I wrote a little test client/server setup that transfers 100 MB of data
over an SSL socket configured to use TLS 1.2 AES GCM
(TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256). On my i7-4770 CPU @ 3.40GHz with
OpenJDK 1.8.0-ea-b124 I get a transfer rate of around 5.2 MiB/second. I
expected a higher speed.
Cross posting to security-dev, since the question cipher related.
-Chris.
On 27/01/14 09:28, Mark Christiaens wrote:
I wrote a little test client/server setup that transfers 100 MB of data
over an SSL socket configured to use TLS 1.2 AES GCM
(TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256). On my i7-
What's the platform are you using for the testing? Windows, Linux,
Solaris or Mac OS? GCM are now only implemented in SunJCE provider. I
want to make sure the crypto provider for AES-CBC, which is different
for different platforms by default, is not the major cause of the
performance impact.
Th
Silly me, forgot to mention that I'm working on Ubuntu, 64 bit, 13.10.
So, AES-CBC seems to be reasonably fast (100 MiB/s) but AES-GCM is slow
(5.2 MiB/s). I'm particularly curious about the GCM one because I get the
impression that OpenSSL should be able to reach in the GB/s for AES-GCM
encrypti
