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<a href="https://gitlab.com/lumag">Dmitry Baryshkov</a>
commented on a
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1200#note_302323937">lib/pkcs11_write.c</a>:
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374
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376
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<pre style="margin: 0;"> <span id="LC376" class="line" lang="c"> <span class="p">(</span><span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">a_val</span><span class="p">)</span><span class="o" style="font-weight: 600;">++</span><span class="p">;</span></span>
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375
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377
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<pre style="margin: 0;"> <span id="LC377" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC378" class="line" lang="c"> <span class="n" style="color: #333;">ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">_gnutls_x509_encode_string</span><span class="p">(</span><span class="n" style="color: #333;">ASN1_ETYPE_OCTET_STRING</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="379" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC379" class="line" lang="c"> <span class="n" style="color: #333;">pubkey</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">params</span><span class="p">.</span><span class="n" style="color: #333;">raw_pub</span><span class="p">.</span><span class="n" style="color: #333;">data</span><span class="p">,</span></span>
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380
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<pre style="margin: 0;">+<span id="LC380" class="line" lang="c"> <span class="n" style="color: #333;">pubkey</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">params</span><span class="p">.</span><span class="n" style="color: #333;">raw_pub</span><span class="p">.</span><span class="n" style="color: #333;">size</span><span class="p">,</span></span>
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381
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<pre style="margin: 0;">+<span id="LC381" class="line" lang="c"> <span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">ecpoint</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC382" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">ret</span> <span class="o" style="font-weight: 600;"><</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="p">{</span></span>
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383
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<pre style="margin: 0;">+<span id="LC383" class="line" lang="c"> <span class="n" style="color: #333;">gnutls_assert</span><span class="p">();</span></span>
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<pre style="margin: 0;">+<span id="LC384" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span> <span class="n" style="color: #333;">ret</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC385" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC386" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC387" class="line" lang="c"> <span class="n" style="color: #333;">a</span><span class="p">[</span><span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">a_val</span><span class="p">].</span><span class="n" style="color: #333;">type</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">CKA_EC_POINT</span><span class="p">;</span></span>
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<pre style="margin: 0;">-<span id="LC377" class="line" lang="c"> <span class="n" style="color: #333;">a</span><span class="p">[</span><span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">a_val</span><span class="p">].</span><span class="n" style="color: #333;">value</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left">pubkey</span></span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="n" style="color: #333;"><span class="idiff">params</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff right">raw_pub</span></span><span class="p">.</span><span class="n" style="color: #333;">data</span><span class="p">;</span></span>
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<pre style="margin: 0;">-<span id="LC378" class="line" lang="c"> <span class="n" style="color: #333;">a</span><span class="p">[</span><span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">a_val</span><span class="p">].</span><span class="n" style="color: #333;">value_len</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left">pubkey</span></span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="n" style="color: #333;"><span class="idiff">params</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff right">raw_pub</span></span><span class="p">.</span><span class="n" style="color: #333;">size</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC388" class="line" lang="c"> <span class="n" style="color: #333;">a</span><span class="p">[</span><span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">a_val</span><span class="p">].</span><span class="n" style="color: #333;">value</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left right">ecpoint</span></span><span class="p">.</span><span class="n" style="color: #333;">data</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC389" class="line" lang="c"> <span class="n" style="color: #333;">a</span><span class="p">[</span><span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">a_val</span><span class="p">].</span><span class="n" style="color: #333;">value_len</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left right">ecpoint</span></span><span class="p">.</span><span class="n" style="color: #333;">size</span><span class="p">;</span></span>
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<p dir="auto">I have tried looking into several other PKCS#11 implementations. Neither of YubiHSM2 PKCS11, OpenSC, NSS support Edwards keys for now. I'd suggest dropping a letter to authors of respective PKCS#11 spec for their comments.</p>
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