> tpl_sec_009
Secrets, Keys and Certificate Lifecycle Plan
Enterprise cryptographic management standard governing secret rotation cadences, HSM-backed master keys, automated TLS certificate renewal (ACME), and emergency secret leak revocation protocols.
Cryptographic engineering specification establishing automated secret rotation, hardware security module (HSM) key boundaries, 90-day TLS lifecycle, and rapid revocation runbooks.
Important Tech Document Template & Operational Notice
TinyCTO.tv Tech Document Template Notice: This template is a general educational and operational starting point. It is not legal, tax, accounting, investment, procurement, regulatory, security or certification advice. Requirements vary by jurisdiction, organization, contract and risk. Review and adapt it with qualified professionals before relying on it.
Problem Solved
Hardcoded API tokens in git repositories, expired production TLS certificates causing sudden outages, and unrotated master database passwords expose organizations to catastrophic breaches.
When to Use
- •Establishing enterprise-wide secrets management across CI/CD, microservices, and databases
- •Automating TLS/SSL certificate issuance and renewal via Cert-Manager and ACME protocols
- •Enforcing compliance with NIST SP 800-57 and FIPS 140-3 hardware-backed encryption standards
When NOT to Use
- •For general employee end-user workplace password manager rollouts (use TPL-SEC-008)
- •For business-level intellectual property copyright registration filings (use TPL-COM-005)
5 Template Sections & Structural Outline
API keys, database credentials, SSH private keys, symmetric KMS keys, and PKI root CAs classification.
FIPS 140-3 Level 3 HSM boundaries, AES-256-GCM symmetric ciphers, and asymmetric RSA-4096 / Ed25519 algorithms.
Mandatory rotation schedules: database passwords (30d), API tokens (90d), KMS master keys (365d), and service tokens (24h).
Short-lived certificates (max 90d), automated Let's Encrypt / ACME renewals at 60d, and mTLS service mesh identities.
Immediate token revocation APIs, blast radius auditing, git repository purge (git-filter-repo), and root-cause postmortem.
Completion Instructions
Independent Review Checklist
- All mandatory sections completed
- No secrets or passwords included
- Executive sponsor sign-off obtained
Secrets, Keys and Certificate Lifecycle Plan - Worked Case Study
Fictional Entity: Sovereign Cloud Payments Key & Secret Automation
Real-world production case study demonstrating complete operational adoption for Sovereign Cloud Payments Key & Secret Automation.
- •Automated zero-downtime rotation across 450 database credentials and 1,200 microservice API tokens
- •Deployed Cert-Manager ACME pipeline eliminating 100% of manual SSL/TLS certificate outages
- •Enforced FIPS 140-3 Level 3 Cloud KMS key protection with automated 365-day master key rotation
Frequently Asked Questions
Why is a 90-day maximum lifetime recommended for TLS certificates?
Shorter lifetimes limit the window of exposure if a private key is covertly stolen, and force organizations to build resilient automated certificate issuance (ACME) rather than relying on error-prone manual renewals.
What is Dynamic Secret Generation in HashiCorp Vault?
Dynamic secret generation creates unique, on-demand database credentials with an ephemeral time-to-live (e.g. 1 hour) specifically for a single service instance, destroying them automatically after use.
How should an exposed API secret in a public git repo be remediated?
1. Revoke the token immediately at the provider API, 2. Audit logs for unauthorized usage during the exposure window, 3. Issue a new rotated secret via Vault, 4. Clean git history using git-filter-repo.
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Authoritative Sources
- NIST SP 800-57 Part 1 Rev. 5: Recommendation for Key ManagementNIST • OFFICIAL REQUIREMENT
- CA/Browser Forum Baseline Requirements for TLS CertificatesCA/Browser Forum • OFFICIAL REQUIREMENT