Stateful hash-based signature (HBS) schemes provide quantum-resistant digital signing for software and firmware. Standardized by NIST in SP 800-208, LMS/HSS and XMSS use one-time keys to ensure strong security. Under NSA’s CNSA 2.0, organizations are urged to adopt HBS now for code signing due to urgency, established standards, and proven cryptographic resilience ahead of future quantum threats. Download this white paper to learn more.