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<a href="https://gitlab.com/ansasaki">Anderson Sasaki</a>
commented on a
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/commit/e106439ebaba996413765e3a535b6fc9d59c00d1#note_304477131">lib/crypto-selftests-pk.c</a>:
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831
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796
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<pre style="margin: 0;"> <span id="LC796" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#ifdef ENABLE_NON_SUITEB_CURVES</span></span>
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832
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<pre style="margin: 0;">-<span id="LC832" class="line" lang="c"> <span class="n" style="color: #333;">PK_KNOWN_TEST</span><span class="p">(</span><span class="n" style="color: #333;">GNUTLS_PK_EC</span><span class="p">,</span><span class="idiff left"> </span><span class="mi" style="color: #099;"><span class="idiff">0</span></span><span class="p"><span class="idiff right">,</span></span></span>
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797
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<pre style="margin: 0;">+<span id="LC797" class="line" lang="c"> <span class="n" style="color: #333;">PK_KNOWN_TEST</span><span class="p">(</span><span class="n" style="color: #333;">GNUTLS_PK_EC</span><span class="p">,</span></span>
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833
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798
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<pre style="margin: 0;"> <span id="LC798" class="line" lang="c"> <span class="n" style="color: #333;">GNUTLS_CURVE_TO_BITS</span></span>
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<td class="diff-line-num old_line" data-linenumber="834" 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">
834
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<td class="diff-line-num new_line" data-linenumber="799" 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">
799
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<pre style="margin: 0;"> <span id="LC799" class="line" lang="c"> <span class="p">(</span><span class="n" style="color: #333;">GNUTLS_ECC_CURVE_SECP192R1</span><span class="p">),</span></span>
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<td class="diff-line-num old_line" data-linenumber="835" 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">
835
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<td class="diff-line-num new_line" data-linenumber="800" 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">
800
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<pre style="margin: 0;"> <span id="LC800" class="line" lang="c"> <span class="n" style="color: #333;">GNUTLS_DIG_SHA256</span><span class="p">,</span> <span class="n" style="color: #333;">ecdsa_secp192r1_privkey</span><span class="p">,</span></span>
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836
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<td class="diff-line-num new_line old" data-linenumber="801" 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="LC836" class="line" lang="c"> <span class="n" style="color: #333;">ecdsa_secp192r1_sig</span><span class="p">);</span></span>
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<td class="diff-line-num new old_line" data-linenumber="837" 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="801" 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">
801
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<pre style="margin: 0;">+<span id="LC801" class="line" lang="c"> <span class="n" style="color: #333;">ecdsa_secp192r1_sig</span><span class="p"><span class="idiff left">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE</span></span><span class="p">);</span></span>
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837
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802
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<pre style="margin: 0;"> <span id="LC802" class="line" lang="c"></span>
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838
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<pre style="margin: 0;">-<span id="LC838" class="line" lang="c"> <span class="n" style="color: #333;">PK_KNOWN_TEST</span><span class="p">(</span><span class="n" style="color: #333;">GNUTLS_PK_EC</span><span class="p">,</span><span class="idiff left"> </span><span class="mi" style="color: #099;"><span class="idiff">0</span></span><span class="p"><span class="idiff right">,</span></span></span>
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803
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<pre style="margin: 0;">+<span id="LC803" class="line" lang="c"> <span class="n" style="color: #333;">PK_KNOWN_TEST</span><span class="p">(</span><span class="n" style="color: #333;">GNUTLS_PK_EC</span><span class="p">,</span></span>
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839
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804
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<pre style="margin: 0;"> <span id="LC804" class="line" lang="c"> <span class="n" style="color: #333;">GNUTLS_CURVE_TO_BITS</span></span>
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<pre style="margin: 0;"> <span id="LC805" class="line" lang="c"> <span class="p">(</span><span class="n" style="color: #333;">GNUTLS_ECC_CURVE_SECP224R1</span><span class="p">),</span></span>
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841
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806
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<pre style="margin: 0;"> <span id="LC806" class="line" lang="c"> <span class="n" style="color: #333;">GNUTLS_DIG_SHA256</span><span class="p">,</span> <span class="n" style="color: #333;">ecdsa_secp224r1_privkey</span><span class="p">,</span></span>
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842
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<pre style="margin: 0;">-<span id="LC842" class="line" lang="c"> <span class="n" style="color: #333;">ecdsa_secp224r1_sig</span><span class="p">);</span></span>
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807
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<pre style="margin: 0;">+<span id="LC807" class="line" lang="c"> <span class="n" style="color: #333;">ecdsa_secp224r1_sig</span><span class="p"><span class="idiff left">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE</span></span><span class="p">);</span></span>
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<p dir="auto">I'm confused by this comment. This whole effort of using deterministic signatures during the self-test started with the objective of avoiding calling <code>getrandom()</code> during POST. In previous communication, you wrote that wouldn't be a problem to use the deterministic signatures from RFC 6979 for testing ECDSA/DSA algorithms.</p>
<p dir="auto">Note that the test also executes the pairwise-consistency test by verifying the generated signature, although the signature uses a deterministic scheme to compute k.</p>
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