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<title>Crypto++: MessageAuthenticationCode Class Reference</title>
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<div id="projectname">Crypto++
 <span id="projectnumber">7.0</span>
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<div id="projectbrief">Free C++ class library of cryptographic schemes</div>
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<div class="title">MessageAuthenticationCode Class Reference</div> </div>
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<p>Interface for message authentication codes.
<a href="class_message_authentication_code.html#details">More...</a></p>
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<img id="dynsection-0-trigger" src="closed.png" alt="+"/> Inheritance diagram for MessageAuthenticationCode:</div>
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<map id="MessageAuthenticationCode_map" name="MessageAuthenticationCode_map">
<area href="class_simple_keying_interface.html" title="Interface for algorithms that take byte strings as keys." alt="SimpleKeyingInterface" shape="rect" coords="0,112,494,136"/>
<area href="class_hash_transformation.html" title="Interface for hash functions and data processing part of MACs." alt="HashTransformation" shape="rect" coords="504,112,998,136"/>
<area href="class_algorithm.html" title="Interface for all crypto algorithms." alt="Algorithm" shape="rect" coords="504,56,998,80"/>
<area href="class_clonable.html" title="Interface for cloning objects." alt="Clonable" shape="rect" coords="504,0,998,24"/>
<area href="class_authenticated_symmetric_cipher.html" title="Interface for authenticated encryption modes of operation." alt="AuthenticatedSymmetricCipher" shape="rect" coords="756,224,1250,248"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pub_types_class_simple_keying_interface"><td colspan="2" onclick="javascript:toggleInherit('pub_types_class_simple_keying_interface')"><img src="closed.png" alt="-"/> Public Types inherited from <a class="el" href="class_simple_keying_interface.html">SimpleKeyingInterface</a></td></tr>
<tr class="memitem:a88201c180fbfaa9fef2715252546ad6e inherit pub_types_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6e">IV_Requirement</a> { <br />
  <a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6ea1cc32e69fe4f385e54d9d482a2ab5a56">UNIQUE_IV</a> = 0,
<a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6ea4520c4379ee3a1aed95a36e2235ba338">RANDOM_IV</a>,
<a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6eaceff3ad4b12bcb6d7b61a5bd543a815c">UNPREDICTABLE_RANDOM_IV</a>,
<a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6eab659bf6d2c470c50c14bfbab5b2d45ab">INTERNALLY_GENERATED_IV</a>,
<br />
  <a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6eac1d24de3dedd05c28516f452d3ace417">NOT_RESYNCHRONIZABLE</a>
<br />
}</td></tr>
<tr class="memdesc:a88201c180fbfaa9fef2715252546ad6e"><td class="mdescLeft"> </td><td class="mdescRight">Secure IVs requirements as enumerated values. <a href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6e">More...</a><br /></td></tr>
<tr class="separator:a88201c180fbfaa9fef2715252546ad6e inherit pub_types_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_class_simple_keying_interface"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_simple_keying_interface')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_simple_keying_interface.html">SimpleKeyingInterface</a></td></tr>
<tr class="memitem:a2631c49dac4d5ec055c5dc88c6243578 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a2631c49dac4d5ec055c5dc88c6243578">MinKeyLength</a> () const =0</td></tr>
<tr class="memdesc:a2631c49dac4d5ec055c5dc88c6243578 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns smallest valid key length. <a href="class_simple_keying_interface.html#a2631c49dac4d5ec055c5dc88c6243578">More...</a><br /></td></tr>
<tr class="separator:a2631c49dac4d5ec055c5dc88c6243578 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae02fcb4e1f6141e728ae37612cde6fff inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ae02fcb4e1f6141e728ae37612cde6fff">MaxKeyLength</a> () const =0</td></tr>
<tr class="memdesc:ae02fcb4e1f6141e728ae37612cde6fff inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns largest valid key length. <a href="class_simple_keying_interface.html#ae02fcb4e1f6141e728ae37612cde6fff">More...</a><br /></td></tr>
<tr class="separator:ae02fcb4e1f6141e728ae37612cde6fff inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae90dfc0bdfd13e214fd46e357ef64e98 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ae90dfc0bdfd13e214fd46e357ef64e98">DefaultKeyLength</a> () const =0</td></tr>
<tr class="memdesc:ae90dfc0bdfd13e214fd46e357ef64e98 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns default key length. <a href="class_simple_keying_interface.html#ae90dfc0bdfd13e214fd46e357ef64e98">More...</a><br /></td></tr>
<tr class="separator:ae90dfc0bdfd13e214fd46e357ef64e98 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa6601819d376802e9698e815d00a5cba inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#aa6601819d376802e9698e815d00a5cba">GetValidKeyLength</a> (size_t keylength) const =0</td></tr>
<tr class="memdesc:aa6601819d376802e9698e815d00a5cba inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns a valid key length for the algorithm. <a href="class_simple_keying_interface.html#aa6601819d376802e9698e815d00a5cba">More...</a><br /></td></tr>
<tr class="separator:aa6601819d376802e9698e815d00a5cba inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a597adcc7c00b5c14fa588276efeb613d inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a597adcc7c00b5c14fa588276efeb613d">IsValidKeyLength</a> (size_t keylength) const</td></tr>
<tr class="memdesc:a597adcc7c00b5c14fa588276efeb613d inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns whether keylength is a valid key length. <a href="class_simple_keying_interface.html#a597adcc7c00b5c14fa588276efeb613d">More...</a><br /></td></tr>
<tr class="separator:a597adcc7c00b5c14fa588276efeb613d inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:adf3c29b3ef3af74788a58c7c49887fd7 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#adf3c29b3ef3af74788a58c7c49887fd7">SetKey</a> (const byte *key, size_t length, const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &params=<a class="el" href="cryptlib_8h.html#a04be65ada92ccb1e6aac0d94b4cc394b">g_nullNameValuePairs</a>)</td></tr>
<tr class="memdesc:adf3c29b3ef3af74788a58c7c49887fd7 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Sets or reset the key of this object. <a href="class_simple_keying_interface.html#adf3c29b3ef3af74788a58c7c49887fd7">More...</a><br /></td></tr>
<tr class="separator:adf3c29b3ef3af74788a58c7c49887fd7 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0401f9c67930805180964bc02ae0ac1c inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a0401f9c67930805180964bc02ae0ac1c">SetKeyWithRounds</a> (const byte *key, size_t length, int rounds)</td></tr>
<tr class="memdesc:a0401f9c67930805180964bc02ae0ac1c inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Sets or reset the key of this object. <a href="class_simple_keying_interface.html#a0401f9c67930805180964bc02ae0ac1c">More...</a><br /></td></tr>
<tr class="separator:a0401f9c67930805180964bc02ae0ac1c inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5b4e358c514fd743840967bc595a34c2 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a5b4e358c514fd743840967bc595a34c2">SetKeyWithIV</a> (const byte *key, size_t length, const byte *iv, size_t ivLength)</td></tr>
<tr class="memdesc:a5b4e358c514fd743840967bc595a34c2 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Sets or reset the key of this object. <a href="class_simple_keying_interface.html#a5b4e358c514fd743840967bc595a34c2">More...</a><br /></td></tr>
<tr class="separator:a5b4e358c514fd743840967bc595a34c2 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac25e27eaeae2e909741c07de93caef49 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ac25e27eaeae2e909741c07de93caef49">SetKeyWithIV</a> (const byte *key, size_t length, const byte *iv)</td></tr>
<tr class="memdesc:ac25e27eaeae2e909741c07de93caef49 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Sets or reset the key of this object. <a href="class_simple_keying_interface.html#ac25e27eaeae2e909741c07de93caef49">More...</a><br /></td></tr>
<tr class="separator:ac25e27eaeae2e909741c07de93caef49 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a867b535e5c4a11704d0645272e8b03f9 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6e">IV_Requirement</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a867b535e5c4a11704d0645272e8b03f9">IVRequirement</a> () const =0</td></tr>
<tr class="memdesc:a867b535e5c4a11704d0645272e8b03f9 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Minimal requirement for secure IVs. <a href="class_simple_keying_interface.html#a867b535e5c4a11704d0645272e8b03f9">More...</a><br /></td></tr>
<tr class="separator:a867b535e5c4a11704d0645272e8b03f9 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a71039112353cc70e9859ebd95037cc1a inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a71039112353cc70e9859ebd95037cc1a">IsResynchronizable</a> () const</td></tr>
<tr class="memdesc:a71039112353cc70e9859ebd95037cc1a inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the object can be resynchronized. <a href="class_simple_keying_interface.html#a71039112353cc70e9859ebd95037cc1a">More...</a><br /></td></tr>
<tr class="separator:a71039112353cc70e9859ebd95037cc1a inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa09fd0893ac8c6068e07ce30bb55c1d9 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#aa09fd0893ac8c6068e07ce30bb55c1d9">CanUseRandomIVs</a> () const</td></tr>
<tr class="memdesc:aa09fd0893ac8c6068e07ce30bb55c1d9 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the object can use random IVs. <a href="class_simple_keying_interface.html#aa09fd0893ac8c6068e07ce30bb55c1d9">More...</a><br /></td></tr>
<tr class="separator:aa09fd0893ac8c6068e07ce30bb55c1d9 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab98803e8744b73663e7e9c872eef822b inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ab98803e8744b73663e7e9c872eef822b">CanUsePredictableIVs</a> () const</td></tr>
<tr class="memdesc:ab98803e8744b73663e7e9c872eef822b inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the object can use random but possibly predictable IVs. <a href="class_simple_keying_interface.html#ab98803e8744b73663e7e9c872eef822b">More...</a><br /></td></tr>
<tr class="separator:ab98803e8744b73663e7e9c872eef822b inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afbf7065f7db5439d471d1bcc260d3bd5 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#afbf7065f7db5439d471d1bcc260d3bd5">CanUseStructuredIVs</a> () const</td></tr>
<tr class="memdesc:afbf7065f7db5439d471d1bcc260d3bd5 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the object can use structured IVs. <a href="class_simple_keying_interface.html#afbf7065f7db5439d471d1bcc260d3bd5">More...</a><br /></td></tr>
<tr class="separator:afbf7065f7db5439d471d1bcc260d3bd5 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac6da9a8d3c783014ab54a2a3ee9e676a inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ac6da9a8d3c783014ab54a2a3ee9e676a">IVSize</a> () const</td></tr>
<tr class="memdesc:ac6da9a8d3c783014ab54a2a3ee9e676a inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns length of the IV accepted by this object. <a href="class_simple_keying_interface.html#ac6da9a8d3c783014ab54a2a3ee9e676a">More...</a><br /></td></tr>
<tr class="separator:ac6da9a8d3c783014ab54a2a3ee9e676a inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af2f7dd9da3a75651615b0ccae71f34a5 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#af2f7dd9da3a75651615b0ccae71f34a5">DefaultIVLength</a> () const</td></tr>
<tr class="memdesc:af2f7dd9da3a75651615b0ccae71f34a5 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Provides the default size of an IV. <a href="class_simple_keying_interface.html#af2f7dd9da3a75651615b0ccae71f34a5">More...</a><br /></td></tr>
<tr class="separator:af2f7dd9da3a75651615b0ccae71f34a5 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab94b9751aba4f3660accb673095180c0 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ab94b9751aba4f3660accb673095180c0">MinIVLength</a> () const</td></tr>
<tr class="memdesc:ab94b9751aba4f3660accb673095180c0 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Provides the minimum size of an IV. <a href="class_simple_keying_interface.html#ab94b9751aba4f3660accb673095180c0">More...</a><br /></td></tr>
<tr class="separator:ab94b9751aba4f3660accb673095180c0 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8fc07e61d83ce9639d9b3608fb5dd8cb inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a8fc07e61d83ce9639d9b3608fb5dd8cb">MaxIVLength</a> () const</td></tr>
<tr class="memdesc:a8fc07e61d83ce9639d9b3608fb5dd8cb inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Provides the maximum size of an IV. <a href="class_simple_keying_interface.html#a8fc07e61d83ce9639d9b3608fb5dd8cb">More...</a><br /></td></tr>
<tr class="separator:a8fc07e61d83ce9639d9b3608fb5dd8cb inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae576137a46ca56005e82f1505cf3cccc inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ae576137a46ca56005e82f1505cf3cccc">Resynchronize</a> (const byte *iv, int ivLength=-1)</td></tr>
<tr class="memdesc:ae576137a46ca56005e82f1505cf3cccc inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Resynchronize with an IV. <a href="class_simple_keying_interface.html#ae576137a46ca56005e82f1505cf3cccc">More...</a><br /></td></tr>
<tr class="separator:ae576137a46ca56005e82f1505cf3cccc inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac8277d1517add6fd455ca576bee57fe2 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ac8277d1517add6fd455ca576bee57fe2">GetNextIV</a> (<a class="el" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, byte *iv)</td></tr>
<tr class="memdesc:ac8277d1517add6fd455ca576bee57fe2 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves a secure IV for the next message. <a href="class_simple_keying_interface.html#ac8277d1517add6fd455ca576bee57fe2">More...</a><br /></td></tr>
<tr class="separator:ac8277d1517add6fd455ca576bee57fe2 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_class_hash_transformation"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_hash_transformation')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_hash_transformation.html">HashTransformation</a></td></tr>
<tr class="memitem:a39b0a4c4cdc11fda358f9975b5e4137e inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_hash_transformation.html">HashTransformation</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a39b0a4c4cdc11fda358f9975b5e4137e">Ref</a> ()</td></tr>
<tr class="memdesc:a39b0a4c4cdc11fda358f9975b5e4137e inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides a reference to this object. <a href="class_hash_transformation.html#a39b0a4c4cdc11fda358f9975b5e4137e">More...</a><br /></td></tr>
<tr class="separator:a39b0a4c4cdc11fda358f9975b5e4137e inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aafabefaf445b65d3ba0d8e1c0294afe5 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#aafabefaf445b65d3ba0d8e1c0294afe5">Update</a> (const byte *input, size_t length)=0</td></tr>
<tr class="memdesc:aafabefaf445b65d3ba0d8e1c0294afe5 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Updates a hash with additional input. <a href="class_hash_transformation.html#aafabefaf445b65d3ba0d8e1c0294afe5">More...</a><br /></td></tr>
<tr class="separator:aafabefaf445b65d3ba0d8e1c0294afe5 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9fc0b332ef36900ca6ea5d949e95aba1 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual byte * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a9fc0b332ef36900ca6ea5d949e95aba1">CreateUpdateSpace</a> (size_t &size)</td></tr>
<tr class="memdesc:a9fc0b332ef36900ca6ea5d949e95aba1 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Request space which can be written into by the caller. <a href="class_hash_transformation.html#a9fc0b332ef36900ca6ea5d949e95aba1">More...</a><br /></td></tr>
<tr class="separator:a9fc0b332ef36900ca6ea5d949e95aba1 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa0b8c7a110d8968268fd02ec32b9a8e8 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#aa0b8c7a110d8968268fd02ec32b9a8e8">Final</a> (byte *digest)</td></tr>
<tr class="memdesc:aa0b8c7a110d8968268fd02ec32b9a8e8 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Computes the hash of the current message. <a href="class_hash_transformation.html#aa0b8c7a110d8968268fd02ec32b9a8e8">More...</a><br /></td></tr>
<tr class="separator:aa0b8c7a110d8968268fd02ec32b9a8e8 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a92752eebac10497211d7a065faba8725 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a92752eebac10497211d7a065faba8725">Restart</a> ()</td></tr>
<tr class="memdesc:a92752eebac10497211d7a065faba8725 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Restart the hash. <a href="class_hash_transformation.html#a92752eebac10497211d7a065faba8725">More...</a><br /></td></tr>
<tr class="separator:a92752eebac10497211d7a065faba8725 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9f42cc280bac76b884ad12615c0dabb5 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a9f42cc280bac76b884ad12615c0dabb5">DigestSize</a> () const =0</td></tr>
<tr class="memdesc:a9f42cc280bac76b884ad12615c0dabb5 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides the digest size of the hash. <a href="class_hash_transformation.html#a9f42cc280bac76b884ad12615c0dabb5">More...</a><br /></td></tr>
<tr class="separator:a9f42cc280bac76b884ad12615c0dabb5 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af68588a8333e11066a0da91506cebbb4 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#af68588a8333e11066a0da91506cebbb4">TagSize</a> () const</td></tr>
<tr class="memdesc:af68588a8333e11066a0da91506cebbb4 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides the tag size of the hash. <a href="class_hash_transformation.html#af68588a8333e11066a0da91506cebbb4">More...</a><br /></td></tr>
<tr class="separator:af68588a8333e11066a0da91506cebbb4 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a09c66b86bbe3c13ea9e8d74775696d42 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a09c66b86bbe3c13ea9e8d74775696d42">BlockSize</a> () const</td></tr>
<tr class="memdesc:a09c66b86bbe3c13ea9e8d74775696d42 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides the block size of the compression function. <a href="class_hash_transformation.html#a09c66b86bbe3c13ea9e8d74775696d42">More...</a><br /></td></tr>
<tr class="separator:a09c66b86bbe3c13ea9e8d74775696d42 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aee97908d965930ee454f7a88b0ff0f71 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#aee97908d965930ee454f7a88b0ff0f71">OptimalBlockSize</a> () const</td></tr>
<tr class="memdesc:aee97908d965930ee454f7a88b0ff0f71 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides the input block size most efficient for this hash. <a href="class_hash_transformation.html#aee97908d965930ee454f7a88b0ff0f71">More...</a><br /></td></tr>
<tr class="separator:aee97908d965930ee454f7a88b0ff0f71 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a927a808007503246a745a564ad451da5 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a927a808007503246a745a564ad451da5">OptimalDataAlignment</a> () const</td></tr>
<tr class="memdesc:a927a808007503246a745a564ad451da5 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides input and output data alignment for optimal performance. <a href="class_hash_transformation.html#a927a808007503246a745a564ad451da5">More...</a><br /></td></tr>
<tr class="separator:a927a808007503246a745a564ad451da5 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af8124c4fca23b74bbdc43660bdae692c inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#af8124c4fca23b74bbdc43660bdae692c">CalculateDigest</a> (byte *digest, const byte *input, size_t length)</td></tr>
<tr class="memdesc:af8124c4fca23b74bbdc43660bdae692c inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Updates the hash with additional input and computes the hash of the current message. <a href="class_hash_transformation.html#af8124c4fca23b74bbdc43660bdae692c">More...</a><br /></td></tr>
<tr class="separator:af8124c4fca23b74bbdc43660bdae692c inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a16c4aecd047015d513feef4ed5b929ba inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a16c4aecd047015d513feef4ed5b929ba">Verify</a> (const byte *digest)</td></tr>
<tr class="memdesc:a16c4aecd047015d513feef4ed5b929ba inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Verifies the hash of the current message. <a href="class_hash_transformation.html#a16c4aecd047015d513feef4ed5b929ba">More...</a><br /></td></tr>
<tr class="separator:a16c4aecd047015d513feef4ed5b929ba inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:acad96df68e70d922683e5063057130b2 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#acad96df68e70d922683e5063057130b2">VerifyDigest</a> (const byte *digest, const byte *input, size_t length)</td></tr>
<tr class="memdesc:acad96df68e70d922683e5063057130b2 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Updates the hash with additional input and verifies the hash of the current message. <a href="class_hash_transformation.html#acad96df68e70d922683e5063057130b2">More...</a><br /></td></tr>
<tr class="separator:acad96df68e70d922683e5063057130b2 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a590ecda344aa0fb045abf42ec08823b2 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a590ecda344aa0fb045abf42ec08823b2">TruncatedFinal</a> (byte *digest, size_t digestSize)=0</td></tr>
<tr class="memdesc:a590ecda344aa0fb045abf42ec08823b2 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Computes the hash of the current message. <a href="class_hash_transformation.html#a590ecda344aa0fb045abf42ec08823b2">More...</a><br /></td></tr>
<tr class="separator:a590ecda344aa0fb045abf42ec08823b2 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0b6917657eaec935750fd83e28270d76 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a0b6917657eaec935750fd83e28270d76">CalculateTruncatedDigest</a> (byte *digest, size_t digestSize, const byte *input, size_t length)</td></tr>
<tr class="memdesc:a0b6917657eaec935750fd83e28270d76 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Updates the hash with additional input and computes the hash of the current message. <a href="class_hash_transformation.html#a0b6917657eaec935750fd83e28270d76">More...</a><br /></td></tr>
<tr class="separator:a0b6917657eaec935750fd83e28270d76 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0f6069eadf492d970c3eb8cdf656e742 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a0f6069eadf492d970c3eb8cdf656e742">TruncatedVerify</a> (const byte *digest, size_t digestLength)</td></tr>
<tr class="memdesc:a0f6069eadf492d970c3eb8cdf656e742 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Verifies the hash of the current message. <a href="class_hash_transformation.html#a0f6069eadf492d970c3eb8cdf656e742">More...</a><br /></td></tr>
<tr class="separator:a0f6069eadf492d970c3eb8cdf656e742 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7958e99717019e8b9f91672bdfe9e086 inherit pub_methods_class_hash_transformation"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a7958e99717019e8b9f91672bdfe9e086">VerifyTruncatedDigest</a> (const byte *digest, size_t digestLength, const byte *input, size_t length)</td></tr>
<tr class="memdesc:a7958e99717019e8b9f91672bdfe9e086 inherit pub_methods_class_hash_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Updates the hash with additional input and verifies the hash of the current message. <a href="class_hash_transformation.html#a7958e99717019e8b9f91672bdfe9e086">More...</a><br /></td></tr>
<tr class="separator:a7958e99717019e8b9f91672bdfe9e086 inherit pub_methods_class_hash_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_class_algorithm"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_algorithm')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_algorithm.html">Algorithm</a></td></tr>
<tr class="memitem:a1c77f5117ca2cd881baf26a364cfc606 inherit pub_methods_class_algorithm"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_algorithm.html#a1c77f5117ca2cd881baf26a364cfc606">Algorithm</a> (bool checkSelfTestStatus=true)</td></tr>
<tr class="memdesc:a1c77f5117ca2cd881baf26a364cfc606 inherit pub_methods_class_algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Interface for all crypto algorithms. <a href="class_algorithm.html#a1c77f5117ca2cd881baf26a364cfc606">More...</a><br /></td></tr>
<tr class="separator:a1c77f5117ca2cd881baf26a364cfc606 inherit pub_methods_class_algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4f31510a192d1121856efe8ad0a9b844 inherit pub_methods_class_algorithm"><td class="memItemLeft" align="right" valign="top">virtual std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="class_algorithm.html#a4f31510a192d1121856efe8ad0a9b844">AlgorithmName</a> () const</td></tr>
<tr class="memdesc:a4f31510a192d1121856efe8ad0a9b844 inherit pub_methods_class_algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Provides the name of this algorithm. <a href="class_algorithm.html#a4f31510a192d1121856efe8ad0a9b844">More...</a><br /></td></tr>
<tr class="separator:a4f31510a192d1121856efe8ad0a9b844 inherit pub_methods_class_algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_class_clonable"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_clonable')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_clonable.html">Clonable</a></td></tr>
<tr class="memitem:ad0016ba2d505c23aa85aad49e6c19bb7 inherit pub_methods_class_clonable"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_clonable.html">Clonable</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_clonable.html#ad0016ba2d505c23aa85aad49e6c19bb7">Clone</a> () const</td></tr>
<tr class="memdesc:ad0016ba2d505c23aa85aad49e6c19bb7 inherit pub_methods_class_clonable"><td class="mdescLeft"> </td><td class="mdescRight">Copies this object. <a href="class_clonable.html#ad0016ba2d505c23aa85aad49e6c19bb7">More...</a><br /></td></tr>
<tr class="separator:ad0016ba2d505c23aa85aad49e6c19bb7 inherit pub_methods_class_clonable"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Interface for message authentication codes. </p>
<p>These objects usually should not be used directly. See <a class="el" href="class_hash_transformation.html" title="Interface for hash functions and data processing part of MACs.">HashTransformation</a> for more details. </p>
<p class="definition">Definition at line <a class="el" href="cryptlib_8h_source.html#l01245">1245</a> of file <a class="el" href="cryptlib_8h_source.html">cryptlib.h</a>.</p>
</div><hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="cryptlib_8h_source.html">cryptlib.h</a></li>
</ul>
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