查询以列出数据库的加密证书

Question

使用什么证书来加密实例上的每个数据库。

我可以使用以下方法获取数据，但如何编写查询

USE master
GO

-- this provides the list of certificates
SELECT * FROM sys.certificates


-- this provides the list of databases (encryption_state = 3) is encrypted
SELECT * FROM sys.dm_database_encryption_keys
 WHERE encryption_state = 3;

我注意到 sys.certifcates.thumbprint 和 sys.dm_database_encryption_keys.encryptor_thumbprint 列包含相同的数据。

Answer 1

您可以通过证书指纹加入：

use master;
go

select
    database_name = d.name,
    dek.encryptor_type,
    cert_name = c.name
from sys.dm_database_encryption_keys dek
left join sys.certificates c
on dek.encryptor_thumbprint = c.thumbprint
inner join sys.databases d
on dek.database_id = d.database_id;

我的示例输出：

database_name           encryptor_type    cert_name
=============           ==============    =========
tempdb                  ASYMMETRIC KEY    NULL
AdventureWorks2012TDE   CERTIFICATE       TdeCert

Answer 2

对于更深入的查询，显示哪些数据库已加密或未加密、其证书以及重要的是加密设置是否已实际完成。加密有时可能需要很长时间才能完成或陷入困境。

SELECT D.name AS 'Database Name'
,c.name AS 'Cert Name'
,E.encryptor_type AS 'Type'
,case
    when E.encryption_state = 3 then 'Encrypted'
    when E.encryption_state = 2 then 'In Progress'
    else 'Not Encrypted'
end as state,
E.encryption_state, E.percent_complete, E.key_algorithm, E.key_length, E.* FROM sys.dm_database_encryption_keys E
right join sys.databases D on D.database_id = E.database_id
left join sys.certificates c ON E.encryptor_thumbprint=c.thumbprint