Increasing Your Security Posture when Using Amazon S3
S3 Encryption Mechanisms
Amazon S3 Lifecycle Configurations
Introduction to Amazon EFS
EFS in Practice
Amazon Elastic Block Store (EBS)
AWS Storage Gateway
Performance Factors Across AWS Storage Services
The course is part of this learning path
This section of the AWS Certified Solutions Architect - Professional learning path introduces you to the core storage concepts and services relevant to the SAP-C02 exam. We start with an introduction to AWS storage services, understand the options available, and learn how to select and apply AWS storage services to meet specific requirements.
- Obtain an in-depth understanding of Amazon S3 - Simple Storage Service
- Learn how to improve your security posture in S3
- Get both a theoretical and practical understanding of EFS
- Learn how to create an EFS file system, manage EFS security, and import data in EFS
- Learn about EC2 storage and Elastic Block Store
- Learn about the different performance factors associated with AWS storage services
Depending on your requirements, one method of encryption may be more appropriate than another. To help you decide, here is a quick overview of each.
Server-side encryption with S3 managed keys, SSE-S3. This option requires minimal configuration and all management of encryption keys used are managed by AWS. All you need to do is to upload your data and S3 will handle all other aspects.
Server-side encryption with KMS managed keys, SSE-KMS. This method allows S3 to use the key management service to generate your data encryption keys. KMS gives you a far greater flexibility of how your keys are managed. For example, you are able to disable, rotate, and apply access controls to the CMK, and audit it against their usage using AWS CloudTrail.
Server-side encryption with customer provided keys, SSE-C. This option gives you the opportunity to provide your own master key that you may already be using outside of AWS. Your customer-provided key would then be sent with your data to S3, where S3 would then perform the encryption for you.
Client-side encryption with KMS, CSE-KMS. Similarly to SSE-KMS, this also uses the key management service to generate your data encryption keys. However, this time KMS is called upon via the client not S3. The encryption then takes place client-side and the encrypted data is then sent to S3 to be stored.
Client-side encryption with customer provided keys, CSE-C. Using this mechanism, you are able to utilize your own provided keys and use an AWS-SDK client to encrypt your data before sending it to S3 for storage.
Okay, that has given us a very high-level overview of the five different methods. Via a series of diagrams, I will now explain how the encryption and decryption process works for each.
Danny has over 20 years of IT experience as a software developer, cloud engineer, and technical trainer. After attending a conference on cloud computing in 2009, he knew he wanted to build his career around what was still a very new, emerging technology at the time — and share this transformational knowledge with others. He has spoken to IT professional audiences at local, regional, and national user groups and conferences. He has delivered in-person classroom and virtual training, interactive webinars, and authored video training courses covering many different technologies, including Amazon Web Services. He currently has six active AWS certifications, including certifications at the Professional and Specialty level.