I support adoption of the draft. SLH-DSA is intended to be leveraged in 3GPP deployments, particularly for long-lived connections. While it increases the size of the TLS 1.3 handshake, the impact on connection performance is minimal in the context of long-lived connections with large data transfers.
Cheers, -Tiru On Tue, 15 Jul 2025 at 03:37, Sean Turner <s...@sn3rd.com> wrote: > We kicked off an adoption call for Use of SLH-DSA in TLS 1.3; see [0]. We > called consensus [1], and that decision was appealed. We have reviewed the > messages and agree that we need to redo the adoption call to get more input. > > What appears to be the most common concern, which we will take from Panos' > email, is that "SLH-DSA sigs are too large and slow for general use in TLS > 1.3 applications". One way to address this concern is to add an > applicablity statement to address this point. We would like to propose that > this (or something close to this) be added to the I-D: > > Applications that use SLH-DSA need to be aware that the signatures sizes > are large; the signature sizes for the cipher suites specified herein range > from 7,856 to 49,856 bytes. Likewise, the cipher suites are considered > slow. While these costs might be amoritized over the cost of a long lived > connection, the cipher suites specified herein are not considered for > general use in TLS 1.3. > > With this addition in mind, we would like to start another WG adoption > call for draft-reddy-tls-slhdsa. If you support adoption with the above > text (or something similar) and are willing to review and contribute text, > please send a message to the list. If you do not support adoption of this > draft with the above text (or something similar), please send a message to > the list and indicate why. This call will close at 2359 UTC on 28 July 2025. > > Cheers, > Deirdre, Joe, and Sean > > [0] https://mailarchive.ietf.org/arch/msg/tls/o4KnXjI-OpuHPcB33e8e78rACb0/ > [1] https://mailarchive.ietf.org/arch/msg/tls/hhLtBBctK5em6l82m7rgM6_hefo/ > [2] https://datatracker.ietf.org/doc/draft-reddy-tls-slhdsa/ > _______________________________________________ > TLS mailing list -- tls@ietf.org > To unsubscribe send an email to tls-le...@ietf.org >
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