Add LMS/XMSS and statefulness note to QS03 firmware/software signing - #1
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akanthed wants to merge 2 commits into
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Add LMS/XMSS and statefulness note to QS03 firmware/software signing#1akanthed wants to merge 2 commits into
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CNSA 2.0 approves LMS and XMSS (NIST SP 800-208) for firmware and software signing and excludes SLH-DSA from NSS use, a scope distinction QS03 didn't cover. Adds a prevention item on this plus the statefulness constraint on LMS/XMSS keys, and the two supporting references.
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CNSA 2.0 approval via SP 800-208 covers single-tree LMS/XMSS only. Without this, "LMS and XMSS" could be read as covering HSS and XMSS^MT, the multi-tree variants commonly used as library defaults for high signature counts, which are excluded from NSS use.
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CNSA 2.0 approves LMS and XMSS (NIST SP 800-208) for firmware and
software signing and excludes SLH-DSA from NSS use, a scope distinction
QS03 didn't cover. Adds a prevention item on this plus the statefulness
constraint on LMS/XMSS keys, and the two supporting references.