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<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Friends</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(9)"><span class="SelectionMark"> </span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(10)"><span class="SelectionMark"> </span>Pages</a></div>
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<a href="#pub-methods">Public Member Functions</a> |
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<a href="classSpeckSmall-members.html">List of all members</a> </div>
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<div class="headertitle">
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<div class="title">SpeckSmall Class Reference</div> </div>
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<p><a class="el" href="classSpeck.html" title="Speck block cipher with a 128-bit block size. ">Speck</a> block cipher with a 128-bit block size (small-memory version).
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<a href="classSpeckSmall.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="SpeckSmall_8h_source.html">SpeckSmall.h</a>></code></p>
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Inheritance diagram for SpeckSmall:</div>
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<img src="classSpeckSmall.png" usemap="#SpeckSmall_map" alt=""/>
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<area href="classSpeckTiny.html" title="Speck block cipher with a 128-bit block size (tiny-memory version). " alt="SpeckTiny" shape="rect" coords="0,56,81,80"/>
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<area href="classBlockCipher.html" title="Abstract base class for block ciphers. " alt="BlockCipher" shape="rect" coords="0,0,81,24"/>
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</map>
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</div></div>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:a0efa12c897f718a5a49cbd6f2fc6aca3"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckSmall.html#a0efa12c897f718a5a49cbd6f2fc6aca3">SpeckSmall</a> ()</td></tr>
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<tr class="memdesc:a0efa12c897f718a5a49cbd6f2fc6aca3"><td class="mdescLeft"> </td><td class="mdescRight">Constructs a small-memory <a class="el" href="classSpeck.html" title="Speck block cipher with a 128-bit block size. ">Speck</a> block cipher with no initial key. <a href="#a0efa12c897f718a5a49cbd6f2fc6aca3">More...</a><br/></td></tr>
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<tr class="separator:a0efa12c897f718a5a49cbd6f2fc6aca3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a3345df135f6530bad475d630ef6c1038"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckSmall.html#a3345df135f6530bad475d630ef6c1038">setKey</a> (const uint8_t *key, size_t len)</td></tr>
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<tr class="memdesc:a3345df135f6530bad475d630ef6c1038"><td class="mdescLeft"> </td><td class="mdescRight">Sets the key to use for future encryption and decryption operations. <a href="#a3345df135f6530bad475d630ef6c1038">More...</a><br/></td></tr>
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<tr class="separator:a3345df135f6530bad475d630ef6c1038"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:acced022717603980ecca21b3f953bf51"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckSmall.html#acced022717603980ecca21b3f953bf51">decryptBlock</a> (uint8_t *output, const uint8_t *input)</td></tr>
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<tr class="memdesc:acced022717603980ecca21b3f953bf51"><td class="mdescLeft"> </td><td class="mdescRight">Decrypts a single block using this cipher. <a href="#acced022717603980ecca21b3f953bf51">More...</a><br/></td></tr>
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<tr class="separator:acced022717603980ecca21b3f953bf51"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa93d9f0b5153425dc04e8fb8faff7513"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckSmall.html#aa93d9f0b5153425dc04e8fb8faff7513">clear</a> ()</td></tr>
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<tr class="memdesc:aa93d9f0b5153425dc04e8fb8faff7513"><td class="mdescLeft"> </td><td class="mdescRight">Clears all security-sensitive state from this block cipher. <a href="#aa93d9f0b5153425dc04e8fb8faff7513">More...</a><br/></td></tr>
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<tr class="separator:aa93d9f0b5153425dc04e8fb8faff7513"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="inherit_header pub_methods_classSpeckTiny"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classSpeckTiny')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classSpeckTiny.html">SpeckTiny</a></td></tr>
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<tr class="memitem:a2ac351443979ea9da3521e79313cc580 inherit pub_methods_classSpeckTiny"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckTiny.html#a2ac351443979ea9da3521e79313cc580">SpeckTiny</a> ()</td></tr>
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<tr class="memdesc:a2ac351443979ea9da3521e79313cc580 inherit pub_methods_classSpeckTiny"><td class="mdescLeft"> </td><td class="mdescRight">Constructs a tiny-memory <a class="el" href="classSpeck.html" title="Speck block cipher with a 128-bit block size. ">Speck</a> block cipher with no initial key. <a href="#a2ac351443979ea9da3521e79313cc580">More...</a><br/></td></tr>
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<tr class="separator:a2ac351443979ea9da3521e79313cc580 inherit pub_methods_classSpeckTiny"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af8bbd1d1124fd1c4ef1aa167625376a9 inherit pub_methods_classSpeckTiny"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckTiny.html#af8bbd1d1124fd1c4ef1aa167625376a9">blockSize</a> () const </td></tr>
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<tr class="memdesc:af8bbd1d1124fd1c4ef1aa167625376a9 inherit pub_methods_classSpeckTiny"><td class="mdescLeft"> </td><td class="mdescRight">Size of a single block processed by this cipher, in bytes. <a href="#af8bbd1d1124fd1c4ef1aa167625376a9">More...</a><br/></td></tr>
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<tr class="separator:af8bbd1d1124fd1c4ef1aa167625376a9 inherit pub_methods_classSpeckTiny"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5587909ba48776b01bbd40b339b1262e inherit pub_methods_classSpeckTiny"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckTiny.html#a5587909ba48776b01bbd40b339b1262e">keySize</a> () const </td></tr>
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<tr class="memdesc:a5587909ba48776b01bbd40b339b1262e inherit pub_methods_classSpeckTiny"><td class="mdescLeft"> </td><td class="mdescRight">Default size of the key for this block cipher, in bytes. <a href="#a5587909ba48776b01bbd40b339b1262e">More...</a><br/></td></tr>
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<tr class="separator:a5587909ba48776b01bbd40b339b1262e inherit pub_methods_classSpeckTiny"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a05180c773b9d26d3b67ff569dc86fc2d inherit pub_methods_classSpeckTiny"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckTiny.html#a05180c773b9d26d3b67ff569dc86fc2d">setKey</a> (const uint8_t *key, size_t len)</td></tr>
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<tr class="memdesc:a05180c773b9d26d3b67ff569dc86fc2d inherit pub_methods_classSpeckTiny"><td class="mdescLeft"> </td><td class="mdescRight">Sets the key to use for future encryption and decryption operations. <a href="#a05180c773b9d26d3b67ff569dc86fc2d">More...</a><br/></td></tr>
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<tr class="separator:a05180c773b9d26d3b67ff569dc86fc2d inherit pub_methods_classSpeckTiny"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5dd2cf40dc48addb6a393e78a58a07c0 inherit pub_methods_classSpeckTiny"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckTiny.html#a5dd2cf40dc48addb6a393e78a58a07c0">encryptBlock</a> (uint8_t *output, const uint8_t *input)</td></tr>
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<tr class="memdesc:a5dd2cf40dc48addb6a393e78a58a07c0 inherit pub_methods_classSpeckTiny"><td class="mdescLeft"> </td><td class="mdescRight">Encrypts a single block using this cipher. <a href="#a5dd2cf40dc48addb6a393e78a58a07c0">More...</a><br/></td></tr>
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<tr class="separator:a5dd2cf40dc48addb6a393e78a58a07c0 inherit pub_methods_classSpeckTiny"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a19e54aef7d1b3ef92e8140dd9c308c3c inherit pub_methods_classSpeckTiny"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckTiny.html#a19e54aef7d1b3ef92e8140dd9c308c3c">decryptBlock</a> (uint8_t *output, const uint8_t *input)</td></tr>
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<tr class="memdesc:a19e54aef7d1b3ef92e8140dd9c308c3c inherit pub_methods_classSpeckTiny"><td class="mdescLeft"> </td><td class="mdescRight">Decrypts a single block using this cipher. <a href="#a19e54aef7d1b3ef92e8140dd9c308c3c">More...</a><br/></td></tr>
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<tr class="separator:a19e54aef7d1b3ef92e8140dd9c308c3c inherit pub_methods_classSpeckTiny"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a303ecc2639459e47c6eeb21991d52ccf inherit pub_methods_classSpeckTiny"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classSpeckTiny.html#a303ecc2639459e47c6eeb21991d52ccf">clear</a> ()</td></tr>
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<tr class="memdesc:a303ecc2639459e47c6eeb21991d52ccf inherit pub_methods_classSpeckTiny"><td class="mdescLeft"> </td><td class="mdescRight">Clears all security-sensitive state from this block cipher. <a href="#a303ecc2639459e47c6eeb21991d52ccf">More...</a><br/></td></tr>
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<tr class="separator:a303ecc2639459e47c6eeb21991d52ccf inherit pub_methods_classSpeckTiny"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="inherit_header pub_methods_classBlockCipher"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classBlockCipher')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classBlockCipher.html">BlockCipher</a></td></tr>
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<tr class="memitem:adc3d7cba116cbea9ad017f4cded6fe2f inherit pub_methods_classBlockCipher"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="adc3d7cba116cbea9ad017f4cded6fe2f"></a>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="classBlockCipher.html#adc3d7cba116cbea9ad017f4cded6fe2f">BlockCipher</a> ()</td></tr>
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<tr class="memdesc:adc3d7cba116cbea9ad017f4cded6fe2f inherit pub_methods_classBlockCipher"><td class="mdescLeft"> </td><td class="mdescRight">Constructs a block cipher. <br/></td></tr>
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<tr class="separator:adc3d7cba116cbea9ad017f4cded6fe2f inherit pub_methods_classBlockCipher"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:acec1bc4faeaa6dda2d91bffd79a988f9 inherit pub_methods_classBlockCipher"><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classBlockCipher.html#acec1bc4faeaa6dda2d91bffd79a988f9">~BlockCipher</a> ()</td></tr>
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<tr class="memdesc:acec1bc4faeaa6dda2d91bffd79a988f9 inherit pub_methods_classBlockCipher"><td class="mdescLeft"> </td><td class="mdescRight">Destroys this block cipher object. <a href="#acec1bc4faeaa6dda2d91bffd79a988f9">More...</a><br/></td></tr>
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<tr class="separator:acec1bc4faeaa6dda2d91bffd79a988f9 inherit pub_methods_classBlockCipher"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p><a class="el" href="classSpeck.html" title="Speck block cipher with a 128-bit block size. ">Speck</a> block cipher with a 128-bit block size (small-memory version). </p>
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<p>This class differs from the <a class="el" href="classSpeck.html" title="Speck block cipher with a 128-bit block size. ">Speck</a> class in that the RAM requirements are vastly reduced. The key schedule is expanded round by round instead of being generated and stored by <a class="el" href="classSpeckSmall.html#a3345df135f6530bad475d630ef6c1038" title="Sets the key to use for future encryption and decryption operations. ">setKey()</a>. The performance of encryption and decryption is slightly less because of this.</p>
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<p>This class is useful when RAM is at a premium and reduced encryption performance is not a hindrance to the application. Even though the performance is reduced, this class is still faster than AES with equivalent key sizes.</p>
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<p>The companion <a class="el" href="classSpeckTiny.html" title="Speck block cipher with a 128-bit block size (tiny-memory version). ">SpeckTiny</a> class uses even less RAM but only supports the <a class="el" href="classSpeckTiny.html#a5dd2cf40dc48addb6a393e78a58a07c0" title="Encrypts a single block using this cipher. ">encryptBlock()</a> operation. Block cipher modes like <a class="el" href="classCTR.html" title="Implementation of the Counter (CTR) mode for 128-bit block ciphers. ">CTR</a>, <a class="el" href="classEAX.html" title="Implementation of the EAX authenticated cipher. ">EAX</a>, and <a class="el" href="classGCM.html" title="Implementation of the Galois Counter Mode (GCM). ">GCM</a> do not need the <a class="el" href="classSpeckSmall.html#acced022717603980ecca21b3f953bf51" title="Decrypts a single block using this cipher. ">decryptBlock()</a> operation, so <a class="el" href="classSpeckTiny.html" title="Speck block cipher with a 128-bit block size (tiny-memory version). ">SpeckTiny</a> may be a better option than <a class="el" href="classSpeckSmall.html" title="Speck block cipher with a 128-bit block size (small-memory version). ">SpeckSmall</a> for many applications.</p>
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<p>See the documentation for the <a class="el" href="classSpeck.html" title="Speck block cipher with a 128-bit block size. ">Speck</a> class for more information on the <a class="el" href="classSpeck.html" title="Speck block cipher with a 128-bit block size. ">Speck</a> family of block ciphers.</p>
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<p>References: <a href="https://en.wikipedia.org/wiki/Speck_%28cipher%29,">https://en.wikipedia.org/wiki/Speck_%28cipher%29,</a> <a href="http://eprint.iacr.org/2013/404">http://eprint.iacr.org/2013/404</a></p>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classSpeck.html" title="Speck block cipher with a 128-bit block size. ">Speck</a>, <a class="el" href="classSpeckTiny.html" title="Speck block cipher with a 128-bit block size (tiny-memory version). ">SpeckTiny</a> </dd></dl>
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<p>Definition at line <a class="el" href="SpeckSmall_8h_source.html#l00028">28</a> of file <a class="el" href="SpeckSmall_8h_source.html">SpeckSmall.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<a class="anchor" id="a0efa12c897f718a5a49cbd6f2fc6aca3"></a>
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<td class="memname">SpeckSmall::SpeckSmall </td>
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<td>(</td>
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<p>Constructs a small-memory <a class="el" href="classSpeck.html" title="Speck block cipher with a 128-bit block size. ">Speck</a> block cipher with no initial key. </p>
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<p>This constructor must be followed by a call to <a class="el" href="classSpeckSmall.html#a3345df135f6530bad475d630ef6c1038" title="Sets the key to use for future encryption and decryption operations. ">setKey()</a> before the block cipher can be used for encryption or decryption. </p>
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<p>Definition at line <a class="el" href="SpeckSmall_8cpp_source.html#l00085">85</a> of file <a class="el" href="SpeckSmall_8cpp_source.html">SpeckSmall.cpp</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">void SpeckSmall::clear </td>
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<td>(</td>
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<span class="mlabels"><span class="mlabel">virtual</span></span> </td>
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<p>Clears all security-sensitive state from this block cipher. </p>
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<p>Security-sensitive information includes key schedules and any temporary state that is used by <a class="el" href="classSpeckTiny.html#a5dd2cf40dc48addb6a393e78a58a07c0" title="Encrypts a single block using this cipher. ">encryptBlock()</a> or <a class="el" href="classSpeckSmall.html#acced022717603980ecca21b3f953bf51" title="Decrypts a single block using this cipher. ">decryptBlock()</a> which is stored in the object itself.</p>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classSpeckSmall.html#a3345df135f6530bad475d630ef6c1038" title="Sets the key to use for future encryption and decryption operations. ">setKey()</a>, <a class="el" href="classSpeckTiny.html#a5dd2cf40dc48addb6a393e78a58a07c0" title="Encrypts a single block using this cipher. ">encryptBlock()</a>, <a class="el" href="classSpeckSmall.html#acced022717603980ecca21b3f953bf51" title="Decrypts a single block using this cipher. ">decryptBlock()</a> </dd></dl>
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<p>Implements <a class="el" href="classBlockCipher.html#a6f27d46e9dfa7761d014d828ad5f955b">BlockCipher</a>.</p>
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<p>Definition at line <a class="el" href="SpeckSmall_8cpp_source.html#l00648">648</a> of file <a class="el" href="SpeckSmall_8cpp_source.html">SpeckSmall.cpp</a>.</p>
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<td class="memname">void SpeckSmall::decryptBlock </td>
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<td class="paramtype">uint8_t * </td>
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<td class="paramtype">const uint8_t * </td>
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<span class="mlabels"><span class="mlabel">virtual</span></span> </td>
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<p>Decrypts a single block using this cipher. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">output</td><td>The output buffer to put the plaintext into. Must be at least <a class="el" href="classSpeckTiny.html#af8bbd1d1124fd1c4ef1aa167625376a9" title="Size of a single block processed by this cipher, in bytes. ">blockSize()</a> bytes in length. </td></tr>
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<tr><td class="paramname">input</td><td>The input buffer to read the ciphertext from which is allowed to overlap with <em>output</em>. Must be at least <a class="el" href="classSpeckTiny.html#af8bbd1d1124fd1c4ef1aa167625376a9" title="Size of a single block processed by this cipher, in bytes. ">blockSize()</a> bytes in length.</td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classSpeckTiny.html#a5dd2cf40dc48addb6a393e78a58a07c0" title="Encrypts a single block using this cipher. ">encryptBlock()</a>, <a class="el" href="classSpeckTiny.html#af8bbd1d1124fd1c4ef1aa167625376a9" title="Size of a single block processed by this cipher, in bytes. ">blockSize()</a> </dd></dl>
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<p>Implements <a class="el" href="classBlockCipher.html#ac3ba2450222aa1ea804ae4881ab6440c">BlockCipher</a>.</p>
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<p>Definition at line <a class="el" href="SpeckSmall_8cpp_source.html#l00261">261</a> of file <a class="el" href="SpeckSmall_8cpp_source.html">SpeckSmall.cpp</a>.</p>
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<td class="memname">bool SpeckSmall::setKey </td>
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<p>Sets the key to use for future encryption and decryption operations. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">key</td><td>The key to use. </td></tr>
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<tr><td class="paramname">len</td><td>The length of the key. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>Returns false if the key length is not supported, or the key is somehow "weak" and unusable by this cipher.</dd></dl>
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<p>Use <a class="el" href="classSpeckSmall.html#aa93d9f0b5153425dc04e8fb8faff7513" title="Clears all security-sensitive state from this block cipher. ">clear()</a> or the destructor to remove the key and any other sensitive data from the object once encryption or decryption is complete.</p>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="classSpeckTiny.html#a5587909ba48776b01bbd40b339b1262e" title="Default size of the key for this block cipher, in bytes. ">keySize()</a>, <a class="el" href="classSpeckSmall.html#aa93d9f0b5153425dc04e8fb8faff7513" title="Clears all security-sensitive state from this block cipher. ">clear()</a> </dd></dl>
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<p>Implements <a class="el" href="classBlockCipher.html#a9a05307664469777592799c8f77397c4">BlockCipher</a>.</p>
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<p>Definition at line <a class="el" href="SpeckSmall_8cpp_source.html#l00094">94</a> of file <a class="el" href="SpeckSmall_8cpp_source.html">SpeckSmall.cpp</a>.</p>
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<hr/>The documentation for this class was generated from the following files:<ul>
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<li><a class="el" href="SpeckSmall_8h_source.html">SpeckSmall.h</a></li>
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<li><a class="el" href="SpeckSmall_8cpp_source.html">SpeckSmall.cpp</a></li>
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