![]() Observe the following code that shows that I can create the same key twice as is evidence by my encrypting a value with the "first" key, dropping the key, re-generating it with the same KEY_SOURCE and IDENTITY_VALUE, and then decrypting the encrypted value. Your assessment is correct in that by knowing those two values, you can re-create the key. BACKUP SSIS Catalog, Database, Master key if exists. If you need to have the ability to duplicate a symmetric key, you should provide KEY_SOURCE and IDENTITY_VALUE. As SQL Server Administrator you will probably sometimes solve downgrade edition of SQL Server. ![]() I tried the next code, but seems it is not safe to me, because if you know KEY_SOURCE and IDENTITY_VALUE you actually do not need original Database Master Key and Certificate to decrypt the data CREATE SYMMETRIC KEY MySymmetricKey WITH KEY_SOURCE = '', ALGORITHM = AES_256, IDENTITY_VALUE = '' ENCRYPTION BY CERTIFICATE MyEncryptCert Without it I can not decrypt the encrypted data if I move the encrypted table to another Database. .): When a database is first attached to a new instance of SQL Server, a copy of the Database Master Key (encrypted by the Service Master Key) is not yet stored. BACKUP MASTER KEY TO FILE = 'c:\temp\key' ENCRYPTION BY PASSWORD = '' īACKUP CERTIFICATE MyEncryptCert TO FILE = 'c:\temp\cert' WITH PRIVATE KEY(ENCRYPTION BY PASSWORD='', FILE='C:\temp\cert.pvk')īut I can not backup Symmetric Key. Native backup files are encrypted with the. I am able to backup Database Master Key and Certificate. For more information, see Creating symmetric encryption KMS keys in the AWS Key Management Service Developer Guide. ![]() If a dependent key cannot be decrypted during a forced restore, data that is secured by that key will be lost. The service master key directly or indirectly secures all other keys in the tree. SET = ENCRYPTBYKEY(KEY_GUID('MySymmetricKey'), '') The service master key is the root of the SQL Server encryption hierarchy. ![]() How I encrypt data OPEN SYMMETRIC KEY MySymmetricKey DECRYPTION BY CERTIFICATE MyEncryptCert I use the next code to create SQL Encryption keys CREATE MASTER KEY ENCRYPTION BY PASSWORD = ''ĬREATE CERTIFICATE MyEncryptCert WITH SUBJECT = 'Descryption', EXPIRY_DATE = ''ĬREATE SYMMETRIC KEY MySymmetricKey WITH ALGORITHM = AES_256 ENCRYPTION BY CERTIFICATE MyEncryptCert
0 Comments
Leave a Reply. |