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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [Solved] Encrypted column in DB2

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[Solved] Encrypted column in DB2
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jrh
Member
posted
I have a column in DB2 that is encrypted. Other than using a pass-thru SQL, I have not been able to figure out how to decrypt this column. I assume you would specify the encryption key on the fieldname in the metadata but I have not been able to find any information on this.

Any help would be appreciated.

Thanks,
John

This message has been edited. Last edited by: jrh,


WebFOCUS 7.7
Windows, All Outputs
 
Posts: 12 | Location: Columbia Tennessee | Registered: June 13, 2012Report This Post
Doug
Expert
posted Hide Post
It sounds like it would come thru if you had a different level of access, one which decrypts during a read. I've encountered something like that a while (years) ago. What's your DBAs have to say about that (decrypt on read access)?
 
Posts: 3132 | Location: Tennessee, Nashville area | Registered: February 23, 2005Report This Post
jrh
Member
posted Hide Post
Doug,

Thanks for your response.

Decrypting the column on DB2's side is not a problem. If I do a pass-thru SQL and give it the encryption key in the select statement, it decrypts fine. However, in this case I have to have the encryption key. We do not want the developers to have this key. My plan was to have the encryption key in the metadata and then I could encrypt the .mas file. Maybe my assumption is not valid. Is it possible to specify an encryption key in the metadata.

Thanks,
John


WebFOCUS 7.7
Windows, All Outputs
 
Posts: 12 | Location: Columbia Tennessee | Registered: June 13, 2012Report This Post
jrh
Member
posted Hide Post
Beginning with version 7.7.03, a new function was added allowing for the insertion of native SQL expressions into a DB2 query. The function is 'SQL'.

Here is an example of how it is used in the select:

DEFINE FILE QUOTE_NIN_INFO
TSN/A124 = SQL.DECRYPT_CHAR(QNIN_SSN, 'ssn_encrypt' );
END

Here is how it might be used in a WHERE statement:

WHERE SQL.DECRYPT_CHAR(QNIN_SSN, 'ssn_encrypt' ) LE '2'

Thanks,
John


WebFOCUS 7.7
Windows, All Outputs
 
Posts: 12 | Location: Columbia Tennessee | Registered: June 13, 2012Report This Post
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