AWS Security Blog
Category: Advanced (300)
Post-quantum TLS now supported in AWS KMS
January 30, 2024: The API in this blog post has been changed in newer version of the AWS CRT Client. See this page for more info. January 25, 2023: AWS KMS, ACM, Secrets Manager TLS endpoints have been updated to only support NIST’s Round 3 picked KEM, Kyber. s2n-tls and s2n-quic have also been updated […]
How to migrate symmetric exportable keys from AWS CloudHSM Classic to AWS CloudHSM
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 […]
How to use AWS Secrets Manager to securely store and rotate SSH key pairs
July 2, 2025: The approach in this blog post is no longer required or recommended to manage SSH keys for EC2 Instances. We instead recommend using EC2 Instance Connect that uses AWS Identity and Access Management (IAM) policies and principals to control SSH access to your instances, removing the need to share and manage SSH […]
How to migrate a digital signing workload to AWS CloudHSM
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 […]
How to set up an outbound VPC proxy with domain whitelisting and content filtering
May 12, 2025: We’ve updated the CloudFormation template to use a launch template instead of a launch configuration. November 16, 2020: We’ve updated the CloudFormation template and the launch stack URL used in this solution. July 24, 2019: We’ve added a link to a GitHub repository that contains the stack content for this solution. Controlling […]
How to securely provide database credentials to Lambda functions by using AWS Secrets Manager
April 29, 2022: This post has been updated based on working backwards from a customer need to securely allow access and use of Amazon RDS database credentials from a AWS Lambda function. In this blog post, we will show you how to use AWS Secrets Manager to secure your database credentials and send them to […]
How to use AWS Secrets Manager client-side caching in .NET
December 5, 2019: We removed some information about ASP .NET projects that is no longer relevant. November 14, 2019: We updated the cache library code sample. AWS Secrets Manager now has a client-side caching library for.NET that makes it easier to access secrets from .NET applications. This is in addition to client-side caching libraries for […]
Simplify DNS management in a multi-account environment with Route 53 Resolver
March 31, 2025: We provided a note and links to resources in the third use case on using Route 53 profiles as a best practice to enable DNS resolutions between VPCs in different AWS accounts. April 19, 2023: In the section “Create private hosted zones” we updated step 1 to fix syntax error. September 27, […]
How to decrypt ciphertexts in multiple regions with the AWS Encryption SDK in C
November 1, 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. You’ve told us that you want to encrypt data once with AWS Key Management Service […]
Create fine-grained session permissions using IAM managed policies
As a security best practice, AWS Identity and Access Management (IAM) recommends that you use temporary security credentials from AWS Security Token Service (STS) when you access your AWS resources. Temporary credentials are short-term credentials generated dynamically and provided to the user upon request. Today, one of the most widely used mechanisms for requesting temporary […]