class_s_h_a256.html

Crypto++是一个非常强大的密码学库,主要是功能全

<a class="el" href="class_sec_block.html">SecBlock</a>&lt; word32 &gt;&nbsp;</td><td class="memItemRight" valign=bottom><b>m_data</b></td></tr>

<tr><td class="memItemLeft" nowrap align=right valign=top><a name="_iterated_hash_base2p1" doxytag="SHA256::m_digest"></a>
<a class="el" href="class_sec_block.html">SecBlock</a>&lt; word32 &gt;&nbsp;</td><td class="memItemRight" valign=bottom><b>m_digest</b></td></tr>

<tr><td colspan=2><br><h2>Static Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>const word32&nbsp;</td><td class="memItemRight" valign=bottom><b>K</b> [64]</td></tr>

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<hr><h2>Member Function Documentation</h2>
<a name="_x_m_a_c_c___basea13" doxytag="SHA256::Final"></a><p>
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          <td class="md" nowrap valign="top"> virtual void HashTransformation::Final </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">byte *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>digest</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [inline, virtual, inherited]</code></td>
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compute hash for current message, then restart for a new message 
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<dl compact><dt><b>Precondition:</b></dt><dd>size of digest == <a class="el" href="class_hash_transformation.html#_x_m_a_c_ca9">DigestSize()</a>. </dd></dl>

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Reimplemented in <a class="el" href="class_p_k_c_s___decorated_hash_module.html#_p_k_c_s___decorated_hash_modulea2">PKCS_DecoratedHashModule&lt; H &gt;</a>, <a class="el" href="class_signature_encoding_method_with_recovery.html#_signature_encoding_method_with_recoverya0">SignatureEncodingMethodWithRecovery</a>, and <a class="el" href="class_e_m_s_a2_decorated_hash_module.html#_e_m_s_a2_decorated_hash_modulea3">EMSA2DecoratedHashModule&lt; H &gt;</a>.
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Definition at line <a class="el" href="cryptlib_8h-source.html#l00526">526</a> of file <a class="el" href="cryptlib_8h-source.html">cryptlib.h</a>.
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Referenced by <a class="el" href="filters_8cpp-source.html#l00635">HashFilter::Put2()</a>, <a class="el" href="pubkey_8h-source.html#l00439">PK_SignerBase&lt; H &gt;::SignAndRestart()</a>, and <a class="el" href="pubkey_8h-source.html#l00449">PK_VerifierBase&lt; H &gt;::VerifyAndRestart()</a>.    </td>
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<a name="_x_m_a_c_c___basea15" doxytag="SHA256::Verify"></a><p>
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          <td class="md" nowrap valign="top"> virtual bool HashTransformation::Verify </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const byte *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>digest</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [inline, virtual, inherited]</code></td>
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verify that digest is a valid digest for the current message, then reinitialize the object 
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Default implementation is to call <a class="el" href="class_hash_transformation.html#_x_m_a_c_c___basea13">Final()</a> and do a bitwise comparison between its output and digest. 
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Reimplemented in <a class="el" href="class_signature_encoding_method_with_recovery.html#_signature_encoding_method_with_recoverya2">SignatureEncodingMethodWithRecovery</a>.
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Definition at line <a class="el" href="cryptlib_8h-source.html#l00549">549</a> of file <a class="el" href="cryptlib_8h-source.html">cryptlib.h</a>.
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Referenced by <a class="el" href="pubkey_8h-source.html#l00587">VerifierWithRecoveryTemplate&lt; TF, H &gt;::VerifyAndRestart()</a>.    </td>
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<hr><h2>Member Data Documentation</h2>
<a name="_s_h_a256t0" doxytag="SHA256::K"></a><p>
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          <td class="md" nowrap valign="top"> const word32 SHA256::K<code> [static, protected]</code>
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<b>Initial value:</b><div class="fragment"><pre> {
        0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
        0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
        0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
        0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
        0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
        0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
        0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
        0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
        0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
        0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
        0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
        0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
        0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
        0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
        0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
        0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
}
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Definition at line <a class="el" href="sha_8cpp-source.html#l00150">150</a> of file <a class="el" href="sha_8cpp-source.html">sha.cpp</a>.    </td>
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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="sha_8h-source.html">sha.h</a><li><a class="el" href="sha_8cpp-source.html">sha.cpp</a></ul>
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