf42f975765ff62907efdc639">AESCommon::decryptBlock</a></div><div class="ttdeci">void decryptBlock(uint8_t *output, const uint8_t *input)</div><div class="ttdoc">Decrypts a single block using this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="AESCommon_8cpp_source.html#l00301">AESCommon.cpp:301</a></div></div>
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<div class="ttc" id="classAESCommon_html_acf224a392659429bac80dc68c7471b21"><div class="ttname"><a href="classAESCommon.html#acf224a392659429bac80dc68c7471b21">AESCommon::AESCommon</a></div><div class="ttdeci">AESCommon()</div><div class="ttdoc">Constructs an AES block cipher object. </div><div class="ttdef"><b>Definition:</b> <a href="AESCommon_8cpp_source.html#l00127">AESCommon.cpp:127</a></div></div>
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<div class="ttc" id="classAESCommon_html_ae26afdcc6d18e8888974acae16df1413"><div class="ttname"><a href="classAESCommon.html#ae26afdcc6d18e8888974acae16df1413">AESCommon::blockSize</a></div><div class="ttdeci">size_t blockSize() const </div><div class="ttdoc">Size of an AES block in bytes. </div><div class="ttdef"><b>Definition:</b> <a href="AESCommon_8cpp_source.html#l00144">AESCommon.cpp:144</a></div></div>
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<div class="ttc" id="classAESCommon_html_a8f67970c86c23affb0297fc1bb10fad8"><div class="ttname"><a href="classAESCommon.html#a8f67970c86c23affb0297fc1bb10fad8">AESCommon::~AESCommon</a></div><div class="ttdeci">virtual ~AESCommon()</div><div class="ttdoc">Destroys this AES block cipher object after clearing sensitive information. </div><div class="ttdef"><b>Definition:</b> <a href="AESCommon_8cpp_source.html#l00136">AESCommon.cpp:136</a></div></div>
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<div class="ttc" id="classAESCommon_html_a83e43f7d07e31d90fd7b768a93ecfce6"><div class="ttname"><a href="classAESCommon.html#a83e43f7d07e31d90fd7b768a93ecfce6">AESCommon::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">Clears all security-sensitive state from this block cipher. </div><div class="ttdef"><b>Definition:</b> <a href="AESCommon_8cpp_source.html#l00332">AESCommon.cpp:332</a></div></div>
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<div class="ttc" id="classAESCommon_html_a2d95f6159abfcd92b5841f9018e44296"><div class="ttname"><a href="classAESCommon.html#a2d95f6159abfcd92b5841f9018e44296">AESCommon::encryptBlock</a></div><div class="ttdeci">void encryptBlock(uint8_t *output, const uint8_t *input)</div><div class="ttdoc">Encrypts a single block using this cipher. </div><div class="ttdef"><b>Definition:</b> <a href="AESCommon_8cpp_source.html#l00270">AESCommon.cpp:270</a></div></div>
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