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<a href="https://gitlab.com/lumag">Dmitry Eremin-Solenikov</a>
commented on a
discussion on <a href="https://gitlab.com/gnutls/gnutls/merge_requests/1119#note_243994597">tests/tls13-server-kx-neg.c</a>:
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<pre style="margin: 0;">+<span id="LC260" class="line" lang="c"> <span class="p">},</span></span>
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<td class="diff-line-num new new_line" data-linenumber="261" 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">
261
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<pre style="margin: 0;">+<span id="LC261" class="line" lang="c"> <span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="262" 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="LC262" class="line" lang="c"> <span class="p">.</span><span class="n" style="color: #333;">name</span> <span class="o" style="font-weight: 600;">=</span> <span class="s" style="color: #d14;">"TLS 1.2 server TLS 1.3 client with cred and GOST-512 cert"</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="263" 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">
263
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<pre style="margin: 0;">+<span id="LC263" class="line" lang="c"> <span class="p">.</span><span class="n" style="color: #333;">server_ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="264" 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">
264
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<pre style="margin: 0;">+<span id="LC264" class="line" lang="c"> <span class="p">.</span><span class="n" style="color: #333;">client_ret</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="265" 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="LC265" class="line" lang="c"> <span class="p">.</span><span class="n" style="color: #333;">have_cert_cred</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">1</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="266" 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="LC266" class="line" lang="c"> <span class="p">.</span><span class="n" style="color: #333;">have_gost12_512_cert</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">1</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="267" 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">
267
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<pre style="margin: 0;">+<span id="LC267" class="line" lang="c"> <span class="p">.</span><span class="n" style="color: #333;">not_on_fips</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">1</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="268" 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="LC268" class="line" lang="c"> <span class="p">.</span><span class="n" style="color: #333;">server_prio</span> <span class="o" style="font-weight: 600;">=</span> <span class="s" style="color: #d14;">"NORMAL:-KX-ALL:+VKO-GOST-12:"</span> <span class="s" style="color: #d14;">"-VERS-ALL:+VERS-TLS1.2"</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="269" 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="LC269" class="line" lang="c"> <span class="p">.</span><span class="n" style="color: #333;">client_prio</span> <span class="o" style="font-weight: 600;">=</span> <span class="s" style="color: #d14;">"NORMAL:-KX-ALL:+VKO-GOST-12:"</span><span class="n" style="color: #333;">PVERSION</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="270" 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="LC270" class="line" lang="c"> <span class="p">.</span><span class="n" style="color: #333;">exp_version</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">GNUTLS_TLS1_2</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC271" class="line" lang="c"> <span class="p">},</span></span>
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<pre style="margin: 0;">+<span id="LC272" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* Ideally for the next two test cases we should fallback to TLS 1.2 + GOST</span></span>
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<pre style="margin: 0;">+<span id="LC273" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * but this is unsuppored for now */</span></span>
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<pre style="margin: 0;">+<span id="LC274" class="line" lang="c"> <span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC275" class="line" lang="c"> <span class="p">.</span><span class="n" style="color: #333;">name</span> <span class="o" style="font-weight: 600;">=</span> <span class="s" style="color: #d14;">"TLS 1.3 server and client VKO-GOST-12 with cred and GOST-256 cert"</span><span class="p">,</span></span>
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<p dir="auto">I have been thinking about this for quite some time. Just disabling TLS1.3 if GOST ciphersuite is enabled leads to lots of failures if/once GOST is a part of default setup. For now I've just failed to create a proper list of all possible setups and 'best' outcomes. I plan to return to that while actually implementing GOST TLS 1.3 support (which will use a completely different ciphersuite).</p>
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