Certainly you can encrypt VSAM data.  What you'd be doing is protecting
against the possibility that someone forklifts your IBM, EMC, and/or
Hitachi DASD out of your data center.  Make sure your security guards serve
coffee and donuts to make the thieves more comfortable while they're doing
that, OK? :-)

Are those data copied anywhere?  Like somebody's notebook computer (which
will be stolen) or a distributed server (which will be infected by a worm
that'll broadcast the info somewhere else, a la CardSystems)?  Those are
more urgent "worry points."  Quite honestly a lot of businesses are going
to have to consider their entire data handling strategies (or lack thereof)
to solve this problem.  And a gigantic part of the answer will be data
recentralization.

I would point you to two IBM statements of direction, by the way, from July
27th.  IBM said two things publicly: (1) IBM will ship a new z/OS product
in 2005 for encryption, and it will use ICSF (and thus hardware crypto
assist); (2) IBM plans to incorporate encryption capabilities directly into
its TotalStorage products.  (Insert standard disclaimers here.)

I can think of another possibility.  If you were to move the data into DB2
you've got two options: DB2's own encryption (which is excellent for
field-level) and the DB2/IMS Encryption Tool (which is excellent for
row-level and table-level).  There's a great article in the August z/OS
"Hot Topics" newsletter, published online by IBM, which discusses DB2
encryption.  To get VSAM into DB2 without changing your application code
you can use something called VSAM Transparency.  That recipe is another way
to do this, and it will be of primary interest to those shops with a
direction to move data into DB2 (to better support continuous online
operations, for example, or to provide improved access via things like
JDBC).  Sometimes you can do very well from a workload point of view if
you're able to take advantage of things like DB2 V8's materialized query
tables.

I posted a pretty complete list of encryption products to IBM-MAIN a few
weeks ago, so be sure to look at that in the archives.

Hope that helps.

- - - - -
Timothy F. Sipples
Consulting Enterprise Software Architect
IBM Americas zSeries/z9 Software
NEW Phone: +1 312 529 1612
E-Mail: [EMAIL PROTECTED] (PGP key available.)
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