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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: CBC_MAC_Base Class Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li class="current"><a href="classes.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="classes.html"><span>Alphabetical List</span></a></li> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul></div><h1>CBC_MAC_Base Class Reference</h1><!-- doxytag: class="CBC_MAC_Base" --><!-- doxytag: inherits="MessageAuthenticationCode" --><code>#include <<a class="el" href="cbcmac_8h-source.html">cbcmac.h</a>></code><p><p>Inheritance diagram for CBC_MAC_Base:<p><center><img src="class_c_b_c___m_a_c___base.png" usemap="#CBC_MAC_Base_map" border="0" alt=""></center><map name="CBC_MAC_Base_map"><area href="class_message_authentication_code.html" alt="MessageAuthenticationCode" shape="rect" coords="297,168,881,192"><area href="class_hash_transformation.html" alt="HashTransformation" shape="rect" coords="0,112,584,136"><area href="class_simple_keying_interface.html" alt="SimpleKeyingInterface" shape="rect" coords="594,112,1178,136"><area href="class_algorithm.html" alt="Algorithm" shape="rect" coords="0,56,584,80"><area href="class_clonable.html" alt="Clonable" shape="rect" coords="0,0,584,24"><area href="class_simple_keying_interface_impl.html" alt="SimpleKeyingInterfaceImpl< CBC_MAC_Base, CBC_MAC< T > >" shape="rect" coords="297,280,881,304"><area href="class_algorithm_impl.html" alt="AlgorithmImpl< SimpleKeyingInterfaceImpl< CBC_MAC_Base, CBC_MAC< T > >, CBC_MAC< T > >" shape="rect" coords="297,336,881,360"><area href="class_message_authentication_code_impl.html" alt="MessageAuthenticationCodeImpl< CBC_MAC_Base, CBC_MAC< T > >" shape="rect" coords="297,392,881,416"><area href="class_c_b_c___m_a_c.html" alt="CBC_MAC< T >" shape="rect" coords="297,448,881,472"></map><a href="class_c_b_c___m_a_c___base-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>_ <p><p>Definition at line <a class="el" href="cbcmac_8h-source.html#l00010">10</a> of file <a class="el" href="cbcmac_8h-source.html">cbcmac.h</a>.<table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Types</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#88201c180fbfaa9fef2715252546ad6e">IV_Requirement</a> { <br> <a class="el" href="class_simple_keying_interface.html#88201c180fbfaa9fef2715252546ad6e1cc32e69fe4f385e54d9d482a2ab5a56">UNIQUE_IV</a> = 0, <a class="el" href="class_simple_keying_interface.html#88201c180fbfaa9fef2715252546ad6e4520c4379ee3a1aed95a36e2235ba338">RANDOM_IV</a>, <a class="el" href="class_simple_keying_interface.html#88201c180fbfaa9fef2715252546ad6eceff3ad4b12bcb6d7b61a5bd543a815c">UNPREDICTABLE_RANDOM_IV</a>, <a class="el" href="class_simple_keying_interface.html#88201c180fbfaa9fef2715252546ad6eb659bf6d2c470c50c14bfbab5b2d45ab">INTERNALLY_GENERATED_IV</a>, <br> <a class="el" href="class_simple_keying_interface.html#88201c180fbfaa9fef2715252546ad6ec1d24de3dedd05c28516f452d3ace417">NOT_RESYNCHRONIZABLE</a><br> }</td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="409efc34db36b2365b94ff722e0ae102"></a><!-- doxytag: member="CBC_MAC_Base::CBC_MAC_Base" ref="409efc34db36b2365b94ff722e0ae102" args="()" --> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_b_c___m_a_c___base.html#409efc34db36b2365b94ff722e0ae102">CBC_MAC_Base</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="e20a7dda2bc350e34de851dee4ff81ea"></a><!-- doxytag: member="CBC_MAC_Base::UncheckedSetKey" ref="e20a7dda2bc350e34de851dee4ff81ea" args="(const byte *key, unsigned int length, const NameValuePairs &params)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_b_c___m_a_c___base.html#e20a7dda2bc350e34de851dee4ff81ea">UncheckedSetKey</a> (const byte *key, unsigned int length, const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &params)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f4b9ad28defd9ff98d86f0d6de2f4cf0"></a><!-- doxytag: member="CBC_MAC_Base::Update" ref="f4b9ad28defd9ff98d86f0d6de2f4cf0" args="(const byte *input, size_t length)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_b_c___m_a_c___base.html#f4b9ad28defd9ff98d86f0d6de2f4cf0">Update</a> (const byte *input, size_t length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">process more input <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="50c5a8fc6a2926485295bbe72bcfe4d8"></a><!-- doxytag: member="CBC_MAC_Base::TruncatedFinal" ref="50c5a8fc6a2926485295bbe72bcfe4d8" args="(byte *mac, size_t size)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_b_c___m_a_c___base.html#50c5a8fc6a2926485295bbe72bcfe4d8">TruncatedFinal</a> (byte *mac, size_t size)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">truncated version of <a class="el" href="class_hash_transformation.html#a0b8c7a110d8968268fd02ec32b9a8e8" title="compute hash for current message, then restart for a new message">Final()</a> <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0fec943dfb5a946b490347da855cfc89"></a><!-- doxytag: member="CBC_MAC_Base::DigestSize" ref="0fec943dfb5a946b490347da855cfc89" args="() const" -->unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_b_c___m_a_c___base.html#0fec943dfb5a946b490347da855cfc89">DigestSize</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">size of the hash returned by <a class="el" href="class_hash_transformation.html#a0b8c7a110d8968268fd02ec32b9a8e8" title="compute hash for current message, then restart for a new message">Final()</a> <br></td></tr><tr><td class="memItemLeft" nowrap 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#39b0a4c4cdc11fda358f9975b5e4137e">Ref</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">return a reference to this object, <a href="#39b0a4c4cdc11fda358f9975b5e4137e"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="9fc0b332ef36900ca6ea5d949e95aba1"></a><!-- doxytag: member="CBC_MAC_Base::CreateUpdateSpace" ref="9fc0b332ef36900ca6ea5d949e95aba1" args="(size_t &size)" -->virtual byte * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#9fc0b332ef36900ca6ea5d949e95aba1">CreateUpdateSpace</a> (size_t &size)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">request space to write input into <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#a0b8c7a110d8968268fd02ec32b9a8e8">Final</a> (byte *digest)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">compute hash for current message, then restart for a new message <a href="#a0b8c7a110d8968268fd02ec32b9a8e8"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="92752eebac10497211d7a065faba8725"></a><!-- doxytag: member="CBC_MAC_Base::Restart" ref="92752eebac10497211d7a065faba8725" args="()" -->virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#92752eebac10497211d7a065faba8725">Restart</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">discard the current state, and restart with a new message <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="09c66b86bbe3c13ea9e8d74775696d42"></a><!-- doxytag: member="CBC_MAC_Base::BlockSize" ref="09c66b86bbe3c13ea9e8d74775696d42" args="() const" -->virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#09c66b86bbe3c13ea9e8d74775696d42">BlockSize</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">block size of underlying compression function, or 0 if not block based <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ee97908d965930ee454f7a88b0ff0f71"></a><!-- doxytag: member="CBC_MAC_Base::OptimalBlockSize" ref="ee97908d965930ee454f7a88b0ff0f71" args="() const" -->virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#ee97908d965930ee454f7a88b0ff0f71">OptimalBlockSize</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">input to <a class="el" href="class_hash_transformation.html#afabefaf445b65d3ba0d8e1c0294afe5" title="process more input">Update()</a> should have length a multiple of this for optimal speed <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="15944a7b920e2c24bd1cb67d0303dd2a"></a><!-- doxytag: member="CBC_MAC_Base::OptimalDataAlignment" ref="15944a7b920e2c24bd1cb67d0303dd2a" args="() const" -->virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#15944a7b920e2c24bd1cb67d0303dd2a">OptimalDataAlignment</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns how input should be aligned for optimal performance <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f8124c4fca23b74bbdc43660bdae692c"></a><!-- doxytag: member="CBC_MAC_Base::CalculateDigest" ref="f8124c4fca23b74bbdc43660bdae692c" args="(byte *digest, const byte *input, size_t length)" -->virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#f8124c4fca23b74bbdc43660bdae692c">CalculateDigest</a> (byte *digest, const byte *input, size_t length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">use this if your input is in one piece and you don't want to call <a class="el" href="class_hash_transformation.html#afabefaf445b65d3ba0d8e1c0294afe5" title="process more input">Update()</a> and <a class="el" href="class_hash_transformation.html#a0b8c7a110d8968268fd02ec32b9a8e8" title="compute hash for current message, then restart for a new message">Final()</a> separately <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#16c4aecd047015d513feef4ed5b929ba">Verify</a> (const byte *digest)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">verify that digest is a valid digest for the current message, then reinitialize the object <a href="#16c4aecd047015d513feef4ed5b929ba"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="cad96df68e70d922683e5063057130b2"></a><!-- doxytag: member="CBC_MAC_Base::VerifyDigest" ref="cad96df68e70d922683e5063057130b2" args="(const byte *digest, const byte *input, size_t length)" -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#cad96df68e70d922683e5063057130b2">VerifyDigest</a> (const byte *digest, const byte *input, size_t length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">use this if your input is in one piece and you don't want to call <a class="el" href="class_hash_transformation.html#afabefaf445b65d3ba0d8e1c0294afe5" title="process more input">Update()</a> and <a class="el" href="class_hash_transformation.html#16c4aecd047015d513feef4ed5b929ba" title="verify that digest is a valid digest for the current message, then reinitialize the...">Verify()</a> separately <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0b6917657eaec935750fd83e28270d76"></a><!-- doxytag: member="CBC_MAC_Base::CalculateTruncatedDigest" ref="0b6917657eaec935750fd83e28270d76" args="(byte *digest, size_t digestSize, const byte *input, size_t length)" -->virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#0b6917657eaec935750fd83e28270d76">CalculateTruncatedDigest</a> (byte *digest, size_t digestSize, const byte *input, size_t length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">truncated version of <a class="el" href="class_hash_transformation.html#f8124c4fca23b74bbdc43660bdae692c" title="use this if your input is in one piece and you don't want to call Update() and Final()...">CalculateDigest()</a> <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0f6069eadf492d970c3eb8cdf656e742"></a><!-- doxytag: member="CBC_MAC_Base::TruncatedVerify" ref="0f6069eadf492d970c3eb8cdf656e742" args="(const byte *digest, size_t digestLength)" -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#0f6069eadf492d970c3eb8cdf656e742">TruncatedVerify</a> (const byte *digest, size_t digestLength)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">truncated version of <a class="el" href="class_hash_transformation.html#16c4aecd047015d513feef4ed5b929ba" title="verify that digest is a valid digest for the current message, then reinitialize the...">Verify()</a> <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="7958e99717019e8b9f91672bdfe9e086"></a><!-- doxytag: member="CBC_MAC_Base::VerifyTruncatedDigest" ref="7958e99717019e8b9f91672bdfe9e086" args="(const byte *digest, size_t digestLength, const byte *input, size_t length)" -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_hash_transformation.html#7958e99717019e8b9f91672bdfe9e086">VerifyTruncatedDigest</a> (const byte *digest, size_t digestLength, const byte *input, size_t length)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">truncated version of <a class="el" href="class_hash_transformation.html#cad96df68e70d922683e5063057130b2" title="use this if your input is in one piece and you don't want to call Update() and Verify()...">VerifyDigest()</a> <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="4f31510a192d1121856efe8ad0a9b844"></a><!-- doxytag: member="CBC_MAC_Base::AlgorithmName" ref="4f31510a192d1121856efe8ad0a9b844" args="() const" -->virtual std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="class_algorithm.html#4f31510a192d1121856efe8ad0a9b844">AlgorithmName</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns name of this algorithm, not universally implemented yet <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="d0016ba2d505c23aa85aad49e6c19bb7"></a><!-- doxytag: member="CBC_MAC_Base::Clone" ref="d0016ba2d505c23aa85aad49e6c19bb7" args="() const" -->virtual <a class="el" href="class_clonable.html">Clonable</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_clonable.html#d0016ba2d505c23aa85aad49e6c19bb7">Clone</a> () const</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">this is not implemented by most classes yet <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="b9e027a141d40929fef51343064d1a69"></a><!-- doxytag: member="CBC_MAC_Base::MinKeyLength" ref="b9e027a141d40929fef51343064d1a69" args="() const=0" -->virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#b9e027a141d40929fef51343064d1a69">MinKeyLength</a> () const=0</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns smallest valid key length in bytes */ <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="99ebc91e778d51d8481c4c4e8403508b"></a><!-- doxytag: member="CBC_MAC_Base::MaxKeyLength" ref="99ebc91e778d51d8481c4c4e8403508b" args="() const=0" -->virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#99ebc91e778d51d8481c4c4e8403508b">MaxKeyLength</a> () const=0</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns largest valid key length in bytes */ <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f900bd0bce7f925cfe8c6002b828d810"></a><!-- doxytag: member="CBC_MAC_Base::DefaultKeyLength" ref="f900bd0bce7f925cfe8c6002b828d810" args="() const=0" -->virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#f900bd0bce7f925cfe8c6002b828d810">DefaultKeyLength</a> () const=0</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns default (recommended) key length in bytes */ <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="d4fb24fe36b6396c361d83dcc8c647f0"></a><!-- doxytag: member="CBC_MAC_Base::GetValidKeyLength" ref="d4fb24fe36b6396c361d83dcc8c647f0" args="(size_t n) const=0" -->virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#d4fb24fe36b6396c361d83dcc8c647f0">GetValidKeyLength</a> (size_t n) const=0</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">returns the smallest valid key length in bytes that is >= min(n, GetMaxKeyLength()) <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="2229cdb9d7ac7e2cf3b02b39ae59ad77"></a><!-- doxytag: member="CBC_MAC_Base::IsValidKeyLength" ref="2229cdb9d7ac7e2cf3b02b39ae59ad77" args="(size_t n) const" -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#2229cdb9d7ac7e2cf3b02b39ae59ad77">IsValidKeyLength</a> (size_t n) const</td></tr>⌨️ 快捷键说明
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