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https://issues.apache.org/jira/browse/IGNITE-8871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16673011#comment-16673011
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Artem Budnikov commented on IGNITE-8871:
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[~NIzhikov] 

I've read the IEP-18 description in Ignite Wiki and have some questions with 
regard to implementation details. Is the page up to date? Could you please 
provide information on the following questions:

0) Are there any requirements for the master encryption key? 
1) Do I get it right that Cache Encryption Key is generated when the cache is 
started the first time and then stored in an encrypted form in a system cache?
2) Is SSL connection between node required for TDE to work or will it work 
without it? I tried to start a cluster without SSL configured and it launched 
just fine. 
3) You have this phrase in the wiki: "MEK must be decrypted by an administrator 
during cluster activation."  What actions are required from the administrator? 
4) Similarly, "Administrator sends the password via SSL for MEK decryption to 
any server node." What does the administrator need to do to send the password? 
5) Is the master key exchanged between the nodes?

> TDE - Phase-1. Documentation
> ----------------------------
>
>                 Key: IGNITE-8871
>                 URL: https://issues.apache.org/jira/browse/IGNITE-8871
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: documentation
>    Affects Versions: 2.5
>            Reporter: Nikolay Izhikov
>            Assignee: Artem Budnikov
>            Priority: Major
>              Labels: documentation
>             Fix For: 2.7
>
>
> TDE feature should be documented.



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