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<a href="https://gitlab.com/dueno">Daiki Ueno</a>
started a new discussion
on <a href="https://gitlab.com/gnutls/gnutls/merge_requests/711#note_90794268">lib/handshake-tls13.c</a>:
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<td class="diff-line-num new new_line" data-linenumber="407" 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">
407
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<pre style="margin: 0;">+<span id="LC407" class="line" lang="c"> <span class="n" style="color: #333;">IMED_RET</span><span class="p">(</span><span class="s" style="color: #d14;">"generate app keys"</span><span class="p">,</span> <span class="n" style="color: #333;">ret</span><span class="p">,</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="408" 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">
408
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<pre style="margin: 0;">+<span id="LC408" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="409" 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">
409
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<pre style="margin: 0;">+<span id="LC409" 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;">_tls13_write_connection_state_init</span><span class="p">(</span><span class="n" style="color: #333;">session</span><span class="p">,</span> <span class="n" style="color: #333;">STAGE_APP</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="410" 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">
410
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<pre style="margin: 0;">+<span id="LC410" class="line" lang="c"> <span class="n" style="color: #333;">IMED_RET</span><span class="p">(</span><span class="s" style="color: #d14;">"set write app keys"</span><span class="p">,</span> <span class="n" style="color: #333;">ret</span><span class="p">,</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="411" 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">
411
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<pre style="margin: 0;">+<span id="LC411" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="412" 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">
412
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<pre style="margin: 0;">+<span id="LC412" class="line" lang="c"> <span class="n" style="color: #333;">_gnutls_handshake_log</span><span class="p">(</span><span class="s" style="color: #d14;">"HSK[%p]: switching early to application traffic keys</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span><span class="p">,</span> <span class="n" style="color: #333;">session</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="413" 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">
413
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<pre style="margin: 0;">+<span id="LC413" class="line" lang="c"> <span class="p">}</span></span>
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<td class="diff-line-num new new_line" data-linenumber="414" 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">
414
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<pre style="margin: 0;">+<span id="LC414" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="415" 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">
415
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<pre style="margin: 0;">+<span id="LC415" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* fall through */</span></span>
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<td class="diff-line-num new new_line" data-linenumber="416" 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">
416
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<pre style="margin: 0;">+<span id="LC416" class="line" lang="c"> <span class="k" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">STATE108</span><span class="p">:</span></span>
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<pre style="margin: 0;">+<span id="LC417" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">session</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">internals</span><span class="p">.</span><span class="n" style="color: #333;">resumed</span> <span class="o" style="font-weight: 600;">!=</span> <span class="n" style="color: #333;">RESUME_FALSE</span><span class="p">)</span></span>
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418
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<pre style="margin: 0;">+<span id="LC418" class="line" lang="c"> <span class="n" style="color: #333;">_gnutls_set_resumed_parameters</span><span class="p">(</span><span class="n" style="color: #333;">session</span><span class="p">);</span></span>
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<pre style="margin: 0;">+<span id="LC419" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC420" class="line" lang="c"> <span class="cm" style="color: #998; font-style: italic;">/* If we didn't request a client certificate we can send tickets now</span></span>
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<td class="diff-line-num new new_line" data-linenumber="421" 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="LC421" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;"> * and return early */</span></span>
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<pre style="margin: 0;">+<span id="LC422" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">session</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">internals</span><span class="p">.</span><span class="n" style="color: #333;">hsk_flags</span> <span class="o" style="font-weight: 600;">&</span> <span class="n" style="color: #333;">HSK_EARLY_START_USED</span><span class="p">)</span> <span class="p">{</span></span>
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<p dir="auto">So this means a ticket are sent early by default, even when <code>GNUTLS_ENABLE_EARLY_START</code> is not set. Wouldn't that cause any interoperability issue?</p>
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