AWS Security Blog
Category: AWS Certificate Manager
How to evaluate and use ECDSA certificates in AWS Certificate Manager
AWS Certificate Manager (ACM) is a managed service that enables you to provision, manage, and deploy public and private SSL/TLS certificates that you can use to securely encrypt network traffic. You can now use ACM to request Elliptic Curve Digital Signature Algorithm (ECDSA) certificates and associate the certificates with AWS services like Application Load Balancer (ALB) […]
Amazon introduces dynamic intermediate certificate authorities
February 27, 2023: We’ve updated question and answer #3 on this blog post. October 7, 2022: This blog post has been updated to include a Frequently Asked Questions section at the end. September 30, 2022: This blog post has been updated to include the addition of the CN=Starfield Services Root Certificate Authority – G2,O=Starfield Technologies\, […]
How to use ACM Private CA for enabling mTLS in AWS App Mesh
Securing east-west traffic in service meshes, such as AWS App Mesh, by using mutual Transport Layer Security (mTLS) adds an additional layer of defense beyond perimeter control. mTLS adds bidirectional peer-to-peer authentication on top of the one-way authentication in normal TLS. This is done by adding a client-side certificate during the TLS handshake, through which […]
How to securely create and store your CRL for ACM Private CA
December 14, 2021:The code in step #8 under Deploying the CRL solution has been updated to reflect new features preventing the confused deputy problem in AWS bucket policies. In this blog post, I show you how to protect your Amazon Simple Storage Service (Amazon S3) bucket while still allowing access to your AWS Certificate Manager […]
TLS-enabled Kubernetes clusters with ACM Private CA and Amazon EKS
October 21, 2021: We updated this post to a new version of the helm chart awspca/aws-privateca-issuer. The old version of the chart awspca/aws-pca-issuer will no longer receive updates. In this blog post, we show you how to set up end-to-end encryption on Amazon Elastic Kubernetes Service (Amazon EKS) with AWS Certificate Manager Private Certificate Authority. […]
Create a portable root CA using AWS CloudHSM and ACM Private CA
March 15, 2022: This post has been updated to correct typos. With AWS Certificate Manager Private Certificate Authority (ACM Private CA) you can create private certificate authority (CA) hierarchies, including root and subordinate CAs, without the investment and maintenance costs of operating an on-premises CA. In this post, I will explain how you can use […]
How to implement a hybrid PKI solution on AWS
As customers migrate workloads into Amazon Web Services (AWS) they may be running a combination of on-premises and cloud infrastructure. When certificates are issued to this infrastructure, having a common root of trust to the certificate hierarchy allows for consistency and interoperability of the Public Key Infrastructure (PKI) solution. In this blog post, I am […]
How to monitor expirations of imported certificates in AWS Certificate Manager (ACM)
Certificates are vital to maintaining trust and providing encryption to internal or external facing infrastructure and applications. AWS Certificate Manager (ACM) provides certificate services to any workload that requires them. Although ACM provides managed renewals that automatically renew certificates in most cases, there are exceptions, such as imported certs, where an automatic renewal isn’t possible. […]
Use ACM Private CA for Amazon API Gateway Mutual TLS
October 5, 2021: In the section “Retrieving your ACM Private CA root CA certificate public key,” in step 4, we’ve updated the formatting of the commands to indicate placeholder text. May 14, 2021: In the section “Retrieving your ACM Private CA root CA certificate public key,” in step 1, we updated the command to include […]
Use AWS Secrets Manager to simplify the management of private certificates
AWS Certificate Manager (ACM) lets you easily provision, manage, and deploy public and private Secure Sockets Layer/Transport Layer Security (SSL/TLS) certificates for use with Amazon Web Services (AWS) services and your internal connected resources. For private certificates, AWS Certificate Manager Private Certificate Authority (ACM PCA) can be used to create private CA hierarchies, including root […]