Re: [Fed-Talk] Memory usage spikes when viewing Signed Emails
Re: [Fed-Talk] Memory usage spikes when viewing Signed Emails
- Subject: Re: [Fed-Talk] Memory usage spikes when viewing Signed Emails
- From: Mike Jackson <email@hidden>
- Date: Tue, 28 Aug 2007 18:35:04 -0400
That seems to be a bit excessive, even for a cryptographic type
program.. Don't you think?
--
Mike Jackson Senior Research Engineer
Innovative Management & Technology Services
On Aug 28, 2007, at 6:29 PM, Alan B Stepakoff wrote:
OCSP is the process for checking whether an x.509 certificate has
been revoked or not.
The system must be loading an OCSP daemon when checking the
signature cert.
Alan Stepakoff
At 5:57 PM -0400 8/28/07, Mike Jackson wrote:
That email from Shawn today with the subject "Re: [Fed-Talk] Mac
Ownership & Permissions (UNCLASSIFIED)". Anything from Tim Miller
(Sorry Tim.. ;-) ) and a few others. This is with Apple Mail on
10.4.10. Nothing else is special about the system unless you count
all the developer stuff from Apple that has been installed.
Ok. I did some digging and using those superpowers that Activity
Monitor grants me, the culprit seems to be 'ocspd', which when I
tried to view a signed email that was on this list a few days ago,
the memory spiked to 800MB and locked up the GUI for about 30
seconds. Is this normal?
--
Mike Jackson Senior Research Engineer
Innovative Management & Technology Services
On Aug 28, 2007, at 5:46 PM, Bill Wagner wrote:
That really can't be answered without knowing more information:
1. How big are the e-mails and/or the data contained in them?
2. Are the e-mails self signed or are they checked against a
public key?
3. Is this custom software as in that provided in a package
developed
for you or is it off the shelf with no modification.
4. Is this happening on all signed e-mails or just some of them?
5. Do you know what type of signing algorithms are being used?
If they're simple text e-mails and everything is off the shelf, I
would think you might want to assume this is some type of OS bug.
If the e-mails contain data such as images or reports of any
type, then it means the e-mail and every byte of data in the
included documents or images is likely being hashed through a
signing algorithm to check its validity. This can be pretty
memory and CPU intensive, but I have to admit unless this is
being done to mega-documents or mega-images, eating up 700M
sounds pretty inefficient.
I would need more information to even hazard a guess.
Bill Wagner
http://www.scsc-online.com
inefficient.Mike Jackson wrote:
Why does my computer (Mac Book Pro, 2GB Ram, 160GB Drive) seem
to lock up and the memory usage spike ( to about 700MB) every
time I try to view a signed email? This is getting to the point
where I am about to put a filter to just delete anything from
those people I know sign their emails.. just getting frustrating.
This is with OS X 10.4.10. There is always lots of Ram available
when this happens as I monitor it with a utility constantly.
The same thing happens with Safari when I log into the US Air
Force Web Mail site with my CAC.
Thanks for any help.
--
Mike Jackson
imikejackson & gmail * com
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