At 12:26 PM 25/10/95 -0700, Randy Medd wrote:
[...]
>I don't know about jazz's MOVER program, but Telamon's lzw compressor
>programs know how to archive Image data-sets without your having to
>change the file codes to non-priv values beforehand.  Just archive the
>sets into one non-priv package, ftp it as a binary file, and then use
>lzw to re-expand the data-sets back to their original form.
 
Last week I solicited comments from the SigSysMan list about security
concerns (some more would be appreciated).  Programs like lzw and quark and
others have a security risk associated with their use since they can access
privileged files and copy them to non-privileged files.  A hacker (within a
company) could possibly use this as a means to examine database passwords,
or view the raw data.  Then again, a STORE tape left lying about could be
even more dangerous!  Still, while these programs can provide immense
benefit, a cautious man will try to minimize the risks by protecting these
programs from unauthorised use.
----
Jim "seMPEr" Wowchuk
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