224-bit hash functions
For 224-bit hash functions, purpose is hashing; current status is Acceptable; planned status is Scheduled for retirement (SP 800-131A Rev 3 draft); replacement is SHA-256 or higher; source document is SP 800-131A Rev 3 draft (via EncryptionConsulting summary), recorded from its source on 2026-08-15.
- Algorithm
- 224-bit hash functions
- Purpose
- hashing
- Current status
- Acceptable
- Planned status
- Scheduled for retirement (SP 800-131A Rev 3 draft)
- Replacement
- SHA-256 or higher
- Source document
- SP 800-131A Rev 3 draft (via EncryptionConsulting summary)
What the source says
SHA-1 and 224-bit hashes are being retired, but for classical-strength reasons unrelated to the quantum public-key transition.
— encryptionconsulting.com, retrieved 2026-08-15
Source
- encryptionconsulting.comhttps://www.encryptionconsulting.com/education-center/nist-ir-8547-sp-800-131a-algorithm-transitions/