Comments on: How to: Decrypt SQL 2005/2008 database master keys on other servers http://blog.tatham.oddie.com.au/2008/10/28/how-to-decrypt-sql-20052008-database-master-keys-on-other-servers/ Wed, 08 Feb 2012 06:37:49 +0000 hourly 1 http://wordpress.com/ By: Rajesh http://blog.tatham.oddie.com.au/2008/10/28/how-to-decrypt-sql-20052008-database-master-keys-on-other-servers/#comment-16539 Thu, 16 Jun 2011 11:58:55 +0000 http://tatham.wordpress.com/?p=284#comment-16539 hi

my database cannot be attach because master key .i have only MDF file and master database of another instance

and password is forgeting so how to attach database plz help me

]]> By: Chris http://blog.tatham.oddie.com.au/2008/10/28/how-to-decrypt-sql-20052008-database-master-keys-on-other-servers/#comment-15592 Thu, 30 Dec 2010 06:58:54 +0000 http://tatham.wordpress.com/?p=284#comment-15592 Hello, this is a bit difficult question, here I go:
1. after using CREATE MASTER KEY ENCRYPTION BY PASSWORD = “123″, then CREATE CERTIFICATE, then CREATE SYMMETRIC KEY…I can encrypt a column of data. that is working great.
2. I can also decrypt the encrypted data. that is also working great.
3. here’s my problem: if someone writes “SELECT * from sys.symmetric_keys they can see a master key is established. then proceed to create a certificate and a symmetric key, then decrypt the data. I tried “DROP SYMMETRIC…DROP CERTIFICATE…DROP MASTER…but could not decrypt the hashed (binary) data.
4. question: is there a way to remember the 1 password used in the CREATE MASTER KEY script, and remove the master so nobody can use it without a password? I don’t want anyone able to create a certificate or a symmetric key, I’d like to pass the password into a Stored Proc as a parameter. Any suggestions?

Many thanks for your help,

Chris
Senior Software Engineer
C#.NET, VB.NET, T-SQL developer.

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