Standards & programs
What is NIST SP 800-208?
NIST Special Publication on stateful hash-based signatures (XMSS, LMS) - used for code-signing and firmware. QNSI supports the SLH-DSA family for these workloads.
Decision context
Why NIST SP 800-208 matters
NIST SP 800-208 covers stateful hash-based signatures such as LMS and XMSS for constrained use cases. Stateful schemes require reliable management of one-time signing state; reuse can destroy security, making backup, failover, concurrency and disaster recovery design central.
How to evaluate NIST SP 800-208
Confirm whether the workload actually uses a stateful scheme or the stateless SLH-DSA standard. For LMS or XMSS, prove state allocation, atomic updates, backup exclusion, failover and exhaustion monitoring. Do not cite SP 800-208 as evidence for an unrelated stateless-signature implementation.
Standards & programs
Standards & programs evidence boundary
Standards define algorithms, testing methods, transition expectations, or regulatory obligations; they do not automatically certify a product or deployment. Confirm the exact publication, version, scope, implementation evidence, and accountable assessment route before describing a system as compliant or validated.
FAQ
Common questions
What is NIST SP 800-208?
NIST Special Publication on stateful hash-based signatures (XMSS, LMS) - used for code-signing and firmware. QNSI supports the SLH-DSA family for these workloads.
Why does NIST SP 800-208 matter?
NIST SP 800-208 covers stateful hash-based signatures such as LMS and XMSS for constrained use cases. Stateful schemes require reliable management of one-time signing state; reuse can destroy security, making backup, failover, concurrency and disaster recovery design central.
How should NIST SP 800-208 be evaluated?
Confirm whether the workload actually uses a stateful scheme or the stateless SLH-DSA standard. For LMS or XMSS, prove state allocation, atomic updates, backup exclusion, failover and exhaustion monitoring. Do not cite SP 800-208 as evidence for an unrelated stateless-signature implementation.
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