AWS Storage Blog

Charlie Llewellyn

Author: Charlie Llewellyn

Charlie Llewellyn is a Solutions Architect working in the Public Sector team with Amazon Web Services. He specializes in data analytics and enjoys helping customers use data to make better decisions. In his spare time he avidly enjoys mountain biking and cooking.

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Enabling and validating additional checksums on existing objects in Amazon S3

Update (12/1/2024): Read about default data integrity protections for new objects in Amazon S3, launched at AWS re:Invent 2025. Verifying data integrity during a data migration or data transfer is a data durability best practice that ensures your data is error-free and not corrupt as it reaches its destination. One way to verify the integrity […]

Amazon S3

Changing your Amazon S3 encryption from S3-Managed to AWS KMS

Customers who use Amazon Simple Storage Service (Amazon S3) often take advantage of S3-managed encryption keys (SSE-S3) for server-side object encryption (SSE). For many customers, the decision to use SSE-S3 meets their security requirements, as it protects their data at rest. However, for some other customers, SSE-S3 may have met their requirements initially, but their […]