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│ computation suite │
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dev.test-jwt-expiry Calculator
Calculates optimal JWT access token expiry and refresh token rotation policy from security risk and UX impact in a software testing and quality assurance context. Short JWT expiry (15 min) reduces the window for token abuse if stolen — refresh tokens with rotation (a new refresh token issued on each use) provide security without frequent re-login.
Inputs
Access
Reference formula or conversion factor shown for context.
Refresh
Reference formula or conversion factor shown for context.
Grace
Time for one complete cycle (s). Period = 1 / frequency. A 50 Hz signal has a 20 ms period.
Results
access TTL
Access token time-to-live -- the duration before the token expires and must be refreshed. Shorter TTL reduces the window of compromise.
refresh TTL
Refresh token lifetime -- the maximum period before the user must re-authenticate. Balances security with user convenience.
access/refresh ratio
The proportional relationship between two quantities.