Tag: certificates

Multiple popular browsers have announced that they will no longer trust public certificates issued by Entrust later this year. Certificates that are issued by Entrust on dates up to and including November 11, 2024 will continue to be trusted until they expire, according to current information from browser makers. Certificates issued by Entrust after that date […]

In this post, we’ll show how you can use AWS Private Certificate Authority (AWS Private CA) to issue a wide range of X.509 certificates that are tailored for specific use cases. These use-case bound certificates have their intended purpose defined within the certificate components, such as the Key Usage and Extended Key usage extensions. We […]

Amazon Web Services (AWS) successfully completed a surveillance audit for ISO 9001:2015, 27001:2022, 27017:2015, 27018:2019, 27701:2019, 20000-1:2018, and 22301:2019, and Cloud Security Alliance (CSA) STAR Cloud Controls Matrix (CCM) v4.0. Ernst and Young Certify Point auditors conducted the audit and reissued the certificates on Nov 22, 2023. The objective of the audit was to assess […]

In March 2022, AWS announced support for custom certificate extensions, including name constraints, using AWS Private Certificate Authority (AWS Private CA). Defining DNS name constraints with your subordinate CA can help establish guardrails to improve public key infrastructure (PKI) security and mitigate certificate misuse. For example, you can set a DNS name constraint that restricts […]

April 11, 2023: This post had been updated to provide clarifications: The recommendation to use SES or WorkMail as part of this solution is for receiving TLS reports sent via email from mail receiving organizations. It is unrelated to the BIMI and MTA-STS aspects or any core functionality of the solution.. If you own a […]

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) […]

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 […]

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 […]

Feb 17, 2025: This blog post references AWS CloudHSM Client SDK 3, which is no longer the recommended version. AWS recommends that you use the latest version, AWS CloudHSM Client SDK 5, which provides updated functionality and commands. We are currently working on an updated blog post for CloudHSM Client SDK 5. See the AWS […]

If you are an Amazon RDS customer, you might have received email from AWS notifying you about rotating your SSL certificates. The SSL certificates for RDS database instances are being updated on March 23, 2015, at 20:00 UTC. The certificates are being updated as part of standard maintenance and security best practices for RDS, and […]