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Enterprise Cloud Security and Governance

You're reading from  Enterprise Cloud Security and Governance

Product type Book
Published in Dec 2017
Publisher Packt
ISBN-13 9781788299558
Pages 410 pages
Edition 1st Edition
Languages
Author (1):
Zeal Vora Zeal Vora
Profile icon Zeal Vora
Toc

Table of Contents (11) Chapters close

Preface 1. The Fundamentals of Cloud Security 2. Defense in Depth Approach 3. Designing Defensive Network Infrastructure 4. Server Hardening 5. Cryptography Network Security 6. Automation in Security 7. Vulnerability, Pentest, and Patch Management 8. Security Logging and Monitoring 9. First Responder 10. Best Practices

Envelope encryption

In the previous case, using CMK to encrypt data has its own limitation related to the size of data that we can encrypt.

The encryption process

In this approach, instead of using CMK to directly encrypt our data, we generate a data key from CMK. This data key will be used to encrypt and decrypt our data.

The new data key can be generated with the help of the KMS generate data key operation. Using this operation, AWS KMS will return two values: the plaintext version of the data key and the ciphertext version of the data key:

We use the Plain Text Data version of the data key to encrypt our data for obtaining the Cipher Text Data:

Once the data is encrypted, we delete the plaintext data key and store the...

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