Get S3 object securely using Curl and Openssl with SIGV4

As I was working on a project for a client, I encountered a challenging situation. I needed to retrieve S3 objects from EC2 instances that were built from an AMI from the AWS Marketplace and deployed in private subnets with no access to the internet. The S3 service is reachable via S3 Gateway endpoints deployed in these private subnets. ...

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