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Managed Disk Encryption vs Azure Disk Encryption

Question
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According to Azure:
"Managed disks created since June 10, 2017 are encrypted at rest with Storage Service Encryption (SSE). You may also want to enable Azure Disk Encryption."
So if the Managed disks are now encrypted, what is the point of enabling Azure Disk Encryption? What am I missing?
Tuesday, June 12, 2018 1:34 PM
Answers
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Hi!
The reason to use Azure Disk Encryption (ADE) is because it offers IaaS virtual machines that are secure at REST with technology that meets industry and company standards.
The other reason is that it also offers IaaS virtual machines to boot under customer-controlled keys and policies which you can audit the usage through the key vault.
While Storage Service Encryption (SSE) does not offer any support for managed keys for managed disks, as of now.
Note: Both of these encryptions are REST technologies.
Best regards,
LeonBlog:
https://thesystemcenterblog.com LinkedIn:
- Proposed as answer by vikranth s Tuesday, June 12, 2018 3:02 PM
- Marked as answer by Landry Sufo Tuesday, June 12, 2018 8:02 PM
Tuesday, June 12, 2018 1:54 PM
All replies
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Hi!
The reason to use Azure Disk Encryption (ADE) is because it offers IaaS virtual machines that are secure at REST with technology that meets industry and company standards.
The other reason is that it also offers IaaS virtual machines to boot under customer-controlled keys and policies which you can audit the usage through the key vault.
While Storage Service Encryption (SSE) does not offer any support for managed keys for managed disks, as of now.
Note: Both of these encryptions are REST technologies.
Best regards,
LeonBlog:
https://thesystemcenterblog.com LinkedIn:
- Proposed as answer by vikranth s Tuesday, June 12, 2018 3:02 PM
- Marked as answer by Landry Sufo Tuesday, June 12, 2018 8:02 PM
Tuesday, June 12, 2018 1:54 PM -
In addition to Leon,
See below FAQs:
Q:How does the Storage Service encryption (SSE)different from Azure Disk Encryption?
A: Azure Disk Encryption is used to encrypt OS and data disks in IaaS VMs. For more information, see the Storage security guide.
Q:What if I enable Azure Disk Encryptionand SSEon my data disks?
A: This will work seamlessly. Both methods will encrypt your data.
For more information refer:
https://docs.microsoft.com/en-us/azure/storage/common/storage-service-encryption
https://docs.microsoft.com/en-in/azure/security/azure-security-disk-encryption
- Proposed as answer by vikranth s Tuesday, June 12, 2018 3:02 PM
Tuesday, June 12, 2018 3:02 PM -
Thanks for the clarificationsTuesday, June 12, 2018 8:03 PM
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Thanks for the clarificationsTuesday, June 12, 2018 8:03 PM
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We are glad to hear that your query is clarified.
Wednesday, June 13, 2018 8:16 PM