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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<div class="headertitle"><div class="title">wii_crypto.c</div></div>
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<a href="wii__crypto_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * This file is part of the Aaru Data Preservation Suite.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Copyright (c) 2019-2026 Natalia Portillo.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * This library is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * it under the terms of the GNU Lesser General Public License as</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * published by the Free Software Foundation; version 2.1 of the License.</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> *</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> * This library is distributed in the hope that it will be useful, but</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> *</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * License along with this library; if not, see</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * &lt;https://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> *</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> * Nintendo Wii disc encryption: partition key map, group encrypt/decrypt.</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"> */</span></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="preprocessor">#include &lt;stdint.h&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include &lt;string.h&gt;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &lt;<a class="code" href="aaruformat_8h.html">aaruformat.h</a>&gt;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include &quot;<a class="code" href="aes128_8h.html">../lib/aes128.h</a>&quot;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include &quot;<a class="code" href="wii__crypto_8h.html">wii_crypto.h</a>&quot;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="comment">/* ---- Little-endian helpers ---- */</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="foldopen" id="foldopen00032" data-start="{" data-end="}">
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"><a class="line" href="wii__crypto_8c.html#a2e85418928614df336b5df9f3c28cbc7"> 32</a></span><span class="keyword">static</span> uint32_t <a class="code hl_function" href="wii__crypto_8c.html#a2e85418928614df336b5df9f3c28cbc7">read_le32</a>(<span class="keyword">const</span> uint8_t *p)</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span>{ <span class="keywordflow">return</span> (uint32_t)p[0] | ((uint32_t)p[1] &lt;&lt; 8) | ((uint32_t)p[2] &lt;&lt; 16) | ((uint32_t)p[3] &lt;&lt; 24); }</div>
</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="foldopen" id="foldopen00035" data-start="{" data-end="}">
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"><a class="line" href="wii__crypto_8c.html#a4ed80664538efb908d3c161aec613612"> 35</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="wii__crypto_8c.html#a4ed80664538efb908d3c161aec613612">write_le32</a>(uint8_t *p, uint32_t v)</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span>{</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> p[0] = (uint8_t)(v &amp; 0xFF);</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> p[1] = (uint8_t)((v &gt;&gt; 8) &amp; 0xFF);</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> p[2] = (uint8_t)((v &gt;&gt; 16) &amp; 0xFF);</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> p[3] = (uint8_t)((v &gt;&gt; 24) &amp; 0xFF);</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span>}</div>
</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="comment">/* ---- Key lookup ---- */</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="foldopen" id="foldopen00045" data-start="{" data-end="}">
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"><a class="line" href="wii__crypto_8c.html#a1ce70cb0d83e9893accd7f06f218146a"> 45</a></span><span class="keyword">const</span> uint8_t *<a class="code hl_function" href="wii__crypto_8c.html#a1ce70cb0d83e9893accd7f06f218146a">wii_get_sector_key</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a> *regions, uint32_t region_count, uint64_t logical_sector)</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span>{</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keywordflow">if</span>(regions == NULL || region_count == 0) <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="comment">/* Convert logical (2048-byte) sector to physical (0x8000-byte) group */</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> uint64_t phys_group = logical_sector / <a class="code hl_define" href="wii__crypto_8h.html#af6ed59742196c351932ad0f0e5e43566">WII_LOGICAL_PER_GROUP</a>;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; region_count; i++)</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> {</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">if</span>(phys_group &gt;= regions[i].start_sector &amp;&amp; phys_group &lt; regions[i].end_sector)</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> {</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="comment">/* For Wii, data_offset already skips the partition header.</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="comment"> * ALL groups in [start_sector, end_sector) are encrypted. */</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordflow">return</span> regions[i].<a class="code hl_variable" href="structWiiPartitionRegion.html#a13965236bc19addfba3c0e7d089783bf">key</a>;</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> }</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="comment">/* Outside any known partition — plaintext */</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span>}</div>
</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="foldopen" id="foldopen00066" data-start="{" data-end="}">
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"><a class="line" href="wii__crypto_8c.html#a96843770fc0189beeae56cbab35c1d79"> 66</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="wii__crypto_8c.html#a96843770fc0189beeae56cbab35c1d79">wii_is_sector_encrypted</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a> *regions, uint32_t region_count, uint64_t logical_sector)</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span>{ <span class="keywordflow">return</span> <a class="code hl_function" href="wii__crypto_8c.html#a1ce70cb0d83e9893accd7f06f218146a">wii_get_sector_key</a>(regions, region_count, logical_sector) != NULL; }</div>
</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span><span class="comment">/* ---- Group encrypt/decrypt ---- */</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="foldopen" id="foldopen00071" data-start="{" data-end="}">
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"><a class="line" href="wii__crypto_8c.html#a95d508bfdafd91552793ad54a677d511"> 71</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="wii__crypto_8c.html#a95d508bfdafd91552793ad54a677d511">wii_encrypt_group</a>(<span class="keyword">const</span> uint8_t key[16], <span class="keyword">const</span> uint8_t *hash_block, <span class="keyword">const</span> uint8_t *data_in, uint8_t *out)</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span>{</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="comment">/* Hash block: first 0x400 bytes, IV = all zeros */</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> uint8_t iv[16];</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> memset(iv, 0, <span class="keyword">sizeof</span>(iv));</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> memcpy(out, hash_block, <a class="code hl_define" href="wii__crypto_8h.html#ac673ea3e31315ae51d390d06df7340cb">WII_GROUP_HASH_SIZE</a>);</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <a class="code hl_function" href="aes128_8c.html#ae5b59a027bc443c26cc5626455d77eb9">aes128_cbc_encrypt</a>(key, iv, out, <a class="code hl_define" href="wii__crypto_8h.html#ac673ea3e31315ae51d390d06df7340cb">WII_GROUP_HASH_SIZE</a>);</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="comment">/* Data block: next 0x7C00 bytes.</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="comment"> * IV = bytes 0x3D0..0x3DF of the ENCRYPTED hash output (just written to out). */</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> uint8_t data_iv[16];</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> memcpy(data_iv, out + 0x3D0, 16);</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> memcpy(out + <a class="code hl_define" href="wii__crypto_8h.html#ac673ea3e31315ae51d390d06df7340cb">WII_GROUP_HASH_SIZE</a>, data_in, <a class="code hl_define" href="wii__crypto_8h.html#ab21867411a4f988431fc692baa0389d6">WII_GROUP_DATA_SIZE</a>);</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <a class="code hl_function" href="aes128_8c.html#ae5b59a027bc443c26cc5626455d77eb9">aes128_cbc_encrypt</a>(key, data_iv, out + <a class="code hl_define" href="wii__crypto_8h.html#ac673ea3e31315ae51d390d06df7340cb">WII_GROUP_HASH_SIZE</a>, <a class="code hl_define" href="wii__crypto_8h.html#ab21867411a4f988431fc692baa0389d6">WII_GROUP_DATA_SIZE</a>);</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span>}</div>
</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div>
<div class="foldopen" id="foldopen00087" data-start="{" data-end="}">
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"><a class="line" href="wii__crypto_8c.html#aaf605c039a65fc8507d97ef47b6641ee"> 87</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="wii__crypto_8c.html#aaf605c039a65fc8507d97ef47b6641ee">wii_decrypt_group</a>(<span class="keyword">const</span> uint8_t key[16], <span class="keyword">const</span> uint8_t *in, uint8_t *hash_block, uint8_t *data_out)</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span>{</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="comment">/* Hash block: first 0x400 bytes, IV = all zeros */</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> uint8_t iv[16];</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> memset(iv, 0, <span class="keyword">sizeof</span>(iv));</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> memcpy(hash_block, in, <a class="code hl_define" href="wii__crypto_8h.html#ac673ea3e31315ae51d390d06df7340cb">WII_GROUP_HASH_SIZE</a>);</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <a class="code hl_function" href="aes128_8c.html#a86c652b61efa48d45729e9eea1bab8b1">aes128_cbc_decrypt</a>(key, iv, hash_block, <a class="code hl_define" href="wii__crypto_8h.html#ac673ea3e31315ae51d390d06df7340cb">WII_GROUP_HASH_SIZE</a>);</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> </div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="comment">/* Data block: next 0x7C00 bytes.</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span><span class="comment"> * IV = bytes 0x3D0..0x3DF of the ENCRYPTED input (not the decrypted hash block). */</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> uint8_t data_iv[16];</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> memcpy(data_iv, in + 0x3D0, 16);</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> memcpy(data_out, in + <a class="code hl_define" href="wii__crypto_8h.html#ac673ea3e31315ae51d390d06df7340cb">WII_GROUP_HASH_SIZE</a>, <a class="code hl_define" href="wii__crypto_8h.html#ab21867411a4f988431fc692baa0389d6">WII_GROUP_DATA_SIZE</a>);</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <a class="code hl_function" href="aes128_8c.html#a86c652b61efa48d45729e9eea1bab8b1">aes128_cbc_decrypt</a>(key, data_iv, data_out, <a class="code hl_define" href="wii__crypto_8h.html#ab21867411a4f988431fc692baa0389d6">WII_GROUP_DATA_SIZE</a>);</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span>}</div>
</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span><span class="comment">/* ---- Serialization (same format as Wii U) ---- */</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="foldopen" id="foldopen00105" data-start="{" data-end="}">
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"><a class="line" href="wii__crypto_8c.html#a6bf12a89fe7f2d5be3fa99dc69e19979"> 105</a></span>int32_t <a class="code hl_function" href="wii__crypto_8c.html#a6bf12a89fe7f2d5be3fa99dc69e19979">wii_serialize_partition_key_map</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a> *regions, uint32_t count, uint8_t **out_data,</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> uint32_t *out_len)</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span>{</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">if</span>(out_data == NULL || out_len == NULL) <span class="keywordflow">return</span> -1;</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="keywordflow">if</span>(count &gt; <a class="code hl_define" href="wii__crypto_8h.html#aad4c6376c0653f8b2836fa3a703a97ad">WII_MAX_PARTITIONS</a>) <span class="keywordflow">return</span> -3;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> </div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> uint32_t size = 4 + count * 24;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> uint8_t *buf = (uint8_t *)malloc(size);</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> </div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordflow">if</span>(buf == NULL) <span class="keywordflow">return</span> -4;</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <a class="code hl_function" href="wii__crypto_8c.html#a4ed80664538efb908d3c161aec613612">write_le32</a>(buf, count);</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordflow">for</span>(uint32_t i = 0; i &lt; count; i++)</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> {</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> uint32_t offset = 4 + i * 24;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <a class="code hl_function" href="wii__crypto_8c.html#a4ed80664538efb908d3c161aec613612">write_le32</a>(buf + offset, regions[i].start_sector);</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <a class="code hl_function" href="wii__crypto_8c.html#a4ed80664538efb908d3c161aec613612">write_le32</a>(buf + offset + 4, regions[i].end_sector);</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> memcpy(buf + offset + 8, regions[i].key, 16);</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> }</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> </div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> *out_data = buf;</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> *out_len = size;</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span>}</div>
</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="foldopen" id="foldopen00132" data-start="{" data-end="}">
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"><a class="line" href="wii__crypto_8c.html#a2b7a0d75fbfe5563b03a6e83d528402a"> 132</a></span>int32_t <a class="code hl_function" href="wii__crypto_8c.html#a2b7a0d75fbfe5563b03a6e83d528402a">wii_deserialize_partition_key_map</a>(<span class="keyword">const</span> uint8_t *data, uint32_t data_len, <a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a> **regions,</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> uint32_t *count)</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span>{</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="keywordflow">if</span>(data == NULL || regions == NULL || count == NULL) <span class="keywordflow">return</span> -1;</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">if</span>(data_len &lt; 4) <span class="keywordflow">return</span> -2;</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> </div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> uint32_t region_count = <a class="code hl_function" href="wii__crypto_8c.html#a2e85418928614df336b5df9f3c28cbc7">read_le32</a>(data);</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordflow">if</span>(region_count &gt; <a class="code hl_define" href="wii__crypto_8h.html#aad4c6376c0653f8b2836fa3a703a97ad">WII_MAX_PARTITIONS</a>) <span class="keywordflow">return</span> -3;</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keywordflow">if</span>(region_count == 0)</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> {</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> *regions = NULL;</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> *count = 0;</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> }</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> uint32_t required = 4 + region_count * 24;</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">if</span>(data_len &lt; required) <span class="keywordflow">return</span> -2;</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a> *r = (<a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a> *)malloc(region_count * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a>));</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">if</span>(r == NULL) <span class="keywordflow">return</span> -4;</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="keywordflow">for</span>(uint32_t i = 0; i &lt; region_count; i++)</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> {</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> uint32_t offset = 4 + i * 24;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> r[i].<a class="code hl_variable" href="structWiiPartitionRegion.html#a06eb8901b0a0b652c573d3879024efbb">start_sector</a> = <a class="code hl_function" href="wii__crypto_8c.html#a2e85418928614df336b5df9f3c28cbc7">read_le32</a>(data + offset);</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> r[i].<a class="code hl_variable" href="structWiiPartitionRegion.html#a99f8cd96b1258c9174988fcb3db1c92d">end_sector</a> = <a class="code hl_function" href="wii__crypto_8c.html#a2e85418928614df336b5df9f3c28cbc7">read_le32</a>(data + offset + 4);</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> memcpy(r[i].key, data + offset + 8, 16);</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="keywordflow">if</span>(r[i].start_sector &gt;= r[i].end_sector)</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> {</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> memset(r, 0, region_count * <span class="keyword">sizeof</span>(<a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a>));</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> free(r);</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">return</span> -5;</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> }</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> </div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> *regions = r;</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> *count = region_count;</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span>}</div>
</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> </div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span><span class="comment">/* ---- Lazy initialization ---- */</span></div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="foldopen" id="foldopen00180" data-start="{" data-end="}">
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"><a class="line" href="wii__crypto_8c.html#aee93568d673177b4ed369b0032c6c68b"> 180</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="wii__crypto_8c.html#aee93568d673177b4ed369b0032c6c68b">wii_lazy_init</a>(<a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> *ctx)</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span>{</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="keywordflow">if</span>(ctx == NULL) <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> </div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="comment">/* Read and deserialize partition key map from media tags */</span></div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aaf475c0a1941563a9e1598f02ac48b66">wii_partition_regions</a> == NULL)</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> {</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <a class="code hl_struct" href="structmediaTagEntry.html">mediaTagEntry</a> *item = NULL;</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> int32_t tag = <a class="code hl_enumvalue" href="group__MediaTags.html#ggabdd09c559df8f34ae68fcb2ff1892ebea9c9957b78c45e90f0a74b53452b510ea">kMediaTagWiiPartitionKeyMap</a>;</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> HASH_FIND_INT(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#a8b769e9fb9467aa11d4a2936cf5cf5ed">mediaTags</a>, &amp;tag, item);</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> </div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keywordflow">if</span>(item != NULL &amp;&amp; item-&gt;<a class="code hl_variable" href="structmediaTagEntry.html#aa96c6684fd98145d0089d72957d2afa7">length</a> &gt;= 4)</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> {</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a> *regions = NULL;</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> uint32_t count = 0;</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> </div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">if</span>(<a class="code hl_function" href="wii__crypto_8c.html#a2b7a0d75fbfe5563b03a6e83d528402a">wii_deserialize_partition_key_map</a>(item-&gt;<a class="code hl_variable" href="structmediaTagEntry.html#a334fc65b37efdfb624e804e98c398927">data</a>, item-&gt;<a class="code hl_variable" href="structmediaTagEntry.html#aa96c6684fd98145d0089d72957d2afa7">length</a>, &amp;regions, &amp;count) == 0)</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> {</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aaf475c0a1941563a9e1598f02ac48b66">wii_partition_regions</a> = regions;</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#aa3dd955c7f01ecb619b3862fecce7110">wii_partition_region_count</a> = count;</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> }</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> }</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> }</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> </div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="comment">/* Allocate the encrypted group cache if needed */</span></div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keywordflow">if</span>(ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ae1b2a0044c769c469ae161df9ed6de50">wii_encrypted_group_cache</a> == NULL)</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> {</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ae1b2a0044c769c469ae161df9ed6de50">wii_encrypted_group_cache</a> = (uint8_t *)malloc(<a class="code hl_define" href="wii__crypto_8h.html#a938e4b044436cfa7be47752ae7b58956">WII_GROUP_SIZE</a>);</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> ctx-&gt;<a class="code hl_variable" href="structaaruformat__context.html#ac9f970fc840120793cb8edb909a664f8">wii_cache_valid</a> = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> }</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span>}</div>
</div>
<div class="ttc" id="aaaruformat_8h_html"><div class="ttname"><a href="aaruformat_8h.html">aaruformat.h</a></div></div>
<div class="ttc" id="aaes128_8c_html_a86c652b61efa48d45729e9eea1bab8b1"><div class="ttname"><a href="aes128_8c.html#a86c652b61efa48d45729e9eea1bab8b1">aes128_cbc_decrypt</a></div><div class="ttdeci">void aes128_cbc_decrypt(const uint8_t key[16], const uint8_t iv[16], uint8_t *data, uint32_t length)</div><div class="ttdoc">AES-128 CBC decrypt data in-place.</div><div class="ttdef"><b>Definition</b> <a href="aes128_8c_source.html#l00290">aes128.c:290</a></div></div>
<div class="ttc" id="aaes128_8c_html_ae5b59a027bc443c26cc5626455d77eb9"><div class="ttname"><a href="aes128_8c.html#ae5b59a027bc443c26cc5626455d77eb9">aes128_cbc_encrypt</a></div><div class="ttdeci">void aes128_cbc_encrypt(const uint8_t key[16], const uint8_t iv[16], uint8_t *data, uint32_t length)</div><div class="ttdoc">AES-128 CBC encrypt data in-place.</div><div class="ttdef"><b>Definition</b> <a href="aes128_8c_source.html#l00274">aes128.c:274</a></div></div>
<div class="ttc" id="aaes128_8h_html"><div class="ttname"><a href="aes128_8h.html">aes128.h</a></div></div>
<div class="ttc" id="agroup__MediaTags_html_ggabdd09c559df8f34ae68fcb2ff1892ebea9c9957b78c45e90f0a74b53452b510ea"><div class="ttname"><a href="group__MediaTags.html#ggabdd09c559df8f34ae68fcb2ff1892ebea9c9957b78c45e90f0a74b53452b510ea">kMediaTagWiiPartitionKeyMap</a></div><div class="ttdeci">@ kMediaTagWiiPartitionKeyMap</div><div class="ttdoc">Nintendo Wii partition-to-key mapping with regions.</div><div class="ttdef"><b>Definition</b> <a href="aaru_8h_source.html#l01086">aaru.h:1086</a></div></div>
<div class="ttc" id="astructWiiPartitionRegion_html"><div class="ttname"><a href="structWiiPartitionRegion.html">WiiPartitionRegion</a></div><div class="ttdoc">A Wii partition region entry (in-memory representation).</div><div class="ttdef"><b>Definition</b> <a href="wii__crypto_8h_source.html#l00051">wii_crypto.h:52</a></div></div>
<div class="ttc" id="astructWiiPartitionRegion_html_a06eb8901b0a0b652c573d3879024efbb"><div class="ttname"><a href="structWiiPartitionRegion.html#a06eb8901b0a0b652c573d3879024efbb">WiiPartitionRegion::start_sector</a></div><div class="ttdeci">uint32_t start_sector</div><div class="ttdoc">First physical sector of partition.</div><div class="ttdef"><b>Definition</b> <a href="wii__crypto_8h_source.html#l00053">wii_crypto.h:53</a></div></div>
<div class="ttc" id="astructWiiPartitionRegion_html_a13965236bc19addfba3c0e7d089783bf"><div class="ttname"><a href="structWiiPartitionRegion.html#a13965236bc19addfba3c0e7d089783bf">WiiPartitionRegion::key</a></div><div class="ttdeci">uint8_t key[16]</div><div class="ttdoc">AES-128 partition key.</div><div class="ttdef"><b>Definition</b> <a href="wii__crypto_8h_source.html#l00055">wii_crypto.h:55</a></div></div>
<div class="ttc" id="astructWiiPartitionRegion_html_a99f8cd96b1258c9174988fcb3db1c92d"><div class="ttname"><a href="structWiiPartitionRegion.html#a99f8cd96b1258c9174988fcb3db1c92d">WiiPartitionRegion::end_sector</a></div><div class="ttdeci">uint32_t end_sector</div><div class="ttdoc">End physical sector (exclusive).</div><div class="ttdef"><b>Definition</b> <a href="wii__crypto_8h_source.html#l00054">wii_crypto.h:54</a></div></div>
<div class="ttc" id="astructaaruformat__context_html"><div class="ttname"><a href="structaaruformat__context.html">aaruformat_context</a></div><div class="ttdoc">Master context representing an open or in‑creation Aaru image.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00174">context.h:175</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_a8b769e9fb9467aa11d4a2936cf5cf5ed"><div class="ttname"><a href="structaaruformat__context.html#a8b769e9fb9467aa11d4a2936cf5cf5ed">aaruformat_context::mediaTags</a></div><div class="ttdeci">mediaTagEntry * mediaTags</div><div class="ttdoc">Hash table of extra media tags (uthash root).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00267">context.h:267</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_aa3dd955c7f01ecb619b3862fecce7110"><div class="ttname"><a href="structaaruformat__context.html#aa3dd955c7f01ecb619b3862fecce7110">aaruformat_context::wii_partition_region_count</a></div><div class="ttdeci">uint32_t wii_partition_region_count</div><div class="ttdoc">Number of partition regions.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00371">context.h:371</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_aaf475c0a1941563a9e1598f02ac48b66"><div class="ttname"><a href="structaaruformat__context.html#aaf475c0a1941563a9e1598f02ac48b66">aaruformat_context::wii_partition_regions</a></div><div class="ttdeci">void * wii_partition_regions</div><div class="ttdoc">Parsed WiiPartitionRegion array, NULL if not loaded.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00370">context.h:370</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_ac9f970fc840120793cb8edb909a664f8"><div class="ttname"><a href="structaaruformat__context.html#ac9f970fc840120793cb8edb909a664f8">aaruformat_context::wii_cache_valid</a></div><div class="ttdeci">bool wii_cache_valid</div><div class="ttdoc">Whether the encrypted group cache is valid.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00375">context.h:375</a></div></div>
<div class="ttc" id="astructaaruformat__context_html_ae1b2a0044c769c469ae161df9ed6de50"><div class="ttname"><a href="structaaruformat__context.html#ae1b2a0044c769c469ae161df9ed6de50">aaruformat_context::wii_encrypted_group_cache</a></div><div class="ttdeci">uint8_t * wii_encrypted_group_cache</div><div class="ttdoc">Cached re-encrypted 0x8000-byte group.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00373">context.h:373</a></div></div>
<div class="ttc" id="astructmediaTagEntry_html"><div class="ttname"><a href="structmediaTagEntry.html">mediaTagEntry</a></div><div class="ttdoc">Hash table entry for an arbitrary media tag (e.g., proprietary drive/medium descriptor).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00121">context.h:122</a></div></div>
<div class="ttc" id="astructmediaTagEntry_html_a334fc65b37efdfb624e804e98c398927"><div class="ttname"><a href="structmediaTagEntry.html#a334fc65b37efdfb624e804e98c398927">mediaTagEntry::data</a></div><div class="ttdeci">uint8_t * data</div><div class="ttdoc">Tag data blob (opaque to library core); length bytes long.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00123">context.h:123</a></div></div>
<div class="ttc" id="astructmediaTagEntry_html_aa96c6684fd98145d0089d72957d2afa7"><div class="ttname"><a href="structmediaTagEntry.html#aa96c6684fd98145d0089d72957d2afa7">mediaTagEntry::length</a></div><div class="ttdeci">uint32_t length</div><div class="ttdoc">Length in bytes of data.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00125">context.h:125</a></div></div>
<div class="ttc" id="awii__crypto_8c_html_a1ce70cb0d83e9893accd7f06f218146a"><div class="ttname"><a href="wii__crypto_8c.html#a1ce70cb0d83e9893accd7f06f218146a">wii_get_sector_key</a></div><div class="ttdeci">const uint8_t * wii_get_sector_key(const WiiPartitionRegion *regions, uint32_t region_count, uint64_t logical_sector)</div><div class="ttdoc">Get the encryption key for a given logical sector (2048-byte).</div><div class="ttdef"><b>Definition</b> <a href="#l00045">wii_crypto.c:45</a></div></div>
<div class="ttc" id="awii__crypto_8c_html_a2b7a0d75fbfe5563b03a6e83d528402a"><div class="ttname"><a href="wii__crypto_8c.html#a2b7a0d75fbfe5563b03a6e83d528402a">wii_deserialize_partition_key_map</a></div><div class="ttdeci">int32_t wii_deserialize_partition_key_map(const uint8_t *data, uint32_t data_len, WiiPartitionRegion **regions, uint32_t *count)</div><div class="ttdoc">Deserialize a Wii partition key map from a media tag buffer.</div><div class="ttdef"><b>Definition</b> <a href="#l00132">wii_crypto.c:132</a></div></div>
<div class="ttc" id="awii__crypto_8c_html_a2e85418928614df336b5df9f3c28cbc7"><div class="ttname"><a href="wii__crypto_8c.html#a2e85418928614df336b5df9f3c28cbc7">read_le32</a></div><div class="ttdeci">static uint32_t read_le32(const uint8_t *p)</div><div class="ttdef"><b>Definition</b> <a href="#l00032">wii_crypto.c:32</a></div></div>
<div class="ttc" id="awii__crypto_8c_html_a4ed80664538efb908d3c161aec613612"><div class="ttname"><a href="wii__crypto_8c.html#a4ed80664538efb908d3c161aec613612">write_le32</a></div><div class="ttdeci">static void write_le32(uint8_t *p, uint32_t v)</div><div class="ttdef"><b>Definition</b> <a href="#l00035">wii_crypto.c:35</a></div></div>
<div class="ttc" id="awii__crypto_8c_html_a6bf12a89fe7f2d5be3fa99dc69e19979"><div class="ttname"><a href="wii__crypto_8c.html#a6bf12a89fe7f2d5be3fa99dc69e19979">wii_serialize_partition_key_map</a></div><div class="ttdeci">int32_t wii_serialize_partition_key_map(const WiiPartitionRegion *regions, uint32_t count, uint8_t **out_data, uint32_t *out_len)</div><div class="ttdoc">Serialize a Wii partition key map for storage as a media tag.</div><div class="ttdef"><b>Definition</b> <a href="#l00105">wii_crypto.c:105</a></div></div>
<div class="ttc" id="awii__crypto_8c_html_a95d508bfdafd91552793ad54a677d511"><div class="ttname"><a href="wii__crypto_8c.html#a95d508bfdafd91552793ad54a677d511">wii_encrypt_group</a></div><div class="ttdeci">void wii_encrypt_group(const uint8_t key[16], const uint8_t *hash_block, const uint8_t *data_in, uint8_t *out)</div><div class="ttdoc">Encrypt a Wii group (0x8000 bytes) from separate hash_block + data.</div><div class="ttdef"><b>Definition</b> <a href="#l00071">wii_crypto.c:71</a></div></div>
<div class="ttc" id="awii__crypto_8c_html_a96843770fc0189beeae56cbab35c1d79"><div class="ttname"><a href="wii__crypto_8c.html#a96843770fc0189beeae56cbab35c1d79">wii_is_sector_encrypted</a></div><div class="ttdeci">bool wii_is_sector_encrypted(const WiiPartitionRegion *regions, uint32_t region_count, uint64_t logical_sector)</div><div class="ttdoc">Check if a logical sector is in an encrypted region.</div><div class="ttdef"><b>Definition</b> <a href="#l00066">wii_crypto.c:66</a></div></div>
<div class="ttc" id="awii__crypto_8c_html_aaf605c039a65fc8507d97ef47b6641ee"><div class="ttname"><a href="wii__crypto_8c.html#aaf605c039a65fc8507d97ef47b6641ee">wii_decrypt_group</a></div><div class="ttdeci">void wii_decrypt_group(const uint8_t key[16], const uint8_t *in, uint8_t *hash_block, uint8_t *data_out)</div><div class="ttdoc">Decrypt a Wii group (0x8000 bytes) into separate hash_block + data.</div><div class="ttdef"><b>Definition</b> <a href="#l00087">wii_crypto.c:87</a></div></div>
<div class="ttc" id="awii__crypto_8c_html_aee93568d673177b4ed369b0032c6c68b"><div class="ttname"><a href="wii__crypto_8c.html#aee93568d673177b4ed369b0032c6c68b">wii_lazy_init</a></div><div class="ttdeci">void wii_lazy_init(aaruformat_context *ctx)</div><div class="ttdoc">Lazy initialization: load partition key map from media tags.</div><div class="ttdef"><b>Definition</b> <a href="#l00180">wii_crypto.c:180</a></div></div>
<div class="ttc" id="awii__crypto_8h_html"><div class="ttname"><a href="wii__crypto_8h.html">wii_crypto.h</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_a938e4b044436cfa7be47752ae7b58956"><div class="ttname"><a href="wii__crypto_8h.html#a938e4b044436cfa7be47752ae7b58956">WII_GROUP_SIZE</a></div><div class="ttdeci">#define WII_GROUP_SIZE</div><div class="ttdoc">Wii physical group size (32 KiB).</div><div class="ttdef"><b>Definition</b> <a href="wii__crypto_8h_source.html#l00038">wii_crypto.h:38</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_aad4c6376c0653f8b2836fa3a703a97ad"><div class="ttname"><a href="wii__crypto_8h.html#aad4c6376c0653f8b2836fa3a703a97ad">WII_MAX_PARTITIONS</a></div><div class="ttdeci">#define WII_MAX_PARTITIONS</div><div class="ttdoc">Maximum number of partitions supported.</div><div class="ttdef"><b>Definition</b> <a href="wii__crypto_8h_source.html#l00043">wii_crypto.h:43</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_ab21867411a4f988431fc692baa0389d6"><div class="ttname"><a href="wii__crypto_8h.html#ab21867411a4f988431fc692baa0389d6">WII_GROUP_DATA_SIZE</a></div><div class="ttdeci">#define WII_GROUP_DATA_SIZE</div><div class="ttdoc">User data size within a group (31 KiB).</div><div class="ttdef"><b>Definition</b> <a href="wii__crypto_8h_source.html#l00040">wii_crypto.h:40</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_ac673ea3e31315ae51d390d06df7340cb"><div class="ttname"><a href="wii__crypto_8h.html#ac673ea3e31315ae51d390d06df7340cb">WII_GROUP_HASH_SIZE</a></div><div class="ttdeci">#define WII_GROUP_HASH_SIZE</div><div class="ttdoc">Hash block size within a group (1 KiB).</div><div class="ttdef"><b>Definition</b> <a href="wii__crypto_8h_source.html#l00039">wii_crypto.h:39</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_af6ed59742196c351932ad0f0e5e43566"><div class="ttname"><a href="wii__crypto_8h.html#af6ed59742196c351932ad0f0e5e43566">WII_LOGICAL_PER_GROUP</a></div><div class="ttdeci">#define WII_LOGICAL_PER_GROUP</div><div class="ttdoc">Number of 2048-byte logical sectors per group.</div><div class="ttdef"><b>Definition</b> <a href="wii__crypto_8h_source.html#l00041">wii_crypto.h:41</a></div></div>
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