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<a href="https://gitlab.com/nmav">Nikos Mavrogiannopoulos</a>
started a new discussion
on <a href="https://gitlab.com/gnutls/gnutls/merge_requests/695#note_101419379">lib/stek.c</a>:
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<pre style="margin: 0;">+<span id="LC27" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define KEY_POS (TICKET_KEY_NAME_SIZE)</span></span>
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<pre style="margin: 0;">+<span id="LC28" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define MAC_SECRET_POS (TICKET_KEY_NAME_SIZE+TICKET_CIPHER_KEY_SIZE)</span></span>
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<pre style="margin: 0;">+<span id="LC29" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC30" class="line" lang="c"><span class="k" style="font-weight: 600;">static</span> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="nf" style="color: #900; font-weight: 600;">totp_sha3</span><span class="p">(</span><span class="n" style="color: #333;">gnutls_session_t</span> <span class="n" style="color: #333;">session</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC31" class="line" lang="c">             <span class="kt" style="color: #458; font-weight: 600;">uint64_t</span> <span class="n" style="color: #333;">t</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC32" class="line" lang="c">             <span class="k" style="font-weight: 600;">const</span> <span class="n" style="color: #333;">gnutls_datum_t</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">secret</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC33" class="line" lang="c">             <span class="kt" style="color: #458; font-weight: 600;">uint8_t</span> <span class="n" style="color: #333;">out</span><span class="p">[</span><span class="n" style="color: #333;">TICKET_MASTER_KEY_SIZE</span><span class="p">])</span></span>
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<pre style="margin: 0;">+<span id="LC34" class="line" lang="c"><span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC35" class="line" lang="c">     <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">retval</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC36" class="line" lang="c">     <span class="kt" style="color: #458; font-weight: 600;">uint8_t</span> <span class="n" style="color: #333;">t_be</span><span class="p">[</span><span class="mi" style="color: #099;">8</span><span class="p">];</span></span>
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<pre style="margin: 0;">+<span id="LC37" class="line" lang="c">     <span class="n" style="color: #333;">digest_hd_st</span> <span class="n" style="color: #333;">hd</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC38" class="line" lang="c">     <span class="cm" style="color: #998; font-style: italic;">/*</span></span>
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<pre style="margin: 0;">+<span id="LC39" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">  * We choose SHA3-512 because it outputs 64 bytes,</span></span>
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<pre style="margin: 0;">+<span id="LC40" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">  * just the same length as the ticket key.</span></span>
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<pre style="margin: 0;">+<span id="LC41" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">  */</span></span>
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<pre style="margin: 0;">+<span id="LC42" class="line" lang="c">     <span class="n" style="color: #333;">gnutls_digest_algorithm_t</span> <span class="n" style="color: #333;">algo</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">GNUTLS_DIG_SHA3_512</span><span class="p">;</span></span>
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<p dir="auto">nit: this can be a const</p>
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