Is this Normal? Encrypted data is still same after alter master key regenerate with new password has been executed.


hi all,

this may normal want make sure.

i have encrypted data in table. can decrypt correctly without issue. here 1 row pkid =1

0x00f353374962954f9419c3641e96de610100000085a8516dbd9c95bbd256143ff1deb39825cbb8cc0cb8b164809303c335569fff9cca3d68543266f412b05c7022124bad0195f5229c7d24f89751d7527918b72f

i executed below steps change master key.

open master key decryption password = 'my0ldp@55word'    go        alter master key regenerate encryption password = 'mym0strecentnewp@ssword'    go.

everything executed successfully.

below  encrypted data pkid =1 

0x00f353374962954f9419c3641e96de610100000085a8516dbd9c95bbd256143ff1deb39825cbb8cc0cb8b164809303c335569fff9cca3d68543266f412b05c7022124bad0195f5229c7d24f89751d7527918b72f

decryption working correctly.

i notice encrypted data same old key , new key. normal. expecting different pattern in encrypted data after master key change. 

thanks in advance,

snaseer

houston-tx

read

encryption hierarchy

you have changed key gives access other keys.  when issue "alter master key regenerate "

the regenerate option re-creates database master key , keys protects. keys first decrypted old master key, , encrypted new master key. resource-intensive operation should scheduled during period of low demand, unless master key has been compromised.

alter master key

the other keys not changed, decrypted , re-encrypted.  data encrypted other keys does not have decrypted , re-encrypted.

david

david http://blogs.msdn.com/b/dbrowne/




SQL Server  >  Getting started with SQL Server



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