224-bit hash functions
For 224-bit hash functions, purpose is hashing; current status is Approved; planned status is retirement scheduled under SP 800-131A Rev 3 draft; replacement is SHA-2 or SHA-3 at 256-bit or higher output; source document is SP 800-131A Rev 3 draft, recorded from its source on 2026-08-16; source re-checked 2026-09-28.
- Algorithm
- 224-bit hash functions verified
- Purpose
- hashing our reading
- Current status
- Approved our reading
- Planned status
- retirement scheduled under SP 800-131A Rev 3 draft our reading
- Replacement
- SHA-2 or SHA-3 at 256-bit or higher output our reading
- Source document
- SP 800-131A Rev 3 draft our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
Rev. 3 proposes moving the minimum classical security strength from 112 bits to 128 bits at the end of 2030, retires ECB confidentiality mode and DSA signature generation, and schedules the retirement of SHA-1 and 224-bit hash functions.
— encryptionconsulting.com, retrieved 2026-08-16
Source
- encryptionconsulting.comhttps://www.encryptionconsulting.com/education-center/nist-ir-8547-sp-800-131a-algorithm-transitions/