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 <span id="projectnumber">7.0</span>
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<div class="title">strciphr.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// strciphr.cpp - originally written and placed in the public domain by Wei Dai</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#include "<a class="code" href="pch_8h.html">pch.h</a>"</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> </div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#ifndef CRYPTOPP_IMPORTS</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "<a class="code" href="strciphr_8h.html">strciphr.h</a>"</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="keyword">template</span> <<span class="keyword">class</span> S></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="keywordtype">void</span> <a class="code" href="class_additive_cipher_template.html">AdditiveCipherTemplate<S>::UncheckedSetKey</a>(<span class="keyword">const</span> <span class="keywordtype">byte</span> *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &params)</div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> {</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  PolicyInterface &policy = this->AccessPolicy();</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  policy.CipherSetKey(params, key, length);</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  m_leftOver = 0;</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bufferByteSize = policy.CanOperateKeystream() ? GetBufferByteSize(policy) : <a class="code" href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a>(1024U, GetBufferByteSize(policy));</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  m_buffer.New(bufferByteSize);</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keywordflow">if</span> (this->IsResynchronizable())</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  {</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keywordtype">size_t</span> ivLength;</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keyword">const</span> <span class="keywordtype">byte</span> *iv = this->GetIVAndThrowIfInvalid(params, ivLength);</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  policy.CipherResynchronize(m_buffer, iv, ivLength);</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  }</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> }</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">template</span> <<span class="keyword">class</span> S></div><div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="class_additive_cipher_template.html#aa8cfabe995c7262fc51e63d8d8269c2b"> 29</a></span> <span class="keywordtype">void</span> <a class="code" href="class_additive_cipher_template.html#aa8cfabe995c7262fc51e63d8d8269c2b">AdditiveCipherTemplate<S>::GenerateBlock</a>(<span class="keywordtype">byte</span> *outString, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordflow">if</span> (m_leftOver > 0)</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  {</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordtype">size_t</span> len = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(m_leftOver, length);</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  memcpy(outString, KeystreamBufferEnd()-m_leftOver, len);</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  length -= len;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  m_leftOver -= len;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  outString += len;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">if</span> (!length)</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  }</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_leftOver == 0);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <a class="code" href="struct_additive_cipher_abstract_policy.html">PolicyInterface</a> &policy = this->AccessPolicy();</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bytesPerIteration = policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#a573f7abcf5929be546bddc32139bf370">GetBytesPerIteration</a>();</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">if</span> (length >= bytesPerIteration)</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  {</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">size_t</span> iterations = length / bytesPerIteration;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#aea8268ee42cbc98cf9be638bf77aafef">WriteKeystream</a>(outString, iterations);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  outString += iterations * bytesPerIteration;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  length -= iterations * bytesPerIteration;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  }</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">if</span> (length > 0)</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordtype">size_t</span> bufferByteSize = <a class="code" href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a>(length, bytesPerIteration);</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">size_t</span> bufferIterations = bufferByteSize / bytesPerIteration;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#aea8268ee42cbc98cf9be638bf77aafef">WriteKeystream</a>(KeystreamBufferEnd()-bufferByteSize, bufferIterations);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  memcpy(outString, KeystreamBufferEnd()-bufferByteSize, length);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  m_leftOver = bufferByteSize - length;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  }</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> }</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">template</span> <<span class="keyword">class</span> S></div><div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="class_additive_cipher_template.html#a5903c41f2e4e2aa6df44715244f2f3f3"> 67</a></span> <span class="keywordtype">void</span> <a class="code" href="class_additive_cipher_template.html#a5903c41f2e4e2aa6df44715244f2f3f3">AdditiveCipherTemplate<S>::ProcessData</a>(<span class="keywordtype">byte</span> *outString, <span class="keyword">const</span> <span class="keywordtype">byte</span> *inString, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">if</span> (m_leftOver > 0)</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  {</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">size_t</span> len = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(m_leftOver, length);</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(outString, inString, KeystreamBufferEnd()-m_leftOver, len);</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  length -= len;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  m_leftOver -= len;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  inString += len;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  outString += len;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">if</span> (!length)</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  }</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_leftOver == 0);</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="struct_additive_cipher_abstract_policy.html">PolicyInterface</a> &policy = this->AccessPolicy();</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bytesPerIteration = policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#a573f7abcf5929be546bddc32139bf370">GetBytesPerIteration</a>();</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> (policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#a02d1a81c11cf52ed48a5c10357a39717">CanOperateKeystream</a>() && length >= bytesPerIteration)</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordtype">size_t</span> iterations = length / bytesPerIteration;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> alignment = policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#a156c179304f2a5d119f74806b5b263ec">GetAlignment</a>();</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="strciphr_8h.html#ab4a226527d2bd01ff19bfa14d0974227">KeystreamOperation</a> operation = <a class="code" href="strciphr_8h.html#ab4a226527d2bd01ff19bfa14d0974227">KeystreamOperation</a>((<a class="code" href="misc_8h.html#a726c3b76265182681f5d5fd173ab5676">IsAlignedOn</a>(inString, alignment) * 2) | (<span class="keywordtype">int</span>)<a class="code" href="misc_8h.html#a726c3b76265182681f5d5fd173ab5676">IsAlignedOn</a>(outString, alignment));</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#ae948f2e69229ba39837e498a464606d4">OperateKeystream</a>(operation, outString, inString, iterations);</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  inString += iterations * bytesPerIteration;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  outString += iterations * bytesPerIteration;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  length -= iterations * bytesPerIteration;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">if</span> (!length)</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordtype">size_t</span> bufferByteSize = m_buffer.size();</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordtype">size_t</span> bufferIterations = bufferByteSize / bytesPerIteration;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">while</span> (length >= bufferByteSize)</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  {</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#aea8268ee42cbc98cf9be638bf77aafef">WriteKeystream</a>(m_buffer, bufferIterations);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(outString, inString, KeystreamBufferBegin(), bufferByteSize);</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  length -= bufferByteSize;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  inString += bufferByteSize;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  outString += bufferByteSize;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">if</span> (length > 0)</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  {</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  bufferByteSize = <a class="code" href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a>(length, bytesPerIteration);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  bufferIterations = bufferByteSize / bytesPerIteration;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#aea8268ee42cbc98cf9be638bf77aafef">WriteKeystream</a>(KeystreamBufferEnd()-bufferByteSize, bufferIterations);</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(outString, inString, KeystreamBufferEnd()-bufferByteSize, length);</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  m_leftOver = bufferByteSize - length;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> }</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">template</span> <<span class="keyword">class</span> S></div><div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="class_additive_cipher_template.html#a888253a4c1eaf08d38e2e3a3a663319e"> 126</a></span> <span class="keywordtype">void</span> <a class="code" href="class_additive_cipher_template.html#a888253a4c1eaf08d38e2e3a3a663319e">AdditiveCipherTemplate<S>::Resynchronize</a>(<span class="keyword">const</span> <span class="keywordtype">byte</span> *iv, <span class="keywordtype">int</span> length)</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> {</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="struct_additive_cipher_abstract_policy.html">PolicyInterface</a> &policy = this->AccessPolicy();</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  m_leftOver = 0;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  m_buffer.New(GetBufferByteSize(policy));</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#ae00639d9aeb20b7da3ac5e3a0f877fa0">CipherResynchronize</a>(m_buffer, iv, this->ThrowIfInvalidIVLength(length));</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> }</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="keyword">template</span> <<span class="keyword">class</span> BASE></div><div class="line"><a name="l00135"></a><span class="lineno"><a class="line" href="class_additive_cipher_template.html#a68d4dc2904da4df5a7ead785ad7bc67e"> 135</a></span> <span class="keywordtype">void</span> <a class="code" href="class_additive_cipher_template.html#a68d4dc2904da4df5a7ead785ad7bc67e">AdditiveCipherTemplate<BASE>::Seek</a>(lword position)</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> {</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="struct_additive_cipher_abstract_policy.html">PolicyInterface</a> &policy = this->AccessPolicy();</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bytesPerIteration = policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#a573f7abcf5929be546bddc32139bf370">GetBytesPerIteration</a>();</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#a8fce38d2b7d84732fc3efea410b82d54">SeekToIteration</a>(position / bytesPerIteration);</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  position %= bytesPerIteration;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span> (position > 0)</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  {</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  policy.<a class="code" href="struct_additive_cipher_abstract_policy.html#aea8268ee42cbc98cf9be638bf77aafef">WriteKeystream</a>(KeystreamBufferEnd()-bytesPerIteration, 1);</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  m_leftOver = bytesPerIteration - (<span class="keywordtype">unsigned</span> int)position;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  m_leftOver = 0;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> }</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="keyword">template</span> <<span class="keyword">class</span> BASE></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="keywordtype">void</span> <a class="code" href="class_c_f_b___cipher_template.html">CFB_CipherTemplate<BASE>::UncheckedSetKey</a>(<span class="keyword">const</span> <span class="keywordtype">byte</span> *key, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <span class="keyword">const</span> <a class="code" href="class_name_value_pairs.html">NameValuePairs</a> &params)</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> {</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  PolicyInterface &policy = this->AccessPolicy();</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  policy.CipherSetKey(params, key, length);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (this->IsResynchronizable())</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  {</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordtype">size_t</span> ivLength;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">const</span> <span class="keywordtype">byte</span> *iv = this->GetIVAndThrowIfInvalid(params, ivLength);</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  policy.CipherResynchronize(iv, ivLength);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  m_leftOver = policy.GetBytesPerIteration();</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> }</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="keyword">template</span> <<span class="keyword">class</span> BASE></div><div class="line"><a name="l00169"></a><span class="lineno"><a class="line" href="class_c_f_b___cipher_template.html#a8604f13ab0f11d510c8e1f28526333a0"> 169</a></span> <span class="keywordtype">void</span> <a class="code" href="class_c_f_b___cipher_template.html#a8604f13ab0f11d510c8e1f28526333a0">CFB_CipherTemplate<BASE>::Resynchronize</a>(<span class="keyword">const</span> <span class="keywordtype">byte</span> *iv, <span class="keywordtype">int</span> length)</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> {</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  PolicyInterface &policy = this->AccessPolicy();</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  policy.CipherResynchronize(iv, this->ThrowIfInvalidIVLength(length));</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  m_leftOver = policy.GetBytesPerIteration();</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> }</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="keyword">template</span> <<span class="keyword">class</span> BASE></div><div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="class_c_f_b___cipher_template.html#adf14a759fd95fd687f4e257264771f89"> 177</a></span> <span class="keywordtype">void</span> <a class="code" href="class_c_f_b___cipher_template.html#adf14a759fd95fd687f4e257264771f89">CFB_CipherTemplate<BASE>::ProcessData</a>(<span class="keywordtype">byte</span> *outString, <span class="keyword">const</span> <span class="keywordtype">byte</span> *inString, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> {</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(length % this->MandatoryBlockSize() == 0);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  PolicyInterface &policy = this->AccessPolicy();</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bytesPerIteration = policy.GetBytesPerIteration();</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> alignment = policy.GetAlignment();</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordtype">byte</span> *reg = policy.GetRegisterBegin();</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">if</span> (m_leftOver)</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  {</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordtype">size_t</span> len = <a class="code" href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a>(m_leftOver, length);</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  CombineMessageAndShiftRegister(outString, reg + bytesPerIteration - m_leftOver, inString, len);</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  m_leftOver -= len;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  length -= len;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  inString += len;</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  outString += len;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  }</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">if</span> (!length)</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(m_leftOver == 0);</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">if</span> (policy.CanIterate() && length >= bytesPerIteration && <a class="code" href="misc_8h.html#a726c3b76265182681f5d5fd173ab5676">IsAlignedOn</a>(outString, alignment))</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  {</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">if</span> (<a class="code" href="misc_8h.html#a726c3b76265182681f5d5fd173ab5676">IsAlignedOn</a>(inString, alignment))</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  policy.Iterate(outString, inString, <a class="code" href="misc_8h.html#ade22f7ed542b3db2912c917f8e3d6067">GetCipherDir</a>(*<span class="keyword">this</span>), length / bytesPerIteration);</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  {</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  memcpy(outString, inString, length);</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  policy.Iterate(outString, outString, <a class="code" href="misc_8h.html#ade22f7ed542b3db2912c917f8e3d6067">GetCipherDir</a>(*<span class="keyword">this</span>), length / bytesPerIteration);</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  }</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  inString += length - length % bytesPerIteration;</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  outString += length - length % bytesPerIteration;</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  length %= bytesPerIteration;</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">while</span> (length >= bytesPerIteration)</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  {</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  policy.TransformRegister();</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  CombineMessageAndShiftRegister(outString, reg, inString, bytesPerIteration);</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  length -= bytesPerIteration;</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  inString += bytesPerIteration;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  outString += bytesPerIteration;</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">if</span> (length > 0)</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  {</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  policy.TransformRegister();</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  CombineMessageAndShiftRegister(outString, reg, inString, length);</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  m_leftOver = bytesPerIteration - length;</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  }</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> }</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="keyword">template</span> <<span class="keyword">class</span> BASE></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="keywordtype">void</span> <a class="code" href="class_c_f_b___encryption_template.html">CFB_EncryptionTemplate<BASE>::CombineMessageAndShiftRegister</a>(<span class="keywordtype">byte</span> *output, <span class="keywordtype">byte</span> *reg, <span class="keyword">const</span> <span class="keywordtype">byte</span> *message, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> {</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <a class="code" href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a>(reg, message, length);</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  memcpy(output, reg, length);</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> }</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="keyword">template</span> <<span class="keyword">class</span> BASE></div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="keywordtype">void</span> <a class="code" href="class_c_f_b___decryption_template.html">CFB_DecryptionTemplate<BASE>::CombineMessageAndShiftRegister</a>(<span class="keywordtype">byte</span> *output, <span class="keywordtype">byte</span> *reg, <span class="keyword">const</span> <span class="keywordtype">byte</span> *message, <span class="keywordtype">size_t</span> length)</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> {</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<length; i++)</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  {</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordtype">byte</span> b = message[i];</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  output[i] = reg[i] ^ b;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  reg[i] = b;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> }</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> NAMESPACE_END</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="class_additive_cipher_template_html_a888253a4c1eaf08d38e2e3a3a663319e"><div class="ttname"><a href="class_additive_cipher_template.html#a888253a4c1eaf08d38e2e3a3a663319e">AdditiveCipherTemplate::Resynchronize</a></div><div class="ttdeci">void Resynchronize(const byte *iv, int length=-1)</div><div class="ttdoc">Resynchronize the cipher.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8cpp_source.html#l00126">strciphr.cpp:126</a></div></div>
<div class="ttc" id="struct_additive_cipher_abstract_policy_html_ae948f2e69229ba39837e498a464606d4"><div class="ttname"><a href="struct_additive_cipher_abstract_policy.html#ae948f2e69229ba39837e498a464606d4">AdditiveCipherAbstractPolicy::OperateKeystream</a></div><div class="ttdeci">virtual void OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount)</div><div class="ttdoc">Operates the keystream.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00148">strciphr.h:148</a></div></div>
<div class="ttc" id="class_c_f_b___cipher_template_html"><div class="ttname"><a href="class_c_f_b___cipher_template.html">CFB_CipherTemplate</a></div><div class="ttdoc">Base class for feedback based stream ciphers with SymmetricCipher interface.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00480">strciphr.h:480</a></div></div>
<div class="ttc" id="struct_additive_cipher_abstract_policy_html_a02d1a81c11cf52ed48a5c10357a39717"><div class="ttname"><a href="struct_additive_cipher_abstract_policy.html#a02d1a81c11cf52ed48a5c10357a39717">AdditiveCipherAbstractPolicy::CanOperateKeystream</a></div><div class="ttdeci">virtual bool CanOperateKeystream() const</div><div class="ttdoc">Flag indicating.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00138">strciphr.h:138</a></div></div>
<div class="ttc" id="struct_additive_cipher_abstract_policy_html_aea8268ee42cbc98cf9be638bf77aafef"><div class="ttname"><a href="struct_additive_cipher_abstract_policy.html#aea8268ee42cbc98cf9be638bf77aafef">AdditiveCipherAbstractPolicy::WriteKeystream</a></div><div class="ttdeci">virtual void WriteKeystream(byte *keystream, size_t iterationCount)</div><div class="ttdoc">Generate the keystream.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00132">strciphr.h:132</a></div></div>
<div class="ttc" id="class_additive_cipher_template_html_a68d4dc2904da4df5a7ead785ad7bc67e"><div class="ttname"><a href="class_additive_cipher_template.html#a68d4dc2904da4df5a7ead785ad7bc67e">AdditiveCipherTemplate::Seek</a></div><div class="ttdeci">void Seek(lword position)</div><div class="ttdoc">Seeks to a random position in the stream.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8cpp_source.html#l00135">strciphr.cpp:135</a></div></div>
<div class="ttc" id="struct_additive_cipher_abstract_policy_html"><div class="ttname"><a href="struct_additive_cipher_abstract_policy.html">AdditiveCipherAbstractPolicy</a></div><div class="ttdoc">Policy object for additive stream ciphers.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00103">strciphr.h:103</a></div></div>
<div class="ttc" id="misc_8h_html_a726c3b76265182681f5d5fd173ab5676"><div class="ttname"><a href="misc_8h.html#a726c3b76265182681f5d5fd173ab5676">IsAlignedOn</a></div><div class="ttdeci">bool IsAlignedOn(const void *ptr, unsigned int alignment)</div><div class="ttdoc">Determines whether ptr is aligned to a minimum value.</div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l01030">misc.h:1030</a></div></div>
<div class="ttc" id="class_additive_cipher_template_html_a5903c41f2e4e2aa6df44715244f2f3f3"><div class="ttname"><a href="class_additive_cipher_template.html#a5903c41f2e4e2aa6df44715244f2f3f3">AdditiveCipherTemplate::ProcessData</a></div><div class="ttdeci">void ProcessData(byte *outString, const byte *inString, size_t length)</div><div class="ttdoc">Apply keystream to data.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8cpp_source.html#l00067">strciphr.cpp:67</a></div></div>
<div class="ttc" id="class_c_f_b___decryption_template_html"><div class="ttname"><a href="class_c_f_b___decryption_template.html">CFB_DecryptionTemplate</a></div><div class="ttdoc">Base class for feedback based stream ciphers in the reverse direction with SymmetricCipher interface.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00551">strciphr.h:551</a></div></div>
<div class="ttc" id="class_c_f_b___cipher_template_html_adf14a759fd95fd687f4e257264771f89"><div class="ttname"><a href="class_c_f_b___cipher_template.html#adf14a759fd95fd687f4e257264771f89">CFB_CipherTemplate::ProcessData</a></div><div class="ttdeci">void ProcessData(byte *outString, const byte *inString, size_t length)</div><div class="ttdoc">Apply keystream to data.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8cpp_source.html#l00177">strciphr.cpp:177</a></div></div>
<div class="ttc" id="struct_additive_cipher_abstract_policy_html_a156c179304f2a5d119f74806b5b263ec"><div class="ttname"><a href="struct_additive_cipher_abstract_policy.html#a156c179304f2a5d119f74806b5b263ec">AdditiveCipherAbstractPolicy::GetAlignment</a></div><div class="ttdeci">virtual unsigned int GetAlignment() const</div><div class="ttdoc">Provides data alignment requirements.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00111">strciphr.h:111</a></div></div>
<div class="ttc" id="struct_additive_cipher_abstract_policy_html_a573f7abcf5929be546bddc32139bf370"><div class="ttname"><a href="struct_additive_cipher_abstract_policy.html#a573f7abcf5929be546bddc32139bf370">AdditiveCipherAbstractPolicy::GetBytesPerIteration</a></div><div class="ttdeci">virtual unsigned int GetBytesPerIteration() const =0</div><div class="ttdoc">Provides number of bytes operated upon during an iteration.</div></div>
<div class="ttc" id="struct_additive_cipher_abstract_policy_html_a8fce38d2b7d84732fc3efea410b82d54"><div class="ttname"><a href="struct_additive_cipher_abstract_policy.html#a8fce38d2b7d84732fc3efea410b82d54">AdditiveCipherAbstractPolicy::SeekToIteration</a></div><div class="ttdeci">virtual void SeekToIteration(lword iterationCount)</div><div class="ttdoc">Seeks to a random position in the stream.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00171">strciphr.h:171</a></div></div>
<div class="ttc" id="pch_8h_html"><div class="ttname"><a href="pch_8h.html">pch.h</a></div><div class="ttdoc">Precompiled header file.</div></div>
<div class="ttc" id="misc_8h_html_ade22f7ed542b3db2912c917f8e3d6067"><div class="ttname"><a href="misc_8h.html#ade22f7ed542b3db2912c917f8e3d6067">GetCipherDir</a></div><div class="ttdeci">CipherDir GetCipherDir(const T &obj)</div><div class="ttdoc">Returns the direction the cipher is being operated.</div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l01087">misc.h:1087</a></div></div>
<div class="ttc" id="class_c_f_b___encryption_template_html"><div class="ttname"><a href="class_c_f_b___encryption_template.html">CFB_EncryptionTemplate</a></div><div class="ttdoc">Base class for feedback based stream ciphers in the forward direction with SymmetricCipher interface.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00542">strciphr.h:542</a></div></div>
<div class="ttc" id="class_additive_cipher_template_html_aa8cfabe995c7262fc51e63d8d8269c2b"><div class="ttname"><a href="class_additive_cipher_template.html#aa8cfabe995c7262fc51e63d8d8269c2b">AdditiveCipherTemplate::GenerateBlock</a></div><div class="ttdeci">void GenerateBlock(byte *output, size_t size)</div><div class="ttdoc">Generate random array of bytes.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8cpp_source.html#l00029">strciphr.cpp:29</a></div></div>
<div class="ttc" id="misc_8h_html_abe412b0409249cb54899e97bc7d86424"><div class="ttname"><a href="misc_8h.html#abe412b0409249cb54899e97bc7d86424">STDMIN</a></div><div class="ttdeci">const T & STDMIN(const T &a, const T &b)</div><div class="ttdoc">Replacement function for std::min.</div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00507">misc.h:507</a></div></div>
<div class="ttc" id="trap_8h_html_adf3b392588bc94cbeae9f415a78c7b95"><div class="ttname"><a href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a></div><div class="ttdeci">#define CRYPTOPP_ASSERT(exp)</div><div class="ttdoc">Debugging and diagnostic assertion.</div><div class="ttdef"><b>Definition:</b> <a href="trap_8h_source.html#l00060">trap.h:60</a></div></div>
<div class="ttc" id="strciphr_8h_html"><div class="ttname"><a href="strciphr_8h.html">strciphr.h</a></div><div class="ttdoc">Classes for implementing stream ciphers.</div></div>
<div class="ttc" id="misc_8h_html_a6aaae7768600b9d735a5e1b8192035f8"><div class="ttname"><a href="misc_8h.html#a6aaae7768600b9d735a5e1b8192035f8">xorbuf</a></div><div class="ttdeci">void xorbuf(byte *buf, const byte *mask, size_t count)</div><div class="ttdoc">Performs an XOR of a buffer with a mask.</div><div class="ttdef"><b>Definition:</b> <a href="misc_8cpp_source.html#l00032">misc.cpp:32</a></div></div>
<div class="ttc" id="struct_additive_cipher_abstract_policy_html_ae00639d9aeb20b7da3ac5e3a0f877fa0"><div class="ttname"><a href="struct_additive_cipher_abstract_policy.html#ae00639d9aeb20b7da3ac5e3a0f877fa0">AdditiveCipherAbstractPolicy::CipherResynchronize</a></div><div class="ttdeci">virtual void CipherResynchronize(byte *keystreamBuffer, const byte *iv, size_t length)</div><div class="ttdoc">Resynchronize the cipher.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00161">strciphr.h:161</a></div></div>
<div class="ttc" id="misc_8h_html_a57a219d44f45272a1f3b3f17a656000a"><div class="ttname"><a href="misc_8h.html#a57a219d44f45272a1f3b3f17a656000a">RoundUpToMultipleOf</a></div><div class="ttdeci">T1 RoundUpToMultipleOf(const T1 &n, const T2 &m)</div><div class="ttdoc">Rounds a value up to a multiple of a second value.</div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00971">misc.h:971</a></div></div>
<div class="ttc" id="strciphr_8h_html_ab4a226527d2bd01ff19bfa14d0974227"><div class="ttname"><a href="strciphr_8h.html#ab4a226527d2bd01ff19bfa14d0974227">KeystreamOperation</a></div><div class="ttdeci">KeystreamOperation</div><div class="ttdoc">Keystream operation flags.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00088">strciphr.h:88</a></div></div>
<div class="ttc" id="namespace_crypto_p_p_html"><div class="ttname"><a href="namespace_crypto_p_p.html">CryptoPP</a></div><div class="ttdoc">Crypto++ library namespace.</div></div>
<div class="ttc" id="class_c_f_b___cipher_template_html_a8604f13ab0f11d510c8e1f28526333a0"><div class="ttname"><a href="class_c_f_b___cipher_template.html#a8604f13ab0f11d510c8e1f28526333a0">CFB_CipherTemplate::Resynchronize</a></div><div class="ttdeci">void Resynchronize(const byte *iv, int length=-1)</div><div class="ttdoc">Resynchronize the cipher.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8cpp_source.html#l00169">strciphr.cpp:169</a></div></div>
<div class="ttc" id="class_additive_cipher_template_html"><div class="ttname"><a href="class_additive_cipher_template.html">AdditiveCipherTemplate</a></div><div class="ttdoc">Base class for additive stream ciphers with SymmetricCipher interface.</div><div class="ttdef"><b>Definition:</b> <a href="strciphr_8h_source.html#l00261">strciphr.h:261</a></div></div>
<div class="ttc" id="class_name_value_pairs_html"><div class="ttname"><a href="class_name_value_pairs.html">NameValuePairs</a></div><div class="ttdoc">Interface for retrieving values given their names.</div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00290">cryptlib.h:290</a></div></div>
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