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<li class="navelem"><a class="el" href="dir_df9c78dcf3f59a33b12284f95992a64b.html">ripple</a></li><li class="navelem"><a class="el" href="dir_479102fde392347bd126b381f7d9d4f1.html">conditions</a></li><li class="navelem"><a class="el" href="dir_213c30eea5bc8191205baf8de76da05c.html">impl</a></li> </ul>
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<div class="title">PreimageSha256.h</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//------------------------------------------------------------------------------</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> This file is part of rippled: https://github.com/ripple/rippled</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Copyright (c) 2016 Ripple Labs Inc.</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">//==============================================================================</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifndef RIPPLE_CONDITIONS_PREIMAGE_SHA256_H</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#define RIPPLE_CONDITIONS_PREIMAGE_SHA256_H</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 <ripple/basics/Buffer.h></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <ripple/basics/Slice.h></span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <ripple/conditions/Condition.h></span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <ripple/conditions/Fulfillment.h></span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <ripple/conditions/impl/error.h></span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <ripple/protocol/digest.h></span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/memory.html">memory</a>></span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  </div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">namespace </span><a class="code" href="namespaceripple.html">ripple</a> {</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span>cryptoconditions {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  </div>
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<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html"> 34</a></span> <span class="keyword">class </span><a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html">PreimageSha256</a> final : <span class="keyword">public</span> <a class="code" href="structripple_1_1cryptoconditions_1_1Fulfillment.html">Fulfillment</a></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> {</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a62cb7844ba6809e8d2c47178245c993d"> 46</a></span>  <span class="keyword">static</span> constexpr <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a62cb7844ba6809e8d2c47178245c993d">maxPreimageLength</a> = 128;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  </div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">static</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/memory/unique_ptr.html">std::unique_ptr<Fulfillment></a></div>
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<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a38e9b0e19c25715ba4169dcd6b527e16"> 55</a></span>  <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a38e9b0e19c25715ba4169dcd6b527e16">deserialize</a>(<a class="code" href="classripple_1_1Slice.html">Slice</a> s, <a class="codeRef" href="http://en.cppreference.com/w/cpp/error/error_code.html">std::error_code</a>& ec)</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  {</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// Per the RFC, a preimage fulfulliment is defined as</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// follows:</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="comment">//</span></div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// PreimageFulfillment ::= SEQUENCE {</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// preimage OCTET STRING</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// }</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  </div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">using namespace </span>der;</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">auto</span> p = parsePreamble(s, ec);</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (ec)</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  </div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">if</span> (!isPrimitive(p) || !isContextSpecific(p))</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  {</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  ec = <a class="code" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23adc54835966d43efcd050a2e0e0aaaf9f">error::incorrect_encoding</a>;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> {};</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  </div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (p.tag != 0)</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  {</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  ec = <a class="code" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a680460a7b6e0775b40c1af6d93f0af0a">error::unexpected_tag</a>;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> {};</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  }</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  </div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">if</span> (s.<a class="code" href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">size</a>() != p.length)</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  {</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  ec = <a class="code" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a622acecc4fa47f86b8598218361cec31">error::trailing_garbage</a>;</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">return</span> {};</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  }</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (s.<a class="code" href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">size</a>() > <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a62cb7844ba6809e8d2c47178245c993d">maxPreimageLength</a>)</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  ec = <a class="code" href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23ad78ef233aa5ef8cd256a1fe0823e5c94">error::preimage_too_long</a>;</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> {};</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  </div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">auto</span> b = parseOctetString(s, p.<a class="code" href="classripple_1_1Slice.html#ab09b683271821364a5e2a908021b879e">length</a>, ec);</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (ec)</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> {};</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  </div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">return</span> std::make_unique<PreimageSha256>(std::move(b));</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  }</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  </div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a1d8265482964990db39196b535558a29"> 102</a></span>  <a class="code" href="classripple_1_1Buffer.html">Buffer</a> <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a1d8265482964990db39196b535558a29">payload_</a>;</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a33fc8b3aeb76e17a2f1c6c63d7761e22"> 105</a></span>  <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a33fc8b3aeb76e17a2f1c6c63d7761e22">PreimageSha256</a>(<a class="code" href="classripple_1_1Buffer.html">Buffer</a>&& b) noexcept : <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a1d8265482964990db39196b535558a29">payload_</a>(std::move(b))</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  {</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  </div>
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<div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#aff5ba2b2733e820bba7da7882fb036d3"> 109</a></span>  <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#aff5ba2b2733e820bba7da7882fb036d3">PreimageSha256</a>(<a class="code" href="classripple_1_1Slice.html">Slice</a> s) noexcept : <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a1d8265482964990db39196b535558a29">payload_</a>(s)</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  {</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  }</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  </div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="code" href="namespaceripple_1_1cryptoconditions.html#aa3107e15003c13674a275abb96856ccd">Type</a></div>
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<div class="line"><a name="l00114"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#ac16287043405acdbeb79c5c501bb1ff1"> 114</a></span>  <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#ac16287043405acdbeb79c5c501bb1ff1">type</a>()<span class="keyword"> const override</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceripple_1_1cryptoconditions.html#aa3107e15003c13674a275abb96856ccda40536493d814905a0c7e5e89dca8efd1">Type::preimageSha256</a>;</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  </div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="code" href="classripple_1_1Buffer.html">Buffer</a></div>
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<div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a32a6bdb571dd1145d85d88b91a5f682a"> 120</a></span>  <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a32a6bdb571dd1145d85d88b91a5f682a">fingerprint</a>()<span class="keyword"> const override</span></div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="structripple_1_1openssl__sha256__hasher.html">sha256_hasher</a> h;</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  h(<a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a1d8265482964990db39196b535558a29">payload_</a>.<a class="code" href="classripple_1_1Buffer.html#ab6ff733d0e46ea023e9505ae9d4d34b6">data</a>(), <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a1d8265482964990db39196b535558a29">payload_</a>.<a class="code" href="classripple_1_1Buffer.html#a76cd91377f761afdbb2dec0a39e44005">size</a>());</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keyword">auto</span> <span class="keyword">const</span> d = <span class="keyword">static_cast<</span><a class="codeRef" href="http://en.cppreference.com/w/cpp/container/array.html">sha256_hasher::result_type</a><span class="keyword">></span>(h);</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> {d.<a class="codeRef" href="http://en.cppreference.com/w/cpp/container/array/data.html">data</a>(), d.size()};</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  </div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div>
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<div class="line"><a name="l00129"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#ae123cad97af124620811e003c84594b4"> 129</a></span>  <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#ae123cad97af124620811e003c84594b4">cost</a>()<span class="keyword"> const override</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><a class="codeRef" href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a><span class="keyword">></span>(<a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a1d8265482964990db39196b535558a29">payload_</a>.<a class="code" href="classripple_1_1Buffer.html#a76cd91377f761afdbb2dec0a39e44005">size</a>());</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  </div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <a class="code" href="classripple_1_1cryptoconditions_1_1Condition.html">Condition</a></div>
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<div class="line"><a name="l00135"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a87fc55bbedc439c4f10ca9675eee37b5"> 135</a></span>  <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a87fc55bbedc439c4f10ca9675eee37b5">condition</a>()<span class="keyword"> const override</span></div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">return</span> {<a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#ac16287043405acdbeb79c5c501bb1ff1">type</a>(), <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#ae123cad97af124620811e003c84594b4">cost</a>(), <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a32a6bdb571dd1145d85d88b91a5f682a">fingerprint</a>()};</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="l00140"></a><span class="lineno"><a class="line" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a06d9ff9c6ad66a7a53b91c6bd5aa75f2"> 140</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a06d9ff9c6ad66a7a53b91c6bd5aa75f2">validate</a>(<a class="code" href="classripple_1_1Slice.html">Slice</a>)<span class="keyword"> const override</span></div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="keyword"> </span>{</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="comment">// Perhaps counterintuitively, the message isn't</span></div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// relevant.</span></div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> };</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> } <span class="comment">// namespace cryptoconditions</span></div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> } <span class="comment">// namespace ripple</span></div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  </div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="preprocessor">#endif</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="aclassripple_1_1Slice_html_aa6faa586508e0f849d4591d807353825"><div class="ttname"><a href="classripple_1_1Slice.html#aa6faa586508e0f849d4591d807353825">ripple::Slice::size</a></div><div class="ttdeci">std::size_t size() const noexcept</div><div class="ttdoc">Returns the number of bytes in the storage.</div><div class="ttdef"><b>Definition:</b> <a href="Slice_8h_source.html#l00079">Slice.h:79</a></div></div>
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<div class="ttc" id="anamespaceripple_1_1cryptoconditions_html_aa3107e15003c13674a275abb96856ccda40536493d814905a0c7e5e89dca8efd1"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions.html#aa3107e15003c13674a275abb96856ccda40536493d814905a0c7e5e89dca8efd1">ripple::cryptoconditions::Type::preimageSha256</a></div><div class="ttdeci">@ preimageSha256</div></div>
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<div class="ttc" id="astructripple_1_1openssl__sha256__hasher_html"><div class="ttname"><a href="structripple_1_1openssl__sha256__hasher.html">ripple::openssl_sha256_hasher</a></div><div class="ttdoc">SHA-256 digest.</div><div class="ttdef"><b>Definition:</b> <a href="digest_8h_source.html#l00090">digest.h:90</a></div></div>
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<div class="ttc" id="aclassripple_1_1Slice_html"><div class="ttname"><a href="classripple_1_1Slice.html">ripple::Slice</a></div><div class="ttdoc">An immutable linear range of bytes.</div><div class="ttdef"><b>Definition:</b> <a href="Slice_8h_source.html#l00044">Slice.h:44</a></div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html_a06d9ff9c6ad66a7a53b91c6bd5aa75f2"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a06d9ff9c6ad66a7a53b91c6bd5aa75f2">ripple::cryptoconditions::PreimageSha256::validate</a></div><div class="ttdeci">bool validate(Slice) const override</div><div class="ttdoc">Validates a fulfillment.</div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00140">PreimageSha256.h:140</a></div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html">ripple::cryptoconditions::PreimageSha256</a></div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00034">PreimageSha256.h:34</a></div></div>
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<div class="ttc" id="aclassripple_1_1Slice_html_ab09b683271821364a5e2a908021b879e"><div class="ttname"><a href="classripple_1_1Slice.html#ab09b683271821364a5e2a908021b879e">ripple::Slice::length</a></div><div class="ttdeci">std::size_t length() const noexcept</div><div class="ttdef"><b>Definition:</b> <a href="Slice_8h_source.html#l00085">Slice.h:85</a></div></div>
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<div class="ttc" id="aclassripple_1_1Buffer_html"><div class="ttname"><a href="classripple_1_1Buffer.html">ripple::Buffer</a></div><div class="ttdoc">Like std::vector<char> but better.</div><div class="ttdef"><b>Definition:</b> <a href="Buffer_8h_source.html#l00035">Buffer.h:35</a></div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1Condition_html"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1Condition.html">ripple::cryptoconditions::Condition</a></div><div class="ttdef"><b>Definition:</b> <a href="Condition_8h_source.html#l00044">Condition.h:44</a></div></div>
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<div class="ttc" id="anamespaceripple_1_1cryptoconditions_html_ae0bee5541ce10d52809660ad2d100a23adc54835966d43efcd050a2e0e0aaaf9f"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23adc54835966d43efcd050a2e0e0aaaf9f">ripple::cryptoconditions::error::incorrect_encoding</a></div><div class="ttdeci">@ incorrect_encoding</div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html_a32a6bdb571dd1145d85d88b91a5f682a"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a32a6bdb571dd1145d85d88b91a5f682a">ripple::cryptoconditions::PreimageSha256::fingerprint</a></div><div class="ttdeci">Buffer fingerprint() const override</div><div class="ttdoc">Returns the fulfillment's fingerprint:</div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00120">PreimageSha256.h:120</a></div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html_a38e9b0e19c25715ba4169dcd6b527e16"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a38e9b0e19c25715ba4169dcd6b527e16">ripple::cryptoconditions::PreimageSha256::deserialize</a></div><div class="ttdeci">static std::unique_ptr< Fulfillment > deserialize(Slice s, std::error_code &ec)</div><div class="ttdoc">Parse the payload for a PreimageSha256 condition.</div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00055">PreimageSha256.h:55</a></div></div>
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<div class="ttc" id="aerror_code_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/error/error_code.html">std::error_code</a></div><div class="ttdoc">STL class.</div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html_ae123cad97af124620811e003c84594b4"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#ae123cad97af124620811e003c84594b4">ripple::cryptoconditions::PreimageSha256::cost</a></div><div class="ttdeci">std::uint32_t cost() const override</div><div class="ttdoc">Calculates the cost associated with this fulfillment.</div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00129">PreimageSha256.h:129</a></div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html_a1d8265482964990db39196b535558a29"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a1d8265482964990db39196b535558a29">ripple::cryptoconditions::PreimageSha256::payload_</a></div><div class="ttdeci">Buffer payload_</div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00102">PreimageSha256.h:102</a></div></div>
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<div class="ttc" id="aarray_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a></div><div class="ttdoc">STL class.</div></div>
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<div class="ttc" id="anamespaceripple_1_1cryptoconditions_html_ae0bee5541ce10d52809660ad2d100a23a680460a7b6e0775b40c1af6d93f0af0a"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a680460a7b6e0775b40c1af6d93f0af0a">ripple::cryptoconditions::error::unexpected_tag</a></div><div class="ttdeci">@ unexpected_tag</div></div>
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<div class="ttc" id="aclassripple_1_1Buffer_html_a76cd91377f761afdbb2dec0a39e44005"><div class="ttname"><a href="classripple_1_1Buffer.html#a76cd91377f761afdbb2dec0a39e44005">ripple::Buffer::size</a></div><div class="ttdeci">std::size_t size() const noexcept</div><div class="ttdoc">Returns the number of bytes in the buffer.</div><div class="ttdef"><b>Definition:</b> <a href="Buffer_8h_source.html#l00126">Buffer.h:126</a></div></div>
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<div class="ttc" id="aclassripple_1_1Buffer_html_ab6ff733d0e46ea023e9505ae9d4d34b6"><div class="ttname"><a href="classripple_1_1Buffer.html#ab6ff733d0e46ea023e9505ae9d4d34b6">ripple::Buffer::data</a></div><div class="ttdeci">std::uint8_t const * data() const noexcept</div><div class="ttdoc">Return a pointer to beginning of the storage.</div><div class="ttdef"><b>Definition:</b> <a href="Buffer_8h_source.html#l00150">Buffer.h:150</a></div></div>
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<div class="ttc" id="ainteger_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/integer.html">std::uint32_t</a></div></div>
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<div class="ttc" id="amemory_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/memory.html">memory</a></div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html_a87fc55bbedc439c4f10ca9675eee37b5"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a87fc55bbedc439c4f10ca9675eee37b5">ripple::cryptoconditions::PreimageSha256::condition</a></div><div class="ttdeci">Condition condition() const override</div><div class="ttdoc">Returns the condition associated with the given fulfillment.</div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00135">PreimageSha256.h:135</a></div></div>
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<div class="ttc" id="anamespaceripple_1_1cryptoconditions_html_aa3107e15003c13674a275abb96856ccd"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions.html#aa3107e15003c13674a275abb96856ccd">ripple::cryptoconditions::Type</a></div><div class="ttdeci">Type</div><div class="ttdef"><b>Definition:</b> <a href="Condition_8h_source.html#l00036">Condition.h:36</a></div></div>
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<div class="ttc" id="anamespaceripple_1_1cryptoconditions_html_ae0bee5541ce10d52809660ad2d100a23ad78ef233aa5ef8cd256a1fe0823e5c94"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23ad78ef233aa5ef8cd256a1fe0823e5c94">ripple::cryptoconditions::error::preimage_too_long</a></div><div class="ttdeci">@ preimage_too_long</div></div>
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<div class="ttc" id="anamespaceripple_html"><div class="ttname"><a href="namespaceripple.html">ripple</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition:</b> <a href="RCLCensorshipDetector_8h_source.html#l00029">RCLCensorshipDetector.h:29</a></div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html_a33fc8b3aeb76e17a2f1c6c63d7761e22"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a33fc8b3aeb76e17a2f1c6c63d7761e22">ripple::cryptoconditions::PreimageSha256::PreimageSha256</a></div><div class="ttdeci">PreimageSha256(Buffer &&b) noexcept</div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00105">PreimageSha256.h:105</a></div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html_ac16287043405acdbeb79c5c501bb1ff1"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#ac16287043405acdbeb79c5c501bb1ff1">ripple::cryptoconditions::PreimageSha256::type</a></div><div class="ttdeci">Type type() const override</div><div class="ttdoc">Returns the type of this condition.</div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00114">PreimageSha256.h:114</a></div></div>
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<div class="ttc" id="asize_t_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a></div></div>
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<div class="ttc" id="astructripple_1_1cryptoconditions_1_1Fulfillment_html"><div class="ttname"><a href="structripple_1_1cryptoconditions_1_1Fulfillment.html">ripple::cryptoconditions::Fulfillment</a></div><div class="ttdef"><b>Definition:</b> <a href="Fulfillment_8h_source.html#l00032">Fulfillment.h:32</a></div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html_aff5ba2b2733e820bba7da7882fb036d3"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#aff5ba2b2733e820bba7da7882fb036d3">ripple::cryptoconditions::PreimageSha256::PreimageSha256</a></div><div class="ttdeci">PreimageSha256(Slice s) noexcept</div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00109">PreimageSha256.h:109</a></div></div>
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<div class="ttc" id="aunique_ptr_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/memory/unique_ptr.html">std::unique_ptr</a></div><div class="ttdoc">STL class.</div></div>
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<div class="ttc" id="anamespaceripple_1_1cryptoconditions_html_ae0bee5541ce10d52809660ad2d100a23a622acecc4fa47f86b8598218361cec31"><div class="ttname"><a href="namespaceripple_1_1cryptoconditions.html#ae0bee5541ce10d52809660ad2d100a23a622acecc4fa47f86b8598218361cec31">ripple::cryptoconditions::error::trailing_garbage</a></div><div class="ttdeci">@ trailing_garbage</div></div>
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<div class="ttc" id="adata_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/array/data.html">std::array::data</a></div><div class="ttdeci">T data(T... args)</div></div>
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<div class="ttc" id="aclassripple_1_1cryptoconditions_1_1PreimageSha256_html_a62cb7844ba6809e8d2c47178245c993d"><div class="ttname"><a href="classripple_1_1cryptoconditions_1_1PreimageSha256.html#a62cb7844ba6809e8d2c47178245c993d">ripple::cryptoconditions::PreimageSha256::maxPreimageLength</a></div><div class="ttdeci">static constexpr std::size_t maxPreimageLength</div><div class="ttdoc">The maximum allowed length of a preimage.</div><div class="ttdef"><b>Definition:</b> <a href="PreimageSha256_8h_source.html#l00046">PreimageSha256.h:46</a></div></div>
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