Welcome to the new Amazon S3 User Guide! The Amazon S3 User Guide combines information and instructions from the three retired guides: Amazon S3 Developer Guide, Amazon S3 Console User Guide, and Amazon S3 Getting Started Guide.
Protecting data using encryption
Data protection refers to protecting data while in-transit (as it travels to and from Amazon S3) and at rest (while it is stored on disks in Amazon S3 data centers). You can protect data in transit using Secure Socket Layer/Transport Layer Security (SSL/TLS) or client-side encryption. You have the following options for protecting data at rest in Amazon S3:
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Server-Side Encryption – Request Amazon S3 to encrypt your object before saving it on disks in its data centers and then decrypt it when you download the objects.
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Client-Side Encryption – Encrypt data client-side and upload the encrypted data to Amazon S3. In this case, you manage the encryption process, the encryption keys, and related tools.
For more information about server-side encryption and client-side encryption, review the topics listed below.
