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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2014 Google Inc. All rights reserved.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// license that can be found in the LICENSE file or at</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/request_signer.h&quot;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;</div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &quot;packager/base/logging.h&quot;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &quot;packager/base/sha1.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &quot;packager/base/strings/string_number_conversions.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/aes_encryptor.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/rsa_key.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="keyword">namespace </span>edash_packager {</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;RequestSigner::RequestSigner(<span class="keyword">const</span> std::string&amp; signer_name)</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; : signer_name_(signer_name) {}</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;RequestSigner::~RequestSigner() {}</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;AesRequestSigner::AesRequestSigner(<span class="keyword">const</span> std::string&amp; signer_name,</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; scoped_ptr&lt;AesCbcEncryptor&gt; encryptor)</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; : RequestSigner(signer_name), aes_cbc_encryptor_(encryptor.Pass()) {</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; DCHECK(aes_cbc_encryptor_);</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;}</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;AesRequestSigner::~AesRequestSigner() {}</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;</div>
<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="../../d8/dcc/classedash__packager_1_1media_1_1AesRequestSigner.html#a1e43c2e7e3ab4f5e07d442ed59fc1278"> 29</a></span>&#160;<a class="code" href="../../d8/dcc/classedash__packager_1_1media_1_1AesRequestSigner.html">AesRequestSigner</a>* <a class="code" href="../../d8/dcc/classedash__packager_1_1media_1_1AesRequestSigner.html#a1e43c2e7e3ab4f5e07d442ed59fc1278">AesRequestSigner::CreateSigner</a>(<span class="keyword">const</span> std::string&amp; signer_name,</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; <span class="keyword">const</span> std::string&amp; aes_key_hex,</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <span class="keyword">const</span> std::string&amp; iv_hex) {</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; std::vector&lt;uint8_t&gt; aes_key;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; <span class="keywordflow">if</span> (!base::HexStringToBytes(aes_key_hex, &amp;aes_key)) {</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to convert hex string to bytes: &quot;</span> &lt;&lt; aes_key_hex;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; }</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; std::vector&lt;uint8_t&gt; iv;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <span class="keywordflow">if</span> (!base::HexStringToBytes(iv_hex, &amp;iv)) {</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to convert hex string to bytes: &quot;</span> &lt;&lt; iv_hex;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; }</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; scoped_ptr&lt;AesCbcEncryptor&gt; encryptor(</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keyword">new</span> <a class="code" href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html">AesCbcEncryptor</a>(kPkcs5Padding, !kChainAcrossCalls));</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keywordflow">if</span> (!encryptor-&gt;InitializeWithIv(aes_key, iv))</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="../../d8/dcc/classedash__packager_1_1media_1_1AesRequestSigner.html">AesRequestSigner</a>(signer_name, encryptor.Pass());</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;}</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;</div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="../../d8/dcc/classedash__packager_1_1media_1_1AesRequestSigner.html#abd7ef59b6d38ee2baa7c095fde6d9d69"> 50</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="../../d8/dcc/classedash__packager_1_1media_1_1AesRequestSigner.html#abd7ef59b6d38ee2baa7c095fde6d9d69">AesRequestSigner::GenerateSignature</a>(<span class="keyword">const</span> std::string&amp; message,</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; std::string* signature) {</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; aes_cbc_encryptor_-&gt;Crypt(base::SHA1HashString(message), signature);</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;}</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;RsaRequestSigner::RsaRequestSigner(<span class="keyword">const</span> std::string&amp; signer_name,</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; scoped_ptr&lt;RsaPrivateKey&gt; rsa_private_key)</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; : <a class="code" href="../../dc/d73/classedash__packager_1_1media_1_1RequestSigner.html">RequestSigner</a>(signer_name), rsa_private_key_(rsa_private_key.Pass()) {</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; DCHECK(rsa_private_key_);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;}</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;RsaRequestSigner::~RsaRequestSigner() {}</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;</div>
<div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="../../dd/da8/classedash__packager_1_1media_1_1RsaRequestSigner.html#a51517907c457f9f991e1a72ce4355183"> 63</a></span>&#160;<a class="code" href="../../dd/da8/classedash__packager_1_1media_1_1RsaRequestSigner.html">RsaRequestSigner</a>* <a class="code" href="../../dd/da8/classedash__packager_1_1media_1_1RsaRequestSigner.html#a51517907c457f9f991e1a72ce4355183">RsaRequestSigner::CreateSigner</a>(</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keyword">const</span> std::string&amp; signer_name,</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keyword">const</span> std::string&amp; pkcs1_rsa_key) {</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; scoped_ptr&lt;RsaPrivateKey&gt; rsa_private_key(</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <a class="code" href="../../d5/d62/classedash__packager_1_1media_1_1RsaPrivateKey.html#a9360becce7c1e7be0bdecf2ce411b871">RsaPrivateKey::Create</a>(pkcs1_rsa_key));</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keywordflow">if</span> (!rsa_private_key)</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="../../dd/da8/classedash__packager_1_1media_1_1RsaRequestSigner.html">RsaRequestSigner</a>(signer_name, rsa_private_key.Pass());</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;}</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;</div>
<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="../../dd/da8/classedash__packager_1_1media_1_1RsaRequestSigner.html#abeb03b173b601577b16cd18a1cf70738"> 73</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="../../dd/da8/classedash__packager_1_1media_1_1RsaRequestSigner.html#abeb03b173b601577b16cd18a1cf70738">RsaRequestSigner::GenerateSignature</a>(<span class="keyword">const</span> std::string&amp; message,</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; std::string* signature) {</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keywordflow">return</span> rsa_private_key_-&gt;GenerateSignature(message, signature);</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;}</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;} <span class="comment">// namespace edash_packager</span></div>
<div class="ttc" id="classedash__packager_1_1media_1_1RsaRequestSigner_html_abeb03b173b601577b16cd18a1cf70738"><div class="ttname"><a href="../../dd/da8/classedash__packager_1_1media_1_1RsaRequestSigner.html#abeb03b173b601577b16cd18a1cf70738">edash_packager::media::RsaRequestSigner::GenerateSignature</a></div><div class="ttdeci">bool GenerateSignature(const std::string &amp;message, std::string *signature) override</div><div class="ttdoc">RequestSigner implementation override. </div><div class="ttdef"><b>Definition:</b> <a href="../../d4/df5/request__signer_8cc_source.html#l00073">request_signer.cc:73</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesRequestSigner_html_a1e43c2e7e3ab4f5e07d442ed59fc1278"><div class="ttname"><a href="../../d8/dcc/classedash__packager_1_1media_1_1AesRequestSigner.html#a1e43c2e7e3ab4f5e07d442ed59fc1278">edash_packager::media::AesRequestSigner::CreateSigner</a></div><div class="ttdeci">static AesRequestSigner * CreateSigner(const std::string &amp;signer_name, const std::string &amp;aes_key_hex, const std::string &amp;iv_hex)</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/df5/request__signer_8cc_source.html#l00029">request_signer.cc:29</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1RsaPrivateKey_html_a9360becce7c1e7be0bdecf2ce411b871"><div class="ttname"><a href="../../d5/d62/classedash__packager_1_1media_1_1RsaPrivateKey.html#a9360becce7c1e7be0bdecf2ce411b871">edash_packager::media::RsaPrivateKey::Create</a></div><div class="ttdeci">static RsaPrivateKey * Create(const std::string &amp;serialized_key)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/dd9/rsa__key_8cc_source.html#l00097">rsa_key.cc:97</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesRequestSigner_html"><div class="ttname"><a href="../../d8/dcc/classedash__packager_1_1media_1_1AesRequestSigner.html">edash_packager::media::AesRequestSigner</a></div><div class="ttdoc">AesRequestSigner uses AES-CBC signing. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/dd4/request__signer_8h_source.html#l00043">request_signer.h:43</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesRequestSigner_html_abd7ef59b6d38ee2baa7c095fde6d9d69"><div class="ttname"><a href="../../d8/dcc/classedash__packager_1_1media_1_1AesRequestSigner.html#abd7ef59b6d38ee2baa7c095fde6d9d69">edash_packager::media::AesRequestSigner::GenerateSignature</a></div><div class="ttdeci">bool GenerateSignature(const std::string &amp;message, std::string *signature) override</div><div class="ttdoc">RequestSigner implementation override. </div><div class="ttdef"><b>Definition:</b> <a href="../../d4/df5/request__signer_8cc_source.html#l00050">request_signer.cc:50</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1RsaRequestSigner_html_a51517907c457f9f991e1a72ce4355183"><div class="ttname"><a href="../../dd/da8/classedash__packager_1_1media_1_1RsaRequestSigner.html#a51517907c457f9f991e1a72ce4355183">edash_packager::media::RsaRequestSigner::CreateSigner</a></div><div class="ttdeci">static RsaRequestSigner * CreateSigner(const std::string &amp;signer_name, const std::string &amp;pkcs1_rsa_key)</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/df5/request__signer_8cc_source.html#l00063">request_signer.cc:63</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1RsaRequestSigner_html"><div class="ttname"><a href="../../dd/da8/classedash__packager_1_1media_1_1RsaRequestSigner.html">edash_packager::media::RsaRequestSigner</a></div><div class="ttdoc">RsaRequestSigner uses RSA-PSS signing. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/dd4/request__signer_8h_source.html#l00067">request_signer.h:67</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1RequestSigner_html"><div class="ttname"><a href="../../dc/d73/classedash__packager_1_1media_1_1RequestSigner.html">edash_packager::media::RequestSigner</a></div><div class="ttdoc">Abstract class used for signature generation. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/dd4/request__signer_8h_source.html#l00021">request_signer.h:21</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1AesCbcEncryptor_html"><div class="ttname"><a href="../../da/d7f/classedash__packager_1_1media_1_1AesCbcEncryptor.html">edash_packager::media::AesCbcEncryptor</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d1/df0/aes__encryptor_8h_source.html#l00087">aes_encryptor.h:87</a></div></div>
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