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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/1115#note_242092362">lib/crypto-api.c</a>:
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<td class="diff-line-num new new_line" data-linenumber="1404" 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="LC1404" class="line" lang="c"> <span class="n" style="color: #333;">hkdf_expand</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">ctx</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">nettle_hash_update_func</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">hmac_sha256_update</span><span class="p">,</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1387" 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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<td class="diff-line-num new new_line" data-linenumber="1405" 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="LC1405" class="line" lang="c"> <span class="p">(</span><span class="n" style="color: #333;">nettle_hash_digest_func</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">hmac_sha256_digest</span><span class="p">,</span> <span class="n" style="color: #333;">SHA256_DIGEST_SIZE</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1406" 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="LC1406" class="line" lang="c"> <span class="n" style="color: #333;">info_size</span><span class="p">,</span> <span class="n" style="color: #333;">info</span><span class="p">,</span> <span class="n" style="color: #333;">out_size</span><span class="p">,</span> <span class="n" style="color: #333;">out</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1407" 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="LC1407" class="line" lang="c"> <span class="k" style="font-weight: 600;">break</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1408" 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="LC1408" class="line" lang="c"> <span class="p">}</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1409" 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="LC1409" class="line" lang="c"> <span class="k" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">GNUTLS_MAC_SHA384</span><span class="p">:{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1410" 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="LC1410" class="line" lang="c"> <span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">hmac_sha384_ctx</span> <span class="n" style="color: #333;">ctx</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1411" 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="LC1411" class="line" lang="c"></span>
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<td class="diff-line-num new new_line" data-linenumber="1412" 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="LC1412" class="line" lang="c"> <span class="n" style="color: #333;">hmac_sha384_set_key</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">ctx</span><span class="p">,</span> <span class="n" style="color: #333;">SHA384_DIGEST_SIZE</span><span class="p">,</span> <span class="n" style="color: #333;">secret</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1413" 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="LC1413" class="line" lang="c"> <span class="n" style="color: #333;">hkdf_expand</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">ctx</span><span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">nettle_hash_update_func</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">hmac_sha384_update</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1414" 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="LC1414" class="line" lang="c"> <span class="p">(</span><span class="n" style="color: #333;">nettle_hash_digest_func</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span><span class="n" style="color: #333;">hmac_sha384_digest</span><span class="p">,</span> <span class="n" style="color: #333;">SHA384_DIGEST_SIZE</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1415" 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="LC1415" class="line" lang="c"> <span class="n" style="color: #333;">info_size</span><span class="p">,</span> <span class="n" style="color: #333;">info</span><span class="p">,</span> <span class="n" style="color: #333;">out_size</span><span class="p">,</span> <span class="n" style="color: #333;">out</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1416" 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="LC1416" class="line" lang="c"> <span class="k" style="font-weight: 600;">break</span><span class="p">;</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1417" 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="LC1417" class="line" lang="c"> <span class="p">}</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1418" 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="LC1418" class="line" lang="c"> <span class="nl">default:</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1419" 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="LC1419" class="line" lang="c"> <span class="k" style="font-weight: 600;">return</span> <span class="n" style="color: #333;">gnutls_assert_val</span><span class="p">(</span><span class="n" style="color: #333;">GNUTLS_E_INTERNAL_ERROR</span><span class="p">);</span></span>
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<p dir="auto">Since this is a public API, better not return an "internal error". <code>GNUTLS_E_INVALID_REQUEST</code> would be more appropriate.</p>
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