AWS Security Blog

Category: AWS Certificate Manager

How to deploy public ACM certificates across multiple AWS accounts and Regions using AWS CloudFormation StackSets

December, 6, 2022: The post had been updated to reflect the updates on Lambda function runtime in the cloudformation template from version 3.6 to 3.9, as 3.6 is deprecated, as well as updates in Lambda deployment package filename in the same template. In this post, I take you through the steps to deploy a public […]

How to import PFX-formatted certificates into AWS Certificate Manager using OpenSSL

In this blog post, we show you how to import PFX-formatted certificates into AWS Certificate Manager (ACM) using OpenSSL tools. Secure Sockets Layer and Transport Layer Security (SSL/TLS) certificates are small data files that digitally bind a cryptographic key pair to an organization’s details. The key pair is used to secure network communications and establish […]

How to use AWS RAM to share your ACM Private CA cross-account

In this post, I use the new Cross-Account feature of AWS Certificate Manager (ACM) Private Certificate Authority (CA) to create a CA in one account and then use ACM in a second account to issue a private certificate that automatically renews the following year. This newly available workflow expands the usability of ACM Private CA […]

Using ACM Private Certificate Authority in a multi-account environment by using IAM roles

In this post, we show you how you can use AWS Certificate Manager (ACM) Private Certificate Authority (CA) to request or issue private certificates across a multi-account environment by using IAM roles. This solution allows you to centralize your ACM Private CA inside your AWS Organization, which reduces the complexity and the cost of having […]

How to use AWS Certificate Manager with AWS CloudFormation

Last month, Amazon Web Services (AWS) introduced the ability to automate issuing and validating public and private certificates using AWS CloudFormation. To make this easier, AWS has introduced three new features that let you: Automate the steps to validate your domain with DNS validation and issue your public certificate. Use AWS CloudFormation templates to issue […]

Monitoring AWS Certificate Manager Private CA with AWS Security Hub

Certificates are a vital part of any security infrastructure because they allow a company’s internal or external facing products, like websites and devices, to be trusted. To deploy certificates successfully and at scale, you need to set up a certificate authority hierarchy that provisions and issues certificates. You also need to monitor this hierarchy closely, […]

Code signing using AWS Certificate Manager Private CA and AWS Key Management Service asymmetric keys

August 31, 2021: AWS KMS is replacing the term customer master key (CMK) with AWS KMS key and KMS key. The concept has not changed. To prevent breaking changes, AWS KMS is keeping some variations of this term. More info. In this post, we show you how to combine the asymmetric signing feature of the […]

How to create certificates with custom extensions using AWS Certificate Manager Private CA

Digital certificates, also known as X.509 or TLS/SSL certificates, are used to prove the identity of entities like web servers or VPN users and to establish secure communication channels between them. In this blog post, I’ll discuss certificate extensions. You can use certificate extensions for applications beyond the common use case of identifying TLS server […]

Digital signing with the new asymmetric keys feature of AWS KMS

October 29, 2021: AWS KMS is replacing the term customer master key (CMK) with AWS KMS key and KMS key. The concept has not changed. To prevent breaking changes, AWS KMS is keeping some variations of this term. More info. AWS Key Management Service (AWS KMS) now supports asymmetric keys. You can create, manage, and […]

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How to host and manage an entire private certificate infrastructure in AWS

AWS Certificate Manager (ACM) Private Certificate Authority (CA) now offers the option for managing online root CAs and a full online PKI hierarchy. You can now host and manage your organization’s entire private certificate infrastructure in AWS. Supporting a full hierarchy expands AWS Certificate Manager (ACM) Private Certificate Authority capabilities. CA administrators can use ACM […]