AWS Certificate Manager (ACM)

AWS Certificate Manager (ACM) centralizes the management of your SSL/TLS certificates that provide data encryption in transit. ACM makes it easy to provision, manage, and deploy public and private SSL/TLS certificates for use with AWS services and your internal connected resources.
Core Functionality​
Certificate Provisioning: Request and provision SSL/TLS certificates directly from ACM or import existing certificates from third-party certificate authorities.
Automatic Renewal: ACM automatically renews certificates before they expire, eliminating the manual work and potential downtime associated with certificate management.
Easy Deployment: Deploy certificates to integrated AWS services with a few clicks, simplifying the process of enabling HTTPS for your applications.
Cost-Effective: Public SSL/TLS certificates provisioned through ACM are provided at no additional charge when used with integrated AWS services.
Certificate Types​
Public Certificates: Certificates for public-facing websites and applications that are trusted by web browsers and other clients on the internet.
Private Certificates: Certificates for internal applications and services that require encryption within your organization's private networks.
Imported Certificates: Third-party certificates that you import into ACM for centralized management and deployment to AWS services.
Wildcard Certificates: Certificates that protect a domain and all its subdomains with a single certificate (e.g., *.example.com).
Use Cases​
Web Application Security​
Secure customer-facing websites and web applications with SSL/TLS certificates to protect data transmission and build user trust.
API Protection​
Encrypt API communications between clients and servers, ensuring sensitive data remains protected during transmission.
Load Balancer SSL Termination​
Offload SSL/TLS encryption to Application Load Balancers or Network Load Balancers for improved application performance.
Content Delivery Security​
Secure content delivery through Amazon CloudFront distributions with custom SSL/TLS certificates for your domains.
Connection to Other AWS Services​
Elastic Load Balancing: Deploy certificates to Application Load Balancers and Network Load Balancers for SSL termination and encrypted client connections.
Amazon CloudFront: Use custom SSL/TLS certificates with CloudFront distributions to serve content over HTTPS with your own domain names.
Amazon API Gateway: Secure API endpoints with custom domain names and SSL/TLS certificates for encrypted API communications.
AWS Elastic Beanstalk: Automatically configure SSL/TLS certificates for Elastic Beanstalk environments to secure web applications.
Amazon CloudFormation: Automate certificate provisioning and deployment as part of infrastructure-as-code deployments.
AWS Route 53: Integrate with Route 53 for domain validation during certificate provisioning and renewal processes.
AWS Certificate Manager Private CA: Work with Private CA to issue and manage private certificates for internal applications and services.
Key Features​
Domain Validation: Automatically validate domain ownership through DNS or email validation methods during certificate provisioning.
Certificate Transparency: All public certificates are logged in Certificate Transparency logs for enhanced security and accountability.
Export Capabilities: Export private certificates for use with services outside of AWS while maintaining centralized management.
Detailed Monitoring: Monitor certificate status, expiration dates, and renewal activities through the AWS console and APIs.
Tag-Based Management: Organize and manage certificates using tags for better governance and cost allocation.
Benefits​
Simplified Management: Eliminate the complexity of certificate lifecycle management with automated provisioning and renewal.
Enhanced Security: Ensure certificates are always current and properly configured, reducing security risks from expired certificates.
Cost Savings: Free public SSL/TLS certificates for AWS services eliminate the ongoing cost of third-party certificate authorities.
Improved Availability: Automatic renewal prevents service disruptions caused by expired certificates.
Integration Ease: Seamless integration with AWS services simplifies the deployment and management of encrypted communications.
Compliance Support: Help meet regulatory requirements for data encryption in transit across your applications and services.
AWS Certificate Manager provides a comprehensive solution for SSL/TLS certificate management, enabling organizations to secure their applications and APIs while reducing operational overhead and eliminating certificate-related outages.