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Merge request
<a href="https://gitlab.com/gnutls/gnutls/merge_requests/1034">!1034</a>
was reviewed by
<a href="https://gitlab.com/nmav">Nikos Mavrogiannopoulos</a>
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<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/1034#note_185143935">lib/nettle/rnd-fips.c</a>:
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<td class="diff-line-num old_line" data-linenumber="34" 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">
34
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35
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<pre style="margin: 0;"> <span id="LC35" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#include <rnd-common.h></span></span>
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35
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<td class="diff-line-num new_line" data-linenumber="36" 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">
36
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<pre style="margin: 0;"> <span id="LC36" class="line" lang="c"></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="36" 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="37" 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">
37
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<pre style="margin: 0;">+<span id="LC37" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define ENTROPY_BLOCK_SIZE SHA256_DIGEST_SIZE</span></span>
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<p dir="auto">Should we document here why we selected the sha2 digest size?</p>
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<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/1034#note_185143939">lib/nettle/rnd-fips.c</a>:
</p>
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95
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<td class="diff-line-num new_line" data-linenumber="136" 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">
136
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<pre style="margin: 0;"> <span id="LC136" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/* Reseed a generator. */</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="96" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
96
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<td class="diff-line-num new_line old" data-linenumber="137" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC96" 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;">drbg_reseed</span><span class="p">(</span><span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">drbg_aes_ctx</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">ctx</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="97" 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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137
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<pre style="margin: 0;">+<span id="LC137" 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;">drbg_reseed</span><span class="p">(</span><span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">drbg_aes_ctx</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">ctx</span><span class="p">,</span></span>
</pre>
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<p dir="auto">is that function necessary to be separate after this rewrite?</p>
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<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/1034#note_185143944">lib/nettle/rnd-fips.c</a>:
</p>
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72
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83
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<pre style="margin: 0;"> <span id="LC83" class="line" lang="c"><span class="p">}</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="73" 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">
73
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<td class="diff-line-num new_line" data-linenumber="84" 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">
84
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<pre style="margin: 0;"> <span id="LC84" class="line" lang="c"></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="74" 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="85" 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="LC85" 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;">get_entropy</span><span class="p">(</span><span class="k" style="font-weight: 600;">struct</span> <span class="n" style="color: #333;">fips_ctx</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">fctx</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">uint8_t</span> <span class="o" style="font-weight: 600;">*</span><span class="n" style="color: #333;">buffer</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">size_t</span> <span class="n" style="color: #333;">length</span><span class="p">)</span></span>
</pre>
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<p dir="auto">Would this be reliable on a multi-threaded application? It looks to me that when called in parallel values may be overwritten.</p>
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