Hi,
This could be related to the slowness of RAND_poll under Windows 7. See
: http://rt.openssl.org/Ticket/Display.html?id=2100&user=guest&pass=guest
Your second process is certainly trying to initialize its RNG and that's
why you see this delay.
Do you confirm that you are executing these processes under Windows 7?
--
Mounir IDRASSI
IDRIX
http://www.idrix.fr
On 5/4/2011 7:02 AM, Ashwin Chandra wrote:
I generate an RSA key using RSA_generate_key in one process. I then
take the RSA structure that is generated and serialize it and send it
to another process via an RPC mechanism. In the other process I then
de-serialize the RSA data and use that as input to an
RSA_private_decrypt function to decrypt some data that was previously
encrypted with the RSA public key.
This works fine and I am able to decrypt the data successful, HOWEVER,
it takes a long time to do so, like up to 2 seconds. It is almost as
if it is doing another key generation in the background. Note that if
I do this RSA_private_decrypt in the same process as the one that
generated the key, it takes around 20-30 ms.
This leads me to think that maybe there is some static data that the
openssl library uses in RSA_private_decrypt that was cached when I
generated the key and now is not available since it is a new process.
Can anyone enlighten me on this?
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