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# sys.dm_database_encryption_keys (Transact-SQL)
[!INCLUDE[tsql-appliesto-ss2008-asdb-xxxx-xxx-md](../../includes/tsql-appliesto-ss2008-asdb-xxxx-xxx-md.md)]

  Returns information about the encryption state of a database and its associated database encryption keys. For more information about database encryption, see [Transparent Data Encryption (TDE)](../../relational-databases/security/encryption/transparent-data-encryption.md).  
 
|Column Name|Data Type|Description|  
|-----------------|---------------|-----------------|  
|database_id|**int**|ID of the database.|  
|encryption_state|**int**|Indicates whether the database is encrypted or not encrypted.<br /><br /> 0 = No database encryption key present, no encryption<br /><br /> 1 = Unencrypted<br /><br /> 2 = Encryption in progress<br /><br /> 3 = Encrypted<br /><br /> 4 = Key change in progress<br /><br /> 5 = Decryption in progress<br /><br /> 6 = Protection change in progress (The certificate or asymmetric key that is encrypting the database encryption key is being changed.)|  
|create_date|**datetime**|Displays the date the encryption key was created.|  
|regenerate_date|**datetime**|Displays the date the encryption key was regenerated.|  
|modify_date|**datetime**|Displays the date the encryption key was modified.|  
|set_date|**datetime**|Displays the date the encryption key was applied to the database.|  
|opened_date|**datetime**|Shows when the database key was last opened.|  
|key_algorithm|**nvarchar(32)**|Displays the algorithm that is used for the key.|  
|key_length|**int**|Displays the length of the key.|  
|encryptor_thumbprint|**varbinary(20)**|Shows the thumbprint of the encryptor.|  
|encryptor_type|**nvarchar(32)**|**Applies to**: [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] ([!INCLUDE[ssSQL11](../../includes/sssql11-md.md)] through [current version](http://go.microsoft.com/fwlink/p/?LinkId=299658)).<br /><br /> Describes the encryptor.|  
|percent_complete|**real**|Percent complete of the database encryption state change. This will be 0 if there is no state change.|  
  
## Permissions

On [!INCLUDE[ssNoVersion_md](../../includes/ssnoversion-md.md)], requires `VIEW SERVER STATE` permission.   
On [!INCLUDE[ssSDS_md](../../includes/sssds-md.md)], requires the `VIEW DATABASE STATE` permission in the database.   

## See Also  

 [Security-Related Dynamic Management Views and Functions &#40;Transact-SQL&#41;](../../relational-databases/system-dynamic-management-views/security-related-dynamic-management-views-and-functions-transact-sql.md)   
 [Transparent Data Encryption &#40;TDE&#41;](../../relational-databases/security/encryption/transparent-data-encryption.md)   
 [SQL Server Encryption](../../relational-databases/security/encryption/sql-server-encryption.md)   
 [SQL Server and Database Encryption Keys &#40;Database Engine&#41;](../../relational-databases/security/encryption/sql-server-and-database-encryption-keys-database-engine.md)   
 [Encryption Hierarchy](../../relational-databases/security/encryption/encryption-hierarchy.md)   
 [ALTER DATABASE SET Options &#40;Transact-SQL&#41;](../../t-sql/statements/alter-database-transact-sql-set-options.md)   
 [CREATE DATABASE ENCRYPTION KEY &#40;Transact-SQL&#41;](../../t-sql/statements/create-database-encryption-key-transact-sql.md)   
 [ALTER DATABASE ENCRYPTION KEY &#40;Transact-SQL&#41;](../../t-sql/statements/alter-database-encryption-key-transact-sql.md)   
 [DROP DATABASE ENCRYPTION KEY &#40;Transact-SQL&#41;](../../t-sql/statements/drop-database-encryption-key-transact-sql.md)