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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.h</div></div>
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<a href="wii__crypto_8h.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">#ifndef LIBAARUFORMAT_NGCW_WII_CRYPTO_H</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#define LIBAARUFORMAT_NGCW_WII_CRYPTO_H</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include &lt;stdbool.h&gt;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &lt;stdint.h&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="comment">/* Forward declaration — guard against redefinition when aaruformat.h is also included */</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#ifndef AARUFORMAT_CONTEXT_DECLARED</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"><a class="line" href="wii__crypto_8h.html#ad8587c84f30a3f328869e304138d3ad8"> 29</a></span><span class="preprocessor">#define AARUFORMAT_CONTEXT_DECLARED</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a> <a class="code hl_struct" href="structaaruformat__context.html">aaruformat_context</a>;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#endif</span></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="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span></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="preprocessor">#endif</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"><a class="line" href="wii__crypto_8h.html#a938e4b044436cfa7be47752ae7b58956"> 38</a></span><span class="preprocessor">#define WII_GROUP_SIZE 0x8000 </span><span class="preprocessor"></span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"><a class="line" href="wii__crypto_8h.html#ac673ea3e31315ae51d390d06df7340cb"> 39</a></span><span class="preprocessor">#define WII_GROUP_HASH_SIZE 0x0400 </span><span class="preprocessor"></span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="wii__crypto_8h.html#ab21867411a4f988431fc692baa0389d6"> 40</a></span><span class="preprocessor">#define WII_GROUP_DATA_SIZE 0x7C00 </span><span class="preprocessor"></span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"><a class="line" href="wii__crypto_8h.html#af6ed59742196c351932ad0f0e5e43566"> 41</a></span><span class="preprocessor">#define WII_LOGICAL_PER_GROUP 16 </span><span class="preprocessor"></span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"><a class="line" href="wii__crypto_8h.html#a9ee328ed858e3139fbae54c007a00d64"> 42</a></span><span class="preprocessor">#define WII_SECTOR_SIZE 2048 </span><span class="preprocessor"></span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="wii__crypto_8h.html#aad4c6376c0653f8b2836fa3a703a97ad"> 43</a></span><span class="preprocessor">#define WII_MAX_PARTITIONS 32 </span><span class="preprocessor"></span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span></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="structWiiPartitionRegion.html"> 51</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a></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"><a class="line" href="structWiiPartitionRegion.html#a06eb8901b0a0b652c573d3879024efbb"> 53</a></span> uint32_t <a class="code hl_variable" href="structWiiPartitionRegion.html#a06eb8901b0a0b652c573d3879024efbb">start_sector</a>; </div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"><a class="line" href="structWiiPartitionRegion.html#a99f8cd96b1258c9174988fcb3db1c92d"> 54</a></span> uint32_t <a class="code hl_variable" href="structWiiPartitionRegion.html#a99f8cd96b1258c9174988fcb3db1c92d">end_sector</a>; </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"><a class="line" href="structWiiPartitionRegion.html#a13965236bc19addfba3c0e7d089783bf"> 55</a></span> uint8_t <a class="code hl_variable" href="structWiiPartitionRegion.html#a13965236bc19addfba3c0e7d089783bf">key</a>[16]; </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="wii__crypto_8h.html#a2e99ff5ec316b2357eb25684f6e7b89f"> 56</a></span> } <a class="code hl_struct" href="structWiiPartitionRegion.html">WiiPartitionRegion</a>;</div>
</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">const</span> uint8_t *<a class="code hl_function" href="wii__crypto_8h.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,</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> uint64_t logical_sector);</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="wii__crypto_8h.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="l00076" name="l00076"></a><span class="lineno"> 76</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keywordtype">void</span> <a class="code hl_function" href="wii__crypto_8h.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="l00089" name="l00089"></a><span class="lineno"> 89</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordtype">void</span> <a class="code hl_function" href="wii__crypto_8h.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="l00099" name="l00099"></a><span class="lineno"> 99</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> int32_t <a class="code hl_function" href="wii__crypto_8h.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="l00108" name="l00108"></a><span class="lineno"> 108</span> uint32_t *out_len);</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> int32_t <a class="code hl_function" href="wii__crypto_8h.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="l00114" name="l00114"></a><span class="lineno"> 114</span> uint32_t *count);</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordtype">void</span> <a class="code hl_function" href="wii__crypto_8h.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="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span><span class="preprocessor">#ifdef __cplusplus</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><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span><span class="preprocessor">#endif </span><span class="comment">/* LIBAARUFORMAT_NGCW_WII_CRYPTO_H */</span><span class="preprocessor"></span></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="#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="#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="#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="#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 increation 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="awii__crypto_8h_html_a1ce70cb0d83e9893accd7f06f218146a"><div class="ttname"><a href="wii__crypto_8h.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="wii__crypto_8c_source.html#l00045">wii_crypto.c:45</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_a2b7a0d75fbfe5563b03a6e83d528402a"><div class="ttname"><a href="wii__crypto_8h.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="wii__crypto_8c_source.html#l00132">wii_crypto.c:132</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_a6bf12a89fe7f2d5be3fa99dc69e19979"><div class="ttname"><a href="wii__crypto_8h.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="wii__crypto_8c_source.html#l00105">wii_crypto.c:105</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_a95d508bfdafd91552793ad54a677d511"><div class="ttname"><a href="wii__crypto_8h.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="wii__crypto_8c_source.html#l00071">wii_crypto.c:71</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_a96843770fc0189beeae56cbab35c1d79"><div class="ttname"><a href="wii__crypto_8h.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="wii__crypto_8c_source.html#l00066">wii_crypto.c:66</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_aaf605c039a65fc8507d97ef47b6641ee"><div class="ttname"><a href="wii__crypto_8h.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="wii__crypto_8c_source.html#l00087">wii_crypto.c:87</a></div></div>
<div class="ttc" id="awii__crypto_8h_html_aee93568d673177b4ed369b0032c6c68b"><div class="ttname"><a href="wii__crypto_8h.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="wii__crypto_8c_source.html#l00180">wii_crypto.c:180</a></div></div>
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