# Quantum-vulnerable public-key algorithms (general) — NIST cryptographic algorithm deprecation schedule: what is approved, deprecated, and disallowed, and when

For Quantum-vulnerable public-key algorithms (general), purpose is digital signature and key establishment; current status is Approved; planned status is Deprecated after 2030, Disallowed after 2035; replacement is Post-quantum standards (FIPS 203, 204, 205); source document is IR 8547 (Initial Public Draft, November 12, 2024), recorded from its source on 2026-08-15.

- **Algorithm:** Quantum-vulnerable public-key algorithms (general)
- **Purpose:** digital signature and key establishment
- **Current status:** Approved
- **Planned status:** Deprecated after 2030, Disallowed after 2035
- **Replacement:** Post-quantum standards (FIPS 203, 204, 205)
- **Source document:** IR 8547 (Initial Public Draft, November 12, 2024)

## What the source says

> This report describes NIST’s expected approach to transitioning from quantum-vulnerable cryptographic algorithms to post-quantum digital signature algorithms and key-establishment schemes.

## Source

- https://csrc.nist.gov/pubs/ir/8547/ipd

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/).