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<a href="https://gitlab.com/stefanberger">Stefan Berger</a>
commented on a discussion
on <a href="https://gitlab.com/gnutls/gnutls/merge_requests/796#note_119780045">lib/tpm.c</a>:
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<pre style="margin: 0;"> <span id="LC318" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC319" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">attempts</span> <span class="o" style="font-weight: 600;">></span> <span class="mi" style="color: #099;">0</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC320" class="line" lang="c"> <span class="n" style="color: #333;">flags</span> <span class="o" style="font-weight: 600;">|=</span> <span class="n" style="color: #333;">GNUTLS_PIN_WRONG</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC321" class="line" lang="c"> <span class="k" style="font-weight: 600;">else</span></span>
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<p dir="auto">It probably should now be <code>attempts > 1</code>, if that's what you mean. The behavior without this patch is that <code>tpm_pin()</code> gets called after trying with the well-known SRK password first and if it fails calling <code>tpm_pin()</code> once, trying the TPM operationg, and then the flag is set when calling <code>tpm_pin()</code> again. We could also call tpm_pin() with a <code>0</code> the first time and count attempts after.</p>
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