| name | ssl-cert-lfcycl-mgmt |
| description | SSL/TLS certificate lifecycle management encompasses the full process of requesting, issuing, deploying, monitoring, renewing, and revoking X.509 certificates. Poor certificate management is a leading |
| domain | cybersecurity |
| subdomain | cryptography |
| tags | ["cryptography","ssl","certificates","pki","tls","key-management"] |
| version | 1.0 |
| author | mahipal |
| license | Apache-2.0 |
| nist_csf | ["PR.DS-01","PR.DS-02","PR.DS-10"] |
Performing SSL Certificate Lifecycle Management
Overview
SSL/TLS certificate lifecycle management encompasses the full process of requesting, issuing, deploying, monitoring, renewing, and revoking X.509 certificates. Poor certificate management is a leading cause of outages and security incidents. This skill covers automating the entire certificate lifecycle using Python and ACME protocol tools.
When to Use
- When conducting security assessments that involve performing ssl certificate lifecycle management
- When following incident response procedures for related security events
- When performing scheduled security testing or auditing activities
- When validating security controls through hands-on testing
Prerequisites
- Familiarity with cryptography concepts and tools
- Access to a test or lab environment for safe execution
- Python 3.8+ with required dependencies installed
- Appropriate authorization for any testing activities
Objectives
- Generate Certificate Signing Requests (CSRs) programmatically
- Parse and validate X.509 certificates
- Monitor certificate expiration across infrastructure
- Automate renewal using ACME protocol (Let's Encrypt)
- Implement certificate revocation checking (CRL and OCSP)
- Track certificate inventory across multiple domains
Key Concepts
Certificate Lifecycle Stages
- Request: Generate key pair and CSR
- Issuance: CA validates and issues certificate
- Deployment: Install certificate on servers
- Monitoring: Track expiration and health
- Renewal: Request new certificate before expiry
- Revocation: Invalidate compromised certificates
Certificate Types
| Type | Validation | Use Case |
|---|
| DV (Domain Validation) | Domain ownership | Websites, APIs |
| OV (Organization Validation) | Domain + org identity | Business sites |
| EV (Extended Validation) | Full legal verification | E-commerce, banking |
| Wildcard | *.domain.com | Multi-subdomain |
| SAN/UCC |
