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<div class="headertitle"><div class="title">xor_cipher.cpp File Reference</div></div>
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<p><a href="../../d3/d4c/xor__cipher_8cpp_source.html">Go to the source code of this file.</a></p>
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Namespaces</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">namespace &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d4e/namespaceciphers.html">ciphers</a></td></tr>
<tr class="memitem:ciphers" id="r_ciphers"><td class="memItemLeft" align="right" valign="top">namespace &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d4e/namespaceciphers.html">ciphers</a></td></tr>
<tr class="memdesc:d6/d4e/namespaceciphers"><td class="mdescLeft">&#160;</td><td class="mdescRight">Algorithms for encryption and decryption. <br /></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">namespace &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d47/namespace_x_o_r.html">XOR</a></td></tr>
<tr class="memitem:XOR" id="r_XOR"><td class="memItemLeft" align="right" valign="top">namespace &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d47/namespace_x_o_r.html">XOR</a></td></tr>
<tr class="memdesc:d7/d47/namespace_x_o_r"><td class="mdescLeft">&#160;</td><td class="mdescRight">Functions for <a href="https://en.wikipedia.org/wiki/XOR_cipher" target="_blank">XOR cipher</a> algorithm. <br /></td></tr>
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<tr class="memitem:aeff72a463ffc580c16cc849cbbdc58ef" id="r_aeff72a463ffc580c16cc849cbbdc58ef"><td class="memItemLeft" align="right" valign="top">std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#aeff72a463ffc580c16cc849cbbdc58ef">ciphers::XOR::encrypt</a> (const std::string &amp;text, const int &amp;key)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Implementation of <a href="https://en.wikipedia.org/wiki/XOR_cipher" target="_blank">XOR cipher</a> algorithm. </p>
<p>In cryptography, the simple <a class="el" href="../../d7/d47/namespace_x_o_r.html" title="Functions for XOR cipher algorithm.">XOR</a> cipher is a type of additive cipher, an encryption algorithm that operates according to the principles:</p>
<ul>
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<li>\( (B {\oplus} A) {\oplus} B = B {\oplus} 0 = B \)</li>
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<p>where \(\oplus\) symbol denotes the exclusive disjunction (<a class="el" href="../../d7/d47/namespace_x_o_r.html" title="Functions for XOR cipher algorithm.">XOR</a>) operation. This operation is sometimes called modulus 2 addition (or subtraction, which is identical). With this logic, a string of text can be encrypted by applying the bitwise <a class="el" href="../../d7/d47/namespace_x_o_r.html" title="Functions for XOR cipher algorithm.">XOR</a> operator to every character using a given key. To decrypt the output, merely reapplying the <a class="el" href="../../d7/d47/namespace_x_o_r.html" title="Functions for XOR cipher algorithm.">XOR</a> function with the key will remove the cipher.</p>
<h3><a class="anchor" id="autotoc_md3"></a>
<h3 class="doxsection"><a class="anchor" id="autotoc_md3"></a>
Algorithm</h3>
<p>Choose the key for encryption and apply <a class="el" href="../../d7/d47/namespace_x_o_r.html" title="Functions for XOR cipher algorithm.">XOR</a> operation to each character of a string. Reapplying <a class="el" href="../../d7/d47/namespace_x_o_r.html" title="Functions for XOR cipher algorithm.">XOR</a> operation to each character of encrypted string will give original string back.</p>
<dl class="section note"><dt>Note</dt><dd>This program implements <a class="el" href="../../d7/d47/namespace_x_o_r.html" title="Functions for XOR cipher algorithm.">XOR</a> Cipher for string with ASCII characters.</dd></dl>
<dl class="section author"><dt>Author</dt><dd><a href="https://github.com/imdeep2905" target="_blank">Deep Raval</a> </dd></dl>
<p class="definition">Definition in file <a class="el" href="../../d3/d4c/xor__cipher_8cpp_source.html">xor_cipher.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6099b7e0f1793f418d2c1befca8355a4">&#9670;&#160;</a></span>decrypt()</h2>
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