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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<div class="textblock"><code>#include &lt;stdbool.h&gt;</code><br />
<code>#include &lt;stdint.h&gt;</code><br />
</div>
<p><a href="ps3__crypto_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 id="header-func-members" class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a8ee401b8bd7370fef44a5cfdcf361ee6" id="r_a8ee401b8bd7370fef44a5cfdcf361ee6"><td class="memItemLeft">void&#160;</td><td class="memItemRight"><a class="el" href="#a8ee401b8bd7370fef44a5cfdcf361ee6">ps3_derive_disc_key</a> (const uint8_t data1[16], uint8_t disc_key[16])</td></tr>
<tr class="memdesc:a8ee401b8bd7370fef44a5cfdcf361ee6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Derive a PS3 disc key from a data1 key. <br /></td></tr>
<tr class="memitem:a9c59bc8ce8ecd8457a8eb62287b09915" id="r_a9c59bc8ce8ecd8457a8eb62287b09915"><td class="memItemLeft">void&#160;</td><td class="memItemRight"><a class="el" href="#a9c59bc8ce8ecd8457a8eb62287b09915">ps3_derive_iv</a> (uint64_t sector_num, uint8_t iv[16])</td></tr>
<tr class="memdesc:a9c59bc8ce8ecd8457a8eb62287b09915"><td class="mdescLeft">&#160;</td><td class="mdescRight">Derive the per-sector AES IV from a sector number. <br /></td></tr>
<tr class="memitem:af9a3081e827ba140edc64fda2e93ee96" id="r_af9a3081e827ba140edc64fda2e93ee96"><td class="memItemLeft">void&#160;</td><td class="memItemRight"><a class="el" href="#af9a3081e827ba140edc64fda2e93ee96">ps3_encrypt_sector</a> (const uint8_t disc_key[16], uint64_t sector_num, uint8_t *data, uint32_t length)</td></tr>
<tr class="memdesc:af9a3081e827ba140edc64fda2e93ee96"><td class="mdescLeft">&#160;</td><td class="mdescRight">Encrypt a sector using PS3 disc encryption (AES-128-CBC). <br /></td></tr>
<tr class="memitem:af7ff1fb41dd6ad9c3449d7c48bc5a462" id="r_af7ff1fb41dd6ad9c3449d7c48bc5a462"><td class="memItemLeft">void&#160;</td><td class="memItemRight"><a class="el" href="#af7ff1fb41dd6ad9c3449d7c48bc5a462">ps3_decrypt_sector</a> (const uint8_t disc_key[16], uint64_t sector_num, uint8_t *data, uint32_t length)</td></tr>
<tr class="memdesc:af7ff1fb41dd6ad9c3449d7c48bc5a462"><td class="mdescLeft">&#160;</td><td class="mdescRight">Decrypt a sector using PS3 disc encryption (AES-128-CBC). <br /></td></tr>
<tr class="memitem:a8c99822e07011d07362d5d40487eded6" id="r_a8c99822e07011d07362d5d40487eded6"><td class="memItemLeft">void&#160;</td><td class="memItemRight"><a class="el" href="#a8c99822e07011d07362d5d40487eded6">ps3_lazy_init</a> (<a class="el" href="structaaruformat__context.html">aaruformat_context</a> *ctx)</td></tr>
<tr class="memdesc:a8c99822e07011d07362d5d40487eded6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Lazy-initialize PS3 encryption state from context media tags. <br /></td></tr>
</table>
<a name="doc-func-members" id="doc-func-members"></a><h2 id="header-doc-func-members" class="groupheader">Function Documentation</h2>
<a id="af7ff1fb41dd6ad9c3449d7c48bc5a462" name="af7ff1fb41dd6ad9c3449d7c48bc5a462"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af7ff1fb41dd6ad9c3449d7c48bc5a462">&#9670;&#160;</a></span>ps3_decrypt_sector()</h2>
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<div class="memproto">
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<td class="memname">void ps3_decrypt_sector </td>
<td>(</td>
<td class="paramtype">const uint8_t</td> <td class="paramname"><span class="paramname"><em>disc_key</em></span>[16], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t</td> <td class="paramname"><span class="paramname"><em>sector_num</em></span>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t *</td> <td class="paramname"><span class="paramname"><em>data</em></span>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t</td> <td class="paramname"><span class="paramname"><em>length</em></span>&#160;)</td>
</tr>
</table>
</div><div class="memdoc">
<p>Decrypt a sector using PS3 disc encryption (AES-128-CBC). </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">disc_key</td><td>16-byte disc key. </td></tr>
<tr><td class="paramname">sector_num</td><td>Sector number (for IV derivation). </td></tr>
<tr><td class="paramname">data</td><td>Buffer to decrypt in-place. </td></tr>
<tr><td class="paramname">length</td><td>Number of bytes (must be multiple of 16). </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="ps3__crypto_8c_source.html#l00063">63</a> of file <a class="el" href="ps3__crypto_8c_source.html">ps3_crypto.c</a>.</p>
<p class="reference">References <a class="el" href="aes128_8c_source.html#l00290">aes128_cbc_decrypt()</a>, and <a class="el" href="ps3__crypto_8c_source.html#l00045">ps3_derive_iv()</a>.</p>
<p class="reference">Referenced by <a class="el" href="write_8c_source.html#l00102">aaruf_write_sector()</a>.</p>
</div>
</div>
<a id="a8ee401b8bd7370fef44a5cfdcf361ee6" name="a8ee401b8bd7370fef44a5cfdcf361ee6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8ee401b8bd7370fef44a5cfdcf361ee6">&#9670;&#160;</a></span>ps3_derive_disc_key()</h2>
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<td class="memname">void ps3_derive_disc_key </td>
<td>(</td>
<td class="paramtype">const uint8_t</td> <td class="paramname"><span class="paramname"><em>data1</em></span>[16], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t</td> <td class="paramname"><span class="paramname"><em>disc_key</em></span>[16]&#160;)</td>
</tr>
</table>
</div><div class="memdoc">
<p>Derive a PS3 disc key from a data1 key. </p>
<p>disc_key = AES-128-CBC-Encrypt(PS3_ERK, PS3_ERK_IV, data1)</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">data1</td><td>16-byte data1 key (from disc or IRD). </td></tr>
<tr><td class="paramname">disc_key</td><td>Output: 16-byte derived disc key. </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="ps3__crypto_8c_source.html#l00039">39</a> of file <a class="el" href="ps3__crypto_8c_source.html">ps3_crypto.c</a>.</p>
<p class="reference">References <a class="el" href="aes128_8c_source.html#l00274">aes128_cbc_encrypt()</a>, <a class="el" href="ps3__crypto_8c_source.html#l00032">PS3_ERK</a>, and <a class="el" href="ps3__crypto_8c_source.html#l00036">PS3_ERK_IV</a>.</p>
<p class="reference">Referenced by <a class="el" href="ps3__crypto_8c_source.html#l00070">ps3_lazy_init()</a>.</p>
</div>
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<a id="a9c59bc8ce8ecd8457a8eb62287b09915" name="a9c59bc8ce8ecd8457a8eb62287b09915"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9c59bc8ce8ecd8457a8eb62287b09915">&#9670;&#160;</a></span>ps3_derive_iv()</h2>
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<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void ps3_derive_iv </td>
<td>(</td>
<td class="paramtype">uint64_t</td> <td class="paramname"><span class="paramname"><em>sector_num</em></span>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t</td> <td class="paramname"><span class="paramname"><em>iv</em></span>[16]&#160;)</td>
</tr>
</table>
</div><div class="memdoc">
<p>Derive the per-sector AES IV from a sector number. </p>
<p>IV = sector number as 128-bit big-endian integer, zero-padded left.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">sector_num</td><td>Sector number. </td></tr>
<tr><td class="paramname">iv</td><td>Output: 16-byte IV buffer. </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="ps3__crypto_8c_source.html#l00045">45</a> of file <a class="el" href="ps3__crypto_8c_source.html">ps3_crypto.c</a>.</p>
<p class="reference">Referenced by <a class="el" href="ps3__crypto_8c_source.html#l00063">ps3_decrypt_sector()</a>, and <a class="el" href="ps3__crypto_8c_source.html#l00056">ps3_encrypt_sector()</a>.</p>
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<a id="af9a3081e827ba140edc64fda2e93ee96" name="af9a3081e827ba140edc64fda2e93ee96"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af9a3081e827ba140edc64fda2e93ee96">&#9670;&#160;</a></span>ps3_encrypt_sector()</h2>
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<div class="memproto">
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<td class="memname">void ps3_encrypt_sector </td>
<td>(</td>
<td class="paramtype">const uint8_t</td> <td class="paramname"><span class="paramname"><em>disc_key</em></span>[16], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t</td> <td class="paramname"><span class="paramname"><em>sector_num</em></span>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t *</td> <td class="paramname"><span class="paramname"><em>data</em></span>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t</td> <td class="paramname"><span class="paramname"><em>length</em></span>&#160;)</td>
</tr>
</table>
</div><div class="memdoc">
<p>Encrypt a sector using PS3 disc encryption (AES-128-CBC). </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">disc_key</td><td>16-byte disc key. </td></tr>
<tr><td class="paramname">sector_num</td><td>Sector number (for IV derivation). </td></tr>
<tr><td class="paramname">data</td><td>Buffer to encrypt in-place. </td></tr>
<tr><td class="paramname">length</td><td>Number of bytes (must be multiple of 16). </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="ps3__crypto_8c_source.html#l00056">56</a> of file <a class="el" href="ps3__crypto_8c_source.html">ps3_crypto.c</a>.</p>
<p class="reference">References <a class="el" href="aes128_8c_source.html#l00274">aes128_cbc_encrypt()</a>, and <a class="el" href="ps3__crypto_8c_source.html#l00045">ps3_derive_iv()</a>.</p>
<p class="reference">Referenced by <a class="el" href="read_8c_source.html#l00352">aaruf_read_sector()</a>.</p>
</div>
</div>
<a id="a8c99822e07011d07362d5d40487eded6" name="a8c99822e07011d07362d5d40487eded6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8c99822e07011d07362d5d40487eded6">&#9670;&#160;</a></span>ps3_lazy_init()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void ps3_lazy_init </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structaaruformat__context.html">aaruformat_context</a> *</td> <td class="paramname"><span class="paramname"><em>ctx</em></span></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Lazy-initialize PS3 encryption state from context media tags. </p>
<p>Reads kMediaTagPs3DiscKey and kMediaTagPs3EncryptionMap from the context's media tag hash table. Safe to call multiple times (no-op after first init). On failure, leaves fields NULL so callers degrade gracefully.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ctx</td><td>The aaruformat context. </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="ps3__crypto_8c_source.html#l00070">70</a> of file <a class="el" href="ps3__crypto_8c_source.html">ps3_crypto.c</a>.</p>
<p class="reference">References <a class="el" href="context_8h_source.html#l00123">mediaTagEntry::data</a>, <a class="el" href="aaru_8h_source.html#l01081">kMediaTagPs3Data1</a>, <a class="el" href="aaru_8h_source.html#l01080">kMediaTagPs3DiscKey</a>, <a class="el" href="aaru_8h_source.html#l01084">kMediaTagPs3EncryptionMap</a>, <a class="el" href="context_8h_source.html#l00125">mediaTagEntry::length</a>, <a class="el" href="context_8h_source.html#l00267">aaruformat_context::mediaTags</a>, <a class="el" href="ps3__crypto_8c_source.html#l00039">ps3_derive_disc_key()</a>, <a class="el" href="ps3__encryption__map_8c_source.html#l00117">ps3_deserialize_encryption_map()</a>, <a class="el" href="context_8h_source.html#l00348">aaruformat_context::ps3_disc_key</a>, <a class="el" href="context_8h_source.html#l00350">aaruformat_context::ps3_plaintext_region_count</a>, and <a class="el" href="context_8h_source.html#l00349">aaruformat_context::ps3_plaintext_regions</a>.</p>
<p class="reference">Referenced by <a class="el" href="read_8c_source.html#l00352">aaruf_read_sector()</a>, and <a class="el" href="write_8c_source.html#l00102">aaruf_write_sector()</a>.</p>
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