<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html lang="en">
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<title>
GitLab
</title>
<style>img {
max-width: 100%; height: auto;
}
</style>
</head>
<body>
<div class="content">
<p style="color: #777777;">
<a href="https://gitlab.com/nmav">Nikos Mavrogiannopoulos</a>
started a new discussion
on <a href="https://gitlab.com/gnutls/gnutls/merge_requests/920#note_144296182">lib/crypto-backend.h</a>:
</p>
<table>
<tr class="line_holder" id="">
<td class="diff-line-num old_line" data-linenumber="54" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
54
</td>
<td class="diff-line-num new_line" data-linenumber="54" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
54
</td>
<td class="line_content noteable_line" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC54" class="line" lang="c"> <span class="n" style="color: #333;">gnutls_mac_output_func</span> <span class="n" style="color: #333;">output</span><span class="p">;</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="">
<td class="diff-line-num old_line" data-linenumber="55" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
55
</td>
<td class="diff-line-num new_line" data-linenumber="55" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
55
</td>
<td class="line_content noteable_line" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC55" class="line" lang="c"> <span class="n" style="color: #333;">gnutls_mac_deinit_func</span> <span class="n" style="color: #333;">deinit</span><span class="p">;</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="">
<td class="diff-line-num old_line" data-linenumber="56" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
56
</td>
<td class="diff-line-num new_line" data-linenumber="56" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
56
</td>
<td class="line_content noteable_line" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC56" class="line" lang="c"> <span class="n" style="color: #333;">gnutls_mac_fast_func</span> <span class="n" style="color: #333;">fast</span><span class="p">;</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="">
<td class="diff-line-num new old_line" data-linenumber="57" 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">
</td>
<td class="diff-line-num new new_line" data-linenumber="57" 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">
57
</td>
<td class="line_content new noteable_line" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC57" class="line" lang="c"> <span class="n" style="color: #333;">gnutls_mac_copy_func</span> <span class="n" style="color: #333;">copy</span><span class="p">;</span></span>
</pre>
</td>
</tr>
</table>
<div style="">
<p dir="auto">That's tricky because we cannot rely for it in general. The optimized ciphers in lib/accelerated do not support it, and any registered optimizations with <code>gnutls_crypto_register_cipher</code> or <code>gnutls_crypto_single_cipher_register</code>, will not work either.</p>
<p dir="auto">In the past the <code>*_cipher_register</code> functions have prevented a lot of optimizations and make fixes like <a href="https://gitlab.com/gnutls/gnutls/issues/503" data-original="#503" data-link="false" data-link-reference="false" data-project="179611" data-issue="12441051" data-reference-type="issue" data-container="body" data-placement="bottom" title="further improve the TLS1.0/1.1 decoding of CBC record ciphers" class="gfm gfm-issue has-tooltip">#503</a> hard to impossible. Maybe we should consider marking that API deprecated during 3.6.x lifetime, and make it a no-op in 3.7.0? That would allow bringing such optimizations.</p>
</div>
</div>
<div class="footer" style="margin-top: 10px;">
<p style="font-size: small; color: #777777;">
—
<br>
Reply to this email directly or <a href="https://gitlab.com/gnutls/gnutls/merge_requests/920#note_144296182">view it on GitLab</a>.
<br>
You're receiving this email because of your account on gitlab.com.
If you'd like to receive fewer emails, you can
<a href="https://gitlab.com/sent_notifications/08d3c92ea30d165b1db8f54779ddface/unsubscribe">unsubscribe</a>
from this thread or
adjust your notification settings.
<script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","action":{"@type":"ViewAction","name":"View Merge request","url":"https://gitlab.com/gnutls/gnutls/merge_requests/920#note_144296182"}}</script>
</p>
</div>
</body>
</html>