# SLH-DSA (FIPS 205) — NIST cryptographic algorithm deprecation schedule: what is approved, deprecated, and disallowed, and when For SLH-DSA (FIPS 205), purpose is digital signature; current status is Approved; planned status is No change planned; replacement is N/A; source document is FIPS 205 (August 2024), recorded from its source on 2026-08-15. - **Algorithm:** SLH-DSA (FIPS 205) - **Purpose:** digital signature _(verified: appears in the quote below)_ - **Current status:** Approved - **Planned status:** No change planned - **Replacement:** N/A - **Source document:** FIPS 205 (August 2024) ## What the source says > Stateless Hash-Based Digital Signature Standard (SLH-DSA) ## Source - https://csrc.nist.gov/projects/post-quantum-cryptography Last verified: 2026-08-15. Review by: 2027-02-11. Part of [NIST cryptographic algorithm deprecation schedule: what is approved, deprecated, and disallowed, and when](https://referencesource.org/nist-cryptographic-algorithm-deprecation-schedule/).