EBS encryption: Encrypt an EBS Volume

Amazon EBS encryption

EBS encryption: Use Amazon EBS encryption as a straightforward encryption answer for your EBS assets related to your EC2 occurrences. With Amazon EBS encryption, you’re not needed to assemble, keep up with, and secure your own key administration foundation. Amazon EBS encryption utilizes AWS KMS keys when making encoded volumes and depictions.

Encryption tasks happen on the workers that have EC2 occurrences, guaranteeing the security of the two information very still and information on the way between an example and its joined EBS stockpiling.

You can join both scrambled and decoded volumes to a case all the while.

How EBS encryption functions?

You can scramble both the boot and information volumes of an EC2 occasion.

At the point when you make an encoded EBS volume and join it to an upheld case type, the accompanying kinds of information are scrambled:

• Information very still inside the volume
• All information moving between the volume and the occurrence
• All previews made from the volume
• All volumes made from those previews

EBS scrambles your volume with an information key utilizing the business standard AES-256 calculation. Your information key is put away on a plate with your scrambled information, yet not before EBS encodes it with your KMS key. Your information key never shows up on a plate in plaintext. Similar information key is shared by previews of the volume and any ensuing volumes made from those depictions. For more data, see Data keys in the AWS Key Management Service Developer Guide.

Amazon EC2 works with AWS KMS to scramble and decode your EBS volumes in marginally various ways relying upon whether the preview from which you make an encoded volume is scrambled or decoded.

How EBS encryption functions when the preview is scrambled

At the point when you make a scrambled volume from an encoded preview that you own, Amazon EC2 works with AWS KMS to encode and decode your EBS volumes as follows:

• Amazon EC2 sends a GenerateDataKeyWithoutPlaintext solicitation to AWS KMS, indicating the KMS key that you decided for volume encryption.
• AWS KMS creates another information key, encodes it under the KMS key that you decided for volume encryption, and sends the scrambled information key to Amazon EBS to be put away with the volume metadata.
• At the point when you connect the scrambled volume to an example, Amazon EC2 sends a CreateGrant solicitation to AWS KMS with the goal that it can unscramble the information key.
• AWS KMS unscrambles the scrambled information key and sends the decoded information key to Amazon EC2.
• Amazon EC2 utilizes the plaintext information key in hypervisor memory to scramble plate I/O to the volume. The plaintext information key continues in memory as long as the volume is connected to the example.

How EBS encryption functions when the preview is decoded

At the point when you make a scrambled volume from decoded depiction, Amazon EC2 works with AWS KMS to encode and unscramble your EBS volumes as follows:

1. Amazon EC2 sends a CreateGrant solicitation to AWS KMS, so it can encode the volume that is made from the preview.
2. Amazon EC2 sends a GenerateDataKeyWithoutPlaintext solicitation to AWS KMS, indicating the KMS key that you decided for volume encryption.
3. AWS KMS creates another information key, encodes it under the KMS key that you decided for volume encryption, and sends the scrambled information key to Amazon EBS to be put away with the volume metadata.
4. Amazon EC2 sends a Decrypt solicitation to AWS KMS to get the encryption key to encode the volume information.
5. At the point when you connect the scrambled volume to an example, Amazon EC2 sends a CreateGrant solicitation to AWS KMS, with the goal that it can unscramble the information key.
6. At the point when you append the encoded volume to an occasion, Amazon EC2 sends a Decrypt solicitation to AWS KMS, determining the scrambled information key.
7. AWS KMS unscrambles the encoded information key and sends the decoded information key to Amazon EC2.
8. Amazon EC2 utilizes the plaintext information key in hypervisor memory to scramble circle I/O to the volume. The plaintext information key endures in memory as long as the volume is appended to the example.

End

In this blog entry, I examined a few accepted procedures to utilize Amazon EBS encryption with your client oversaw CMK, which gives you more granular control to meet your consistency objectives. I began with the approaches required, covered how to make encoded volumes, dispatch scrambled occasions, make scrambled reinforcement, and offer scrambled information. Since you are an encryption master – feel free to turn on encryption naturally so that you’ll find the harmony of your brain your new volumes are constantly scrambled on Amazon EBS. To find out additional, visit the Amazon EBS presentation page.

On the off chance that you have input about this blog entry, submit remarks in the Comments area beneath. On the off chance that you have inquiries regarding this blog entry, start another string on the Amazon EC2 gathering or contact AWS Support.

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