openSSL performance

2013-10-09 Thread laurent . bollini
>Aside: this message was pretty garbled, and in richtext which my Outlook won't >fix sensibly. >I've tried to manually reformat what I can, but it would be easier if you >posted plaintext. Really sorry for that, I saw it only once message was already posted. Thanks for taking the time anyway.

openSSL performance

2013-10-09 Thread laurent . bollini
Hello again,>It doesn’t sound like you did profile, but rather a stop-watch at start and >stop. That’s more coarse-grained than I think you need to do. For example,>you need to measure time to do the key exchange, time to do the encryption, >time to put the traffic over the network. For example,

openSSL performance

2013-10-08 Thread laurent . bollini
>RSA key size only affects handshake, and should be costly client side only if >>using client-auth; are you?No; as client and server code is under my >responsability, I chosed to also asked for client-auth. Still, I don't see how >this could be the reason for my slowdown given the overall data

openSSL performance

2013-10-08 Thread laurent . bollini
(sorry for duplicating the thread, I did'nt receive any answer in my mailbox as I expected, I only saw them through the mail archive...?) >Are you sure that the key exchange is not a factor? Have you measured SSL >>setup times compared to post-setup transfer times?>4K RSA is computationally >exp

openSSL performance

2013-10-07 Thread laurent . bollini
Hello, I'm using openSSL on a low-end embedded processor: an Intel Atom running at 1.1Ghz.Using SSL divides down my transfer speed by two so I try to figure out how I can improve performance. For information I'm using 1.0.1e release, recompiled for Win32 (my embedded system uses an XP embedded)