FIPS 198-1 Keyed-Hash Message Authentication Code (HMAC) Auditor
Audits HMAC cryptographic secret key length against FIPS 198-1 minimum key size standards.
Notice: engineering verification utility. Use test or de-identified data and verify results independently before relying on them.
How it works
Standard: NIST FIPS 198-1 The Keyed-Hash Message Authentication Code (HMAC)
Formula: Verify HMAC key length in bytes >= block size / 2 (minimum 112 bits recommended)
Checks: Valid numeric HMAC key length in bytes
Calculated locally in browser memory; nothing leaves your browser.
Deterministic local-first client-side execution. Provided as-is without warranty.