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<p>holds intermediate key data needed to improve performance
<a href="structgcm__key__data.html#details">More...</a></p>
<p><code>#include <<a class="el" href="intel-ipsec-mb_8h_source.html">intel-ipsec-mb.h</a>></code></p>
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Data Fields</h2></td></tr>
<tr class="memitem:aa5bda4f55b8393be151cfe28a9dc1ca9" id="r_aa5bda4f55b8393be151cfe28a9dc1ca9"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structgcm__key__data.html#aa5bda4f55b8393be151cfe28a9dc1ca9">expanded_keys</a> [<a class="el" href="intel-ipsec-mb_8h.html#a0c6f54ab6663187fa401c766a981a41e">IMB_GCM_ENC_KEY_LEN</a> *<a class="el" href="intel-ipsec-mb_8h.html#a73715b8c1ba918ce6d5c21749841b47b">IMB_GCM_KEY_SETS</a>]</td></tr>
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<tr class="memitem:af5adb4225d569050207cfcfe00fe273a" id="r_af5adb4225d569050207cfcfe00fe273a"><td class="memItemLeft" >union { </td><td class="memItemRight" valign="bottom"></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a59cb7987a697909bab91b9f820c8ed49" id="r_a59cb7987a697909bab91b9f820c8ed49"><td class="memItemLeft" >   struct { </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:a29d30478dd6ef9fc8e752d9219e1ef3f" id="r_a29d30478dd6ef9fc8e752d9219e1ef3f"><td class="memItemLeft" >      uint8_t   <a class="el" href="structgcm__key__data.html#ad37184ad391a2cd4b694b9f59ebdee62">shifted_hkey</a> [<a class="el" href="intel-ipsec-mb_8h.html#a0c6f54ab6663187fa401c766a981a41e">IMB_GCM_ENC_KEY_LEN</a> *8] </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:a659b494f215e7798c485c4aff0901e13" id="r_a659b494f215e7798c485c4aff0901e13"><td class="memItemLeft" >      uint8_t   <a class="el" href="structgcm__key__data.html#a570a82f076ceb5da6719d1a554584820">shifted_hkey_k</a> [<a class="el" href="intel-ipsec-mb_8h.html#a0c6f54ab6663187fa401c766a981a41e">IMB_GCM_ENC_KEY_LEN</a> *8] </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:a59cb7987a697909bab91b9f820c8ed49" id="r_a59cb7987a697909bab91b9f820c8ed49"><td class="memItemLeft" valign="top">   }   <a class="el" href="structgcm__key__data.html#a908988e25607cd3e092bfcea9964deb1">sse_avx</a> </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:a5ffb5d0506035ce484d72be7b11f007f" id="r_a5ffb5d0506035ce484d72be7b11f007f"><td class="memItemLeft" >   struct { </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:af14ef2b35d436f4b081dedb04bcd8f89" id="r_af14ef2b35d436f4b081dedb04bcd8f89"><td class="memItemLeft" >      uint8_t   <a class="el" href="structgcm__key__data.html#ad37184ad391a2cd4b694b9f59ebdee62">shifted_hkey</a> [<a class="el" href="intel-ipsec-mb_8h.html#a0c6f54ab6663187fa401c766a981a41e">IMB_GCM_ENC_KEY_LEN</a> *8 *2] </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:a5ffb5d0506035ce484d72be7b11f007f" id="r_a5ffb5d0506035ce484d72be7b11f007f"><td class="memItemLeft" valign="top">   }   <a class="el" href="structgcm__key__data.html#a3f231fdc1d521cd15c111667e4aea818">avx2_avx512</a> </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:ac9f7f886acb050fb3d32cb35714d0994" id="r_ac9f7f886acb050fb3d32cb35714d0994"><td class="memItemLeft" >   struct { </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:a3cfce3d7b72b0e1dfea5368956a780ca" id="r_a3cfce3d7b72b0e1dfea5368956a780ca"><td class="memItemLeft" >      uint8_t   <a class="el" href="structgcm__key__data.html#ad37184ad391a2cd4b694b9f59ebdee62">shifted_hkey</a> [<a class="el" href="intel-ipsec-mb_8h.html#a0c6f54ab6663187fa401c766a981a41e">IMB_GCM_ENC_KEY_LEN</a> *32 *2] </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:ac9f7f886acb050fb3d32cb35714d0994" id="r_ac9f7f886acb050fb3d32cb35714d0994"><td class="memItemLeft" valign="top">   }   <a class="el" href="structgcm__key__data.html#a7ad44e105b23e41b7f79530b6370e509">vaes_avx512</a> </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:a06fca0ff8bed123ec773e38b41c97311" id="r_a06fca0ff8bed123ec773e38b41c97311"><td class="memItemLeft" >   struct { </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:a2519df26e793e816885b35e0619ddef5" id="r_a2519df26e793e816885b35e0619ddef5"><td class="memItemLeft" >      uint8_t   <a class="el" href="structgcm__key__data.html#ad37184ad391a2cd4b694b9f59ebdee62">shifted_hkey</a> [<a class="el" href="intel-ipsec-mb_8h.html#a0c6f54ab6663187fa401c766a981a41e">IMB_GCM_ENC_KEY_LEN</a> *16 *2] </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:a06fca0ff8bed123ec773e38b41c97311" id="r_a06fca0ff8bed123ec773e38b41c97311"><td class="memItemLeft" valign="top">   }   <a class="el" href="structgcm__key__data.html#aa5872415815ae6badbf3be1bde157d35">vaes_avx2</a> </td><td class="memItemRight" valign="bottom"></td></tr>
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<tr class="memitem:af5adb4225d569050207cfcfe00fe273a" id="r_af5adb4225d569050207cfcfe00fe273a"><td class="memItemLeft" valign="top">} </td><td class="memItemRight" valign="bottom"><a class="el" href="structgcm__key__data.html#af5adb4225d569050207cfcfe00fe273a">ghash_keys</a> </td><td class="memItemRight" valign="bottom"></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>holds intermediate key data needed to improve performance </p>
<p><a class="el" href="structgcm__key__data.html" title="holds intermediate key data needed to improve performance">gcm_key_data</a> hold internal key information used by gcm128, gcm192 and gcm256. </p>
</div><h2 class="groupheader">Field Documentation</h2>
<a id="a3f231fdc1d521cd15c111667e4aea818" name="a3f231fdc1d521cd15c111667e4aea818"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a3f231fdc1d521cd15c111667e4aea818">◆ </a></span>[struct]</h2>
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<td class="memname">struct { ... } gcm_key_data::avx2_avx512</td>
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<h2 class="memtitle"><span class="permalink"><a href="#aa5bda4f55b8393be151cfe28a9dc1ca9">◆ </a></span>expanded_keys</h2>
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<td class="memname">uint8_t gcm_key_data::expanded_keys[<a class="el" href="intel-ipsec-mb_8h.html#a0c6f54ab6663187fa401c766a981a41e">IMB_GCM_ENC_KEY_LEN</a> *<a class="el" href="intel-ipsec-mb_8h.html#a73715b8c1ba918ce6d5c21749841b47b">IMB_GCM_KEY_SETS</a>]</td>
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<a id="af5adb4225d569050207cfcfe00fe273a" name="af5adb4225d569050207cfcfe00fe273a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af5adb4225d569050207cfcfe00fe273a">◆ </a></span>[union]</h2>
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<td class="memname">union { ... } gcm_key_data::ghash_keys</td>
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<h2 class="memtitle"><span class="permalink"><a href="#ad37184ad391a2cd4b694b9f59ebdee62">◆ </a></span>shifted_hkey</h2>
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<td class="memname">uint8_t gcm_key_data::shifted_hkey[<a class="el" href="intel-ipsec-mb_8h.html#a0c6f54ab6663187fa401c766a981a41e">IMB_GCM_ENC_KEY_LEN</a> *16 *2]</td>
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<p>This is needed for schoolbook multiply purposes. (HashKey<<1 mod poly), (HashKey^2<<1 mod poly), ..., (Hashkey^48<<1 mod poly)</p>
<p>This is needed for schoolbook multiply purposes. (HashKey<<1 mod poly), (HashKey<<1 mod poly) x POLY, (HashKey^2<<1 mod poly), (HashKey^2<<1 mod poly) x POLY, ..., (Hashkey^8<<1 mod poly), (Hashkey^8<<1 mod poly) x POLY</p>
<p>Start with: (HashKey<<1 mod poly), (HashKey^2<<1 mod poly), ..., (Hashkey^32<<1 mod poly)</p>
<p>Followed by: (HashKey<<1 mod poly) x POLY, (HashKey^2<<1 mod poly) x POLY, ..., (Hashkey^32<<1 mod poly) x POLY</p>
<p>Start with: (HashKey<<1 mod poly), (HashKey^2<<1 mod poly), ..., (Hashkey^16<<1 mod poly)</p>
<p>Followed by: (HashKey<<1 mod poly) x POLY, (HashKey^2<<1 mod poly) x POLY, ..., (Hashkey^16<<1 mod poly) x POLY </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a570a82f076ceb5da6719d1a554584820">◆ </a></span>shifted_hkey_k</h2>
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<td class="memname">uint8_t gcm_key_data::shifted_hkey_k[<a class="el" href="intel-ipsec-mb_8h.html#a0c6f54ab6663187fa401c766a981a41e">IMB_GCM_ENC_KEY_LEN</a> *8]</td>
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<p>This is needed for Karatsuba multiply purposes. Storage for XOR of High 64 bits and low 64 bits of HashKey mod poly.</p>
<p>(HashKey<<1 mod poly), (HashKey^2<<1 mod poly), ..., (Hashkey^128<<1 mod poly) </p>
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<td class="memname">struct { ... } gcm_key_data::sse_avx</td>
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<p>< Storage for precomputed hash keys </p>
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<td class="memname">struct { ... } gcm_key_data::vaes_avx2</td>
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<td class="memname">struct { ... } gcm_key_data::vaes_avx512</td>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li><a class="el" href="intel-ipsec-mb_8h_source.html">intel-ipsec-mb.h</a></li>
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