Project study / Security

Published

justifycert

TLS certificate inspection CLI for certificate health validation.

A focused certificate utility aimed at fast operator-readable validation.

PythonPyPITLS

System portrait / documented flow

01 / justifycertInspect a TLS certificate, then review chain validity, SAN identity, and expiration independently.

Diagram routes and groups

Certificate inspection

  1. Host / TLS certificate
  2. Inspection

Independent validation checks

  • Chain validity
  • SAN identity
  • Expiration

Operator result

  1. Readable validation output

02 / Problem and response

Make certificate triage fast and operator-readable.

Constraint

Certificate issues are often checked across several tools when operators usually need one fast view of health and risk.

Approach

justifycert bundles certificate inspection, weak algorithm checks, SAN visibility, and validation signals into one workflow.

03 / Architecture and boundaries

One focused inspection presents separate trust, identity, and expiry checks.

TLS inspection routines designed around readable output.

Focused checks for chain validity, naming, and certificate health.

Validation Surface

The command focuses on high-signal certificate checks instead of broad configuration sprawl.

Operator Output

Readable terminal output is prioritized so issues can be triaged quickly.

  • 01

    The value of the tool comes from reducing certificate triage time, not from exposing every possible TLS detail.

04 / Package surface

A small interface, in use.

Install

pip install justifycert

Usage

justifycert example.com --check-expiry --check-san --check-chain

05 / Current state and next work

What exists, and what follows.

Published

The maintained PyPI package focuses on the certificate checks shown in its documented command interface.

Started 2024 · Last updated Maintained

Next direction

  • Add broader reporting formats and more environment-specific validation helpers.

Security tooling gets adopted faster when the output is immediately actionable.

Working lesson / justifycert