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<a href="https://gitlab.com/dueno">Daiki Ueno</a> created an issue: <a href="https://gitlab.com/gnutls/gnutls/-/issues/1667">#1667</a>
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<p dir="auto" style="color: #3a383f; margin: 0;" align="initial"><code style='font-size: 90%; color: #18171d; word-wrap: break-word; border-radius: .25rem; background-color: #ececef; margin-top: 0; font-weight: inherit; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 0.125rem 0.25rem;'>gnutls_session_get_data*</code> and <code style='font-size: 90%; color: #18171d; word-wrap: break-word; border-radius: .25rem; background-color: #ececef; font-weight: inherit; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; font-variant-ligatures: none; white-space: pre-wrap; overflow-wrap: break-word; word-break: keep-all; padding: 0.125rem 0.25rem;'>gnutls_session_set_data*</code> currently only deal with the bare session tickets, meaning that any metadata associated with it (e.g., max_early_data_size) needs to be manually preserved (see <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1936" data-reference-type="merge_request" data-original="!1936" data-link="false" data-link-reference="false" data-merge-request="362608901" data-project="179611" data-project-path="gnutls/gnutls" data-iid="1936" data-container="body" data-placement="top" title="Improve 0-RTT handling in gnutls-serv/gnutls-cli" class="gfm gfm-merge_request">!1936</a>). As this is cumbersome and error-prone, maybe we could store the entire <a href="https://www.rfc-editor.org/rfc/rfc8446#section-4.6.1" rel="nofollow noreferrer noopener" target="_blank">NewSessionTicket</a> message instead. A tricky thing is that the format of the NST message is <a href="https://www.rfc-editor.org/rfc/rfc5077#section-3.3" rel="nofollow noreferrer noopener" target="_blank">different</a> in TLS 1.2 and TLS 1.3, maybe we could use TLS 1.3 version as it is more expressive.</p>
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