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<li class="navelem"><a class="el" href="dir_90ffdbabf412cfdffe6b2193e0ce938a.html">libxrpl</a></li><li class="navelem"><a class="el" href="dir_4cb643486f27a568a0d40f174f670f35.html">protocol</a></li> </ul>
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<div class="headertitle"><div class="title">AccountID.cpp</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include &lt;xrpl/basics/hardened_hash.h&gt;</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include &lt;xrpl/basics/spinlock.h&gt;</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include &lt;xrpl/beast/utility/Zero.h&gt;</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;xrpl/beast/utility/instrumentation.h&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include &lt;xrpl/protocol/AccountID.h&gt;</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include &lt;xrpl/protocol/PublicKey.h&gt;</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include &lt;xrpl/protocol/digest.h&gt;</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include &lt;xrpl/protocol/tokens.h&gt;</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/atomic.html">atomic</a>&gt;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cstdint.html">cstdint</a>&gt;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cstring.html">cstring</a>&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/memory.html">memory</a>&gt;</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/mutex.html">mutex</a>&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/optional.html">optional</a>&gt;</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/string.html">string</a>&gt;</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/vector.html">vector</a>&gt;</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacexrpl.html">xrpl</a> {</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="keyword">namespace </span>detail {</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="foldopen" id="foldopen00024" data-start="{" data-end="};">
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"><a class="line" href="classxrpl_1_1detail_1_1AccountIdCache.html"> 24</a></span><span class="keyword">class </span><a class="code hl_class" href="classxrpl_1_1detail_1_1AccountIdCache.html">AccountIdCache</a></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span>{</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="keyword">private</span>:</div>
<div class="foldopen" id="foldopen00027" data-start="{" data-end="};">
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"><a class="line" href="structxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID.html"> 27</a></span> <span class="keyword">struct </span><a class="code hl_struct" href="structxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID.html">CachedAccountID</a></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> {</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"><a class="line" href="structxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID.html#a2e08acda6fa212a21ee97aaf5f70d5ce"> 29</a></span> <a class="code hl_class" href="classxrpl_1_1base__uint.html">AccountID</a> <a class="code hl_variable" href="structxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID.html#a2e08acda6fa212a21ee97aaf5f70d5ce">id</a>;</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"><a class="line" href="structxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID.html#ab27964629de2bcd677c5111e8d06d9a6"> 30</a></span> <span class="keywordtype">char</span> <a class="code hl_variable" href="structxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID.html#ab27964629de2bcd677c5111e8d06d9a6">encoding</a>[40] = {0};</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> };</div>
</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="comment">// The actual cache</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436"> 34</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;CachedAccountID&gt;</a> <a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436">cache_</a>;</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// We use a hash function designed to resist algorithmic complexity attacks</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"><a class="line" href="classxrpl_1_1detail_1_1AccountIdCache.html#a3bb0981cb5cd276bd90bf54551b14848"> 37</a></span> <a class="code hl_class" href="classxrpl_1_1hardened__hash.html">hardened_hash&lt;&gt;</a> <a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#a3bb0981cb5cd276bd90bf54551b14848">hasher_</a>;</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// 64 spinlocks, packed into a single 64-bit value</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="classxrpl_1_1detail_1_1AccountIdCache.html#af313ee28131e6dce372f635c2e719e75"> 40</a></span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/atomic/atomic.html">std::atomic&lt;std::uint64_t&gt;</a> <a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#af313ee28131e6dce372f635c2e719e75">locks_</a> = 0;</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="keyword">public</span>:</div>
<div class="foldopen" id="foldopen00043" data-start="{" data-end="}">
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="classxrpl_1_1detail_1_1AccountIdCache.html#a792f22a665a72a77c47492f69699908c"> 43</a></span> <a class="code hl_function" href="classxrpl_1_1detail_1_1AccountIdCache.html#a792f22a665a72a77c47492f69699908c">AccountIdCache</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> count) : <a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436">cache_</a>(count)</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> {</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="comment">// This is non-binding, but we try to avoid wasting memory that</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="comment">// is caused by overallocation.</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436">cache_</a>.shrink_to_fit();</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> }</div>
</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div>
<div class="foldopen" id="foldopen00051" data-start="{" data-end="}">
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"><a class="line" href="classxrpl_1_1detail_1_1AccountIdCache.html#a67643f6644ce87aecdebbd13f7ad4b6d"> 51</a></span> <a class="code hl_function" href="classxrpl_1_1detail_1_1AccountIdCache.html#a67643f6644ce87aecdebbd13f7ad4b6d">toBase58</a>(<a class="code hl_class" href="classxrpl_1_1base__uint.html">AccountID</a> <span class="keyword">const</span>&amp; <span class="keywordtype">id</span>)</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> {</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">auto</span> <span class="keyword">const</span> index = <a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#a3bb0981cb5cd276bd90bf54551b14848">hasher_</a>(<span class="keywordtype">id</span>) % <a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436">cache_</a>.size();</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <a class="code hl_class" href="classxrpl_1_1packed__spinlock.html">packed_spinlock</a> sl(<a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#af313ee28131e6dce372f635c2e719e75">locks_</a>, index % 64);</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> {</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(sl);</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="comment">// The check against the first character of the encoding ensures</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="comment">// that we don&#39;t mishandle the case of the all-zero account:</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436">cache_</a>[index].encoding[0] != 0 &amp;&amp; <a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436">cache_</a>[index].<span class="keywordtype">id</span> == <span class="keywordtype">id</span>)</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436">cache_</a>[index].encoding;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> }</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">auto</span> ret = <a class="code hl_function" href="namespacexrpl.html#adb9e2d0295976aebd30bc1c7f4832442">encodeBase58Token</a>(<a class="code hl_enumvalue" href="namespacexrpl.html#ab0ad02fb9cdef90852b93f1b57aacdc1aba430b63631349ab773285535e878405">TokenType::AccountID</a>, <span class="keywordtype">id</span>.data(), <span class="keywordtype">id</span>.size());</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> XRPL_ASSERT(ret.size() &lt;= 38, <span class="stringliteral">&quot;xrpl::detail::AccountIdCache : maximum result size&quot;</span>);</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> {</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/thread/lock_guard.html">std::lock_guard</a> lock(sl);</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436">cache_</a>[index].id = id;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/string/byte/strcpy.html">std::strcpy</a>(<a class="code hl_variable" href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436">cache_</a>[index].encoding, ret.c_str());</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> }</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> }</div>
</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span>};</div>
</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span>} <span class="comment">// namespace detail</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"><a class="line" href="namespacexrpl.html#a3f1e9d92d8b5a6e5fdfe72ee1018e989"> 82</a></span><span class="keyword">static</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/unique_ptr.html">std::unique_ptr&lt;detail::AccountIdCache&gt;</a> <a class="code hl_variable" href="namespacexrpl.html#a3f1e9d92d8b5a6e5fdfe72ee1018e989">accountIdCache</a>;</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> </div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00085" data-start="{" data-end="}">
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"><a class="line" href="namespacexrpl.html#aad4767dee4c115fb0d6d198f8ab56ae5"> 85</a></span><a class="code hl_function" href="namespacexrpl.html#aad4767dee4c115fb0d6d198f8ab56ae5">initAccountIdCache</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/types/size_t.html">std::size_t</a> count)</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span>{</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="namespacexrpl.html#a3f1e9d92d8b5a6e5fdfe72ee1018e989">accountIdCache</a> &amp;&amp; count != 0)</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <a class="code hl_variable" href="namespacexrpl.html#a3f1e9d92d8b5a6e5fdfe72ee1018e989">accountIdCache</a> = <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::make_unique&lt;detail::AccountIdCache&gt;</a>(count);</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span>}</div>
</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div>
<div class="foldopen" id="foldopen00092" data-start="{" data-end="}">
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"><a class="line" href="namespacexrpl.html#a4e17e8237bc800415c303501c667baeb"> 92</a></span><a class="code hl_function" href="namespacexrpl.html#a4e17e8237bc800415c303501c667baeb">toBase58</a>(<a class="code hl_class" href="classxrpl_1_1base__uint.html">AccountID</a> <span class="keyword">const</span>&amp; v)</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span>{</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="namespacexrpl.html#a3f1e9d92d8b5a6e5fdfe72ee1018e989">accountIdCache</a>)</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="namespacexrpl.html#a3f1e9d92d8b5a6e5fdfe72ee1018e989">accountIdCache</a>-&gt;toBase58(v);</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespacexrpl.html#adb9e2d0295976aebd30bc1c7f4832442">encodeBase58Token</a>(<a class="code hl_enumvalue" href="namespacexrpl.html#ab0ad02fb9cdef90852b93f1b57aacdc1aba430b63631349ab773285535e878405">TokenType::AccountID</a>, v.<a class="code hl_function" href="classxrpl_1_1base__uint.html#abafa79f01042304ef1af73e625d4f515">data</a>(), v.<a class="code hl_function" href="classxrpl_1_1base__uint.html#af75a5db52d164b43693830e9df8585a8">size</a>());</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span>}</div>
</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span><span class="keyword">template</span> &lt;&gt;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;AccountID&gt;</a></div>
<div class="foldopen" id="foldopen00102" data-start="{" data-end="}">
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"><a class="line" href="namespacexrpl.html#a2d92828416e0caeb8fa2755a55199a2d"> 102</a></span><a class="code hl_function" href="namespacexrpl.html#a2d92828416e0caeb8fa2755a55199a2d">parseBase58</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span>&amp; s)</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span>{</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keyword">auto</span> <span class="keyword">const</span> result = <a class="code hl_function" href="namespacexrpl.html#aec03e7a86f99a0504b1c70d3c3cb6174">decodeBase58Token</a>(s, <a class="code hl_enumvalue" href="namespacexrpl.html#ab0ad02fb9cdef90852b93f1b57aacdc1aba430b63631349ab773285535e878405">TokenType::AccountID</a>);</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordflow">if</span> (result.size() != <a class="code hl_variable" href="classxrpl_1_1base__uint.html#ae3e477069233fe118d7fcda37a13ad34">AccountID::bytes</a>)</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">return</span> <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::nullopt</a>;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">return</span> <a class="code hl_class" href="classxrpl_1_1base__uint.html">AccountID</a>{result};</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span>}</div>
</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span><span class="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span><span class="comment">/*</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="comment"> Calculation of the Account ID</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span><span class="comment"></span> </div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span><span class="comment"> The AccountID is a 160-bit identifier that uniquely</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span><span class="comment"> distinguishes an account. The account may or may not</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span><span class="comment"> exist in the ledger. Even for accounts that are not in</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span><span class="comment"> the ledger, cryptographic operations may be performed</span></div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span><span class="comment"> which affect the ledger. For example, designating an</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span><span class="comment"> account not in the ledger as a regular key for an</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span><span class="comment"> account that is in the ledger.</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span><span class="comment"></span> </div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span><span class="comment"> Why did we use half of SHA512 for most things but then</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span><span class="comment"> SHA256 followed by RIPEMD160 for account IDs? Why didn&#39;t</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span><span class="comment"> we do SHA512 half then RIPEMD160? Or even SHA512 then RIPEMD160?</span></div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span><span class="comment"> For that matter why RIPEMD160 at all why not just SHA512 and keep</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span><span class="comment"> only 160 bits?</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span><span class="comment"></span> </div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span><span class="comment"> Answer (David Schwartz):</span></div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span><span class="comment"></span> </div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span><span class="comment"> The short answer is that we kept Bitcoin&#39;s behavior.</span></div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span><span class="comment"> The longer answer was that:</span></div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span><span class="comment"> 1) Using a single hash could leave ripple</span></div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span><span class="comment"> vulnerable to length extension attacks.</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span><span class="comment"> 2) Only RIPEMD160 is generally considered safe at 160 bits.</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><span class="comment"></span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span><span class="comment"> Any of those schemes would have been acceptable. However,</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span><span class="comment"> the one chosen avoids any need to defend the scheme chosen.</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span><span class="comment"> (Against any criticism other than unnecessary complexity.)</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span><span class="comment"></span> </div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span><span class="comment"> &quot;The historical reason was that in the very early days,</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span><span class="comment"> we wanted to give people as few ways to argue that we were</span></div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span><span class="comment"> less secure than Bitcoin. So where there was no good reason</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span><span class="comment"> to change something, it was not changed.&quot;</span></div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span><span class="comment">*/</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span><a class="code hl_typedef" href="namespacexrpl.html#a645fcf7e35dc370816f6dd8e2fd7f146">AccountID</a></div>
<div class="foldopen" id="foldopen00146" data-start="{" data-end="}">
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"><a class="line" href="namespacexrpl.html#ab093a644b3a32b6d19551d5d5eec17cf"> 146</a></span><a class="code hl_function" href="namespacexrpl.html#ab093a644b3a32b6d19551d5d5eec17cf">calcAccountID</a>(<a class="code hl_class" href="classxrpl_1_1PublicKey.html">PublicKey</a> <span class="keyword">const</span>&amp; pk)</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span>{</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keyword">static_assert</span>(<a class="code hl_variable" href="classxrpl_1_1base__uint.html#ae3e477069233fe118d7fcda37a13ad34">AccountID::bytes</a> == <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structxrpl_1_1ripesha__hasher.html#ae05e854b34e622a46b891772c2eadfe9">ripesha_hasher::result_type</a>));</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <a class="code hl_struct" href="structxrpl_1_1ripesha__hasher.html">ripesha_hasher</a> rsh;</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> rsh(pk.<a class="code hl_function" href="classxrpl_1_1PublicKey.html#a54b802ef3ad9a99bcb95abdeaec36f33">data</a>(), pk.<a class="code hl_function" href="classxrpl_1_1PublicKey.html#a5d9f615e7b56e4de26c1891a891c4a7a">size</a>());</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">return</span> <a class="code hl_class" href="classxrpl_1_1base__uint.html">AccountID</a>{<span class="keyword">static_cast&lt;</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/array.html">ripesha_hasher::result_type</a><span class="keyword">&gt;</span>(rsh)};</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span>}</div>
</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> </div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span><a class="code hl_typedef" href="namespacexrpl.html#a645fcf7e35dc370816f6dd8e2fd7f146">AccountID</a> <span class="keyword">const</span>&amp;</div>
<div class="foldopen" id="foldopen00156" data-start="{" data-end="}">
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"><a class="line" href="namespacexrpl.html#ad672692958ebdff428b2af0a5d1c4b83"> 156</a></span><a class="code hl_function" href="namespacexrpl.html#ad672692958ebdff428b2af0a5d1c4b83">xrpAccount</a>()</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span>{</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">static</span> <a class="code hl_class" href="classxrpl_1_1base__uint.html">AccountID</a> <span class="keyword">const</span> account(beast::zero);</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keywordflow">return</span> account;</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span>}</div>
</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span><a class="code hl_typedef" href="namespacexrpl.html#a645fcf7e35dc370816f6dd8e2fd7f146">AccountID</a> <span class="keyword">const</span>&amp;</div>
<div class="foldopen" id="foldopen00163" data-start="{" data-end="}">
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"><a class="line" href="namespacexrpl.html#ac01589c73df9fa8f86ad09d3a73a6d0c"> 163</a></span><a class="code hl_function" href="namespacexrpl.html#ac01589c73df9fa8f86ad09d3a73a6d0c">noAccount</a>()</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span>{</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keyword">static</span> <a class="code hl_class" href="classxrpl_1_1base__uint.html">AccountID</a> <span class="keyword">const</span> account(1);</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keywordflow">return</span> account;</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span>}</div>
</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span><span class="keywordtype">bool</span></div>
<div class="foldopen" id="foldopen00170" data-start="{" data-end="}">
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"><a class="line" href="namespacexrpl.html#abcced35a7378729dc09e4717dd475939"> 170</a></span><a class="code hl_function" href="namespacexrpl.html#abcced35a7378729dc09e4717dd475939">to_issuer</a>(<a class="code hl_class" href="classxrpl_1_1base__uint.html">AccountID</a>&amp; issuer, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span>&amp; s)</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span>{</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordflow">if</span> (issuer.<a class="code hl_function" href="classxrpl_1_1base__uint.html#a341fd439f9a09990fd34c6005d87f2ea">parseHex</a>(s))</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="keyword">auto</span> <span class="keyword">const</span> account = parseBase58&lt;AccountID&gt;(s);</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordflow">if</span> (!account)</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> issuer = *account;</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span>}</div>
</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> </div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span>} <span class="comment">// namespace xrpl</span></div>
<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>
<div class="ttc" id="aatomic_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/atomic.html">atomic</a></div></div>
<div class="ttc" id="abasic_string_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div></div>
<div class="ttc" id="aclassxrpl_1_1PublicKey_html"><div class="ttname"><a href="classxrpl_1_1PublicKey.html">xrpl::PublicKey</a></div><div class="ttdoc">A public key.</div><div class="ttdef"><b>Definition</b> <a href="PublicKey_8h_source.html#l00042">PublicKey.h:43</a></div></div>
<div class="ttc" id="aclassxrpl_1_1PublicKey_html_a54b802ef3ad9a99bcb95abdeaec36f33"><div class="ttname"><a href="classxrpl_1_1PublicKey.html#a54b802ef3ad9a99bcb95abdeaec36f33">xrpl::PublicKey::data</a></div><div class="ttdeci">std::uint8_t const * data() const noexcept</div><div class="ttdef"><b>Definition</b> <a href="PublicKey_8h_source.html#l00068">PublicKey.h:68</a></div></div>
<div class="ttc" id="aclassxrpl_1_1PublicKey_html_a5d9f615e7b56e4de26c1891a891c4a7a"><div class="ttname"><a href="classxrpl_1_1PublicKey.html#a5d9f615e7b56e4de26c1891a891c4a7a">xrpl::PublicKey::size</a></div><div class="ttdeci">std::size_t size() const noexcept</div><div class="ttdef"><b>Definition</b> <a href="PublicKey_8h_source.html#l00074">PublicKey.h:74</a></div></div>
<div class="ttc" id="aclassxrpl_1_1base__uint_html"><div class="ttname"><a href="classxrpl_1_1base__uint.html">xrpl::base_uint&lt; 160, detail::AccountIDTag &gt;</a></div></div>
<div class="ttc" id="aclassxrpl_1_1base__uint_html_a341fd439f9a09990fd34c6005d87f2ea"><div class="ttname"><a href="classxrpl_1_1base__uint.html#a341fd439f9a09990fd34c6005d87f2ea">xrpl::base_uint::parseHex</a></div><div class="ttdeci">constexpr bool parseHex(std::string_view sv)</div><div class="ttdoc">Parse a hex string into a base_uint.</div><div class="ttdef"><b>Definition</b> <a href="base__uint_8h_source.html#l00472">base_uint.h:472</a></div></div>
<div class="ttc" id="aclassxrpl_1_1base__uint_html_abafa79f01042304ef1af73e625d4f515"><div class="ttname"><a href="classxrpl_1_1base__uint.html#abafa79f01042304ef1af73e625d4f515">xrpl::base_uint::data</a></div><div class="ttdeci">pointer data()</div><div class="ttdef"><b>Definition</b> <a href="base__uint_8h_source.html#l00102">base_uint.h:102</a></div></div>
<div class="ttc" id="aclassxrpl_1_1base__uint_html_ae3e477069233fe118d7fcda37a13ad34"><div class="ttname"><a href="classxrpl_1_1base__uint.html#ae3e477069233fe118d7fcda37a13ad34">xrpl::base_uint&lt; 160, detail::AccountIDTag &gt;::bytes</a></div><div class="ttdeci">static std::size_t constexpr bytes</div><div class="ttdef"><b>Definition</b> <a href="base__uint_8h_source.html#l00085">base_uint.h:85</a></div></div>
<div class="ttc" id="aclassxrpl_1_1base__uint_html_af75a5db52d164b43693830e9df8585a8"><div class="ttname"><a href="classxrpl_1_1base__uint.html#af75a5db52d164b43693830e9df8585a8">xrpl::base_uint::size</a></div><div class="ttdeci">static constexpr std::size_t size()</div><div class="ttdef"><b>Definition</b> <a href="base__uint_8h_source.html#l00495">base_uint.h:495</a></div></div>
<div class="ttc" id="aclassxrpl_1_1detail_1_1AccountIdCache_html"><div class="ttname"><a href="classxrpl_1_1detail_1_1AccountIdCache.html">xrpl::detail::AccountIdCache</a></div><div class="ttdoc">Caches the base58 representations of AccountIDs.</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00024">AccountID.cpp:25</a></div></div>
<div class="ttc" id="aclassxrpl_1_1detail_1_1AccountIdCache_html_a3bb0981cb5cd276bd90bf54551b14848"><div class="ttname"><a href="classxrpl_1_1detail_1_1AccountIdCache.html#a3bb0981cb5cd276bd90bf54551b14848">xrpl::detail::AccountIdCache::hasher_</a></div><div class="ttdeci">hardened_hash hasher_</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00037">AccountID.cpp:37</a></div></div>
<div class="ttc" id="aclassxrpl_1_1detail_1_1AccountIdCache_html_a67643f6644ce87aecdebbd13f7ad4b6d"><div class="ttname"><a href="classxrpl_1_1detail_1_1AccountIdCache.html#a67643f6644ce87aecdebbd13f7ad4b6d">xrpl::detail::AccountIdCache::toBase58</a></div><div class="ttdeci">std::string toBase58(AccountID const &amp;id)</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00051">AccountID.cpp:51</a></div></div>
<div class="ttc" id="aclassxrpl_1_1detail_1_1AccountIdCache_html_a792f22a665a72a77c47492f69699908c"><div class="ttname"><a href="classxrpl_1_1detail_1_1AccountIdCache.html#a792f22a665a72a77c47492f69699908c">xrpl::detail::AccountIdCache::AccountIdCache</a></div><div class="ttdeci">AccountIdCache(std::size_t count)</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00043">AccountID.cpp:43</a></div></div>
<div class="ttc" id="aclassxrpl_1_1detail_1_1AccountIdCache_html_ae2d6f3048fa4c8d5c88432d31ab6d436"><div class="ttname"><a href="classxrpl_1_1detail_1_1AccountIdCache.html#ae2d6f3048fa4c8d5c88432d31ab6d436">xrpl::detail::AccountIdCache::cache_</a></div><div class="ttdeci">std::vector&lt; CachedAccountID &gt; cache_</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00034">AccountID.cpp:34</a></div></div>
<div class="ttc" id="aclassxrpl_1_1detail_1_1AccountIdCache_html_af313ee28131e6dce372f635c2e719e75"><div class="ttname"><a href="classxrpl_1_1detail_1_1AccountIdCache.html#af313ee28131e6dce372f635c2e719e75">xrpl::detail::AccountIdCache::locks_</a></div><div class="ttdeci">std::atomic&lt; std::uint64_t &gt; locks_</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00040">AccountID.cpp:40</a></div></div>
<div class="ttc" id="aclassxrpl_1_1hardened__hash_html"><div class="ttname"><a href="classxrpl_1_1hardened__hash.html">xrpl::hardened_hash</a></div><div class="ttdoc">Seed functor once per construction.</div><div class="ttdef"><b>Definition</b> <a href="hardened__hash_8h_source.html#l00073">hardened_hash.h:74</a></div></div>
<div class="ttc" id="aclassxrpl_1_1packed__spinlock_html"><div class="ttname"><a href="classxrpl_1_1packed__spinlock.html">xrpl::packed_spinlock</a></div><div class="ttdoc">Classes to handle arrays of spinlocks packed into a single atomic integer:</div><div class="ttdef"><b>Definition</b> <a href="spinlock_8h_source.html#l00075">spinlock.h:76</a></div></div>
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<div class="ttc" id="anamespacexrpl_html"><div class="ttname"><a href="namespacexrpl.html">xrpl</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="algorithm_8h_source.html#l00006">algorithm.h:6</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a2d92828416e0caeb8fa2755a55199a2d"><div class="ttname"><a href="namespacexrpl.html#a2d92828416e0caeb8fa2755a55199a2d">xrpl::parseBase58</a></div><div class="ttdeci">std::optional&lt; AccountID &gt; parseBase58(std::string const &amp;s)</div><div class="ttdoc">Parse AccountID from checked, base58 string.</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00102">AccountID.cpp:102</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a3f1e9d92d8b5a6e5fdfe72ee1018e989"><div class="ttname"><a href="namespacexrpl.html#a3f1e9d92d8b5a6e5fdfe72ee1018e989">xrpl::accountIdCache</a></div><div class="ttdeci">static std::unique_ptr&lt; detail::AccountIdCache &gt; accountIdCache</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00082">AccountID.cpp:82</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a4e17e8237bc800415c303501c667baeb"><div class="ttname"><a href="namespacexrpl.html#a4e17e8237bc800415c303501c667baeb">xrpl::toBase58</a></div><div class="ttdeci">std::string toBase58(AccountID const &amp;v)</div><div class="ttdoc">Convert AccountID to base58 checked string.</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00092">AccountID.cpp:92</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a645fcf7e35dc370816f6dd8e2fd7f146"><div class="ttname"><a href="namespacexrpl.html#a645fcf7e35dc370816f6dd8e2fd7f146">xrpl::AccountID</a></div><div class="ttdeci">base_uint&lt; 160, detail::AccountIDTag &gt; AccountID</div><div class="ttdoc">A 160-bit unsigned that uniquely identifies an account.</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8h_source.html#l00029">AccountID.h:29</a></div></div>
<div class="ttc" id="anamespacexrpl_html_aad4767dee4c115fb0d6d198f8ab56ae5"><div class="ttname"><a href="namespacexrpl.html#aad4767dee4c115fb0d6d198f8ab56ae5">xrpl::initAccountIdCache</a></div><div class="ttdeci">void initAccountIdCache(std::size_t count)</div><div class="ttdoc">Initialize the global cache used to map AccountID to base58 conversions.</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00085">AccountID.cpp:85</a></div></div>
<div class="ttc" id="anamespacexrpl_html_ab093a644b3a32b6d19551d5d5eec17cf"><div class="ttname"><a href="namespacexrpl.html#ab093a644b3a32b6d19551d5d5eec17cf">xrpl::calcAccountID</a></div><div class="ttdeci">AccountID calcAccountID(PublicKey const &amp;pk)</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00146">AccountID.cpp:146</a></div></div>
<div class="ttc" id="anamespacexrpl_html_ab0ad02fb9cdef90852b93f1b57aacdc1aba430b63631349ab773285535e878405"><div class="ttname"><a href="namespacexrpl.html#ab0ad02fb9cdef90852b93f1b57aacdc1aba430b63631349ab773285535e878405">xrpl::TokenType::AccountID</a></div><div class="ttdeci">@ AccountID</div></div>
<div class="ttc" id="anamespacexrpl_html_abcced35a7378729dc09e4717dd475939"><div class="ttname"><a href="namespacexrpl.html#abcced35a7378729dc09e4717dd475939">xrpl::to_issuer</a></div><div class="ttdeci">bool to_issuer(AccountID &amp;, std::string const &amp;)</div><div class="ttdoc">Convert hex or base58 string to AccountID.</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00170">AccountID.cpp:170</a></div></div>
<div class="ttc" id="anamespacexrpl_html_ac01589c73df9fa8f86ad09d3a73a6d0c"><div class="ttname"><a href="namespacexrpl.html#ac01589c73df9fa8f86ad09d3a73a6d0c">xrpl::noAccount</a></div><div class="ttdeci">AccountID const &amp; noAccount()</div><div class="ttdoc">A placeholder for empty accounts.</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00163">AccountID.cpp:163</a></div></div>
<div class="ttc" id="anamespacexrpl_html_ad672692958ebdff428b2af0a5d1c4b83"><div class="ttname"><a href="namespacexrpl.html#ad672692958ebdff428b2af0a5d1c4b83">xrpl::xrpAccount</a></div><div class="ttdeci">AccountID const &amp; xrpAccount()</div><div class="ttdoc">Compute AccountID from public key.</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00156">AccountID.cpp:156</a></div></div>
<div class="ttc" id="anamespacexrpl_html_adb9e2d0295976aebd30bc1c7f4832442"><div class="ttname"><a href="namespacexrpl.html#adb9e2d0295976aebd30bc1c7f4832442">xrpl::encodeBase58Token</a></div><div class="ttdeci">std::string encodeBase58Token(TokenType type, void const *token, std::size_t size)</div><div class="ttdoc">Encode data in Base58Check format using XRPL alphabet.</div><div class="ttdef"><b>Definition</b> <a href="tokens_8cpp_source.html#l00176">tokens.cpp:176</a></div></div>
<div class="ttc" id="anamespacexrpl_html_aec03e7a86f99a0504b1c70d3c3cb6174"><div class="ttname"><a href="namespacexrpl.html#aec03e7a86f99a0504b1c70d3c3cb6174">xrpl::decodeBase58Token</a></div><div class="ttdeci">std::string decodeBase58Token(std::string const &amp;s, TokenType type)</div><div class="ttdef"><b>Definition</b> <a href="tokens_8cpp_source.html#l00186">tokens.cpp:186</a></div></div>
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<div class="ttc" id="astructxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID_html"><div class="ttname"><a href="structxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID.html">xrpl::detail::AccountIdCache::CachedAccountID</a></div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00027">AccountID.cpp:28</a></div></div>
<div class="ttc" id="astructxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID_html_a2e08acda6fa212a21ee97aaf5f70d5ce"><div class="ttname"><a href="structxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID.html#a2e08acda6fa212a21ee97aaf5f70d5ce">xrpl::detail::AccountIdCache::CachedAccountID::id</a></div><div class="ttdeci">AccountID id</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00029">AccountID.cpp:29</a></div></div>
<div class="ttc" id="astructxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID_html_ab27964629de2bcd677c5111e8d06d9a6"><div class="ttname"><a href="structxrpl_1_1detail_1_1AccountIdCache_1_1CachedAccountID.html#ab27964629de2bcd677c5111e8d06d9a6">xrpl::detail::AccountIdCache::CachedAccountID::encoding</a></div><div class="ttdeci">char encoding[40]</div><div class="ttdef"><b>Definition</b> <a href="AccountID_8cpp_source.html#l00030">AccountID.cpp:30</a></div></div>
<div class="ttc" id="astructxrpl_1_1ripesha__hasher_html"><div class="ttname"><a href="structxrpl_1_1ripesha__hasher.html">xrpl::ripesha_hasher</a></div><div class="ttdoc">Returns the RIPEMD-160 digest of the SHA256 hash of the message.</div><div class="ttdef"><b>Definition</b> <a href="digest_8h_source.html#l00116">digest.h:117</a></div></div>
<div class="ttc" id="astructxrpl_1_1ripesha__hasher_html_ae05e854b34e622a46b891772c2eadfe9"><div class="ttname"><a href="structxrpl_1_1ripesha__hasher.html#ae05e854b34e622a46b891772c2eadfe9">xrpl::ripesha_hasher::result_type</a></div><div class="ttdeci">std::array&lt; std::uint8_t, 20 &gt; result_type</div><div class="ttdef"><b>Definition</b> <a href="digest_8h_source.html#l00124">digest.h:124</a></div></div>
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