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📁 著名的密码库Crypto++的文档 C++语言的杰作。程序员必备。
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<a name="l00496"></a>00496                 data += innerLoopEnd;<a name="l00497"></a>00497 <a name="l00498"></a>00498 <span class="preprocessor">                #if VMAC_BOOL_32BIT</span><a name="l00499"></a>00499 <span class="preprocessor"></span>                        word32 nh0[2],  nh1[2];<a name="l00500"></a>00500                         word64 nh2[2];<a name="l00501"></a>00501 <a name="l00502"></a>00502                         nh0[0] = word32(nhA0);<a name="l00503"></a>00503                         nhA1 += (nhA0 &gt;&gt; 32);<a name="l00504"></a>00504                         nh1[0] = word32(nhA1);<a name="l00505"></a>00505                         nh2[0] = (nhA2 + (nhA1 &gt;&gt; 32)) &amp; m62;<a name="l00506"></a>00506 <a name="l00507"></a>00507                         <span class="keywordflow">if</span> (T_128BitTag)<a name="l00508"></a>00508                         {<a name="l00509"></a>00509                                 nh0[1] = word32(nhB0);<a name="l00510"></a>00510                                 nhB1 += (nhB0 &gt;&gt; 32);<a name="l00511"></a>00511                                 nh1[1] = word32(nhB1);<a name="l00512"></a>00512                                 nh2[1] = (nhB2 + (nhB1 &gt;&gt; 32)) &amp; m62;<a name="l00513"></a>00513                         }<a name="l00514"></a>00514 <a name="l00515"></a>00515 <span class="preprocessor">                        #define a0 (((word32 *)(polyS+i*4))[2+NativeByteOrder::ToEnum()])</span><a name="l00516"></a>00516 <span class="preprocessor"></span><span class="preprocessor">                        #define a1 (((word32 *)(polyS+i*4))[3-NativeByteOrder::ToEnum()])</span><a name="l00517"></a>00517 <span class="preprocessor"></span><span class="preprocessor">                        #define a2 (((word32 *)(polyS+i*4))[0+NativeByteOrder::ToEnum()])</span><a name="l00518"></a>00518 <span class="preprocessor"></span><span class="preprocessor">                        #define a3 (((word32 *)(polyS+i*4))[1-NativeByteOrder::ToEnum()])</span><a name="l00519"></a>00519 <span class="preprocessor"></span><span class="preprocessor">                        #define aHi ((polyS+i*4)[0])</span><a name="l00520"></a>00520 <span class="preprocessor"></span><span class="preprocessor">                        #define k0 (((word32 *)(polyS+i*4+2))[2+NativeByteOrder::ToEnum()])</span><a name="l00521"></a>00521 <span class="preprocessor"></span><span class="preprocessor">                        #define k1 (((word32 *)(polyS+i*4+2))[3-NativeByteOrder::ToEnum()])</span><a name="l00522"></a>00522 <span class="preprocessor"></span><span class="preprocessor">                        #define k2 (((word32 *)(polyS+i*4+2))[0+NativeByteOrder::ToEnum()])</span><a name="l00523"></a>00523 <span class="preprocessor"></span><span class="preprocessor">                        #define k3 (((word32 *)(polyS+i*4+2))[1-NativeByteOrder::ToEnum()])</span><a name="l00524"></a>00524 <span class="preprocessor"></span><span class="preprocessor">                        #define kHi ((polyS+i*4+2)[0])</span><a name="l00525"></a>00525 <span class="preprocessor"></span><a name="l00526"></a>00526                         <span class="keywordflow">if</span> (isFirstBlock)<a name="l00527"></a>00527                         {<a name="l00528"></a>00528                                 isFirstBlock = <span class="keyword">false</span>;<a name="l00529"></a>00529                                 <span class="keywordflow">if</span> (<a class="code" href="class_v_m_a_c___base.html#cee066bf89503f32699aba376c874fce">m_isFirstBlock</a>)<a name="l00530"></a>00530                                 {<a name="l00531"></a>00531                                         <a class="code" href="class_v_m_a_c___base.html#cee066bf89503f32699aba376c874fce">m_isFirstBlock</a> = <span class="keyword">false</span>;<a name="l00532"></a>00532                                         <span class="keywordflow">for</span> (i=0; i&lt;=(size_t)T_128BitTag; i++)<a name="l00533"></a>00533                                         {<a name="l00534"></a>00534                                                 word64 t = (word64)nh0[i] + k0;<a name="l00535"></a>00535                                                 a0 = (word32)t;<a name="l00536"></a>00536                                                 t = (t &gt;&gt; 32) + nh1[i] + k1;<a name="l00537"></a>00537                                                 a1 = (word32)t;<a name="l00538"></a>00538                                                 aHi = (t &gt;&gt; 32) + nh2[i] + kHi;<a name="l00539"></a>00539                                         }<a name="l00540"></a>00540                                         <span class="keywordflow">continue</span>;<a name="l00541"></a>00541                                 }<a name="l00542"></a>00542                         }<a name="l00543"></a>00543                         <span class="keywordflow">for</span> (i=0; i&lt;=(size_t)T_128BitTag; i++)<a name="l00544"></a>00544                         {<a name="l00545"></a>00545                                 word64 p, t;<a name="l00546"></a>00546                                 word32 t2;<a name="l00547"></a>00547 <a name="l00548"></a>00548                                 p = MUL32(a3, 2*k3);<a name="l00549"></a>00549                                 p += nh2[i];<a name="l00550"></a>00550                                 p += MUL32(a0, k2);<a name="l00551"></a>00551                                 p += MUL32(a1, k1);<a name="l00552"></a>00552                                 p += MUL32(a2, k0);<a name="l00553"></a>00553                                 t2 = (word32)p;<a name="l00554"></a>00554                                 p &gt;&gt;= 32;<a name="l00555"></a>00555                                 p += MUL32(a0, k3);<a name="l00556"></a>00556                                 p += MUL32(a1, k2);<a name="l00557"></a>00557                                 p += MUL32(a2, k1);<a name="l00558"></a>00558                                 p += MUL32(a3, k0);<a name="l00559"></a>00559                                 t = (word64(word32(p) &amp; 0x7fffffff) &lt;&lt; 32) | t2;<a name="l00560"></a>00560                                 p &gt;&gt;= 31;<a name="l00561"></a>00561                                 p += nh0[i];<a name="l00562"></a>00562                                 p += MUL32(a0, k0);<a name="l00563"></a>00563                                 p += MUL32(a1, 2*k3);<a name="l00564"></a>00564                                 p += MUL32(a2, 2*k2);<a name="l00565"></a>00565                                 p += MUL32(a3, 2*k1);<a name="l00566"></a>00566                                 t2 = (word32)p;<a name="l00567"></a>00567                                 p &gt;&gt;= 32;<a name="l00568"></a>00568                                 p += nh1[i];<a name="l00569"></a>00569                                 p += MUL32(a0, k1);<a name="l00570"></a>00570                                 p += MUL32(a1, k0);<a name="l00571"></a>00571                                 p += MUL32(a2, 2*k3);<a name="l00572"></a>00572                                 p += MUL32(a3, 2*k2);<a name="l00573"></a>00573                                 a0 = t2;<a name="l00574"></a>00574                                 a1 = (word32)p;<a name="l00575"></a>00575                                 aHi = (p &gt;&gt; 32) + t;<a name="l00576"></a>00576                         }<a name="l00577"></a>00577 <a name="l00578"></a>00578 <span class="preprocessor">                        #undef a0</span><a name="l00579"></a>00579 <span class="preprocessor"></span><span class="preprocessor">                        #undef a1</span><a name="l00580"></a>00580 <span class="preprocessor"></span><span class="preprocessor">                        #undef a2</span><a name="l00581"></a>00581 <span class="preprocessor"></span><span class="preprocessor">                        #undef a3</span><a name="l00582"></a>00582 <span class="preprocessor"></span><span class="preprocessor">                        #undef aHi</span><a name="l00583"></a>00583 <span class="preprocessor"></span><span class="preprocessor">                        #undef k0</span><a name="l00584"></a>00584 <span class="preprocessor"></span><span class="preprocessor">                        #undef k1</span><a name="l00585"></a>00585 <span class="preprocessor"></span><span class="preprocessor">                        #undef k2</span><a name="l00586"></a>00586 <span class="preprocessor"></span><span class="preprocessor">                        #undef k3               </span><a name="l00587"></a>00587 <span class="preprocessor"></span><span class="preprocessor">                        #undef kHi</span><a name="l00588"></a>00588 <span class="preprocessor"></span><span class="preprocessor">                #else           // #if VMAC_BOOL_32BIT</span><a name="l00589"></a>00589 <span class="preprocessor"></span>                        <span class="keywordflow">if</span> (isFirstBlock)<a name="l00590"></a>00590                         {<a name="l00591"></a>00591                                 isFirstBlock = <span class="keyword">false</span>;<a name="l00592"></a>00592                                 <span class="keywordflow">if</span> (<a class="code" href="class_v_m_a_c___base.html#cee066bf89503f32699aba376c874fce">m_isFirstBlock</a>)<a name="l00593"></a>00593                                 {<a name="l00594"></a>00594                                         <a class="code" href="class_v_m_a_c___base.html#cee066bf89503f32699aba376c874fce">m_isFirstBlock</a> = <span class="keyword">false</span>;<a name="l00595"></a>00595 <span class="preprocessor">                                        #if VMAC_BOOL_WORD128</span><a name="l00596"></a>00596 <span class="preprocessor"></span><span class="preprocessor">                                                #define first_poly_step(a, kh, kl, m)   a = (m &amp; m126) + ((word128(kh) &lt;&lt; 64) | kl)</span><a name="l00597"></a>00597 <span class="preprocessor"></span><a name="l00598"></a>00598                                                 first_poly_step(a1, kh1, kl1, nhA);<a name="l00599"></a>00599                                                 <span class="keywordflow">if</span> (T_128BitTag)<a name="l00600"></a>00600                                                         first_poly_step(a2, kh2, kl2, nhB);<a name="l00601"></a>00601 <span class="preprocessor">                                        #else</span><a name="l00602"></a>00602 <span class="preprocessor"></span><span class="preprocessor">                                                #define first_poly_step(ah, al, kh, kl, mh, ml)         {\</span><a name="l00603"></a>00603 <span class="preprocessor">                                                        mh &amp;= m62;\</span><a name="l00604"></a>00604 <span class="preprocessor">                                                        ADD128(mh, ml, kh, kl); \</span><a name="l00605"></a>00605 <span class="preprocessor">                                                        ah = mh; al = ml;}</span><a name="l00606"></a>00606 <span class="preprocessor"></span><a name="l00607"></a>00607                                                 first_poly_step(ah1, al1, kh1, kl1, nhA1, nhA0);<a name="l00608"></a>00608                                                 <span class="keywordflow">if</span> (T_128BitTag)<a name="l00609"></a>00609                                                         first_poly_step(ah2, al2, kh2, kl2, nhB1, nhB0);<a name="l00610"></a>00610 <span class="preprocessor">                                        #endif</span><a name="l00611"></a>00611 <span class="preprocessor"></span>                                        <span class="keywordflow">continue</span>;<a name="l00612"></a>00612                                 }<a name="l00613"></a>00613                                 <span class="keywordflow">else</span><a name="l00614"></a>00614                                 {<a name="l00615"></a>00615 <span class="preprocessor">                                        #if VMAC_BOOL_WORD128</span><a name="l00616"></a>00616 <span class="preprocessor"></span>                                                a1 = (word128((polyS+0*4)[0]) &lt;&lt; 64) | (polyS+0*4)[1];<a name="l00617"></a>00617 <span class="preprocessor">                                        #else</span><a name="l00618"></a>00618 <span class="preprocessor"></span>                                                ah1=(polyS+0*4)[0]; al1=(polyS+0*4)[1];<a name="l00619"></a>00619 <span class="preprocessor">                                        #endif</span><a name="l00620"></a>00620 <span class="preprocessor"></span>                                        <span class="keywordflow">if</span> (T_128BitTag)<a name="l00621"></a>00621                                         {<a name="l00622"></a>00622 <span class="preprocessor">                                                #if VMAC_BOOL_WORD128</span><a name="l00623"></a>0

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