[5095] in cryptography@c2.net mail archive
Re: Encrypting filenames
daemon@ATHENA.MIT.EDU (Bill Stewart)
Sun Jul 11 19:16:41 1999
Date: Sat, 10 Jul 1999 22:05:27 -0700
To: Steve Hawkinson <hawkinson@lcse.umn.edu>, cryptography@c2.net
From: Bill Stewart <bill.stewart@pobox.com>
In-Reply-To: <Pine.SGI.3.91.990710152754.23278G-100000@merlot.lcse.umn.e
du>
At 04:00 PM 7/10/99 -0500, Steve Hawkinson wrote:
>Does anybody have any ideas on what would be a good algorithm for
>encrypting filenames? I would like for the alogorithm to do compression
>also. CFS uses an algorithm that lengthens the filename, thereby shortening
>the maximum allowed length of the clear text filename. I want to avoid
>this and possibly store extra metadata in the filename.
What are you trying to accomplish by encrypting them?
What's the environment you're planning to use them in?
What's your threat model?
Is it ok to always use the same key? (Thus, 3-DES is fine.)
Do you need two-way encryption, or is a 1-way hash adequate?
Thanks!
Bill
Bill Stewart, bill.stewart@pobox.com
PGP Fingerprint D454 E202 CBC8 40BF 3C85 B884 0ABE 4639
