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Open TSA — Free European RFC 3161 Timestamp Authority. - 4-tier CA hierarchy via setup-ca.sh (Root → TSA Root → Intermediate → Signing) - Node.js service (service.js): RFC 3161 endpoint, health, info, stats, /now, Prometheus metrics, rate limiting, audit log, admin endpoints - All identities and paths configurable via environment variables - Documented in README, including reverse-proxy setup and operating notes MIT licensed. See https://open-tsa.eu for the live service.
76 lines
4.4 KiB
Text
76 lines
4.4 KiB
Text
# ──────────────────────────────────────────────────────────────
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# Open TSA — Configuration Example
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# ──────────────────────────────────────────────────────────────
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# Copy this file to `.env` and adjust for your installation.
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# Never commit the actual `.env` to version control.
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# ──────────────────────────────────────────────────────────────
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# ── Service binding ─────────────────────────────────────────
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# The service listens on TSA_HOST:TSA_PORT.
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# Default is localhost only — nginx/Apache reverse-proxies from
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# the public interface. Do not bind to 0.0.0.0 in production.
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TSA_HOST=127.0.0.1
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TSA_PORT=3700
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# ── Public-facing URL ───────────────────────────────────────
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# Used in logs, health-check responses, and error messages.
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# Should match the public HTTPS URL of your reverse proxy.
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TSA_PUBLIC_URL=https://tsr.example.org
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# ── CA hierarchy paths ──────────────────────────────────────
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# Directory containing the 4-tier CA created by setup-ca.sh.
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# The service only needs read access to the TSA signing tier.
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CA_DIR=/opt/open-tsa/ca
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TSA_CONFIG=/opt/open-tsa/ca/tsa/openssl-tsa.cnf
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# ── TSA policy OID ──────────────────────────────────────────
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# Your own enterprise OID (allocated by IANA) or a sub-OID under
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# an existing one. Must be present in your TSA certificate's
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# `certificatePolicies` extension. Do NOT reuse another
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# project's OID in production.
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TSA_POLICY_OID=1.3.6.1.4.1.59085.1.1
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# ── Operational parameters ──────────────────────────────────
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# Maximum size of an incoming TimeStampRequest in bytes.
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# Real-world TSQ payloads are 200–500 bytes. 64 KiB is generous.
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MAX_REQUEST_SIZE=65536
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# Rate limit per source IP per minute (0 = disabled).
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RATE_LIMIT_PER_MINUTE=60
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# ── Logging ─────────────────────────────────────────────────
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# Levels: error, warn, info, debug
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LOG_LEVEL=info
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# Log destination: stdout (recommended with systemd/journald)
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# or absolute path to log file.
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LOG_DESTINATION=stdout
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# ── Audit log ───────────────────────────────────────────────
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# Path to the append-only audit log of issued tokens.
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# One JSON line per timestamp with: timestamp, serial, hash,
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# client IP, response size. Used for transparency reporting.
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AUDIT_LOG=/var/log/open-tsa/audit.jsonl
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# ── Metrics endpoint ────────────────────────────────────────
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# Prometheus-compatible metrics on /metrics. Bound to TSA_HOST.
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# Disable in environments where this would be exposed publicly.
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METRICS_ENABLED=true
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# ── Health endpoint ─────────────────────────────────────────
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# Path of the health-check endpoint. Returns 200 + JSON with
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# version, openssl version, and current load.
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HEALTH_PATH=/health
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# ── OpenSSL binary ──────────────────────────────────────────
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# Path to the OpenSSL 3.x binary. Leave as `openssl` to use the
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# system default; override if multiple versions are installed.
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OPENSSL_BIN=openssl
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# ── Service user / group ────────────────────────────────────
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# Used by setup-ca.sh to set permissions on the TSA tier.
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# The Node.js service must run under this user.
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SERVICE_USER=nodejs
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SERVICE_GROUP=nodejs
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# ── End of configuration ────────────────────────────────────
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