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AWS Certificate Manager (ACM)

AWS Certificate Manager (ACM) is a service provided by Amazon Web Services that simplifies the creation, management, and deployment of SSL/TLS certificates for use with AWS services and your internal connected resources.

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What is AWS Certificate Manager (ACM)

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AWS Certificate Manager (ACM) is a service offered by Amazon Web Services that simplifies the management of digital certificates, crucial components in secure communications. In the digital age, ensuring the confidentiality and integrity of information as it travels across the internet is paramount. 

Digital certificates, particularly SSL/TLS certificates, play a pivotal role in this process by facilitating secure connections between clients and servers. They are essential for enabling HTTPS on websites, ensuring that data transfers remain confidential and are not tampered with during transmission. However, managing these certificates can be a complex task involving certificate issuance, renewal, and deployment. This is where AWS Certificate Manager steps in to streamline the process. 

ACM significantly eases the burden of managing certificates by automating many of the tasks that were previously manual and time-consuming. ACM manages renewal and deployment of Amazon-issued public certificates used with ACM-integrated services. For exported certificates, client-side automation must download and deploy renewed certificates. Imported third-party certificates are not renewed by ACM; users must monitor their expiration dates and renew them before they expire. 

Moreover, ACM is directly integrated with several other AWS services, such as Amazon CloudFront, Elastic Load Balancing, Amazon API Gateway, and more. This integration allows users to easily provision and deploy certificates across their AWS resources, streamlining the setup of SSL/TLS protection. The process is not only simplified but also made more robust and secure, as ACM takes care of the intricacies of encryption and authentication behind the scenes. 

ACM also offers exportable public certificates for workloads beyond integrated AWS services. Their certificates and private keys can be exported to terminate TLS on EC2 instances, containers, or on-premises hosts.

Security compliance is another area where ACM provides significant advantages. By managing the complexity of creating, storing, and managing digital certificates, ACM helps users adhere to security standards and compliance requirements. The assurance that communications are secured using industry-standard encryption methods, without the administrative complexity, is a considerable boon for businesses of all sizes.

In a nutshell, AWS Certificate Manager is a comprehensive service that addresses the challenges of managing SSL/TLS certificates in a cloud environment. Its automation of certificate renewal and deployment tasks, integration with other AWS services for seamless certificate provisioning, and contribution to security compliance make it an invaluable tool for anyone looking to secure their web applications and services. By abstracting away the complexity traditionally associated with certificate management, ACM enables businesses to focus on their core offerings while ensuring their digital assets are secured with the latest encryption standards.

Key AWS Certificate Manager (ACM) Features

AWS Certificate Manager (ACM) simplifies the provisioning, management, and deployment of SSL/TLS certificates for AWS-managed resources, automates certificate renewal, integrates with AWS services, supports centralized management and the import of existing certificates, offers a private CA for issuing certificates, and supports multiple domain names.

Provision, Manage, and Deploy SSL/TLS Certificates

AWS Certificate Manager (ACM) enables users to easily provision, manage, and deploy Secure Sockets Layer/Transport Layer Security (SSL/TLS) certificates on AWS-managed resources, such as Elastic Load Balancers, Amazon CloudFront distributions, and APIs on API Gateway, with no additional cost for the certificates.

Automated Certificate Renewal

ACM manages renewal and deployment of Amazon-issued public certificates used with ACM-integrated services; imported third-party certificates must be renewed by their owners.

Integrated with AWS Services

ACM is seamlessly integrated with several AWS services, enabling you to secure your applications by attaching SSL/TLS certificates directly to resources managed by services like Elastic Load Balancing, Amazon CloudFront, and API Gateway without dealing with the complexity of manually uploading certificates. Imported third-party certificates must still be renewed by their owners.

Centralized Management

Provides a centralized platform for managing SSL/TLS certificates, allowing organizations to maintain an inventory of all their certificates, track expiration dates, and monitor the status of certificates across all their AWS services and applications from a single console.

Import Your Own Certificates

While AWS Certificate Manager offers a convenient and cost-effective way to create and manage certificates, it also allows the import of SSL/TLS certificates obtained from other certificate authorities (CAs), giving users the flexibility to use their existing certificates.

Private Certificate Authority (CA)

ACM integrates with AWS Private Certificate Authority (AWS Private CA), enabling customers to create their own private CA and issue certificates for internal resources, enhancing security for applications that require private communication within an organization.

Support for Multiple Domain Names

ACM supports the provisioning of SSL/TLS certificates that secure multiple domain names and subdomains, making it easier to manage certificates for websites and applications that operate under different domain names or offer multiple services under various subdomains.

AWS Certificate Manager (ACM) Use Cases

AWS Certificate Manager (ACM) is primarily used for provisioning, managing, and deploying SSL/TLS certificates for Amazon CloudFront distributions, ELBs, AWS integrated services, and automating certificate renewals, thereby simplifying security and encryption tasks across AWS resources.

Securing Custom Domains on Amazon CloudFront

AWS Certificate Manager (ACM) is utilized to provision, manage, and deploy Secure Sockets Layer/Transport Layer Security (SSL/TLS) certificates for Amazon CloudFront distributions. This allows users to easily secure custom domain names and ensure encrypted traffic between their website and viewers, enhancing security and trustworthiness.

Encryption for Elastic Load Balancers

ACM can automatically provision and renew certificates used to enable HTTPS encryption on Elastic Load Balancers (ELBs), facilitating secure and encrypted communication to and from the ELB. This simplifies the process of managing SSL/TLS certificates, ensuring continuous protection without manual intervention.

Managing Certificates for AWS Integrated Services

AWS Certificate Manager seamlessly integrates with services like Amazon API Gateway, AWS Elastic Beanstalk, and others, allowing developers to easily implement and manage SSL/TLS certificates for these services. This capability ensures a simplified workflow for securing communication and data exchange within AWS services.

Automating Certificate Renewal

ACM manages renewal and deployment of Amazon-issued public certificates used with ACM-integrated services, reducing manual certificate maintenance. For exported certificates, client-side automation must retrieve and deploy the renewed certificates.

AWS Certificate Manager (ACM) pricing models

ACM provides free public SSL/TLS certificates, charges monthly for private certificates based on the region, and does not incur direct data transfer costs though related service costs apply.

ACME Public Certificates

ACME-enrolled certificates are charged per domain at issuance and each automatic renewal, with volume tiers based on monthly domain occurrences across certificates in the account. The first 30,000 ACME API calls per account per month are free; each subsequent 10,000 calls costs $0.50.

Data Transfer Pricing

Using ACM does not incur direct data transfer costs. However, data transfer costs associated with the AWS services that your ACM certificates are associated with (e.g., ELB, CloudFront) apply according to those services' pricing.

Exportable Public Certificates

Exportable public certificates cost $7 per standard fully qualified domain name and $79 per wildcard name at issuance and again at renewal. The first 10,000 export-certificate API calls per account per month are free; each subsequent 10,000 calls costs $0.50.

Free Public SSL/TLS Certificates

Amazon Web Services (AWS) Certificate Manager (ACM) offers free public SSL/TLS certificates for use with AWS resources such as Elastic Load Balancers, Amazon CloudFront distributions, and APIs on Amazon API Gateway.

Private Certificate Pricing

AWS Private CA charges a monthly fee for each private CA until it is deleted. Private certificates issued through ACM and used exclusively with ACM-integrated services are free; charges apply to private certificates not used exclusively with those services.

Services AWS Certificate Manager (ACM) integrates with

AWS Elastic Beanstalk image AWS Elastic Beanstalk

ACM is integrated with Elastic Beanstalk to automatically deploy SSL/TLS certificates for your applications.

Open AWS Elastic Beanstalk →
Amazon API Gateway image Amazon API Gateway

ACM allows you to deploy SSL/TLS certificates to secure the endpoints of your API Gateway.

Open Amazon API Gateway →
AWS CloudFormation image AWS CloudFormation

ACM certificates can be provisioned and managed through AWS CloudFormation templates.

Open AWS CloudFormation →
AWS CloudTrail image AWS CloudTrail

CloudTrail logs API calls related to ACM, providing visibility into certificate lifecycle events.

Open AWS CloudTrail →
Amazon CloudFront image Amazon CloudFront

ACM can be used to deploy SSL/TLS certificates for CloudFront distributions to ensure secure delivery of content.

Open Amazon CloudFront →
Elastic Load Balancing image Elastic Load Balancing (ELB)

ACM is integrated with Elastic Load Balancer instances, enabling easy deployment of SSL/TLS certificates for load balancers.

Open Elastic Load Balancing (ELB) →
Amazon Lightsail image Amazon Lightsail

Through Lightsail, ACM allows for easy creation and deployment of SSL/TLS certificates to secure Lightsail instances.

Open Amazon Lightsail →