class_polynomial_mod2.html

Crypto++是一个非常强大的密码学库,主要是功能全

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<hr><h2>Constructor &amp; Destructor Documentation</h2>
<a name="_polynomial_mod2z19_2" doxytag="PolynomialMod2::PolynomialMod2"></a><p>
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          <td class="md" nowrap valign="top"> PolynomialMod2::PolynomialMod2 </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">word&nbsp;</td>
          <td class="mdname" nowrap> <em>value</em>, </td>
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          <td class="md" nowrap>unsigned int&nbsp;</td>
          <td class="mdname" nowrap> <em>bitLength</em> = WORD_BITS</td>
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          <td class="md">)&nbsp;</td>
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convert from word 
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value should be encoded with the least significant bit as coefficient to x^0 and most significant bit as coefficient to x^(WORD_BITS-1) bitLength denotes how much memory to allocate initially
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Definition at line <a class="el" href="gf2n_8cpp-source.html#l00022">22</a> of file <a class="el" href="gf2n_8cpp-source.html">gf2n.cpp</a>.
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References <a class="el" href="secblock_8h-source.html#l00264">SecBlock&lt; word &gt;::size()</a>.    </td>
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<hr><h2>Member Function Documentation</h2>
<a name="_polynomial_mod2z21_0" doxytag="PolynomialMod2::MinEncodedSize"></a><p>
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          <td class="md" nowrap valign="top"> unsigned int PolynomialMod2::MinEncodedSize </td>
          <td class="md" valign="top">(&nbsp;</td>
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          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap> const<code> [inline]</code></td>
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minimum number of bytes to encode this polynomial 
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MinEncodedSize of 0 is 1 
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Definition at line <a class="el" href="gf2n_8h-source.html#l00077">77</a> of file <a class="el" href="gf2n_8h-source.html">gf2n.h</a>.    </td>
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<a name="_polynomial_mod2z21_1" doxytag="PolynomialMod2::Encode"></a><p>
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          <td class="md" nowrap valign="top"> unsigned int PolynomialMod2::Encode </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">byte *&nbsp;</td>
          <td class="mdname" nowrap> <em>output</em>, </td>
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          <td class="md" nowrap>unsigned int&nbsp;</td>
          <td class="mdname" nowrap> <em>outputLen</em></td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"> const</td>
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encode in big-endian format 
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if outputLen &lt; MinEncodedSize, the most significant bytes will be dropped if outputLen &gt; MinEncodedSize, the most significant bytes will be padded
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Definition at line <a class="el" href="gf2n_8cpp-source.html#l00132">132</a> of file <a class="el" href="gf2n_8cpp-source.html">gf2n.cpp</a>.
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Referenced by <a class="el" href="gf2n_8cpp-source.html#l00157">DEREncodeAsOctetString()</a>.    </td>
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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="gf2n_8h-source.html">gf2n.h</a><li><a class="el" href="gf2n_8cpp-source.html">gf2n.cpp</a></ul>
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