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<a href="https://gitlab.com/dueno" style="color: #1068bf;">Daiki Ueno</a>
commented on a
<a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1624#note_1055448801" style="color: #1068bf;">discussion</a>:
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<p dir="auto" style="color: #303030; margin: 0 0 16px;" align="initial">I think we need more details on that to decide whether API is needed. Originally we intended to:</p>
<ul dir="auto" style="text-align: initial; list-style-type: disc; margin: 0 0 16px; padding: 0;">
<li style="margin-top: 0; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">hard-disable verifying / signing with <2k RSA keys in FIPS mode</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">soft-disable <2k RSA keys through crypto-policies for more than just TLS through some future configuration file option</li>
</ul>
<p dir="auto" style="color: #303030; margin: 0 0 16px;" align="initial">Now, we are doing something like:</p>
<ul dir="auto" style="text-align: initial; list-style-type: disc; margin: 0 0 16px; padding: 0;">
<li style="margin-top: 0; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">there is no hard-disablement</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">
<code style='font-size: 90%; color: #1f1f1f; word-wrap: break-word; background-color: #f0f0f0; border-radius: 4px; margin-top: 0; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 2px 4px;'>min-rsa-size</code> option is provided to soft-disable RSA keys through crypto-policies (though it might not be mapped 1:1 to a specific crypto-policies keyword)</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">FIPS service indicator reports the usage of <2k RSA keys as non-approved in signature generation; this limitation is hard-coded in the library</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">FIPS service indicator reports the usage of <2k except 1024, 1280, 1536, 1792 RSA keys as non-approved in signature verification; this limitation is hard-coded in the library</li>
</ul>
<p dir="auto" style="color: #303030; margin: 0;" align="initial">So if we set <code style='font-size: 90%; color: #1f1f1f; word-wrap: break-word; background-color: #f0f0f0; border-radius: 4px; margin-top: 0; font-weight: inherit; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 2px 4px;'>min-rsa-size</code> to the current status quo (1K?), I suspect the requirements from both FIPS and DNSSEC might be already satisfied.</p>
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