Book Image

Cloud Security Handbook

By : Eyal Estrin
Book Image

Cloud Security Handbook

By: Eyal Estrin

Overview of this book

Securing resources in the cloud is challenging, given that each provider has different mechanisms and processes. Cloud Security Handbook helps you to understand how to embed security best practices in each of the infrastructure building blocks that exist in public clouds. This book will enable information security and cloud engineers to recognize the risks involved in public cloud and find out how to implement security controls as they design, build, and maintain environments in the cloud. You'll begin by learning about the shared responsibility model, cloud service models, and cloud deployment models, before getting to grips with the fundamentals of compute, storage, networking, identity management, encryption, and more. Next, you'll explore common threats and discover how to stay in compliance in cloud environments. As you make progress, you'll implement security in small-scale cloud environments through to production-ready large-scale environments, including hybrid clouds and multi-cloud environments. This book not only focuses on cloud services in general, but it also provides actual examples for using AWS, Azure, and GCP built-in services and capabilities. By the end of this cloud security book, you'll have gained a solid understanding of how to implement security in cloud environments effectively.
Table of Contents (19 chapters)
1
Section 1: Securing Infrastructure Cloud Services
6
Section 2: Deep Dive into IAM, Auditing, and Encryption
10
Section 3: Threats and Compliance Management
14
Section 4: Advanced Use of Cloud Services

Data security in multi-cloud environments

Data security in the cloud relates to protecting data as it transfers over the network, at rest, and in use.

Encryption in transit

To secure your cloud environment, make sure that all data traverses through secured protocols. Some alternatives to secured protocols are as follows:

  • Enforce the use of TLS 1.2 for accessing resources over your entire multi-cloud environment.
  • Configure IPsec VPN tunnels between your on-premises and cloud environments, and between cloud providers.

Encryption at rest

All major cloud providers have their own Key Management Services (KMSes), for managing keys, secrets, credentials, and so on. Although the built-in KMSes can store, manage, retrieve, and rotate keys and secrets, they are integrated into their own cloud provider's ecosystem. When selecting a solution for handing encryption at rest, look for the following capabilities:

  • The ability to encrypt data at rest over multiple...