|
From: | edgar . soldin |
Subject: | Re: [Duplicity-talk] symmetric key, or public gpg key? |
Date: | Mon, 19 Oct 2009 21:23:02 +0200 |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.4pre) Gecko/20090915 Thunderbird/3.0b4 |
Just tried it ... and here are the results and the used script..
created a 2048bit key with a 24char password which was also used for
the symmetric encryption. Looks like keys are slightly faster in
encrypting, decrypting seems comparable. Repeated runs had similar
results. The difference is marginal considered a test object of over
256Megs. RESULTS: address@hidden:~> ./gpg_test.sh 524288+0 Datensätze ein 524288+0 Datensätze aus 268435456 bytes (268 MB) copied, 5,29084 seconds, 50,7 MB/s enc with key real 0m12.396s user 0m10.982s sys 0m1.096s dec with key real 0m18.475s user 0m15.488s sys 0m2.253s enc with pass real 0m15.150s user 0m12.324s sys 0m1.443s dec with pass real 0m18.073s user 0m15.640s sys 0m2.035s SCRIPT is attached .... ede On 19.10.2009 19:49, Kenneth Loafman wrote: Sorry, missed one of the questions... Encryption is covered by gpg directly. ...Ken Kenneth Loafman wrote:Duplicity is primarily IO bound, so I've never actually timed the difference. I imagine that unless you had an extremely old or slow processor, it would not be that much difference. ...Ken Chris Poole wrote:Thanks. I assume the encryption stuff is handled with gpgme or something; it's not actually your own encryption code? Also, do you know if a symmetric key would perform faster than using a public key? Chris Poole On Mon, Oct 19, 2009 at 2:01 PM, Kenneth Loafman <address@hidden <mailto:address@hidden>> wrote: Chris Poole wrote: > Hi, > I had planned to just use my gpg key for encryption. > > Now I'm wondering, will performance be better with a symmetric key? > > Even when I use my public key, it still asks for me a passphrase anyway. The current bzr version has the fix for this and it will be in 0.6.06. When adding the cache-sync part of the code I made it always ask for a password (not good). Now it does not unless it needs to sync the cache. I will try to get 0.6.06 out later this week. ...Ken _______________________________________________ Duplicity-talk mailing list address@hidden <mailto:address@hidden> http://lists.nongnu.org/mailman/listinfo/duplicity-talk------------------------------------------------------------------------ _______________________________________________ Duplicity-talk mailing list address@hidden http://lists.nongnu.org/mailman/listinfo/duplicity-talk_______________________________________________ Duplicity-talk mailing list address@hidden http://lists.nongnu.org/mailman/listinfo/duplicity-talk |
gpg_test.sh
Description: Text document
[Prev in Thread] | Current Thread | [Next in Thread] |